General
JKW5 series reactive power autocompensation controller is used for the automatic regulation for
capacitor compensation devices of low voltage distribution system (hereinafter referred to ass controller).
It makes the power factor reach user's preset state, to enhance the utilization efficiency of power
transformer, reduce line loss and improve the voltage value of power supply, thereby to increase the
economic benefit and social benefit.
The reactive power auto-compensation controller is the auxiliary product for low voltage capacitor screen. According to the different demands of user, the company developed successfully the JKW5C,JKW2B,JKW58 type of intelligent controller series; number of the channel controlled is 4,6,8,10and 12 available. All of these device are controlled by the microcomputer, with the advanced technology, they have complete range of functions, rather strong anti-interference ability, stable and reliable operation, accurate compensation and nicely appearance, so they are the preferred products of capacitor screen manufacturer
Technical parameter:
Basic parameter:
Rated voltage:AC380/AC220V
±10%
Rated current:AV-5A
Rated frequency: 50Hz
±5%
Control parameter:
Sensitivity: 100mA
AimCos
Ф preset:0.70-0.99; Step 0.01;ework preset:0.98
Delay for switching:1-250s
Over-voltage protection:380-500/230-260V; step:1V; Return difference:6V
Under-voltage protection:340/180V; return difference 6V
CT variety:50/5A-4000/55A
Capacitance:0-125kvar,ex-work preset 10Kvar for each branch circuit
Contact capability: 380A*5A/220A*7A for each branch circuit.
Function characteristics
To calculate input-cut capacity of capacitor by reactive power, with high compensation precision.
High measuring precision for power factor, with wide display range.
Initial phase preset (software regulation synonymous end or current signal polarity).
With two types of control modes: power factor and reactive power.
With neighborly man machine interface, easy to operate.
Various control parameter can be adjusted through full digital display, visual and easy to use.
With two kinds of working modes: auto running and manual running.
With over voltage and under voltage protection functions.
With power down protection functions, data will not lose.
Low input impedance of current signal ≤0.01Ω
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