MR ECOTAP VPD I User manual

On-Load Tap-Changer
ECOTAP® VPD®
Operating Instructions
6107891/02 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 2019 36107891/02 EN ECOTAP® VPD®
Table of contents
1 Introduction......................................................................................................................... 6
1.1 Manufacturer....................................................................................................................................... 6
1.2 Completeness..................................................................................................................................... 6
1.3 Safekeeping........................................................................................................................................ 6
1.4 Notation conventions .......................................................................................................................... 6
1.4.1 Hazard communication system .............................................................................................................................7
1.4.2 Information system................................................................................................................................................8
1.4.3 Instruction system .................................................................................................................................................8
1.4.4 Typographic conventions ......................................................................................................................................9
2 Safety................................................................................................................................. 10
2.1 Appropriate use ................................................................................................................................ 10
2.2 Inappropriate use.............................................................................................................................. 11
2.3 Fundamental Safety Instructions ...................................................................................................... 11
2.4 Personnel qualification...................................................................................................................... 13
2.5 Personal protective equipment ......................................................................................................... 14
3 Product description.......................................................................................................... 16
3.1 Scope of delivery .............................................................................................................................. 16
3.2 Function description.......................................................................................................................... 16
3.3 Variants............................................................................................................................................. 17
3.4 Setup/models.................................................................................................................................... 17
3.4.1 ECOTAP® VPD® III without change-over selector.............................................................................................18
3.4.2 ECOTAP® VPD® III with change-over selector..................................................................................................20
3.4.3 ECOTAP® VPD® I without change-over selector...............................................................................................21
4 Packaging, transport and storage .................................................................................. 24
4.1 Packaging ......................................................................................................................................... 24
4.1.1 Suitability.............................................................................................................................................................24
4.1.2 Markings..............................................................................................................................................................25
4.2 Transportation, receipt and handling of shipments........................................................................... 25
4.3 Storage of shipments........................................................................................................................ 26
4.4 Unpacking shipments and checking for transportation damages ..................................................... 27

Table of contents
Maschinenfabrik Reinhausen GmbH 201946107891/02 ENECOTAP® VPD®
5 Mounting ........................................................................................................................... 28
5.1 Fastening on-load tap-changer to transformer cover........................................................................ 28
5.1.1 Attaching the ECOTAP® VPD® III......................................................................................................................28
5.1.2 Attaching the ECOTAP® VPD® I........................................................................................................................32
5.2 Connecting tap winding and on-load tap-changer take-off lead ....................................................... 35
5.3 Mounting motor-drive unit and control unit ....................................................................................... 39
5.4 Taking measurements ...................................................................................................................... 44
5.5 Drying the on-load tap-changer ........................................................................................................ 46
5.6 Filling transformer with oil ................................................................................................................. 48
6 Commissioning................................................................................................................. 49
6.1 Commissioning the on-load tap-changer at the transformer manufacturer's site ............................. 49
6.1.1 Tests on the transformer .....................................................................................................................................50
6.1.2 Resetting automatic adjustment..........................................................................................................................52
6.2 Transporting transformer to the operating site.................................................................................. 53
6.3 Commissioning transformer at operating site ................................................................................... 54
6.3.1 Switching on the low-voltage busbar...................................................................................................................54
7 Operation........................................................................................................................... 56
7.1 Monitoring on-load tap-changer........................................................................................................ 56
7.2 Operating motor-drive unit and control unit ...................................................................................... 57
8 Fault elimination ............................................................................................................... 58
9 Maintenance...................................................................................................................... 59
9.1 Inspection ......................................................................................................................................... 59
9.1.1 Visual check ........................................................................................................................................................59
9.1.2 Read out software version (F6)...........................................................................................................................60
9.1.3 Reading remaining life (F2).................................................................................................................................60
9.1.4 LED function test (F3) .........................................................................................................................................61
9.1.5 Checking the temperature blocking.....................................................................................................................62
9.1.6 Oil quality ............................................................................................................................................................62
9.2 Maintenance ..................................................................................................................................... 62
9.3 Care .................................................................................................................................................. 62
10 Disposal............................................................................................................................. 63

