Megger Three-Phase TTR User Manual

AVTMTTR330 Rev 3 March 2010
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List of Figures
Figure 1-1 Top Panel Controls ....................................................................................................................... 3
Figure 1-2. User Interface Panel ...................................................................................................................... 4
Figure 1-3. Communications ports ................................................................................................................. 5
Figure 1-4. HOME Action Icons .................................................................................................................... 5
Figure 1-5. Utility Icons .................................................................................................................................... 6
Figure 4-1. Setup for Testing Single-Phase Transformer .......................................................................... 12
Figure 4-2. Setup for Testing Single-Phase Autotransformer ................................................................... 12
Figure 4-3. Setup for Testing Single-Phase, Type A (Straight Design) Step Voltage Regulator .......... 13
Figure 4-4. Setup for Testing Single-Phase, Type B (Inverted Design) Step Voltage Regulator ......... 14
Figure 4-5. Setup for Testing Unmounted Current Transformer ............................................................ 17
Figure 4-6. Setup for Testing Taps on Multiple Tap CT ........................................................................... 18
Figure 4-7. Setup for Testing BCT Mounted on Single-Phase Two-Winding Transformer ................ 19
Figure 4-8. Setup for Testing BCT Mounted on Delta Winding on a Three-Phase Power
Transformer ................................................................................................................................. 20
Figure 4-9. Setup for Testing BCT Mounted on Wye Winding of a Three-Phase Transformer ......... 21
Figure 5-1 New Test Form screen ............................................................................................................... 24
Figure 5-2 Three Phase QUICK test Screen .............................................................................................. 25
Figure 5-3 File Manager -Recall Test ........................................................................................................... 25
Figure 5-4. File Manager –SAVE Test screen ............................................................................................. 26
Figure 5-5 Global Settings – Preferences screen ....................................................................................... 26
List of Tables
Table 4-1. Test Lead Markings for Single-Phase Transformers ................................................................... 13
Table 4-2. Test Lead Markings for Three-Phase Transformers ................................................................... 15
Table 4-3. T-type Transformer Winding Phase Relationship....................................................................... 22
Table 6-1. Troubleshooting Guide ................................................................................................................... 37
Table 7-1. Replacement Parts List .................................................................................................................... 39

Megger Three-Phase TTR Specifications

General

Brand	Megger
Model	Three-Phase TTR
Category	Measuring Instruments
Language	English