1)all-digital design and AC sampling 2)Man-machine interface using four LED disply 3)it has harmonic measuring and protect
Technical Parameter
Environmental requirement
Height: ≤2500m
Operating temperature: -20°C~+60°C
Storage temperature: -25°C~+70°C
Operating in the environment of no corrosive gas, no conductive dust and no explosive and flammable medium. The Installation site should be no violent vibration and erosion of snow and rain
Measured data
Measuring voltage: 400V
Measuring cuttent:0~6000A
Sensitivity :120mA(twice)
Power factor measurement:lag 0.200 ~ahead 0.200
Total harmonic distortion: 0.0~100.0%
Input /Output Signal
Sampling voltage: line voltage
Current Sampling: bus-bar current transformer twice 0~5A
Control output: Connection Point of electrical equipment 5A/250V Resistive
Sampling voltage isn't the same as the current sampling
Display performance
Digital data display data display refresh cycle≤1s
Measuring accuracy
Voltage ±0.5%
Electric current ±0.5%
Power factor ±1.0%
The statistics above is getting by 10 minutes' preheating of controller and calibration within one year.
Setting data
Rated transformation ratio: 1~1200(ratio)
Delay Time: 5s~100s
Target COSφ:lag 0.80~ahead -.80 step length 0.01
Overvoltage setting:400V~480V step length 2V
On and off limit:0.5~1.2(setting value is on limit value) step length 0.1
Off limit = 1.2 - current setting
Harmonic protection: Hv: 0.0%~50.0%
Output group count: 2~12
Capacitance preset: 0~999Kvar/group
Reliability
Mean Time Between Failures(MTBF) > 25000 hours
JKWB Low-voltage Reactive Power compensation controller
