MR ETOS ED User manual

Motor-drive unit
ETOS® ED
Operating Instructions
6385142/08 EN

© All rights reserved by Maschinenfabrik Reinhausen
Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited
unless expressly permitted.
Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents,
utility models or designs.
The product may have been altered since this document was published.
We reserve the right to change the technical data, design and scope of supply.
Generally the information provided and agreements made when processing the individual quotations and orders
are binding.
The original operating instructions were written in German.

Table of contents
Maschinenfabrik Reinhausen GmbH 2020 36385142/08 EN ETOS® ED
Table of contents
1 Introduction....................................................................................................................... 12
1.1 Manufacturer..................................................................................................................................... 12
1.2 Completeness................................................................................................................................... 12
1.3 Safekeeping...................................................................................................................................... 12
1.4 Notation conventions ........................................................................................................................ 12
1.4.1 Hazard communication system ...........................................................................................................................12
1.4.2 Information system..............................................................................................................................................14
1.4.3 Instruction system ...............................................................................................................................................14
1.4.4 Typographic conventions ....................................................................................................................................15
2 Safety................................................................................................................................. 16
2.1 Appropriate use ................................................................................................................................ 16
2.2 Fundamental safety instructions....................................................................................................... 17
2.3 Personnel qualification...................................................................................................................... 20
2.4 Personal protective equipment ......................................................................................................... 21
3 IT security.......................................................................................................................... 22
4 Product description.......................................................................................................... 26
4.1 Scope of delivery .............................................................................................................................. 26
4.2 Function description.......................................................................................................................... 26
4.3 Performance features ....................................................................................................................... 26
4.4 Variants............................................................................................................................................. 28
4.4.1 ETOS® ED L/ETOS® ED L-S.............................................................................................................................28
4.4.2 ETOS® ED XL ....................................................................................................................................................29
4.5 Design............................................................................................................................................... 30
4.5.1 Indication field .....................................................................................................................................................32
4.5.2 Anti-condensation heater ....................................................................................................................................32
4.5.3 Swing frame/terminal rail.....................................................................................................................................32
4.5.4 Position transmitter equipment............................................................................................................................33
4.5.5 Transmission gear cover plate ............................................................................................................................33
4.5.6 Ambient temperature sensor...............................................................................................................................34
4.5.7 ISM assemblies...................................................................................................................................................35
4.6 Nameplate ........................................................................................................................................ 41
4.7 Protective devices............................................................................................................................. 42

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4.8 Safety markings................................................................................................................................ 43
4.9 Emergency operation during switching blocking (X100 bridge)........................................................ 43
4.10 Visualization...................................................................................................................................... 44
4.10.1 Main screen.........................................................................................................................................................44
4.10.2 Additional operating controls and display elements when using the MControl touch panel (optional)................49
4.10.3 Operating concept...............................................................................................................................................49
5 Packaging, transport and storage .................................................................................. 55
5.1 Packaging......................................................................................................................................... 55
5.1.1 Suitability.............................................................................................................................................................55
5.1.2 Markings..............................................................................................................................................................56
5.2 Transportation, receipt and handling of shipments........................................................................... 56
5.3 Storage of shipments........................................................................................................................ 57
5.4 Unpacking shipments and checking for transportation damages ..................................................... 58
6 Mounting ........................................................................................................................... 60
6.1 Attaching the control cabinet to the transformer............................................................................... 60
6.2 Mounting drive shafts and bevel gear............................................................................................... 63
6.3 Centering on-load tap-changer and motor-drive unit........................................................................ 63
6.4 Connecting the ISM® assemblies .................................................................................................... 70
6.4.1 Cable recommendation (ISM® assemblies)........................................................................................................70
6.4.2 Information about connecting serial interfaces RS232 and RS485.....................................................................71
6.4.3 Notes on connecting to the MR sensor bus ........................................................................................................73
6.4.4 Information about connecting analog sensors ....................................................................................................78
6.4.5 Electromagnetic compatibility..............................................................................................................................81
6.4.6 Connecting cables to the system periphery ........................................................................................................84
6.4.7 Wiring the device.................................................................................................................................................84
6.4.8 Mounting terminating resistor of CAN bus ..........................................................................................................86
6.5 Connecting the motor-drive unit........................................................................................................ 86
6.5.1 Cable recommendation .......................................................................................................................................87
6.5.2 Electrical connection ...........................................................................................................................................88
7 Commissioning................................................................................................................. 89
7.1 Starting up motor-drive unit .............................................................................................................. 89
7.2 Tests on motor-drive unit.................................................................................................................. 90
7.2.1 Checking correct electric switch-off.....................................................................................................................90
7.2.2 Checking mechanical and electric end stop of on-load tap-changer/de-energized tap-changer and motor-drive
unit ......................................................................................................................................................................91

