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EZCT S2A
Vanguard Instruments EZCT S2A Manuals
Manuals and User Guides for Vanguard Instruments EZCT S2A. We have
1
Vanguard Instruments EZCT S2A manual available for free PDF download: User Manual
Vanguard Instruments EZCT S2A User Manual (91 pages)
DIGITAL CURRENT-TRANSFORMER TESTER
Brand:
Vanguard Instruments
| Category:
Test Equipment
| Size: 2 MB
Table of Contents
Table of Contents
3
Conventions Used in this Document
5
Introduction
6
General Description and Features
6
Furnished Accessories
7
Technical Specifications
8
Table 1. EZCT S2A Technical Specifications
8
EZCT S2A Controls and Indicators
9
Figure 1. EZCT S2A Controls and Indicators
9
Table 2. Functional Descriptions of EZCT S2A Controls and Indicators
10
Pre-Test Setup
11
Operating Voltages
11
LCD Screen Contrast Control
11
Printer Paper Control
11
Printer Paper
11
Operating Procedures
13
EZCT S2A Cable Connections
13
Figure 2. Typical EZCT S2A Excitation and Ratio Test Cable Connection
13
Figure 3. Bushing CT Connection on Delta Transformer
14
Figure 4. Bushing CT Connection on y Transformer
14
Performing Tests
15
Entering Test Record Header Information
15
Performing Excitation and Ratio Tests
18
Figure 5. Typical EZCT S2A Tabulated Report Printout
25
Table 3. Descriptions of Tabulated Test Results Elements
26
Figure 6. Typical EZCT S2A Graphic Report
27
Working with Test Records
28
Restoring and Printing a Test Record from Flash EEPROM
28
Restoring and Printing a Test Record from a USB Flash Drive
33
Printing a Restored Test Record
36
Printing a Directory of Test Records Stored in the EZCT S2A's Memory
38
Figure 7. Typical Internal Test Record Directory Printout
40
Erasing Test Records from the Flash EEPROM
41
Erasing Test Records from a USB Flash Drive
44
Working with Test Plans
47
Extracting the Test Plan from a Test Record
47
Printing a Directory of Test Plans Stored in the EZCT S2A's Memory
49
Figure 8. Typical EZCT S2A Flash EEPROM Test Plan Directory Printout
50
Printing a Directory of Test Plans Stored in a USB Flash Drive
51
Figure 9. Typical USB Flash Drive Test Plan Directory Printout
52
Printing a Test Plan
53
Table 4. Description of Test Plan Elements
54
Figure 10. Typical Test Plan Printout
54
Erasing Test Plans from the Flash EEPROM
55
Erasing Test Plans from a USB Flash Drive
58
Loading a Test Plan from the EZCT S2A's Flash EEPROM
61
Loading a Test Plan from a USB Flash Drive
63
Running a Test Using a Loaded Test Plan
65
Unloading a Test Plan from the Working Memory
70
Changing Setup Parameters
71
Setting the Knee Point Marker
71
Figure 11. Graphic Report Showing Knee Point Marker
73
Enabling and Disabling the Buried CT in Transformer Delta Option
74
Enabling the Buried CT in Transformer Delta Option
74
Disabling the Buried CT in Transformer Delta Option
75
Figure 12. Buried CT in a Delta Transformer Illustration 1
77
Figure 13. Buried CT in a Delta Transformer Illustration 2
77
Setting the Clock
79
Printing Raw Memory Buffer Data
80
Figure 14. Sample Raw Data Printout
81
Diagnostics, Verification, and Troubleshooting
82
Performing a Diagnostics Test
82
Verifying the EZCT S2A's
84
Sense Circuit Using an External Meter
84
Figure 15. EZCT S2A V
84
Verification Test Connections
84
Verifying the EZCT S2A's I
85
Sense Circuit Using an External Meter
85
Figure 16. EZCT S2A I
85
Verification Test Connections
85
Quickly Verifying the EZCT S2A's Turns Ratio Circuit
86
Figure 17. EZCT S2A Turns Ratio Verification Test Connections
86
Troubleshooting Guide
87
Upgrading Firmware
88
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