The power factor controller DNKL-12J/D paralleled with capacitor to control the automatic switching of capacitor compensation, improve the power factor and power transformer utilization efficiency and reduce the loss.
The power factor controller calculates the active and reactive power in mains from the measured current and voltage. The intelligent control algorithm optimizes the switching sequences and guarantees for short regulation times with minimum number of switching. At the same time, switching operations are equally shared among the available capacitor branches where possible. The integrated connection control immediately detects in which phases voltage and current are measured, and adapts the entire system automatically. The very low current threshold of 10mA allows for very reliable and exact PF control. 1A as well as 5A current transformers can be used without additional manual adjustments. The power supply covers a voltage range of 100V-220V.
Operation voltage: 100-260V AC/ 50/60Hz, 100-260V DC
AC voltage sampling: 100V/380V
AC current sampling: 5A/1A
No. of output: 12
Output rating for contactor: 250VAC, 5A
Output rating for thyristor switch: 12VDC, 50mA
Communication interface: RS485
Communication protocols: Modbus
Baud Rate: 2400,4800,9600bit/s
Power consumption: ≤15VA
Protection class: IP40
Display:
4.3' color panel, UI design
Power Factor, Voltage, Current, active power, reactive power, apparent power, mains frequency
ambient temperature and humidity
2nd to 50th harmonic voltage and current column charts
system voltage and current oscillogram
Other Features:
multi-function for both contactor and thyristor switch
self protection during insuffient or excessive voltage and current
self protection if phase shortage, over load, over temperature and over harmonic voltage
record for every time alarm information and every month the capacitor operation situation
setting the capacitor switching and power operations by a branch, automatically select the appropriate capacity of the capacitor
all the data will be kept even power failure
RS485 port for PC or remote control unit