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7.2.3 Checking tripping of motor protective switch.......................................................................................................91
7.2.4 Checking functional reliability..............................................................................................................................92
7.3 Tests on the transformer................................................................................................................... 92
7.3.1 High-voltage tests on the transformer .................................................................................................................92
7.3.2 Dielectric tests on transformer wiring ..................................................................................................................93
7.4 Transporting transformer to the operating site.................................................................................. 93
7.5 Commissioning the transformer at the operating site ....................................................................... 93
7.6 Visualization...................................................................................................................................... 94
7.6.1 Establishing connection to visualization..............................................................................................................94
7.6.2 Setting the language ...........................................................................................................................................97
7.6.3 Setting date and time ..........................................................................................................................................98
7.6.4 Commissioning wizard ........................................................................................................................................98
7.6.5 Checking measured values and status of digital inputs and outputs ..................................................................99
7.6.6 Checking the temperature measurement............................................................................................................99
8 Operation......................................................................................................................... 101
8.1 Operating the motor-drive unit remotely ......................................................................................... 101
8.2 Operating motor-drive unit locally................................................................................................... 101
8.3 Operating the motor-drive unit with the hand crank........................................................................ 102
9 Visualization.................................................................................................................... 104
9.1 Establishing connection to visualization ......................................................................................... 104
9.2 General........................................................................................................................................... 107
9.2.1 Setting general device functions .......................................................................................................................108
9.2.2 Set up automatic logout ....................................................................................................................................109
9.2.3 Activating/deactivating service user access......................................................................................................110
9.3 Configuring the network.................................................................................................................. 111
9.4 MQTT.............................................................................................................................................. 114
9.5 Setting the device time ................................................................................................................... 116
9.5.1 Time synchronization via PTP...........................................................................................................................117
9.6 Configuring syslog .......................................................................................................................... 118
9.7 Setting the screensaver.................................................................................................................. 120
9.8 SCADA ........................................................................................................................................... 121
9.8.1 Configuring IEC 61850 (optional)......................................................................................................................122
9.8.2 Configuring IEC 60870-5-101 (optional) ...........................................................................................................124
9.8.3 Configuring IEC 60870-5-103 (optional) ...........................................................................................................127
9.8.4 Configuring IEC 60870-5-104 (optional) ...........................................................................................................129

