Low Voltage Reactive Power Compensation Controller
JKW-RS
The JKW series low-voltage reactive power compensation controller (hereinafterreferred to as the controller) is a new generation of low-voltage reactive power compensation controller designed and developed based on relevant national technical standards, regulations, and actual user requirements, using dedicated power parameter acquisition chips and MCU processors. The product has a beautiful and elegant appearance, and is easy to install and use. Realize human-machine dialogue through digital display and buttons. Connect to the composite switch through 485 communication. Controlling physical quantities includes voltage, current, and power factor. Adopting AC sampling technology is particularly suitable for situations with large power factor variations. Low number of actions and high control accuracy.
1. Obtain voltage, current, power factor and other data through communication sampling.2. Dynamically display the various parameter values of power distribution, with simple and fast parameter settings, and the set parameters will not be lost when the power is turned off.3. Automatically detect the number of composite switches and other information, and control the switching of composite switches according to the reactive power parameters of the power grid.4. It has overvoltage, undervoltage, voltage warning, undercurrent, and overtemperature. When the grid parameters exceed the set limits, the controller quickly cuts off the composite switch that has been put into operation and locks the output to protect the safe operation of the composite switch and extend its service life.5. Using comprehensive calculations of voltage, current, power factor, reactive power, etc., voltage hysteresis is involved in control judgment to make compensation more accurate and prevent switching oscillation.6. Sampling the above criterion values at multiple points within the action delay time, and judging the reactive power trend flow based on the values of each point, avoids the judgment error caused by single point sampling of action points in conventional controllers. In situations where the power factor changes greatly, it can accurately determine the required reactive power compensation and compensation direction (switching on or off).7.It has manual/automatic switching function. When set to automatic mode, the input or output of the composite switch is controlled based on the comprehensive factors of voltage, load, power factor, and reactive power deficit. When set to manual mode, the composite switch can be manually operated to switch on or off, which facilitates factory debugging and switching of the composite switch. It can simulate switching in both manual and automatic modes.8.Principle of switching: The cyclic switching method is used to extend the service life of the composite switch.Product Model:explain:Mixed compensation is suitable for reactive power compensation in three-phase unbalanced load areas, controlling the combination of sub compensation and decompensation switches.Compensate reactive power suitable for three-phase balanced load locations and control the co compensation composite switch.Usage environment:1. Working temperature:- 20℃-60℃2. Relative humidity: ≤ 90% (20℃)3. Atmospheric pressure: 79.5-106.5kPa4.Altitude: ≤ 2000m5. Protection level: IP30- Panel IP406. Installation environment: Indoor7. There are no flammable or explosive media present, and no conductive dust or corrosive gases present.
1. Measurement accuracy:
Voltage: ≤± 1% (within the range of 80% to 120% rated voltage)
Current: ≤± 1.0% (within the range of 10% to 100% rated current)
Power factor: ≤ ±1.5%
Reactive power: ≤ ±2%
Temperature: ≤ 1℃
Sensitivity: ≤ 200mA
2.Output mode: RS485 communication, controlling our company's composite
switch
3. Power supply conditions:
Working voltage: AC 220V (separately supplemented) or 380V (jointly
supplemented)
Voltage deviation: ± 20%
Sampling current: ≤ 5A
Power consumption:< 5W
Rated frequency: 50Hz ± 5%
Input impedance: ≤ 0.2Ω
4. Number of networked units: JKW-RS co compensation controller can be connected to ≤ 30 co compensation composite switches. JKW-RS hybrid compensation controller can connect up to 10 sub compensation composite switches, with a total number (total compensation+sub compensation) of up to 30 units.
5.Execution standards: JB/T9663.
