Key Features
Product Overview
JKWFM series phase‑separated automatic reactive power compensation controller adopts a high‑performance microprocessor as its core component. It samples three‑phase voltage and three‑phase current signals. One single controller provides a maximum of 24 output loops, supporting full phase‑separated compensation, full common compensation, and combined common‑and‑phase‑separated compensation modes. It offers 12 capacitor combination modes (capacity coding), which users can select by modifying control parameters; settings are permanently saved after modification. It controls the switching of capacitor banks by combining fundamental power factor and fundamental reactive power, delivering stable switching without oscillation and low harmonic sensitivity. It can accurately display power data and perform switching control. Equipped with a large‑size character LCD screen, it features user‑friendly HMI, easy operation and elegant appearance. It is suitable for automatic reactive power compensation control in 0.4 kV systems.
Technical Parameters
Sampling Voltage: AC220V±20% (single‑phase voltage for 3‑phase 4‑wire system)
Sampling Current: AC0.1A‑5.0A; the controller enters under‑current status when current is below 100 mA
Operating Frequency: 45Hz‑65Hz
Under‑voltage Threshold: 180V
Dynamic Output: DC12V, 10 mA per channel; common terminal positive, output loop negative
Static Output: Passive relay output, 250V 3A
Alarm Signal: Passive relay output, 250V 3A
Total Power Consumption: ≤10W
Ingress Protection: IP30
Connection Type: Screw‑fixed plug‑gable terminal blocks
Mounting Method: Flush mounting with bar‑lock fasteners
Cut‑out Dimension: 139 mm × 139 mm or 113 mm × 113 mm
Overall Dimension: H145 mm × W145 mm × D72 mm or H122 mm × W122 mm × D99 mm
Wiring Drawing
Service Conditions
Altitude: not exceeding 2500 m;
Ambient temperature: ‑20 °C ~ 50 °C;
Air humidity: ≤50 % at 40 °C, ≤90 % at 20 °C;
Surrounding environment: no corrosive gases, conductive dust, flammable or explosive substances;
No severe vibration at the installation site.
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