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9.8.5 Configuring Modbus (optional) ..........................................................................................................................131
9.8.6 Configuring DNP3 (optional) .............................................................................................................................133
9.8.7 Configuring GOOSE (optional)..........................................................................................................................135
9.8.8 Configure data points (optional) ........................................................................................................................140
9.8.9 Display status of the SCADA connection ..........................................................................................................147
9.9 Name plate ..................................................................................................................................... 148
9.9.1 Enter the name plate data.................................................................................................................................148
9.9.2 Displaying the name plate.................................................................................................................................149
9.10 Linking signals and events.............................................................................................................. 149
9.10.1 Linking functions ...............................................................................................................................................150
9.10.2 Linking digital outputs........................................................................................................................................151
9.10.3 Linking control system messages .....................................................................................................................151
9.11 Cooling system control (optional) ................................................................................................... 152
9.11.1 Configuring cooling stages................................................................................................................................153
9.11.2 Set the operating mode.....................................................................................................................................155
9.11.3 Deactivating cooling system control..................................................................................................................155
9.11.4 Configuring load-dependent mode....................................................................................................................155
9.11.5 Configuring periodic mode ................................................................................................................................157
9.11.6 Configuring alternating mode ............................................................................................................................158
9.11.7 Configuring the frequency-based cooling system control .................................................................................159
9.11.8 Displaying status of cooling stages ...................................................................................................................162
9.12 Cooling system monitoring (optional) ............................................................................................. 163
9.12.1 Setting the cooling system monitoring function.................................................................................................163
9.12.2 Cooling efficiency monitoring (optional) ............................................................................................................164
9.12.3 Cooling system flow monitoring (optional) ........................................................................................................165
9.13 Control of the motor-drive unit (optional) ........................................................................................ 169
9.13.1 Setting the switching pulse for controlling the motor-drive unit .........................................................................170
9.13.2 Setting motor runtime monitoring ......................................................................................................................171
9.13.3 Setting the switching direction...........................................................................................................................172
9.14 Drive overview ................................................................................................................................ 173
9.15 Regulation....................................................................................................................................... 174
9.15.1 Response to control system disconnection (optional).......................................................................................174
9.15.2 Setting control variable (optional)......................................................................................................................176
9.16 Voltage regulation (optional)........................................................................................................... 177
9.16.1 Setting the desired value...................................................................................................................................177
9.17 Reactive power regulation (optional) .............................................................................................. 193

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9.18 Transformer data ............................................................................................................................ 196
9.18.1 Setting transformer data....................................................................................................................................197
9.18.2 Circuit examples for voltage transformers and current transformers ................................................................199
9.19 Measurement.................................................................................................................................. 212
9.19.1 UI measuring channels .....................................................................................................................................212
9.19.2 Control variable .................................................................................................................................................213
9.19.3 Regulation mode ...............................................................................................................................................213
9.19.4 Display power factor negative ...........................................................................................................................213
9.20 Line drop compensation ................................................................................................................. 214
9.20.1 R&X compensation ...........................................................................................................................................214
9.20.2 Z compensation.................................................................................................................................................215
9.21 Parallel operation (optional)............................................................................................................ 216
9.21.1 Parallel operation methods ...............................................................................................................................217
9.21.2 Configuring parallel operation ...........................................................................................................................221
9.21.3 TAPCON® 2xx retrofit.......................................................................................................................................225
9.21.4 Detecting parallel operation via group inputs (optional) ....................................................................................226
9.22 Monitoring functions........................................................................................................................ 226
9.22.1 Voltage monitoring ............................................................................................................................................226
9.22.2 Current monitoring ............................................................................................................................................229
9.22.3 Power monitoring ..............................................................................................................................................232
9.22.4 Power flow monitoring.......................................................................................................................................234
9.22.5 Tap position monitoring (optional).....................................................................................................................236
9.22.6 U bandwidth monitoring ....................................................................................................................................237
9.22.7 Q bandwidth monitoring (optional) ....................................................................................................................239
9.22.8 Phase symmetry monitoring..............................................................................................................................241
9.22.9 Temperature monitoring....................................................................................................................................242
9.22.10 Switching interval monitoring ............................................................................................................................242
9.22.11 Monitoring the gas volume of the Buchholz relay (OLTC) ................................................................................244
9.22.12 Monitoring the gas volume of the Buchholz relay (transformer)........................................................................245
9.22.13 Monitoring the oil pressure (transformer) ..........................................................................................................245
9.22.14 Monitoring the oil pressure (on-load tap-changer) ............................................................................................246
9.23 Target-tap-position operation.......................................................................................................... 247
9.24 Measured values ............................................................................................................................ 247
9.24.1 Displaying current measured values .................................................................................................................247
9.24.2 Displaying measured value recorder (optional).................................................................................................248
9.24.3 Setting the measured value recorder ................................................................................................................252

