Raytech WR14-R User manual

Raytech GmbH, Oberebenestrasse 11, CH 5620 Bremgarten, Switzerland
INSTRUCTION MANUAL
ENGLISH

Contents
1 Sa ety Precautions.......................................................................................................................6
2 Unpacking.................................................................................................................................... 8
2.1 WR100...............................................................................................................................8
2.2 WR50................................................................................................................................. 9
2.3 WR14............................................................................................................................... 10
3 Introduction................................................................................................................................. 12
3.1 General............................................................................................................................. 12
3.2 Advantages & Features....................................................................................................13
3.3 System Details..................................................................................................................14
4 Quick Start Guide.......................................................................................................................16
4.1 Instrument Operation – Pro iles deactivated.....................................................................16
4.2 Instrument Operation – Use Pro iles.................................................................................17
4.3 Selection the proper current range...................................................................................19
4.4 Connection to Test Object.................................................................................................19
4.4.1 Single Phase Trans ormer, Vector Group 0.............................................................20
4.4.2 Three Phase Trans ormer, Δ - Δ Vector Group 0....................................................21
4.4.3 Three Phase Trans ormer Δ - Y...............................................................................22
4.4.4 Three Phase Trans ormer Δ - Y...............................................................................23
5 Operation Elements.................................................................................................................... 24
5.1 WR100............................................................................................................................. 24
5.1.1 Front Panel WR100R..............................................................................................24
5.1.2 Rear Panel WR100R..............................................................................................26
5.1.2.1 Mains Connections.......................................................................................28
5.1.3 Mains Connection Example or WR100R................................................................29
5.2 WR50R............................................................................................................................. 30
5.2.1 Front Panel WR50R................................................................................................30
5.2.2 Rear Panel WR50R................................................................................................32
5.3 WR14R............................................................................................................................. 34
5.3.1 Front Panel WR14R................................................................................................34
5.3.2 Rear Panel WR14R................................................................................................36
6 Operating Menu.......................................................................................................................... 38
6.1 Menu Structure without using Pro iles..............................................................................40
6.2 Menu Structure Use Pro iles.............................................................................................41
6.2.1 Introduction to Trans ormer Pro iles and Data Structure.........................................42
6.3 Main Menu........................................................................................................................ 44
6.3.1 Main Menu Screen..................................................................................................44
6.3.2 Start........................................................................................................................ 46
6.3.3 Store....................................................................................................................... 46
6.3.4 Stop........................................................................................................................46
6.3.5 Demag....................................................................................................................47
6.3.6 Setup......................................................................................................................48
6.3.7 General...................................................................................................................49
6.3.7.1 Mouse Cursor...............................................................................................49
6.3.7.2 Use Pro iles..................................................................................................49
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 2 o 139

6.3.7.3 Color.............................................................................................................50
6.3.7.4 Length Correction.........................................................................................51
6.3.7.5 License.........................................................................................................52
6.3.7.6 Firmware update...........................................................................................53
6.3.7.7 Language......................................................................................................53
6.3.7.8 Clock Settings...............................................................................................54
6.3.7.9 About.............................................................................................................55
6.3.7.10 USB Printer.................................................................................................55
6.3.7.11 Service Mode..............................................................................................56
6.3.8 Con ig.....................................................................................................................57
6.3.8.1 With Pro iles deactivated...............................................................................57
6.3.8.2 Using Pro iles................................................................................................58
6.3.9 Mode.......................................................................................................................60
6.3.9.1 Single............................................................................................................60
6.3.9.2 Continuous....................................................................................................60
6.3.9.3 Interval..........................................................................................................61
6.3.10 Range...................................................................................................................63
6.3.11 Temperature Correction.........................................................................................64
6.3.12 Results.................................................................................................................. 67
6.3.12.1 Details.........................................................................................................68
6.3.12.2 Diagram......................................................................................................69
6.3.12.3 Print / Export...............................................................................................70
6.3.12.4 Esc.............................................................................................................. 70
6.3.13 Pro ile...................................................................................................................71
6.3.13.1 Create a new Pro ile...................................................................................72
6.3.13.2 Load Trans ormer Pro ile rom Archive........................................................75
6.3.13.3 Working with Templates..............................................................................76
6.3.13.4 Diagram......................................................................................................78
7 Options....................................................................................................................................... 79
7.1 Temperature Measurement...............................................................................................79
7.2 Heat Run Test So tware....................................................................................................80
7.2.1 Introduction.............................................................................................................80
7.2.2 Measurement with interval mode or HRT...............................................................81
7.2.3 Analysing the HRT Results.....................................................................................83
7.2.3.1 Save the HRT approximation........................................................................86
7.2.3.2 Showing the graph in °C...............................................................................87
7.3 Battery Option WR14R.....................................................................................................89
7.4 Cable extension WR100...................................................................................................91
7.4.1 WRO112.................................................................................................................91
7.4.2 WRO113.................................................................................................................92
7.5 Cable extension WR50.....................................................................................................93
7.5.1 WRO102.................................................................................................................93
7.5.2 WRO103.................................................................................................................94
7.5.3 WRO402.................................................................................................................95
8 Technical Speci ications.............................................................................................................96
8.1 WR100............................................................................................................................. 96
8.2 WR50............................................................................................................................... 98
8.3 WR14............................................................................................................................. 100
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 3 o 139

