Reactive power compensation controller

JKW-3FC Intelligent reactive power compensation controller with hybrid compensation

1. Power supply voltage: the rated value is AC 220V, and the fluctuation cannot exceed ±20%;
2. Ambient temperature: -25℃~55℃;
3. Relative humidity: the maximum relative humidity is 90% (at 20℃);
4. Altitude Height: no more than 2000m;
5. Environmental conditions: no explosive and flammable dangerous media, no gases that corrode metals and conductive dust that damage electrical insulation;

Detailed introduction

Main purpose and scope of application
JKW-3F series intelligent reactive power compensation controller (hereinafter referred to as the controller), adopts advanced high-speed microprocessor control technology, real-time sampling of three-phase voltage and three-phase current signals, and the compensation capacitor of the capacitor cabinet is adopted The control scheme of single-phase independent compensation plus three-phase simultaneous compensation is very suitable for the automatic control of reactive power compensation capacitor cabinets in low-voltage power systems with unbalanced three-phase loads. This product complies with: industry standard JB/T9663-2013 (our company is the main drafting unit of this standard).

Model and meaning

Working conditions
1. Power supply voltage: the rated value is AC 220V, and the fluctuation cannot exceed ±20%;
2. Ambient temperature: -25℃~55℃;
3. Relative humidity: the maximum relative humidity is 90% (at 20℃);
4 , Altitude: no more than 2000m;
5. Environmental conditions: no explosive and flammable dangerous media, no gases that corrode metals and conductive dust that damage electrical insulation;

Main technical parameters
1. Rated current: AC 0~5A;
2. Rated voltage: AC 220V±20%;
3. Contact capacity: dynamic DC12V/50mA (static AC220V/7A) per branch;
4. Current input impedance: ≤0.02Ω;
5. Shell protection grade: IP30;
6. Frequency: 50Hz;
7. Sensitivity: 20mA;
8. Insulation voltage: 690V;

Features
1. Real-time display of three-phase network conditions: including system voltage, system current, active power, reactive power, power factor, various control parameters, etc.
2. Automatically identify the polarity of the sampling signal, and there is no concern about the polarity of the wiring.
3. With setting parameter memory function, data will not be lost after power failure.
4. It has protection functions such as over-voltage and under-voltage, phase loss, etc.
5. With dual input threshold: it is required that the power factor is lower than the input threshold setting value and the reactive power is higher than the minimum set of capacitors before it can be input, effectively preventing switching oscillation.
6. It has a super-strong automatic optimization and switching function.
7. There is a settable re-investment lock time to ensure that the capacitor has enough discharge time before being turned on.
8. Various parameters are all digitally adjustable, which can be widely applied to different power grid conditions.
9. Strong anti-interference ability, can directly resist interference pulses from peripheral common mode amplitude 2000V.
10. The compensation scheme can be set as full single-phase compensation, single-phase compensation plus three-phase compensation, and full three-phase compensation.
11. There are static and dynamic output modes.

Factory setting values of various parameters

Code	meaning	Setting value	Adjustable range
P-00	Current polarity recognition method	AUTO	AUTO automatic/HAND manual
P-01	Power factor input threshold	0.95	Perceptual 0.800~1.000
P-02	Power factor cut off threshold	1	Perceptual 0.900~Capacitive -.900
P-03	Input delay	10s	0.1~100s
P-04	Cut-off delay	10s	0.1~100s
P-05	Overvoltage threshold	245V	220V~300V
P-06	Capacitor discharge delay	0	0~240s
P-07	Sampling current transformer ratio	500	5~9000
P-08	Compensation capacitor solution	3F07(2F06)	0F16-5F01(0F12~4F00)
C-01~C-12	Capacitance capacity of each branch controlled	5	0~200kvar

Main specifications and models

Product number	Hole Size	Sampling voltage	Signal frequency	Control output	monitor	Total Weight	Replace the old model
JKW-3FC-12D	113×113	Three-phase four-wire	50/60Hz	12 DC	Luminous Digital	0.9kg	JKWF12-DCS
JKW-3FC-12J	113×113	Three-phase four-wire	50/60Hz	12-way contacts	Luminous Digital	0.9kg	JKWF12-JCS
JKW-3FA-16D	139×139	Three-phase four-wire	50/60Hz	16 channels DC	Luminous Digital	0.95kg	JKWF18-DCS-16
JKW-3FA-16J	139×139	Three-phase four-wire	50/60Hz	16 contacts	Luminous Digital	0.95kg	JKWF18-JCS-16
JKW-3FA-19D	139×139	Three-phase four-wire	50/60Hz	19 DC	Luminous Digital	0.95kg	-

Wiring schematic diagram

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