Vanguard EZCT-2000B User Manual
Page 3
REV 1 EZCT-2000B USER’S MANUAL
ii
TABLE OF CONTENTS
CONVENTIONS USED IN THIS DOCUMENT .................................................................................................................... 1
1.0 INTRODUCTION
................................................................................................................................................ 2
1.1
General Description and Features ............................................................................................................... 2
1.2
Furnished Test Accessories .......................................................................................................................... 4
1.3 Technical
Specifications
............................................................................................................................... 5
1.4
EZCT-2000B Controls and Indicators............................................................................................................ 6
2.0 PRE-TEST
SETUP
................................................................................................................................................ 8
2.1 Operating
Voltages
...................................................................................................................................... 8
2.2
LCD Screen Contrast Control ....................................................................................................................... 8
2.3 Printer
Paper
Control
................................................................................................................................... 8
2.4 Printer
Paper
................................................................................................................................................ 8
3.0 OPERATING
PROCEDURES
.............................................................................................................................. 10
3.1
EZCT-2000B Cable Connections ................................................................................................................. 10
3.2
EZCT-2000B X Input Voltage Warning ....................................................................................................... 15
3.3 Performing
Tests
........................................................................................................................................ 16
3.3.1.
Entering Test Record Header Information ........................................................................................ 16
3.3.2.
Performing Resistance, Excitation, and Ratio Tests .......................................................................... 19
3.3.3.
Performing a CT Burden Test ............................................................................................................ 30
3.3.4.
Performing an Insulation Resistance Test ......................................................................................... 35
3.3.5.
Performing a Current Source Test .................................................................................................... 40
3.4
Working With Test Records ....................................................................................................................... 42
3.4.1.
Restoring and Printing a Test Record From Flash EEPROM .............................................................. 42
3.4.2.
Restoring and Printing a Test Record From a USB Flash Drive ......................................................... 46
3.4.3.
Printing a Restored Test Record ....................................................................................................... 48
3.4.4.
Printing a Directory of Test Records Stored in the EZCT-2000B’s Memory ...................................... 50
3.4.5.
Printing a Directory of Test Records Stored in a USB Flash Drive ..................................................... 53
3.4.6.
Copying Test Records to a USB Flash Drive ....................................................................................... 55
3.4.7.
Erasing Test Records From the Flash EEPROM ................................................................................. 58
3.4.8.
Erasing Test Records From a USB Flash Drive ................................................................................... 61
3.5
Working With Test Plans ............................................................................................................................ 64
3.5.1.
Extracting the Test Plan From a Test Record .................................................................................... 64
3.5.2.
Printing a Directory of Test Plans Stored in the EZCT-2000B’s Memory .......................................... 66
3.5.3.
Printing a Directory of Test Plans Stored in a USB Flash Drive ......................................................... 68
3.5.4.
Printing a Test Plan ........................................................................................................................... 70
3.5.5.
Erasing Test Plans From the Flash EEPROM ...................................................................................... 72
3.5.6.
Erasing Test Plans From a USB Flash Drive ....................................................................................... 75
3.5.7.
Loading a Test Plan from the EZCT-2000B’s Flash EEPROM ............................................................. 78
3.5.8.
Loading a Test Plan from a USB Flash Drive ...................................................................................... 80
3.5.9.
Running a Test Using a Loaded Test Plan ......................................................................................... 82
3.5.10.
Unloading a Test Plan from the Working Memory ........................................................................... 87
4.0
CHANGING SETUP PARAMETERS .................................................................................................................... 88
4.1
Setting the Knee Point Marker .................................................................................................................. 88
4.2
Enabling and Disabling the Buried CT in Transformer Delta Option .......................................................... 90
4.2.1.
Enabling the Buried CT in Transformer Delta Option ....................................................................... 90
4.2.2.
Disabling the Buried CT in Transformer Delta Option ...................................................................... 91
4.3
Setting the Clock ........................................................................................................................................ 95
5.0
DIAGNOSTICS, VERIFICATION, AND TROUBLESHOOTING .............................................................................. 97
5.1
Performing a Diagnostics Test ................................................................................................................... 97
5.2
Verifying the EZCT-2000B’s V
x
Sense Circuit Using an External Meter ...................................................... 99
5.3
Verifying the EZCT-2000B’s I
x
Sense Circuit Using an External Meter ..................................................... 100