9 Inter aces..................................................................................................................................102
9.1 Hardware........................................................................................................................ 102
9.1.1 RS 323.................................................................................................................. 102
9.1.2 USB...................................................................................................................... 103
9.1.3 Extern................................................................................................................... 104
9.1.3.1 Standard type..............................................................................................104
9.1.3.2 Example or connecting an external warning device...................................105
9.1.3.3 Extended Sa ety Circuit type.......................................................................105
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 4 o 139

Appendix
A Raytech T-Base Pro.................................................................................................................. 109
A.1 Description...................................................................................................................... 109
A.2 Application Example........................................................................................................110
A.3 Concept o T-Base Pro....................................................................................................112
A.4 Components o T-Base Pro.............................................................................................112
A.4.1 T-Base Pro – totally ree........................................................................................112
A.4.2 Create your Add-On with T-Base SDK...................................................................112
A.4.3 T-Base Pro Remote Option or Raytech Devices...................................................113
A.4.4 Proprietary Add-On - Sequence............................................................................113
A.4.5 Proprietary Add-On - Remote I/O to external So tware.........................................114
A.5 Graphical User Inter ace..................................................................................................115
A.6 USB Driver or T-Base Pro...............................................................................................116
B So tware Development Kit (SDK)..............................................................................................117
C Service Mode............................................................................................................................ 118
C.1 Calibrate Touchscreen.....................................................................................................118
C.2 Show Ground Warning....................................................................................................119
C.3 CSV Separator................................................................................................................120
C.4 Raytech USB Driver or T-Base.......................................................................................121
C.4.1 Active Sync or Toolbox.........................................................................................121
D Command Syntax..................................................................................................................... 122
D.1 Serial Inter ace................................................................................................................122
D.2 USB Inter ace.................................................................................................................. 123
E USB Printer In o........................................................................................................................ 124
F Measuring high- and low-voltage-side in series.........................................................................125
G Measuring with 2 WR-Meters at the same time........................................................................128
H Demagnetizing..........................................................................................................................130
I Multiplexer.................................................................................................................................. 132
J Warranty Conditions..................................................................................................................133
K Error Messages......................................................................................................................... 135
L Trouble Shooting....................................................................................................................... 137
M Contacts................................................................................................................................... 139
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 5 o 139

1 Safety recautions
The ollowing sa ety precautions must be observed during all phases o operation, service and
repair o this instrument. By purchasing this equipment the purchaser assumes all liability or the
operation and use o this equipment. The intended use o the instrument, its design and
manu acture, is to be conducted within the precautions or other speci ic warnings located within
this manual. Failure to comply with these precautions and other speci ic warnings violates sa ety
standards o design, manu acture, and intended use. Raytech Switzerland assumes no liability or
the operation and use o this equipment.
SAFE O ERATION
Only quali ied knowledgeable persons should be permitted or attempt to operate this test
equipment. All test personnel should ully amiliarize themselves with the correct application and
operation o this and all test equipment prior to operation. Persons directly and indirectly engaged
in the operation o this test equipment should keep clear o all high voltage apparatus while
conducting tests and measurements.
WARNING!
Never connect the instrument to an energized trans ormer!
GROUND THE INSTRUMENT
The power cord supplied with the equipment must be connected an electrical receptacle with an
electrically grounded terminal (Earthed Ground). To minimize shock hazard, the Ground Terminal
on the instrument must be properly connected to an Earth grounded point. In many cases, the
quality o the sa ety ground terminal provided by the power cord does not ul il the sa ety
requirements.
Non grounded instruments are dangerous and may cause Personnel and instrument damage.
BEFORE A LYING OWER
Read this manual care ully be ore operating the system. The instruments are line operated1. They
operate rom a wide range power input rom 90 to 264Vac and 47…63Hz with automatic ranging.
1 The WR14 is battery operated and the WR14-R has a battery operation option. Both systems have sa ety ground lugs.
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 6 o 139

