Model ATRT-03 (v) Operating Instruction
46
15-1. Print Out of a Delta-to-Wye Transformer Test in Column Format
Figure 15-1. Delta-to-Wye Column Format Printout
Test Result Print Out is explained below:
1. Test record time and date is printed at the top line of print out.
2. Test voltage is 40 volts in this test. See section 11.2 for more detail about test voltages.
3. Type of transformer under test is Delta to Wye.
4. H tap voltage is 12,000 volts.
5. X tap voltage is 208 volts.
6. Calculated ratio shall be (C_RATIO) 99.9288
7. Measured ratio, excitation current, % Diff
A phase: Ratio=100.05, Ext Current= 002 mA, % Diff= 0.12
B phase: Ratio=100.06, Ext Current= 002 mA, % Diff= 0.13
C phase: Ratio=100.06, Ext Current= 002 mA, % Diff= 0.13
8.Winding polarity is shown as “+” or in phase.
Содержание ATRT-03
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Страница 26: ...Model ATRT 03 v Operating Instruction 24 Figure 13I Typical Connection for Bushing Mount CTs on Wye Transformer...
Страница 88: ...Model ATRT 03 v Operating Instruction 86 APPENDEX A Table of Standard Transformers...
Страница 89: ...Model ATRT 03 v Operating Instruction 87 APPENDIX B Table of Non Standard Transformers...
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Страница 91: ...Model ATRT 03 v Operating Instruction 89 APPENDIX B Table of Non Standard Transformers cont...
Страница 92: ...Model ATRT 03 v Operating Instruction 90 APPENDIX B Table of Non Standard Transformers cont...
