JKW58 Reactive Power Factor Controller is a special auxiliary product for low voltage electronics energy conservation systems; it can be equipped with different modes of capacitor distributing system. It concentrates the latest techniques in the world on one body, with the excellent advantages of light, delicacy, and good appearance as well as its complete range of functions, rather strong anti-interference ability, stable & reliable operation and accurate compensation, so it is the preferred products of electronics energy conservation systems.  
 
2.  Main Features
A)  Owns rather strong anti-interference ability & stable and reliable operation because of adopting advanced microcomputer controlling chips.
B)  It is very convenient to adjust the power factor, delay time, over-voltage protection, channel of controlling, current mutual inductor ratio, capacitance of capacitor and rated voltage parameter through the operation manual keys.
C)  With LED display function, it is easily to display line power factor, current mutual inductor's current and line voltage in the screen.
D)  All the preset parameter still in storage memory in case of abrupt power broken, and the control can run automatically once the power is switched on.
E)  Automatically identifying & changing the pole of current, it does good help to debugging & operation.
F)  The controller can't compensate automatically when the line voltage between the value of Over-voltage protection value and Over-voltage protection value-6V.
G)  Collocate the capacitor as 1:1:1,1:2:2,1:2:3,1:2:4 according the demands and with manual operation style, it can be used in different installation circumstances.

JKW reactive power auto compensation controller is suitable for self adjust capacitor compensation device in low voltage distribution, increase the efficiency of the power transformer, reduce line loss, and improve voltage quality, on finial aim it will increase the economic and social benefits.
Adopt AC sampling technology digital integration, filtration, not sensitive to the harmony wave regard the reactive power as controlling physical quantity, it has high control precision without input and cut off shaking.

The operation of the full digital of control parameter, easy to use put in right place in one step, and the data are not lost to have a power failure
Adopt and optimize the excellent control scheme automatically, reduce the times of input and cutoff, improve the service life of system strong anti interference ablibity can resist 2000V interference pulse from power direct and not crashing, does not lose the data, it is reliable to run steady.

Basic data:
Rated voltage: AC 380/AC 220V 10%
Rated current: AC 0-5A
Rated frequency: 50HZ 5%

Control data:
Sensitivity: 100mA
Target: COS
Setting: 0.70-0.99
Step length: 0.01
Factory setting: 0.98
Cut off delay dynamic state: 100mS-30S
Static state: 1-250S
Over voltage protection: 380-500V/230-260V
Step length: 1V
Return different: 6V
Under voltage protection: 340V/180V
Return different: 6V
CT variation: 50/5A-3000/5A
Step length: 1
Factory setting: 500/5A
Capacitor capacity: 0-99kvar
Every step factor setting: 10kvar
Contractor capacity: Dynamic state
Output of each branch: DC12V*50mA
Static output every step: 380v*7A/200V*5A
Measure accuracy:  
Voltage: 1.0% current 1.0%
power factor: 1.0%
reactive power: 2.0%
Size: 113*113mm.