Capacitive-type external voltage sensor used for circuit breaker switch
A circuit breaker switch and voltage sensor technology, applied in the direction of measuring current/voltage, only measuring voltage, instruments, etc., can solve the problem of general anti-overvoltage impact, anti-overcurrent impact and anti-harmonic impact performance, inconvenient installation and replacement, etc. Affect work efficiency and other issues, achieve the effect of less electromagnetic field interference, simple structure, and improve work efficiency
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[0017] In order to make the purpose of the invention, technical solutions and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods;
[0018] In the accompanying drawings: a capacitive external voltage sensor for a circuit breaker switch, including a fixed base 9 and a shielded twisted pair 10; it is characterized in that: the fixed base 9 is provided with three phase zero-sequence integrated sensors, They are respectively connected to the A-phase, B-phase, and C-phase circuits; the phase zero-sequence integrated sensor includes a housing 2, the upper end of the housing is provided with a high-voltage end insert 1, and the inside of the housing 2 is provided with a high-voltage end phase-sequence collector. Propylene capacitor 4, high-voltage end zero-sequence polypropylene capacitor 5; the lower end of the high-voltage end p...
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