Paralleling reactor compensation loop of transformer substation and compensation method of paralleling reactor compensation loop of transformer substation
A technology of compensation circuit and compensation method, which is applied in the direction of emergency protection circuit device, reactive power compensation, circuit device, etc. used to limit overcurrent/overvoltage, and can solve bus side oscillation, bus short circuit, bus voltage change high voltage fuse Fuse and other problems to achieve the effect of protecting system safety, reducing overvoltage, and increasing system capacitance to ground
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Embodiment 1
[0017] like figure 1 As shown, a shunt reactor compensation circuit of a substation provided in this embodiment includes an empty bus 1, and the empty bus 1 is respectively connected to the first switch 2 of the vacuum circuit breaker and the second switch 7 of the vacuum circuit breaker; Wherein the first switch 2 of the vacuum circuit breaker is connected to one end of the shunt reactor 4 through the first cable 3, and the other end of the shunt reactor 4 is three-phase short-circuited as a neutral point; the shunt reactor 4 and the turns The inter-turn arrester 6 is connected in parallel, one end of the turn-to-turn arrester 6 is connected to the arrester 5 circuit, and the other end of the arrester 5 is grounded; the second switch 7 of the vacuum circuit breaker is connected to the RC absorber 9 circuit through the second cable 8 connected, and the other end of the RC absorber 9 is grounded.
[0018] The RC absorber 9 includes a 20Ω resistor 10 and a 0.2 μF capacitor 11. ...
Embodiment 2
[0025] like figure 1 As shown, the shunt reactor compensation circuit of a substation provided by this embodiment includes an empty bus 1, and the empty bus 1 is connected to the first switch 2 of the SF6 circuit breaker and the second switch 7 of the SF6 circuit breaker respectively; Wherein the first switch 2 of the SF6 circuit breaker is connected to one end of the shunt reactor 4 through the first cable 3, and the other end of the shunt reactor 4 is three-phase short-circuited as a neutral point; the shunt reactor 4 and the turns Inter-turn arrester 6 is connected in parallel, one end of said turn-to-turn arrester 6 is connected to arrester 5 circuit, and the other end of said arrester 5 is grounded; the second switch 7 of said SF6 circuit breaker passes second cable 8 and RC absorber 9 circuit connected, and the other end of the RC absorber 9 is grounded.
[0026] Described RC absorber 9 comprises the electric capacity 11 of the resistance 10 of 50 Ω, 0.6 μ F, the resist...
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