Bus residual voltage holding device
The busbar residual voltage maintenance device is specially designed and developed for medium-voltage distribution systems. Based on “fast short-circuit fault detection technology” as its control foundation and employing an “electromagnetic repulsion fast circuit breaker” as its actuator, this device can, within 10 milliseconds of a branch circuit experiencing a short-circuit fault, automatically connect a “high-impedance reactor,” thereby boosting the voltage at the upstream busbar (PCC point) to 90%. This effectively isolates the faulty branch circuit from impacting the system-side power supply (busbar) voltage, significantly reducing the duration of voltage flicker.
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The busbar residual voltage maintenance device is specially designed and developed for medium-voltage distribution systems. Based on “fast short-circuit fault detection technology” as its control foundation and employing an “electromagnetic repulsion fast circuit breaker” as its actuator, this device can, within 10 milliseconds of a branch circuit experiencing a short-circuit fault, automatically connect a “high-impedance reactor,” thereby boosting the voltage at the upstream busbar (PCC point) to 90%. This effectively isolates the faulty branch circuit from impacting the system-side power supply (busbar) voltage, significantly reducing the duration of voltage flicker.
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Bus residual voltage holding device
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