Vanguard TRM-203_403 User Manual
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REV 1 TRM-203 AND TRM-403 USER’S MANUAL
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TABLE OF CONTENTS
CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1
1.0
INTRODUCTION .................................................................................................................... 2
1.1
General Description and Features ................................................................................... 2
1.2
Technical Specifications ................................................................................................... 4
1.3
TRM Controls and Indicators ........................................................................................... 5
2.0
PRE-TEST SETUP ................................................................................................................... 6
2.1
Operating Voltages .......................................................................................................... 6
2.2
LCD Screen Contrast Control ............................................................................................ 6
2.3
Printer Paper Control ....................................................................................................... 6
2.4
Printer Paper .................................................................................................................... 6
2.5
Replacing the Thermal Printer Paper ............................................................................... 7
3.0
OPERATING PROCEDURES ................................................................................................... 8
3.1
Configuring the LTCA Software for use with the TRM ..................................................... 8
3.2
Connecting the TRM to a PC via Bluetooth ................................................................... 10
3.3
Typical Connections to a Load Tap Changer (LTC) ......................................................... 17
3.4
Typical TRM-203/403 Cable Connections ...................................................................... 17
3.5
General Procedures ....................................................................................................... 17
3.6
Entering Test Record Header Information ..................................................................... 19
3.7
Setting the Date and Time ............................................................................................. 23
3.8
Setting the Interface Language ...................................................................................... 24
3.9
Performing a Three-Phase Resistance Test ................................................................... 25
3.10
Performing a Single-Phase Resistance Test ................................................................... 35
3.11
Performing a Load Tap Changer / Voltage Regulator Resistance Test .......................... 42
3.12
Performing a Special Resistance Test ............................................................................ 51
3.13
Performing a Dynamic LTC Test ..................................................................................... 58
3.14
Performing a Diagnostic Test ......................................................................................... 63
3.15
Demagnetizing the Transformer Core ........................................................................... 65
3.16
Working with Test Records ............................................................................................ 67
3.16.1.
Saving Test Records ................................................................................................ 67
3.16.2.
Printing the Contents of the Working Memory ..................................................... 69
3.16.3.
Printing a Test Record Directory ............................................................................ 70
3.16.4.
Restoring a Test Record .......................................................................................... 73
3.16.5.
Copying Test Records to a USB Flash Drive ............................................................ 77
3.16.6.
Erasing Test Records ............................................................................................... 80
3.17
Converting Resistance Measurements .......................................................................... 85