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YD-9CK-100 low voltage reactive power compensation controller

YD-9CK-100 intelligent low-voltage reactive power compensation controller (referred to as controller) is a new generation of products developed by the company on the basis of absorbing many reactive auto-compensator technologies at home and abroad, with new styles and full functions. Flexible, full Chinese LCD menu, easy to operate. The controller adopts RS-485 communication to connect with the intelligent integrated power capacitor produced by our company. It has high integration degree, beautiful appearance, universal instrument size, convenient installation and extremely simple wiring. It can greatly improve the production efficiency of the whole cabinet and improve the overall product quality. .

Product parameters

Display function

The Chinese liquid crystal display method can display up to 30 intelligent integrated capacitor states, which can display various operating parameters and setting parameters.

The touch button method is beautiful and generous.
Parameter setting function
Settings for protection settings such as overvoltage protection value, overvoltage lockout value, and undervoltage protection value;
Setting of the switching limit such as delay time, input, and cut-off threshold;
Sampling current transformer ratio setting.
Measurement function
The polarity of the sampling transformer is automatically determined, and the polarity requirement is not required when accessing;
Distribution voltage, current, power factor, active power, reactive power measurement.


control function
Automatic and manual control of the switching of the capacitor. In the automatic control, the switching is performed according to the controlled physical quantity - reactive power;
The capacitors with the same capacity work according to the principle of cyclic switching, and the capacitors with different capacities are coded and switched according to the reactive power shortage;
Control up to 30 intelligent integrated power capacitors simultaneously.
Protective function
Harmonic protection, overvoltage protection, overvoltage blocking, undervoltage protection, phase loss protection, and undercurrent protection of power distribution system.
Signal function
The signal of each capacitor is put into operation and returned, and the capacity signal of each capacitor is displayed.
The distribution parameter over-limit signal (overvoltage, undervoltage, undercurrent, etc.) is displayed;
The controller itself or the capacitor is faulty.

Use environment

Working temperature: -20%~60%
Relative humidity: ≤90% (20 °C)
Atmospheric pressure: 79.5-106.5kpa
Altitude: ≤3000m
There is no flammable and explosive medium, and there is no conductive dust and corrosive gas.

Technical Parameters

Power supply condition
Working pressure: AC 220V (sub-complement) or 380V (total)
Voltage deviation: ±20%
Sampling current: ≤5A

Power consumption: <5W
Rated frequency: 50Hz ± 5%
Input impedance: ≤0.2Ω

Measurement accuracy

Voltage: ≤ ± 0.5% (in the range of 80% ~ 120% of the rated voltage);
Current: ≤±1.0% (in the range of 2%~150% rated current);
Power factor: ≤±1.0%
Reactive power: ≤±2%
Temperature: ≤1°C

Output method

Communication control output, control of the company's intelligent integrated capacitors.
Number of networking stations: distribution ≤ 10 units Total number of stations (total + supplementary) ≤ 30 units

Product model and size

Mechanical installation: Open the square hole of 113*113mm on the screen cabinet, push the product into the square hole from the front of the screen, insert the fasteners into the installation slot, and tighten the screws to fix it on the screen.

Electrical wiring: electrical wiring according to the electrical wiring schematic diagram on the controller shell and the output terminal to define accurate wiring

Product wiring diagram

Product wiring diagram
Mixed electrical wiring diagram

Common electrical wiring diagram

Send Inquiry

If you have any enquiry about quotation or cooperation,please feel free to email us at yidek@126.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

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