| 摘要 |
This invention pertains to electrical equipment testing and it can be applied to the control of leakage current in the wind electrical equipment (WEE).The purpose of this invention is to enhance electrical safety. The electric circuit of the device (fig.1) contains a measuring converter 1, a magnetization coil 2, a Hall generator 3, a threshold amplifier 4, an executive organ 5, sections 6 of the coil 2, Hall generators 7, a diamagnetic ring 8, a cable 9, a generator 10 and loading 11. Each section is connected to the feed circuit 22 of the Hall generator 7 installed in one of the uniformly distributed grooves of the diamagnetic ring 8. The diamagnetic ring along with the permalloy core 21 are enclosed by the cable 9, which connects the WEE generator 10 to the loading 11.This device allows to the leakage current of the WEE to be integrally assessed, promptly report its increase, and timely disable the generator excitation.<IMAGE>
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