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JKWF Intelligent reactive power compensation controller(LCD)

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Product Description

  • brief introduction
  • technical parameter
  • Product size

Application


1.Full digital design, AC sampling, human machine interface is large LCD display.
2.Designed with friendly human care, module asse-mbly,flow-line figure
3.It can display power factor, voltage, current, active power, reactive power, distortion rate of total voltage harmonic waves, distortion rate of total current har-monic waves, frequency average value, and capacitor switching status and etc. 
4.Parameter setting, to be instructed in Chinese words and English, digit input.
5.Capacitor control modes, two kinds: three-phase compensated together, combined compensation, you can set the control modes through the menu
6.Two working modes: Hand compensation/Auto Compensation
7.Parameter sampled is reactive power, it has the function of measuring harmonics and protections.
8.The controller provides RS-485, MODBUS standard communication port, used to connect with intelligent switchgear system.



Technical data


Ambient conditions

Altitude:≤2500mm

Working temperature:-20℃~+60℃

Storing temperature:-40℃~+70℃

The working site shall have no corrosive gas, no con-ductive dust, no flammable or explosive medium, also no severe vibration, and the snow, rain is not accessible.


Measurement data:

Measuring voltage:100V~290V

Measuring current: 0~6000A (primary) sensitivity: 50mA (secondary)

Measuring power factor: Lag 0.200 ~ Forward 0.200

Working source:220V±20%

Measuring frequency:47~53Hz

Display active power:0~6553Kw

Display reactive power:0~6553Kvar

Display the distortion rate of total voltage harmonics:0.0~100.0%

Display the distortion rate of total current harmonics:0.0~100.0%


Input / output signal:
    Sampling voltage: L1, L2, L3 phase voltage
    Sampling current: Bus phase current transformer secondary 0 ~ 5A
    Control output:
    Relay dry junction 5A / 250V Resistive (static)
    12V 30mA / branch (dynamic)
    RS485 network control
    The compensation controller sampling voltage and sampling current must be the same, and the same name end.


Display performance:
    LCD liquid crystal display data display refresh cycle ≤ 1s


Communication Interface Data:
    Communication Interface: RS-485 
    Protocol: MODBUS communication protocol
    Communication speed: 9600bps (no parity bit)


Measurement accuracy:
    Voltage: ± 0.5%                   Active Power: ± 1.0%
    Current: ± 0.5%                   Reactive power: ± 1.0%
    Power factor: ± 1.0%          Frequency: ± 0.1Hz


Setting data:
    Total counters ratio: 50 ~ 9999 (/ 5)
    Switch delay: 1-240s
    Input threshold: 0.7 ~ -0.7
    Cut-out threshold: 0.7 ~ -0.7 (cut-out threshold - investment threshold> 0.3)
    Overvoltage settings: 220V ~ 260V
    Undervoltage setting: 180V ~ 220V
    Tension upper limit: 1% ~ 99% (99% to turn off this protection)
    Fluffy ceiling: 1% ~ 99% (99% to turn off this protection)
    Capacitor setting: Refer to the product specification for the capacitor setting procedure


Installation Size

113*113mm