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What kind of overvoltage protection is built in the vibrating wire piezometers?

April 26, 2017built overvoltage piezometers Vibrating wire

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What kind of overvoltage protection is built in the vibrating wire piezometers?

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A plasma surge arrestor is wired in parallel with the coil (which is used to pluck the wire). The nominal impulse discharge current 8-20 microsec interval is 10 KA. Impulse spark-over voltage at 1Kv/ microsec: 700 V.