| 摘要 |
<p>A current transducer system for measuring AC current in a high-voltage main circuit having a circuit breaker (1) and a disconnecting switch (2) in an integrated gas-insulated switchgear. The system comprises a current sensor (22a,22b) for detecting the AC current and outputting an analog electric signal representing the AC current, the current sensor disposed near the circuit breaker. The system further comprises a sensor unit (23a,23b) including an analog-to-digital converter for converting the analog electric signal to a digital electric signal, and an electric-to-optic converter for converting the digital electric signal to a digital optic signal, the sensor unit disposed near the circuit breaker. The system further comprises optic transmission means (26a,26b) for transmitting the digital optic signal.</p> |
