The complete set of low-voltage static reactive power compensation equipment (rated voltage ≤ 1kV) is mainly used for reactive power compensation in power frequency 50Hz distribution systems. It achieves power factor improvement (target value above 0.95) by fixing or delaying the switching of capacitor banks, and is suitable for scenarios with small load fluctuations. Its core functions include:
Line loss reduction: After compensation, the line loss reduction rate can reach 8% to 15%
Voltage stability: Control voltage fluctuations within ± 5%
Equipment protection: Suppress harmonics (reactance rate of 4%~7%) and extend the service life of electrical equipment
Main circuit components
Self healing capacitor: metalized thin film structure, capacity range of 5-50kvar
Series reactor: suppresses harmonics of 5 or more, with a reactance rate of 4%~7%
Mechanical switching switch: contactor life ≥ 100000 times, response time ≤ 100ms
Control system
Composite controller: supports voltage/reactive power dual parameter detection, with overvoltage lockout function (action threshold 235V ± 5%)
Protection unit: including overcurrent, overtemperature, PT disconnection protection
Application scenarios
Light industry: production lines with stable loads in textile factories, food processing, and other industries
Commercial buildings: centralized compensation for lighting systems in shopping malls, office buildings, etc
Agricultural power distribution: seasonal load scenarios such as irrigation pump stations
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