Table of contents
Maschinenfabrik Reinhausen GmbH 2019 56107891/02 EN ECOTAP® VPD®
11 Technical data................................................................................................................... 64
11.1 On-load tap-changer type designation.............................................................................................. 64
11.1.1 ECOTAP®VPD on-load tap-changer designation..............................................................................................64
11.1.2 Number of positions and basic connection .........................................................................................................64
11.2 Technical data for the on-load tap-changer ...................................................................................... 65
11.3 Step capacity diagrams .................................................................................................................... 67
11.4 Permitted voltage stresses ............................................................................................................... 69
11.5 Tapped winding potential connection ............................................................................................... 74
11.6 Limit values for dielectric strength and water content of on-load tap-changer oil ............................. 75
12 Drawings ........................................................................................................................... 76
12.1 Information on the drawings in the appendix .................................................................................... 76
12.2 Dimensional drawings....................................................................................................................... 76
12.2.1 SED_5872027.....................................................................................................................................................77
12.2.2 SED_5957148.....................................................................................................................................................80
12.2.3 SED_6330650.....................................................................................................................................................83
12.2.4 SED_6344630.....................................................................................................................................................86
12.3 High-voltage connection diagrams ................................................................................................... 89
12.3.1 SBI_5662910 ......................................................................................................................................................90
12.3.2 SBI_5798490 ......................................................................................................................................................91
12.3.3 SBI_5662912 ......................................................................................................................................................92
12.3.4 SBI_5662914 ......................................................................................................................................................93
12.3.5 SBI-6620632 .......................................................................................................................................................94
12.3.6 SBI_6620634 ......................................................................................................................................................95

1 Introduction
Maschinenfabrik Reinhausen GmbH 201966107891/02 ENECOTAP® VPD®
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, Germany
Tel.: [phone]
Fax: [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 are considered supporting documents:
▪ Operating instructions for the associated ECOTAP® VPD® MD&C motor-
drive unit with control unit.
▪ Connection diagrams
▪ Routine test report
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
This section contains an overview of the symbols and textual emphasis
used.

1 Introduction
Maschinenfabrik Reinhausen GmbH 2019 76107891/02 EN ECOTAP® VPD®
1.4.1 Hazard communication system
Warnings in this technical file are displayed as follows.
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

1 Introduction
Maschinenfabrik Reinhausen GmbH 201986107891/02 ENECOTAP® VPD®
Pictograms warn of dangers:
Pictogram Definition
Warning of a danger point
Warning of dangerous electrical voltage
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:

1 Introduction
Maschinenfabrik Reinhausen GmbH 2019 96107891/02 EN ECOTAP® VPD®
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:
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
The following typographic conventions are used in this technical file:
Typographic con-
vention
Purpose Example
UPPERCASE Operating controls, keys AVR MANUAL
Bold Displays/menus P21
Italics System messages/LED dis-
plays
ERROR LED
[► Page number]. Cross reference [► 41].
Table3: Typographic conventions

2 Safety
Maschinenfabrik Reinhausen GmbH 201910 6107891/02 ENECOTAP® VPD®
2 Safety
This technical file contains detailed descriptions on the safe and proper in-
stallation, connection, commissioning and monitoring of the product.
▪ Read this technical file through carefully 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 in partic-
ular.
▪ Observe the warnings in this technical file in order to avoid function-re-
lated 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 may arise in the event of improper use.
2.1 Appropriate use
The product is an on-load tap-changer and adjusts the transmission ratio of
transformers without interrupting the load flow. The product is designed
solely for use in electrical energy systems and facilities. If used as intended
and in compliance with the requirements and conditions specified in this
technical file as well as the warning notices in this technical file and attached
to the product, then the product does not present any danger to people,
property or the environment. This applies throughout service life of the prod-
uct, from delivery to installation and operation through to disassembly and
disposal.
The following is considered appropriate use:
▪ Only use the ECOTAP®VPD® on-load tap-changer in systems set up in
accordance with IEC61936-1.
▪ You will find the standard valid for the product and the year of issue on the
nameplate.
▪ Only operate the product in accordance with this technical file and the
agreed delivery conditions and technical data.
▪ Only operate standard design on-load tap-changers in entirely oil-filled
transformers. Use in transformers with a gas cushion below the trans-
former cover is only permitted with an appropriate special design. In such
cases, ensure that the minimum oil fill level stated on the dimensional
drawing supplied is observed.
▪ Operation with alternative insulating fluids is possible in accordance with
the specification in the Technical data [►Section 11, Page 64]. In such
cases, you must ensure compliance with the limited temperature ranges
by means of temperature blocking.
▪ Only operate the ECOTAP®VPD® on-load tap-changer and
ECOTAP®VPD®MD&C motor-drive unit in this combination. Operation
with another on-load tap-changer or motor-drive unit is not permitted.

