List of tables, List of figures – Vanguard EZCT-2000B User Manual
Page 4
EZCT-2000B USER’S MANUAL
REV 1
iii
5.4
Quickly Verifying the EZCT-2000B’s Turns Ratio Circuit .......................................................................... 101
5.5 Troubleshooting
Guide
............................................................................................................................ 102
6.0 UPGRADING
FIRMWARE
............................................................................................................................... 103
7.0
Appendix A - Calculating Turns Ratio on a Shunt Reactor ............................................................................ 107
LIST OF TABLES
Table 1. EZCT-2000B Technical Specifications ............................................................................................................... 5
Table 2. Functional Descriptions of EZCT-2000B Controls and Indicators ..................................................................... 7
Table 3. Descriptions of Tabulated Test Results Elements .......................................................................................... 28
Table 4. Description of Test Plan Elements ................................................................................................................. 71
LIST OF FIGURES
Figure 1. EZCT-2000B Controls and Indicators .............................................................................................................. 6
Figure 2. Typical EZCT-2000B Excitation and Ratio Test Cable Connection ................................................................. 10
Figure 3. EZCT-2000B Insulation Resistance Test Cable Connection ........................................................................... 11
Figure 4. EZCT-2000B CT Load Burden Test Cable Connection .................................................................................... 12
Figure 5. EZCT-2000B Typical Current Source Connection .......................................................................................... 13
Figure 6. Bushing CT Connection on Delta Transformer .............................................................................................. 14
Figure 7. Bushing CT Connection on Y Transformer .................................................................................................... 14
Figure 8. Sample CT Name Plate .................................................................................................................................. 15
Figure 9. Typical EZCT-2000B Tabulated Report Printout ............................................................................................ 27
Figure 10. Typical EZCT-2000B Graphic Report with Multiple Plot Curves .................................................................. 29
Figure 11. EZCT-2000B Typical Burden Test Results Report Printout .......................................................................... 34
Figure 12. EZCT-2000B Typical Insulation Resistance Test Results Report Printout .................................................... 39
Figure 13. Typical Internal Test Record Directory Printout ......................................................................................... 52
Figure 14. Typical USB Flash Drive Record Directory Printout ..................................................................................... 54
Figure 15. Typical EZCT-2000B Flash EEPROM Test Plan Directory Printout ............................................................... 67
Figure 16. Typical USB Flash Drive Test Plan Directory Printout ................................................................................. 69
Figure 17. Typical Test Plan Printout ........................................................................................................................... 71
Figure 18. Graphic Report Showing Knee Point Marker .............................................................................................. 89
Figure 19. Buried CT in a Delta Transformer Illustration 1 .......................................................................................... 93
Figure 20. Buried CT in a Delta Transformer Illustration 2 .......................................................................................... 93
Figure 21. EZCT-2000B V
x
Verification Test Connections ............................................................................................ 99
Figure 22. EZCT-2000B I
x
Verification Test Connections ............................................................................................ 100
Figure 23. EZCT-2000B Turns Ratio Verification Test Connections ........................................................................... 101
Figure 24 .................................................................................................................................................................... 107
Figure 25 .................................................................................................................................................................... 108
Figure 26 .................................................................................................................................................................... 109
Figure 27 .................................................................................................................................................................... 110
Figure 28 .................................................................................................................................................................... 111
Figure 29 .................................................................................................................................................................... 112
Figure 30 .................................................................................................................................................................... 113
Figure 31 .................................................................................................................................................................... 113