INSTRUCTION MANUAL
ENGLISH
RAYTECH AG , OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND
CT-T1
CURRENT TRANSFORMER TESTER
Contents
1. Safety Precautions
5
1.1 Safe Operation....................................................................................................................5
1.1 Ground The Instrument........................................................................................................5
1.2 Before Applying Power........................................................................................................6
1.3 Keep Away From Live Circuits.............................................................................................6
1.4 Do Not Operate In An Explosive Atmosphere......................................................................6
1.5 Do Not Substitute Parts Or Modify Instrument.....................................................................6
2. Unpacking
7
3. Introduction
8
3.1 General................................................................................................................................8
3.2 Advantages & Features.......................................................................................................9
3.3 System Details.....................................................................................................................9
3.3.1. System Check..........................................................................................................9
3.3.2. CT Demagnetizing...................................................................................................9
3.3.3. CT Turns Ratio Test.................................................................................................9
3.3.4. CT Polarity Test......................................................................................................10
3.3.5. CT Excitation Test..................................................................................................10
3.3.6. VT Turns Ratio Test...............................................................................................10
3.3.7. Limitations of Testing.............................................................................................10
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