WGK series reactive power compensation controller adopts digital design and AC sampling algorithm. It is equipped with dot matric LCD HMI and standard RS-485 port for supporting Modbus-RTU protocol.
Controller model | WGK-31-603-12A | WGK-31-603-12B | WGK-31-603-21B | |
Switching mode | Contactor | ● | ― | ― |
Composite switch or Thyristor | ― | ● | ● | |
Compensation type | Common compensation | ● | ● | ● |
Hybrid compensation | ● | ● | ● | |
485 communication | ● | ● | ● | |
Maximum number of compensation circuits supported | 12 | 12 | 21 | |
Installation dimension | Panel size | 120*120 mm | ||
Hole size | 111*111 mm |
Note: the “●” indicates that it has the function, and the “-” indicates that it does not have the function.
Main features
● Fully digital design, using AC sampling algorithm
● Human-machine interface adopts four-digit LED digital tube display or large-screen LCD Chinese liquid crystal display
● Modular assembly, streamlined appearance design
● With RS-485 standard bus interface, support Modbus-RTU communication protocol
● Real-time display of voltage, current, power factor, active power, reactive power, harmonic voltage, harmonic current, frequency, capacitor switching status, temperature and other parameters
● Harmonic protection function
● Adjust the target power factor cosφ within the range of 0.80 (lag)-1-0.80 (lead)
● Manual/automatic switching for selection
● Support equal capacity, coding and fuzzy control switching mode
● When the power supply of grid is interrupted for more than 15 ms, the voltage loss is released
● The output capacity of each output circuit can be set at the same time
Main technical parameters
● Display mode: LCD
● Sampling voltage: 400V or 220V
● Working voltage: AC220 V
● Rated number of circuits: 12 circuits/21 circuits
● Rated input: 5A
● It has two working modes of manual compensation and automatic compensation
● It has the function of harmonic measurement and protection
● It has RS-485, Modbus-RTU standard field bus communication interface (optional)
● Installation method: panel installation
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