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9.24.4 Displaying temperature curve (optional) ...........................................................................................................253
9.24.5 Displaying winding temperatures (optional) ......................................................................................................254
9.24.6 Displaying the measured values of the Buchholz relay (optional).....................................................................255
9.24.7 Displaying the measured values of the pressure relief device (optional) ..........................................................255
9.24.8 Displaying the measured value trend of the oil level and dehydrating breather (optional)................................256
9.25 On-load tap-changer monitoring..................................................................................................... 256
9.25.1 Changing tap position designation (optional) ....................................................................................................256
9.25.2 Setting the TCR calculation factor (optional).....................................................................................................257
9.25.3 Displaying tap-change operation statistics (optional)........................................................................................257
9.25.4 Motor Current Index (MCI) ................................................................................................................................258
9.25.5 Displaying information about contact wear (only OILTAP®).............................................................................262
9.25.6 Information about the on-load tap-changer .......................................................................................................263
9.26 Transformer monitoring (optional) .................................................................................................. 263
9.26.1 Hot-spot calculation (optional)...........................................................................................................................264
9.26.2 Hot-spot forecast (optional)...............................................................................................................................267
9.26.3 Setting calculation of transformer's loss of life (optional) ..................................................................................268
9.26.4 Displaying protective device status (optional) ...................................................................................................269
9.26.5 Asset intelligence ..............................................................................................................................................269
9.26.6 Transformer statistics........................................................................................................................................270
9.26.7 Display current oil level/dehydrating breather values........................................................................................271
9.26.8 Displaying the measured value trend of the oil level and dehydrating breather (optional)................................273
9.27 Dissolved gas analysis (optional) ................................................................................................... 273
9.27.1 Configuring DGA monitoring .............................................................................................................................274
9.27.2 Displaying measured values .............................................................................................................................277
9.28 MR sensor bus................................................................................................................................ 282
9.28.1 Configuring MR sensor bus...............................................................................................................................283
9.28.2 Managing sensors.............................................................................................................................................284
9.28.3 Function assignment .........................................................................................................................................286
9.28.4 Defining the sensors .........................................................................................................................................286
9.28.5 Displaying information on the connected sensors.............................................................................................291
9.29 Configuring analog inputs and outputs (optional) ........................................................................... 292
9.30 Configuring digital inputs and outputs............................................................................................. 295
9.31 Maintenance (optional) ................................................................................................................... 297
9.31.1 Setting operator interval for OLTC maintenance...............................................................................................298
9.31.2 Setting operator interval for transformer maintenance......................................................................................299
9.31.3 Undertaking and confirming maintenance.........................................................................................................300

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9.31.4 Displaying maintenance overview.....................................................................................................................303
9.31.5 Displaying the maintenance logbook ................................................................................................................303
9.31.6 Suppressing a maintenance event....................................................................................................................305
9.32 Torque monitoring (optional)........................................................................................................... 306
9.32.1 Tap-change ranges (windows) M1...M8............................................................................................................306
9.32.2 Types of tap-change operations........................................................................................................................306
9.32.3 Limit values .......................................................................................................................................................307
9.32.4 Tap-change supervisory control........................................................................................................................308
9.32.5 Evaluated and unevaluated tap-change operations..........................................................................................308
9.32.6 Displaying torque monitoring.............................................................................................................................309
9.33 Event management......................................................................................................................... 311
9.33.1 Displaying and acknowledging events ..............................................................................................................311
9.33.2 Configuring events ............................................................................................................................................312
9.33.3 Displaying event memory..................................................................................................................................314
9.34 User administration......................................................................................................................... 315
9.34.1 User roles..........................................................................................................................................................315
9.34.2 Changing the password ....................................................................................................................................317
9.34.3 Creating, editing and deleting users..................................................................................................................318
9.34.4 Setting access rights to parameters and events ...............................................................................................319
9.34.5 User authentication via RADIUS (optional) .......................................................................................................320
9.35 Information about device ................................................................................................................ 322
9.35.1 Hardware...........................................................................................................................................................322
9.35.2 Software ............................................................................................................................................................323
9.35.3 Parallel operation ..............................................................................................................................................324
9.36 Import/export manager ................................................................................................................... 324
9.36.1 Exporting data ...................................................................................................................................................325
9.36.2 Importing data (software version 3.44 and later)...............................................................................................326
9.37 Configuring media converter with managed switch ........................................................................ 327
9.37.1 Commissioning..................................................................................................................................................327
9.37.2 Configuration.....................................................................................................................................................329
9.38 TAPCON® Personal Logic Editor (TPLE)....................................................................................... 330
9.38.1 Function ............................................................................................................................................................330
9.38.2 Configuring TPLE..............................................................................................................................................343
9.39 Calibrating the position sensor ....................................................................................................... 346
9.40 Performing trial tap-change operations........................................................................................... 347

