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Introduction:
RXZNG Series and RXZNF Series intelligent combined low-voltage power capacitor is a new generation 0.4KV low-voltage reactive-load compensation equipment, which reduces energy consumption, improves power factor and improves electric energy quality. It mainly consists of a measurement control display module, combination switch unit, breaker protection unit and a 0.4KV low-voltage power capacitor with a temperature sensor. Integrated structure is adopted by the device to replace low-voltage complete equipment composed of complicated mode of wiring and dispersed components such as general intelligent controller, fuse, combination switch or alternating current contactor, thermal relay, low-voltage power capacitor and indicator lamp, thus to ensure simple wiring, easy installation and commission, and convenient maintenance. Combined low-voltage power capacitor can be used as a unit set and also on-line applied with multiple units through networking. Our reactive-load compensation measuring and control equipment can be selected to match in case of high compensation capacity and the need of display the parameters such as voltage, current, power factor, reactive and active power, compensating current and etc.
Environmental Conditions
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Ambient temperature: -25℃~+60℃ Relative humidity: 30%~85%RH Altitude: ≤2000m
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Power Supply Conditions
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Rated voltage: 220V~450V Voltage deviation: ±5% Harmonic voltage: Sine wave, with total distortion rate no more than 5% Working frequency:50HZ
Harmonic current: The allowable harmonic current at the point of common coupling shall not exceed the value required in the standard BG/T14549-1993. Power consumption: <0.2W/1kvar
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Electrical Safety
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Electrical clearance, creepage distance, insulation strength, safety protection, short circuit strength, as well as sample circuit protection and control circuit protection conform to the requirements of relevant clauses in the electric power industry standard of the People’s Republic of China DL/T842-2003 “Ordering Specification for Low-voltage Shunt Capacitor Installation”.
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Measurement Error
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Voltage: ≤±0.2%; Current: ≤±0.2%; Power: ≤0.2%; Power factor: ±1%; Temperature: ±1℃
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Protection Error
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Voltage: ≤0.5%; Current: ≤0.5%; Temperature: ±1℃; Time: ±0.1s
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Reactive Compensation Parameters
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Reactive compensation error: ≤50% of the minimum capacitor capacity;
Capacitor switching interval: >10s, to be set between 10-180s; Reactive capacity: 5kvar, 10kvar, 20kvar Networking: ≤32 sets |
Reliability Parameters
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Control precision: 100%;
Allowable switching times: 1 million times; Attenuation rate of running time of capacitor capacity: ≦1%/year; Switching attenuation rate of capacitor capacity: ≦0.1%/10,000 times; |
Main Technical Parameters
Working Environment
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Ambient temperature: -25℃~55℃
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Relative humidity: 20%~90%RH @40℃
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Altitude: ≤2000m
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Other requirements: free of flammable and combustible medium, conducting dust or corrosive gas.
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Working Power Supply
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Working voltage: 380V±20% Frequency: 50Hz Distortion rate of voltage: ≤20%
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Power consumption: ≤3W
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Measurement accuracy
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Voltage: ±0.5%
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Current: ±0.5%
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Power factor: ±1%
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Reactive power: 1%
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Control accuracy
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Power factor: ±1%
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Reactive power: minimum capacitor capacity±120%
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Compensation Type
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Model and Specification
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Overall Dimension (foot stand included) L ×W×H (mm)
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Installation Dimension(mm)
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Three-phase joint compensation
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RXZNG/450/10(5+5)
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400×80×225
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370×50
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RXZNG/450/15(10+5)
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400×80×225
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370×50
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RXZNG/450/20(10+10)
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400×80×245
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370×50
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RXZNG/450/30(15+15)
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400×80×275
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370×50
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RXZNG/450/30(20+10)
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400×80×325
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370×50
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RXZNG/450/40(20+20)
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400×80×325
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370×50
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Split-phase compensation
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RXZNF/250/5
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400×80×225
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370×50
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RXZNF/250/10
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400×80×245
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370×50
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RXZNF/250/15
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400×80×275
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370×50
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RXZNF/250/20
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400×80×325
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370×50
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