2 Safety
Maschinenfabrik Reinhausen GmbH 2019 116107891/02 EN ECOTAP® VPD®
▪ Ensure that all necessary work is performed by qualified personnel only.
▪ Use the equipment and special tools supplied solely for the intended pur-
pose and in accordance with the specifications of this technical file.
Permitted electrical operating conditions
In addition to the design data in accordance with the order confirmation, ob-
serve the following limits for the through-current and the step voltage:
In the standard version, the on-load tap-changer is designed for sinusoidal
50/60 Hz AC current with a curve form symmetrical to the zero axis and can
switch twice the rated through-current Ir at its rated step voltage Uir.
Exceeding the rated step voltage Uir for a short period by up to 10% is per-
mitted if the rated through-current Ir is not exceeded.
2.2 Inappropriate use
Use is considered inappropriate if the product is used in a way other than as
described in the "Appropriate use" section. In addition, observe the following:
Prohibited electrical operating conditions
All operating conditions that do not comply with the design data in accor-
dance with the order confirmation are prohibited.
Prohibited operating conditions may arise due to short circuits as well as due
to inrush current impulses when energizing transformers or other electrical
machines. This applies to the affected transformer itself just as it does to
transformers electrically connected in parallel or serially or other electrical
machines.
Higher voltages may occur due to transformer overexcitation following load
shedding, for example.
Operations outside of the permitted operating conditions can lead to injury to
persons and damage to the product.
▪ Prevent any such operations outside of the permitted operating conditions
by taking suitable measures.
2.3 Fundamental Safety Instructions
To prevent accidents, disruptions 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:

2 Safety
Maschinenfabrik Reinhausen GmbH 201912 6107891/02 ENECOTAP® VPD®
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 increases the danger to life and limb.
▪ All necessary devices and personal protective equipment required for the
specific task, such as a hard hat, safety footwear, etc. must be worn. Ob-
serve the section "Personal protective equipment" [►Section 2.5, Page
14].
▪ 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.
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.
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.
Explosion protection
Highly flammable or explosive gases, vapors and dusts can cause serious
explosions and fire.
▪ Do not install or operate the product in areas where a risk of explosion is
present.

2 Safety
Maschinenfabrik Reinhausen GmbH 2019 136107891/02 EN ECOTAP® VPD®
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.
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 the manufacturer.
Spare parts
Spare parts not approved by the manufacturer may lead to physical injury,
damage to the product and operational faults.
▪ Only use spare parts approved by the manufacturer.
▪ Contact the manufacturer.
2.4 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.

2 Safety
Maschinenfabrik Reinhausen GmbH 201914 6107891/02 ENECOTAP® VPD®
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.
2.5 Personal protective equipment
Personal protective equipment must be worn during work to minimize risks to
health.
▪ Always wear the personal protective equipment required for the job at
hand.
▪ Never wear damaged personal protective equipment.
▪ Observe information about personal protective equipment provided in the
work area.

