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THE USE OF ROGOWSKI COILS FOR CURRENT WAVEFORM MEASUREMENT IN POWER ELECTRONIC CIRCUITS
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| Author(s) |
W. F. Ray; K. D. Murray |
| Abstract |
A Rogowski coil is an air cored solenoidal winding of small cross section which can be looped around a conductor carrying a current i. A voltage is induced in the coil proportioned to di/dt. This voltage may be integrated to reproduce the current waveform. A fast integrator is required with a limited low frequency gain to reduce drift effects. The paper describes the design and construction of a Rogowski coil and integrator for measuring current waveforms up to 2500A peak containing fast transients and therefore suitable for power electronic circuit development. Problems associated with connecting the coil to the integrator are discussed and oscilloscope waveforms shown and compared with those from a coaxial shunt. |
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| Filename: | Unnamed file |
| Filesize: | 2.647 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-15 by System |
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