JKWD low-voltage reactive power compensation controller

1)it support capacity and fuzzy two compensation method 2)it has RS-485 interface 3)real-time display produce information

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:100V~500V

Measuring cuttent:0~6000A

Power factor measurement:Lag 0.200~ahead 0.200

power supply :220V±20%

frequency:45~65Hz

display active power :0~6553Kw

display reactive power :0~6553 Kvar

Total Harmonic voltage Distortion rate  :0.0~100.0%

Total Harmonic current Distortion rate :0.0~100.0%

the version number:2.0(the upgrade version number of device)

Input /Output signal  

Sampling voltage: voltage 0.4KV

Current Sampling:bus-bar current transformer twice 0~5A the bus current transformer twice 0~5A .

Control output: the relay stem nodes 5A/250V resistive (static)

12V 30mA/branch road(dynamic)

Sampling voltage isn't the same as the sampling current 

display performance

the data refresh cycle of LCD ≤1s.

The data of communication interface

Communication Interface:RS-485         Agreement : MODBUS communication agreement        

Communication Rate:4800~38400bps(no parity bit)

Measuring accuracy

Voltage :±0.5%        Active power:±1.0%

Current :±0.5%       Reactive power:±1.0%

Power Factor:±1.0%    Frequency:±0. 1Hz

The statistics above is getting by 10 minutes' preheating of controller and calibration within one year.

Setting data

Rated Transformation Ratio:01~1200(ratio )

Delay Time:5s~100s(static)        0.1s~30s(dynamic)

Setup ID Number:the device has communication interface ,and support MODBUS agreement ,this program including ID number and communication rate settings of the RS-485 communication interface , in the net system of the ID number is 001~255 ,and the communication rate is 4800~38400bps.

Target COSφ:Lag 0.80~ahead-.80   Step Length 0.01

Over Voltage 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%    Step Length 0.5%

Hi:0.0%~100.0%   Step Length 0.5%

ID Number Setting :001~255

Communication Rate:4800~38400bps

Capacitance Preset:0~999Kvar/group

Reliability

Mean Time Between Failures(MTBF) > 25000 hours

JKWD low-voltage reactive power compensation controller