Testing of High Current Transformer by Non-uniform Equivalent Magnetomotive Force Method |
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| Kaifeng Qu, Wei Zhao, Bo Jiang, Songling Huang, Zijing Huang |
- Abstract:
- In the testing of high current transformer performance under interference from external current, it is very difficult to reproduce the high current in adjacent bus-bar or eccentric primary bus-bar. To overcome the testing difficulty, this manuscript presents an effective and simple method named as Non-uniform Equivalent Magnetomotive Force (NEMMF) Method, which uses a single non-uniformly distributed testing winding to reproduce the magnetic field from adjacent and concentric primary bus-bars simultaneously. The principle of the NEMMF method is demonstrated and proved by magnetic circuit method, and some key formulas determining the parameters of testing winding have been derived. The NEMMF method is then verified by numerical simulation using Finite Element Method (FEM).
- Keywords:
- current transformer, high current, testing, verification
- Download:
- IMEKO-TC4-2013-153.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2013
- Title:
- 19th IMEKO TC4 Symposium Measurements of Electrical Quantities (together with 17th TC4 IWADC Workshop on ADC and DAC Modelling and Testing)
- Place:
- Barcelona, SPAIN
- Time:
- 18 July 2013 - 19 July 2013