Megger MVCT Analyzer Manuals

Manuals and User Guides for Megger MVCT Analyzer. We have 1 Megger MVCT Analyzer manual available for free PDF download: User Manual

Megger MVCT User Manual (159 pages)

VOLTAGE AND CURRENT TRANSFORMER TEST INSTRUMENT

Brand: Megger | Category: Test Equipment | Size: 7 MB

Table of Contents
2
Mvct
12
Introduction
12
Terminology
12
Acronyms
12
MVCT Unpack and Preparation for Use
13
Contents of MVCT Kit
13
Assembly and Installation
15
Communication Ports
15
Ethernet Ports on MVCT
15
Ethernet Ports on Display
16
USB 2.0 Interface on Display
16
Supply Voltage
16
Figure 1 Ethernet Ports
16
Figure 2 Ethernet Port to Power Display
16
Figure 3 USB Port
16
Operating System
17
Basic Theory of Operation
17
General
17
CT Testing
17
Ratio Test
17
Polarity Test
18
Excitation Test
20
Insulation Resistance Test
21
Burden Test
22
Secondary Winding Resistance
23
Powering System
23
Initial Start up
23
User Interface
24
Integrated Display or Smart Touch View Interface
24
Figure 4 Initial Screen
24
Personal Computer Interface
25
Figure 5 Instrument Connection Screen
25
Figure 6 Boot up Home Screen
25
Figure 7 Powerdb Lite Initial Screen
26
Figure 8 Instrument Configuration Dialog
27
Figure 9 Form Selection Dialog
27
Figure 10 Instrument Logon Screen
28
Figure 11 Connection Dialog
28
Software Interface
29
Figure 12 Powerdb Lite Home Screen
29
Testing Mode
32
CT Testing Mode - Menu Items
32
Figure 13 Device Settings - CT Testing
33
Figure 14 Name Plate Data - CT Testing Mode
36
Figure 15 Home Screen CT Testing
38
Figure 16 Run All Test Screen
39
Figure 17 Manual Test Screen
40
Figure 18 Manual Test Connection Diagram
42
Figure 19 Manual Test Example
44
Figure 20 Demagnetization Connection Diagram
45
Figure 21 Demagnetization Process
46
Figure 22 Self Test Connection Diagram
47
Figure 23 Saturation Test Screen
48
Figure 24 Ratio Test Screen
49
Figure 25 Winding Resistance Test Screen
51
Figure 26 Insulation Resistance Test Screen
53
Figure 27 Burden Test Screen
54
Figure 28 Sample CT Test Report
55
Figure 29 Sample Multi Tap Test Report
57
Figure 30 Ratio and Phase Error Tables
58
Figure 31 Report Tap Configuration Dialog
59
Figure 33 Excitation Curve Data
60
Figure 34 View Excitation Data Points
61
Figure 35 File Operation Tool Bar
61
Figure 36 File Manager Screen
62
Figure 37 File Operations Using PC
63
VT Testing Mode - Menu Items
64
Figure 38 File Save Using PC
64
Figure 39 Device Settings - VT Testing
64
Figure 40 Name Plate Data - VT Testing Mode
67
Figure 41 Home Screen VT Testing Mode
69
Figure 42 Run All Test Screen
70
Figure 43 Demagnetization Connection Diagram
71
Self Test
72
Figure 44 Demagnetization Process
72
Figure 45 VT Ratio Test Screen
73
Figure 46 Saturation Test Screen
74
Relay Testing Mode
81
Testing CT with MVCT
82
Test Plan Creation
82
CT Saturation Test
86
Method 1 - Concurrent
86
Method 2 - Non Concurrent or Testing a Single Tap
90
Ratio Test
94
Method 1 - Concurrent
94
Method 2 - Non Concurrent or Testing a Single Tap
98
CT Winding Resistance Test
103
Method 1 - Concurrent
103
Method 2 - Non Concurrent or Testing a Single Tap
107
Insulation Test
111
Burden Test
114
Manual Test
118
Demagnetization
121
Self Test
123
Testing Vt's with MVCT
125
Running a Complete Test of VT and Test Plan Creation
125
Testing VT Ratio and Phase
131
Testing Voltage Transformer - Saturation/Excitation Test
135
Testing Voltage Transformer Winding Resistance
138
Testing Voltage Transformer: Secondary Short Circuit Impedance
141
Testing Voltage Transformer : Demagnetization
145
Testing Voltage Transformer: Self Diagnostic
147
Testing Relays with MVCT
149
Service Data
149
Preventive Maintenance
149
Examine the Unit Every Six Months for
150
Upgrading Software
150
Service and Repair Instructions
151
Basic Troubleshooting
151
Preparation for Reshipment
152
Appendix I Cts Mounted on Transformer Bushings
154
Appendix II Testing CT in Reactor
157
Appendix III Cts Inside Delta Connection
159

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Megger MVCT User Manual (159 pages)

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