KEE AWAY FROM LIVE CIRCUITS
Operating personnel must not remove instrument covers. Component replacement and internal
repairs must be made by quali ied service personnel. Do not replace components or service this
instrument with the power cable connected. To avoid injuries, always discharge circuits, disconnect
power and remove external voltage sources be ore touching components.
DO NOT O ERATE IN AN EX LOSIVE ATMOS HERE
Do not operate the instrument in the presence o lammable gases or umes.
DO NOT SUBSTITUTE ARTS OR MODIFY INSTRUMENT
Because o the danger o introducing additional hazards, do not install substitute parts or per orm
any unauthorized modi ication to the instrument. Return the instrument to a Raytech service
department or service to ensure proper operation and that sa ety eatures are maintained.
Instruments, which appear damaged or de ective, should be made inoperative and secured against
unintended operation until they can be repaired by quali ied service personnel.
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 7 o 139

2 Unpacking
2.1 WR100
The instrument consists o the ollowing items:
The Instrument Hardwired power cable Set o Accessories
(Rack handles, Fuses)
Current cables Jumper cables
(2 cables with WR100-13R)
Cable bag
Potential cables: Channel 1 Potential cables: Channel 2 Potential cables: Channel 3
(with WR100-13R)
USB Memory Stick Instruction Manual
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 8 o 139

2.2 WR50
The instrument consists o the ollwoing items:
The Instrument Power cord (depending
on county o distribution)
Set o Accessories
(Rack handles, Fuses)
Current cables Jumper cables
(2 cables with WR50-13R)
Cable bag
Potential cables: Channel 1 Potential cables: Channel 2 Potential cables: Channel 3
(with WR50-13R)
USB Memory Stick Instruction Manual
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 9 o 139

2.3 WR14
The instrument consists o the ollwoing items:
The Instrument Power cord (depending
on county o distribution)
Set o Accessories
(Rack handles, Fuses)
Current cables Jumper cables
(2 cables with WR50-13R)
Cable bag
Potential cables: Channel 1 Potential cables: Channel 2 USB Memory Stick
Instruction Manual
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 10 o 139

I any o the above items are misssing or damaged, contact your local representative or Raytech
Switzerland immediately.
Optional test leads may be ordered (other than shown).
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 11 o 139

3 Introduction
3.1 General
Raytech Digital Winding Resistance meters are the enhanced version winding resistance system
with a most advanced demagnetizing circuit. They are designed or high degree o accuracy or the
measurement o very low resistance o inductive loads.
Ease of use: This intelligent system has an easy to use operation screen, which allows quick
selection o the current level to be measured. This system incorporates a touchscreen which allows
the user easy access to change or activate a eature.
Impressive Accuracy: The WR series o instruments have high precision, ully automatic, multi-
microprocessor based architecture. These systems are designed or highly accurate readings on-
site with laboratory precision.
Unique Measuring Technique: This newly designed technique o measurement incorporates a
high precision measurement circuit, a unique power source and the astest discharge unit on
market. Extensive iltering and high precision standards are used within the test system. The
WR100 is capable o precision measurements up to 100A (WR50: 50A, WR14: 15A).
Operation: The WR series o instruments apply a present current level, selected by the user, rom
0.025A to 100A. The 50V2 power source quickly charges the load and the results o the test are
displayed within a ew seconds automatically. The results are reported on the easy-to-read color
LCD display and can be stored or printed.
Compact Design: The WR series o instruments are designed or 19” rack-mount installation. The
WR50 and the WR14 series o instrument are although available in their own rugged waterproo
ield cases.
Simple Maintenance: There is no maintenance required. There is no calibration procedure (no
potentiometers to turn). This is due to the utilization o high precision components in the design.
Advanced rotection: Upon powering on the system initializes itsel with a sel -calibrating, circuit
checking sequence. I any problems are detected during this initialization period, or during
operation, the operator is immediately noti ied. The system constantly monitors the condition when
turned on. The WR series have extensive protection built in to the circuitry. This is one o the many
reasons we can extend our warranty to 2 years.
2 WR14: 30V
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 12 o 139