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10 Fault elimination ............................................................................................................. 349
10.1 Safety instructions .......................................................................................................................... 349
10.2 General information ........................................................................................................................ 349
10.3 Fault in the environment of the motor-drive unit ............................................................................. 350
10.4 Fault in the motor-drive unit when the switching operation has not ended..................................... 350
10.5 Fault in the motor-drive unit after the switching operation is ended correctly................................. 351
10.6 Hand crank operation in the event of faults .................................................................................... 351
10.7 Fault elimination ISM (hardware and software) .............................................................................. 352
10.7.1 General faults....................................................................................................................................................352
10.7.2 Human-machine interface .................................................................................................................................353
10.7.3 Torque monitoring .............................................................................................................................................353
10.7.4 Temperature monitoring....................................................................................................................................356
10.7.5 Maintenance messages ....................................................................................................................................360
10.7.6 Function monitoring...........................................................................................................................................364
10.7.7 Other faults........................................................................................................................................................365
11 Inspection and maintenance ......................................................................................... 367
11.1 Care................................................................................................................................................ 367
11.2 Inspection ....................................................................................................................................... 367
11.3 Maintenance ................................................................................................................................... 367
12 Removal........................................................................................................................... 369
13 Disposal........................................................................................................................... 372
14 Technical data................................................................................................................. 373
14.1 Motor-drive unit............................................................................................................................... 373
14.2 Control cabinet................................................................................................................................ 373
14.2.1 Drawings ...........................................................................................................................................................375
14.3 Technical data for position transmitter equipment.......................................................................... 380
14.4 Permissible ambient conditions ...................................................................................................... 380
14.5 ISM® assemblies............................................................................................................................ 381
14.5.1 Voltage supply...................................................................................................................................................381
14.5.2 Voltage supply...................................................................................................................................................381
14.5.3 Voltage measurement and current measurement.............................................................................................383
14.5.4 UI 5-4 voltage measurement and current measurement...................................................................................384
14.5.5 Digital inputs and outputs..................................................................................................................................386
14.5.6 Analog inputs and outputs.................................................................................................................................388

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14.5.7 AIO8 analog inputs and outputs.......................................................................................................................389
14.5.8 CPU (central processing unit) I .........................................................................................................................390
14.5.9 System networking............................................................................................................................................392
14.5.10 Ambient conditions............................................................................................................................................394
14.5.11 Standards and directives...................................................................................................................................394
Glossary .......................................................................................................................... 397
List of key words ............................................................................................................ 399

