The JKL8F-12 series intelligent reactive power automatic compensation controller can be used in any place that requires reactive power compensation control. All functions of the controller are controlled by a microcontroller, using advanced sampling circuits and algorithms, and have no impact on the testing of harmonics present in the power grid.

2. Main features
2.1. Adopting widescreen LCD display
2.2. Comprehensive control using two physical quantities, power factor and reactive power
2.3. Automatic operation, manual switching, parameter setting, and dynamic parameter display can be achieved through four key operations
2.4. Current input does not need to consider polarity automatic discrimination conversion
2.5. The number of cutting paths 1-12 can be freely selected and set by the user
2.6. When the power is lost after changing the set parameters, the set parameters will not be lost, the data will be permanently saved, and the parameters do not need to be reset when powered on
2.7. It can intuitively display five parameters including power factor, voltage, current, active power, reactive power, etc
2.8. When the grid voltage is below 300V or exceeds the set value, the capacitor bank that has been put into operation will be automatically and quickly (5 seconds) cut off step by step, and the voltage display value will flash
2.9. If the reactive power of the power grid is lower than the threshold for reactive power input, even if COSj is less than the set value, the compensation capacitor bank should not be used to avoid switching oscillation
2.10. When the secondary signal of the current transformer is less than 150mA, the input of the capacitor is blocked, and the already input capacitor group is gradually cut off according to the set delay, and the current display value flashes
2.11. In order to prevent capacitor switching overvoltage caused by incomplete discharge, when the switching action time interval of the same group of capacitors is less than the capacitor discharge time, they will not be put into operation. They can only be put into operation after the time interval is greater than 1 minute

3. Technical data
3.1. Working voltage 380V ± 15%
3.2. Working current 150mA-5A
3.3. Frequency 50Hz
3.4. Relay contact capacity 5A/250V 3A/380V
3.5. The switching and blocking time of capacitors in the same group is greater than 60 seconds
3.6. The input threshold is greater than the set value of the reactive power threshold
3.7. Cut off threshold greater than target COSj value
3.8. Maximum power loss of 15W
3.9. Open space size 113 × 113mm

4. Wiring diagram

5. External dimensions