2 Safety
Maschinenfabrik Reinhausen GmbH 2019 156107891/02 EN ECOTAP® VPD®
Personal protective equipment to be worn at all times
Protective clothing
Close-fitting work clothing with a low tearing
strength, with tight sleeves and with no protrud-
ing parts. It mainly serves to protect the wearer
against being caught by moving machine parts.
Safety shoes
To protect against falling heavy objects and slip-
ping on slippery surfaces.
Special personal protective equipment for particular environments
Safety glasses
To protect the eyes from flying parts and splash-
ing liquids.
Visor
To protect the face from flying parts and splash-
ing liquids or other dangerous substances.
Hard hat
To protect from falling and flying parts and mate-
rials.
Hearing protection
To protect from hearing damage.
Protective gloves
To protect from mechanical, thermal, and electri-
cal hazards.

3 Product description
Maschinenfabrik Reinhausen GmbH 201916 6107891/02 ENECOTAP® VPD®
3 Product description
This chapter contains an overview of the design and function of the product.
3.1 Scope of delivery
The product is packaged with protection against moisture and is delivered as
follows:
▪ On-load tap-changer
▪ Gasket
▪ Fixing screws with locking washers
▪ Nameplate (label)
▪ Technical files
Attach the on-load tap-changer nameplate to the corresponding motor-drive
unit. The position can be found in the section "Design/versions" [►Section
3.4, Page 17].
The crimp sleeves that may be needed for the connection are not included
in the scope of delivery.
Note the following information:
▪ Check the shipment for completeness on the basis of the shipping docu-
ments.
▪ Store the parts in a dry place until installation
▪ The product must remain in its airtight, protective wrapping and may only
be removed immediately before installation
You will find more information in the "Packaging, transport, and stor-
age" [►Section 4, Page 24] chapter.
3.2 Function description
On-load tap-changers are used to adjust the desired tap of a tap winding un-
der load.
The on-load tap-changer is based on the high-speed resistor-type tap-
changer principle and uses vacuum cells to change the tap position under
load. In this process, the arc is extinguished while isolated in a vacuum cell,
preventing contaminants from entering the oil.

3 Product description
Maschinenfabrik Reinhausen GmbH 2019 176107891/02 EN ECOTAP® VPD®
3.3 Variants
The ECOTAP®VPD® is available as a 3-phase or 1-phase version.
Type ECOTAP®VPD®III ECOTAP®VPD®I
Maximum rated through-current
Irm
30A
100A
30A
100A
Highest voltage for equipment
Um
36kV
40.5kV
36kV
Optional change-over selector Yes No
Table4: ECOTAP® VPD® versions
In the 1-phase version, the connection contacts are arranged on the left or
right side, depending on the order. Figures illustrating this can be found in
the section "ECOTAP® VPD® I without change-over selector" [►Section
3.4.3, Page 21].
For the correct connection, observe the order-specific connection diagram
supplied.
More important information can be found in the "Technical data" [►Section
11, Page 64] chapter.
3.4 Setup/models
The design and designation of the most important on-load tap-changer com-
ponents are shown in the following illustrations. Further details can be found
in the dimensional drawings in the appendix.

3 Product description
Maschinenfabrik Reinhausen GmbH 201918 6107891/02 ENECOTAP® VPD®
3.4.1 ECOTAP® VPD® III without change-over selector
The on-load tap-changer without change-over selector has 9 operating posi-
tions.
Figure1: Front view of the ECOTAP® VPD® without change-over selector
1 Motor-drive unit 2 Nameplate
3 Sealing module 4 Connection contact
5 O-ring gasket

3 Product description
Maschinenfabrik Reinhausen GmbH 2019 196107891/02 EN ECOTAP® VPD®
Figure2: Rear view of the ECOTAP® VPD® without change-over selector
1 Diverter switch assembly with tran-
sition resistor and vacuum inter-
rupter
2 Selector assembly

3 Product description
Maschinenfabrik Reinhausen GmbH 201920 6107891/02 ENECOTAP® VPD®
3.4.2 ECOTAP® VPD® III with change-over selector
The on-load tap-changer with change-over selector has 17 operating posi-
tions.
Figure3: Front view of the ECOTAP® VPD® with change-over selector
1 Motor-drive unit 2 Nameplate
3 Sealing module 4 Connection contact
5 O-ring gasket