1 Introduction
Maschinenfabrik Reinhausen GmbH 202012 6385142/08 ENETOS® ED
1 Introduction
This technical file contains detailed descriptions on the safe and proper in-
stallation, connection, commissioning and monitoring of the product.
It also includes safety instructions and general information about the prod-
uct.
This technical file is intended solely for specially trained and authorized per-
sonnel.
1.1 Manufacturer
The product is manufactured by:
Maschinenfabrik Reinhausen GmbH
Falkensteinstraße 8
93059 Regensburg
Tel.: [phone]
E-mail: [email protected]
Further information on the product and copies of this technical file are avail-
able from this address if required.
1.2 Completeness
This technical file is incomplete without the supporting documents.
The following documents also apply in addition to this technical file:
▪ Connection diagrams
▪ Routine test report
▪ Supplement
Also observe generally valid legislation, standards, and guidelines as well as
specifications on accident prevention and environmental protection in the re-
spective country of use.
1.3 Safekeeping
Keep this technical file and all supporting documents ready at hand and ac-
cessible for future use at all times.
1.4 Notation conventions
1.4.1 Hazard communication system
Warnings in this technical file are displayed as follows.

1 Introduction
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1.4.1.1 Warning relating to section
Warnings relating to sections refer to entire chapters or sections, sub-sec-
tions or several paragraphs within this technical file. Warnings relating to
sections use the following format:
WARNING Type of danger!
Source of the danger and outcome.
► Action
► Action
1.4.1.2 Embedded warning information
Embedded warnings refer to a particular part within a section. These warn-
ings apply to smaller units of information than the warnings relating to sec-
tions. Embedded warnings use the following format:
DANGER! Instruction for avoiding a dangerous situation.
1.4.1.3 Signal words and pictograms
The following signal words are used:
Signal word Definition
DANGER Indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING Indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION Indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE Indicates measures to be taken to prevent damage to property.
Table1: Signal words in warning notices
Pictograms warn of dangers:
Pictogram Definition
Warning of a danger point
Warning of dangerous electrical voltage

1 Introduction
Maschinenfabrik Reinhausen GmbH 202014 6385142/08 ENETOS® ED
Pictogram Definition
Warning of combustible substances
Warning of danger of tipping
Warning of danger of crushing
Table2: Pictograms used in warning notices
1.4.2 Information system
Information is designed to simplify and improve understanding of particular
procedures. In this technical file it is laid out as follows:
Important information.
1.4.3 Instruction system
This technical file contains single-step and multi-step instructions.
Single-step instructions
Instructions which consist of only a single process step are structured as fol-
lows:
Aim of action
üRequirements (optional).
► Step 1 of 1.
ðResult of step (optional).
ðResult of action (optional).
Multi-step instructions
Instructions which consist of several process steps are structured as follows:

1 Introduction
Maschinenfabrik Reinhausen GmbH 2020 156385142/08 EN ETOS® ED
Aim of action
üRequirements (optional).
1. Step 1.
ðResult of step (optional).
2. Step 2.
ðResult of step (optional).
ðResult of action (optional).
1.4.4 Typographic conventions
Typographic convention Purpose Example
UPPERCASE Operating controls, switches ON/OFF
[Brackets] PC keyboard [Ctrl] + [Alt]
Bold Software operating controls Press Continue button
…>…>… Menu paths Parameter > Control parameter
Italics System messages, error messages,
signals
Function monitoring alarm triggered
[► Number of pages] Cross reference [► Page 41].
Dotted underscore
.............................................
Glossary entry, abbreviations, defini-
tions, etc.
Glossary entry
........................
Table3: Typographic conventions used in this technical file