3.2 Advantages & Features
•Highest Accuracy and Precision o any high current test system.
•Automatic measurements o Low Resistance rom 0.00µΩ ...100kΩ.
•Demagnetizing Circuit (Advanced design)
•Microprocessor based system with internal storage or over 10000 test results.
•Data exchange via USB-Key
•Storage and Printing o test results while the test system is measuring.
•Complete automatic calibration system and system diagnostics.
•Standard USB 1.1 & RS232 (serial) Inter ace.
•Pure iltered DC Power source or the highest accuracy readings.
•Automatic, high e iciency cooling system to dissipate internal temperatures.
•Automatic shut o or over-temperature condition
•Color LCD with backlighting and touch screen
•Panel mounted Emergency Stop Switch
•Fastest discharge time in the market
•2 Year standard warranty
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 13 o 139

3.3 System Details
System Check:
The instruments are line operated3. The systems are designed to be used with AC Voltage power
sources between 90 to 264VAC 47…63Hz. You will ind a description and additional in ormation in
chapter 5.1.2.1 or the WR100. The systems per orm a sel -check each time that they are powered
on. The User should always visually inspect all connectors, cables and devices to be measured to
avoid any sa ety issues.
Limitations of Winding Resistance Testing:
In general, there are no limitations on testing low or high inductive windings o trans ormers.
The test systems are specially designed to test all trans ormer windings.
Discharging the Transformer windings:
The WR systems are specialized systems designed to measure Trans ormer windings. These
systems are equipped with heavy-duty discharge circuits that are very unique in design.
The internal discharge circuit dissipates the stored energy in the trans ormer windings with a
“Constant Power Discharge Circuit” that is unique to all trans ormer winding test systems.
That is the reason why Raytech systems can discharge trans ormers more than 10 times aster
than any other system on the market.
I a cable happens to all o during test, the system will STILL discharge the test object sa ely with
the automatic Constant Power Discharge Circuit.
The Potential Test Leads are part o the sa ety circuit and have the ability to discharge a
trans ormer should one o the current leads become detached.
WARNING!
Do not use a smaller gauge potential cables (Channel 1, 2, or 3) then the
original Raytech cables supplied!
3 The WR14-R has a battery operated option in addition to mains power
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 14 o 139

Low Resistance Testing:
The WR series o test instruments utilize a 4 wire measuring technique or each Channel. The
points where the potential leads are connected determine the resistance reading.
The test set employs a very simple principle o Ohm’s law:
R=U
I
R = Resistance
U = Voltage
I = Current
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 15 o 139

4 Quick Start Guide
4.1 Instrument Operation – rofiles deactivated4
For examples o Trans ormer connections see chapter 4.4 "Connection to Test Object" on page 19.
1. Power on the instrument 2. Select the Test Current:
press Range or Setup / Range
3. Press start button 4. Get the results
5. Press stop button
WARNING!
Wait until the green light shows
"Sa e" be ore disconnecting the
cables!
4 The checkbox "Use Pro iles" is not selected in the Setup under General
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 16 o 139

4.2 Instrument Operation – Use rofiles
For examples o Trans ormer connections see chapter 4.4 "Connection to Test Object" on page 19.
1. Power on the instrument 2. Check (enable) “Use Pro iles”
… and touch “OK”
3. Touch “Pro il” 4. Touch “New”
5. Touch “New Trans ormer” 6. De ine new Trans ormer parameters by
selecting the symbols at the bottom o screen
Then touch “Go”
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 17 o 139

7. Enter additional Data and touch “Back” 8. Touch “Caption” or the blue area above the
Result to change.
9. Choose a Caption... 10. … and touch “OK”
11. Start a Measurement as usual
WARNING!
Wait until the green light shows
"Sa e" be ore disconnecting the
cables!
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 18 o 139

4.3 Selection the proper current range
Ensure that the test current does not exceed 10% o the rated winding current. This could cause
erroneous reading due to heating in the winding.
4.4 Connection to Test Object
Always check the winding schematic on the nameplate and trace the current path through the
windings.
You can save time i you measure the high voltage side in series with the low voltage side rom the
same magnetic core. Because there are more turns on the high voltage side you reach much aster
saturation lux in the core. This helps to stabilize the measurement and saves time.
The potential leads must be connected in between the current leads. Do not clip the potential leads
to the current leads.
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 19 o 139

4.4.1 Single hase Transformer, Vector Group 0
Measurement o HV and LV Winding
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14 Page 20 o 139