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AVTMTTR100
Megger AVTMTTR100 User Manual
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M
AVTMTTR100-ENG Rev 6 Nov 2015
22
Figure 5-5.
Setup for Testing Unmounted Current Transformer
Figure 5-6.
Setup for Testing Taps on Multiple Tap CT
TTR 100
POLARITY
DOT
X1 LEAD
H1
CT
H1 LEAD
X1
X2
H2 LEAD
H2
X2 LEAD
BUS OR USE
HEAVY GAUGE
LEAD WIRE
29
31
Table of Contents
Table of Contents
5
Introduction
9
Receiving Instructions
9
General Information
9
Safety
13
Specifications
17
Electrical
17
Environmental Conditions
19
Physical Data
19
Description
21
Principle of Operation
21
Controls, Indicators, and Connectors (Figure 4-1)
21
Figure 4-1 Single-Phase TTR Display & Control Panel
22
Figure 4-2. Top Side Connector Panel
23
Setup and Connections
25
General Instructions
25
Transformers
25
Single-Phase, Two-Winding Transformers
26
Distribution Transformers with Two Secondary Windings
26
Figure 5-1. Setup for Testing Single-Phase Transformer
27
Figure 5-2. Setup for Testing Single-Phase Autotransformer
27
Figure 5-3. Setup for Testing Single-Phase, Type a (Straight Design) Step Voltage Regulator
28
Figure 5-4. Setup for Testing Single-Phase, Type B (Inverted Design) Step Voltage Regulator
28
Current Transformers (Cts)
29
Figure 5-5. Setup for Testing Unmounted Current Transformer
30
Figure 5-6. Setup for Testing Taps on Multiple Tap CT
30
Figure 5-7. Setup for Testing BCT Mounted on Single-Phase Two-Winding Transformer
31
T-Type Transformers
32
Table 5-1. ANSI Transformer Winding Phase Relationship
32
Connections and Vector Voltage Diagrams
33
Table 5-2. ANSI Transformer Winding Phase Relationship
35
Table 5-3. CEI/IEC 76-1:2011 Transformer Winding Phase Relationship
45
Table 5-4. Transformer Winding Phase Relationship (Australian Std. 2374, Part 4 - 2003)
55
Operation
61
General Operating Procedure
61
Description of Menus and Test Screens
61
Figure 6-1. Opening Display Screen
62
Figure 6-2. Main Menu Screen
63
Figure 6-3. Transformer Configuration Screen
64
Figure 6-4. Single Phase Transformer Configuration Screen
65
Figure 6-4A. Additional Single Phase Transformer Configuration Screen
65
Figure 6-5. Three Phase Transformer Configuration Screen
66
Figure 6-5A. Three Phase Transformer Configuration Screen
66
Figure 6-6. T - Type Transformer Configuration Screen
66
Quick Test Single Phase Transformer
67
Figure 6-7. Transformer Rating Screen
67
Quick Test Three Phase Transformer
68
Test T-Type Transformers
69
Full Test Single Phase Transformer
70
Figure 6-8. TEST SETUP Screen
70
Full Test Single Phase Tapped Transformer
71
Full Test Cts
72
Full Test Regulator
72
Test Result Symbols
73
Custom Configurations
74
Figure 6-9. Custom Configs. Screen
74
System Setup
75
Figure 6-10. SYSTEM SETUP Screen 1
75
Figure 6-11. SYSTEM SETUP Screen 2
76
Figure 6-12. SAVED READINGS Screen
77
Error Messages
79
Table 6-1. Self-Test Error Messages
79
Table 6-2. Test Error Messages
80
Table 6-3. Test Result Error Messages
81
Table 6-4. Miscellaneous Messages
81
Use with the Optional Printer
82
Figure 6-13A. Sample Test Report Header
82
Figure 6-13B. Sample Single Phase Test Report
82
Using Comlink Program
83
Figure 6-14. Report Printout
87
Service
89
Maintenance
89
Calibration
89
TTR100 Test Set Functional Test
90
Battery Maintenance
91
Troubleshooting
93
Table 7-1. Troubleshooting Guide
93
Repair
94
Ordering Information and Spare Parts List
95
Warranty
99
4
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Megger AVTMTTR100 Specifications
General
Brand
Megger
Model
AVTMTTR100
Category
Test Equipment
Language
English
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