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Vanguard Instruments EZCT Manuals
Manuals and User Guides for Vanguard Instruments EZCT. We have
3
Vanguard Instruments EZCT manuals available for free PDF download: User Manual, Operating Procedures Manual, Calibration Instruction
Vanguard Instruments EZCT Operating Procedures Manual (47 pages)
Digital Current Transformer Tester
Brand:
Vanguard Instruments
| Category:
Test Equipment
| Size: 3 MB
Table of Contents
Table of Contents
5
1 Introduction
7
Applicability
7
Functional Description
7
General Description
7
Safety Summary
7
Furnished Test Accessories
8
2 EzctAnd EZCT-10Specifications
9
Table 1 EzctSpecifications
9
Table 2 EZCT-10Specifications
10
3 Controls and Indicators
11
EZCT Controls & Indicators
11
Figure 1 EZCT Control Panel (Controls and Indicators)
11
Table 3 EZCT Controls and Indicators
12
EZCT-10 Controls & Indicators
13
Figure 2 EZCT-10 Control Panel (Controls and Indicators)
13
Table 4 EZCT Controls and Indicators
14
4 Pretest Setup
15
Operating Voltages
15
EZCT LCD Contrast Control
15
EZCT Printer Control
15
RS-232C Computer-Interface Port
15
EZCT Printer Paper
15
5 Ezct Cable Connections
16
Figure 3 Typical EZCT Cable Connection
16
Figure 4 Connection to Cts on Wye Transformer
17
Figure 5 Connection to Cts on a Delta Transformer
17
Figure 6 Typical EZCT Connection to Multiple Cts
18
Run Excitation and Ratio Test
19
Run Test Procedure
19
Table 5 Run Excitation and Ratio Test
19
Table 5 Run Excitation and Ratio Test (Continued)
20
Table 5 Run Excitation and Ratio Test (Continued)
21
Figure 7 Typical EZCT Tabulated Report Printout
23
Figure 8 Typical EzctExcitation Graph
24
Run Ratio Only Test
25
Table 6 Run Ratio Only Test
25
Table 6 Run Ratio Only Test (Continued)
26
Figure 9 Ratio Only Test Report Printout
27
Enter Test Record ID Procedure
28
EZCT Test Record ID
28
Table 7 Enter Test Record ID Procedure
28
Table 7 Enter Test Record ID Procedure (Continued)
29
EZCT Test (Shot) Record ID Directory
30
Table 8 Print Test Record ID Directory Procedure
30
Figure 10 Test Record ID Directory Printout
31
Load Test Record ID Procedure
32
Table 9 Load Test Record ID Directory Procedure
32
Restore Record Procedure
33
Table 10 Review Record Procedure
33
Print Record Procedure
34
Table 10 Review Record Procedure (Continued)
34
Table 11 Print Record Procedures
34
Figure 12 Typical Graphic Results Print out with Multiple Excitation Curves
36
Print Test Record Directory Procedure
37
Table 12 Print Test Record Directory
37
Figure 13 Typical Test Record Directory Printout
38
Erase Test Record Procedure
39
Table 13 Erase Test Record Procedure
39
Computer Interface Procedure
40
Table 14 Computer Interface Procedures
40
Set EZCT Real Time Clock Procedures
41
Table 15 Set Clock Procedures
41
Set Knee Point Marker
42
Table 16 Set Knee Point Marker Procedures
42
Print (Z) Impedance in the Tabulated Results
43
Table 17 Print Impedance Procedures
43
Figure 14 Tabulated Report with Impedance Print out
44
Diagnostic
45
Table 18 EZCT Diagnostic Procedures
45
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Vanguard Instruments EZCT User Manual (56 pages)
DIGITAL CURRENT-TRANSFORMER TESTERS
Brand:
Vanguard Instruments
| Category:
Test Equipment
| Size: 1 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
EZCT Technical Specifications
8
Table 1. EZCT Technical Specifications
8
EZCT-10 Technical Specifications
9
Table 2. EZCT-10 Technical Specifications
9
Controls and Indicators
10
Figure 1. EZCT/EZCT-10 Controls and Indicators
10
Table 3. Functional Descriptions of EZCT/EZCT-10 Controls and Indicators
11
Pre-Test Setup
12
Operating Voltages
12
LCD Screen Contrast Control
12
Printer Paper Control
12
Printer Paper
12
Operating Procedures
14
EZCT Cable Connections
14
Figure 2. Typical EZCT Cable Connection
14
Figure 3. Connection to Ct's on y Transformer
15
Figure 4. Connection to Ct's on a Delta Transformer
15
Figure 5. Typical EZCT Connection to Multiple Ct's
16
Performing Tests
17
Entering Test Record Header Information
17
Performing an Excitation and Ratio Test
20
Figure 6. Typical EZCT Tabulated Report Printout
25
Table 4. Descriptions of Tabulated Test Results Elements
26
Figure 7. Typical EZCT Excitation Graph
26
Performing a Turns Ratio Only Test
27
Figure 8. Typical Turns Ratio Only Test Report Printout
30
Working with Test Records
31
Printing a Test Record Directory
31
Figure 9. Sample Test Record Directory Printout
32
Restoring and Printing a Test Record from Flash EEPROM
33
Figure 10. Typical Abbreviated Test Record Printout
35
Printing a Restored Test Record
36
Erasing Test Records from the Flash EEPROM
37
Changing Setup Parameters
39
Setting the Knee Point Marker
39
Figure 11. Graphic Report Showing Knee Point Marker
40
Selecting the Buried CT in Transformer Delta Option
41
Enabling the Buried CT in Transformer Delta Option
41
Disabling the Buried CT in Transformer Delta Option
42
Figure 12. Buried CT in a Delta Transformer Illustration 1
44
Figure 13. Buried CT in a Delta Transformer Illustration 2
44
Setting the Clock
46
Setting the Option to Print Impedance (Z) in the Tabulated Results
47
Figure 14. Tabulated Report Printout with Impedance Values
49
Diagnostics, Verification, and Troubleshooting
50
Performing a Diagnostics Test
50
Verifying the Ezct's V X Sense Circuit Using an External Meter
52
Figure 15. EZCT V
52
Verifying the Ezct's I X Sense Circuit Using an External Meter
53
Figure 16. EZCT I X Verification Test Connections
53
Quickly Verifying the Ezct's Turns Ratio Circuit
54
Figure 17. EZCT Turns Ratio Verification Test Connections
54
Troubleshooting Guide
55
Vanguard Instruments EZCT Calibration Instruction (4 pages)
Brand:
Vanguard Instruments
| Category:
Test Equipment
| Size: 0 MB
Table of Contents
Instruction to Calibrate the Ezct
1
Upgrade Firmware
1
Create Hyper Terminal Connection
1
Connect EZCT to Computer
1
Calibrate X RMS Sense
2
Calibrate X-Ratio Sense and H-Ratio Sense
3
Calibrate Current RMS Sense
3
Complete Calibration
4
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