Lightning arrester discharging current monitoring system and method
A discharge current, monitoring system technology, applied in the direction of measuring current/voltage, instruments, measuring devices, etc., can solve problems such as circuit damage, and achieve the effect of improving reliability and reducing acquisition costs
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[0045] The present invention will be further described below in conjunction with the accompanying drawings.
[0046] Such as figure 1 and figure 2 As shown, the present invention discloses a lightning arrester discharge current monitoring system, including an air-core coil 1, a passive integrator 2, an integrated electro-optic modulator 3, a light source 4, a first optical fiber 5, a second optical fiber 6, a photodetector 7, Collection device 8 , upper electrode 9 , lower electrode 10 , optical waveguide channel 11 , lithium niobate crystal 12 .
[0047] The air-core coil 1 is used for non-contact current measurement and is placed outside the grounding lead. In order to ensure the consistency of the measurement of the air-core coil 1, it is made of a printed circuit board, which avoids the measurement dispersion caused by the uneven winding quality of the wire-wound air-core coil. The air-core coil 1 converts the arrester discharge current signal into a proportionally red...
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