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The NWKL1 series smart low‑voltage reactive power compensation controller is designed for 380 V, 50 Hz distribution systems to automatically switch parallel capacitors, improve voltage quality and reduce energy loss. It provides combined reactive current and power‑factor control, real‑time display, strong anti‑interference capability, automatic cyclic switching, and over‑voltage reverse‑time protection.
The manual includes selection guidelines, normal operating and installation conditions, wiring diagrams, dimensions, ordering information, and detailed technical parameters such as voltage, current, power‑factor presets, and environmental limits. This manual is written in Chinese.
| Rated Voltage | 380 V AC ±20% |
|---|---|
| Power‑Factor Preset | 0.95 ~ 0.98 adjustable (factory preset 0.97) |
| Over‑Voltage Preset | 400 V ~ 470 V adjustable (factory preset 430 V) |
| Delay Time Preset | 10 s ~ 120 s adjustable (factory preset 20 s) |
| Output Contact Capacity | 3 A (resistive) at 380 V AC or 5 A at 220 V AC |
| Operating Temperature | -10 °C to +40 °C |
| Relative Humidity | ≤50 % at 40 °C, ≤90 % at 20 °C |
| Maximum Altitude | ≤2000 m |
The controller can operate from –10 °C up to +40 °C.
It supports up to 12 groups, with selectable configurations of 4/6, 8/10, or 12 groups.
Yes, it includes a function to switch between automatic and manual run modes.
The power‑factor preset can be set between 0.95 and 0.98, with a factory default of 0.97.