Application of photovoltaic technology to transmit information through fiber-optic measurement of large currents or high voltage transformer

Application of photovoltaic technology to transmit information through fiber-optic measurement of large currents or high voltage transformer. The high potential (or far) end, the measured current or voltage modulation of the optical signal transmitted through the optical fiber to the ground potential (or measurement) side,  mcb circuit breaker  conversion and demodulation electronics to obtain the measured current or voltage. According to the working principle of this device, also measure the temperature in the high potential side, vibration, displacement signal. Power systems commonly used electromagnetic    air circuit breaker high current or high voltage. Optical voltage transformer here only passive type photoelectric current common basic structure of voltage transformers, voltage  electric meter  by high optical parts, fiber optic voltage sensor and the photodetector three major components. High-pressure parts, including high-voltage insulated casing, insulating gas, etc., the measured high voltage is applied to the upper electrode and lower electrode is grounded, bubble Michaels crystal electro-optic effect in the electric field. If the high voltage by a capacitive voltage divider at a certain partial pressure ratio, reduced to the optical voltage sensor can withstand a lower voltage, referred to as capacitor divider type.