2 Safety
Maschinenfabrik Reinhausen GmbH 202016 6385142/08 ENETOS® ED
2 Safety
▪ Read this technical file through to familiarize yourself with the product.
▪ This technical file is a part of the product.
▪ Read and observe the safety instructions provided in this chapter.
▪ Read and observe the warnings in this technical file in order to avoid func-
tion-related dangers.
▪ The product is manufactured on the basis of state-of-the-art technology.
Nevertheless, risks to life and limb for the user or impairment of the prod-
uct and other material assets due to the function may arise in the event of
improper use.
2.1 Appropriate use
The motor-drive unit adjusts the operating position of on-load tap-changers
in regulating transformers to the individual operating requirements. The mo-
tor-drive unit is designed solely for use in electrical energy systems and facil-
ities. If used as intended and in compliance with the requirements and condi-
tions specified in this technical file as well as the warning notices in this tech-
nical file and attached to the product, then the motor-drive unit does not
present any danger to people, property or the environment. This applies
throughout the service life of the product, from delivery, installation and oper-
ation to removal and disposal.
The following is considered appropriate use:
▪ Only operate the product in accordance with this technical file and the
agreed delivery conditions and technical data.
▪ Use the equipment and special tools supplied solely for the intended pur-
pose and in accordance with the specifications of this technical file.
▪ Use the product only with the transformer/on-load tap-changer/de-ener-
gized tap-changer specified in the order.
▪ You will find the standard valid for the product and the year of issue on the
nameplate.
▪ The serial numbers of on-load tap-changer / de-energized tap-changer
and on-load tap-changer accessories / de-energized tap-changer acces-
sories (drive, drive shaft, bevel gear, protective relay, etc.) must match if
these products are supplied as a set for one order.
▪ Electrically operate the motor-drive unit remotely during normal operation.
▪ In special operating cases (such as during maintenance tasks), the motor-
drive unit can also be operated electrically on site via control switch S3.
▪ Never operate the motor-drive unit electrically or with the hand crank be-
fore the transformer has been disconnected if you think there may be a
fault in the transformer or on-load tap-changer/de-energized tap-changer.
For more information, refer to the "Troubleshooting" chapter.

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▪ The provided hand crank is for activating the motor-drive unit during in-
stallation and tests in the transformer plant or during maintenance tasks if
the transformer has been disconnected.
▪ For details about using the hand crank in emergency operation when the
transformer is energized, refer to the "Operation" [►Section 8, Page 101]
chapter.
2.2 Fundamental safety instructions
To prevent accidents, malfunctions and damage as well as unacceptable ad-
verse effects on the environment, those responsible for transport, installa-
tion, operation, maintenance and disposal of the product or parts of the prod-
uct must ensure the following:
Personal protective equipment
Loosely worn or unsuitable clothing increases the danger of becoming
trapped or caught up in rotating parts and the danger of getting caught on
protruding parts. This poses a danger to life and limb.
▪ Wear appropriate personal protective equipment such as a helmet, work
gloves, etc. for the respective activity.
▪ Never wear damaged personal protective equipment.
▪ Never wear rings, necklaces, or other jewelry.
▪ If you have long hair, wear a hairnet.
Work area
Untidy and poorly lit work areas can lead to accidents.
▪ Keep the work area clean and tidy.
▪ Make sure that the work area is well lit.
▪ Observe the applicable laws for accident prevention in the relevant coun-
try.
Drying the transformer
Drying the motor-drive unit will cause damage to property as well as motor-
drive unit malfunctions.
▪ Never dry the motor-drive unit.
Working during operation
The product may only be operated in a sound, operational condition. Other-
wise it poses a danger to life and limb.
▪ Regularly check the operational reliability of safety equipment.
▪ Comply with the inspection work, maintenance work and maintenance in-
tervals described in this technical file.

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Invisible laser radiation
Looking directly into the beam or the reflected beam can cause eye damage.
The beam is emitted at the optical connections or at the end of the fiber-optic
cables connected to them on the assemblies. Read the chapter "Technical
Data" for further information.
▪ Never look directly into the beam or the reflected beam.
▪ Never look into the beam with the aid of optical instruments such as a
magnifying glass or a microscope.
▪ In the event that the laser beam strikes your eyes, close your eyes imme-
diately and move your head out of the path of the beam.
Working with current transformers
Dangerous high voltages may occur when a current transformer is operated
with an open secondary circuit. This can lead to injuries and property dam-
age.
▪ Never operate a current transformer with an open secondary circuit; short-
circuit the current transformer to prevent this.
▪ Observe the information in the current transformer operating instructions.
Handling electrical components
Electrical components can be damaged by electrostatic discharges.
▪ Never touch electrical components during commissioning, operation or
maintenance work.
▪ Take suitable measures (e.g. covers) to ensure that personnel cannot
touch components.
▪ Wear suitable personal protective equipment (e.g. grounded strap).
Hand crank aperture
Reaching into the hand crank aperture during a tap-change operation may
lead to injuries caused by a rotating drive shaft.
▪ Never reach into the hand crank aperture.
Securing the motor-drive unit
If you open the motor-drive unit during operation, there is a danger of electric
shock due to live components behind the swing frame.
▪ Secure the motor-drive unit against unauthorized opening during opera-
tion by using a padlock.
▪ The motor-drive unit may only be opened by an electrically skilled person.
Opening the swing frame
Opening the swing frame while the motor-drive unit is in operation may result
in electric shocks due to live components.
▪ The swing frame may only be opened by an electrically skilled person.

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Explosion protection
Highly flammable or explosive gases, vapors and dusts can cause serious
explosions and fire. This increases the danger to life and limb.
▪ Do not install, operate or perform maintenance work on the product in ar-
eas where a risk of explosion is present.
Safety markings
Warning signs and safety information plates are safety markings on the
product. They are an important aspect of the safety concept.
▪ Observe all safety markings on the product.
▪ Make sure all safety markings on the product remain intact and legible.
▪ Replace safety markings that are damaged or missing.
Ambient conditions
To ensure reliable and safe operation, the product must only be operated
under the ambient conditions specified in the technical data.
▪ Observe the specified operating conditions and requirements for the in-
stallation location.
Auxiliary materials and operating materials
Auxiliary materials and operating materials not approved by the manufac-
turer can lead to personal injury, damage to property and malfunctions of the
product.
▪ Only use conductive and grounded hoses, pipes, and pump equipment
that are approved for flammable liquids.
▪ Only use lubricants and auxiliary materials approved by the manufacturer.
▪ Contact the manufacturer.
Modifications and conversions
Unauthorized or inappropriate changes to the product may lead to personal
injury, material damage and operational faults.
▪ Only modify the product after consultation with Maschinenfabrik Rein-
hausen GmbH.
Spare parts
Spare parts not approved by Maschinenfabrik Reinhausen GmbH may lead
to physical injury, damage to the product and malfunctions.
▪ Only use spare parts that have been approved by Maschinenfabrik Rein-
hausen GmbH.
▪ Contact Maschinenfabrik Reinhausen GmbH.

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2.3 Personnel qualification
The person responsible for assembly, commissioning, operation, mainte-
nance and inspection must ensure that the personnel are sufficiently quali-
fied.
Electrically skilled person
The electrically skilled person has a technical qualification and therefore has
the required knowledge and experience, and is also conversant with the ap-
plicable standards and regulations. The electrically skilled person is also pro-
ficient in the following:
▪ Can identify potential dangers independently and is able to avoid them.
▪ Is able to perform work on electrical systems.
▪ Is specially trained for the working environment in which (s)he works.
▪ Must satisfy the requirements of the applicable statutory regulations for
accident prevention.
Electrically trained persons
An electrically trained person receives instruction and guidance from an
electrically skilled person in relation to the tasks undertaken and the poten-
tial dangers in the event of inappropriate handling as well as the protective
devices and safety measures. The electrically trained person works exclu-
sively under the guidance and supervision of an electrically skilled person.
Operator
The operator uses and operates the product in line with this technical file.
The operating company provides the operator with instruction and training
on the specific tasks and the associated potential dangers arising from im-
proper handling.
Technical Service
We strongly recommend having maintenance, repairs and retrofitting carried
out by our Technical Service department. This ensures that all work is per-
formed correctly. If maintenance is not carried out by our Technical Service
department, please ensure that the personnel who carry out the mainte-
nance are trained and authorized by Maschinenfabrik Reinhausen GmbH to
carry out the work.
Authorized personnel
Authorized personnel are trained by Maschinenfabrik Reinhausen GmbH to
carry out special maintenance.