JKW series reactive power automatic compensation controller
Overview
JKW series reactive power automatic compensation controller is suitable for the automatic adjustment of capacitor compensation device of low voltage power distribution system (hereinafter referred to as the controller), so that the power factor can reach the user's predetermined state, improve the utilization efficiency of power transformers, reduce line losses and improve voltage quality of power supply , thereby improving economic and social benefits.
Standard： JB/T 9663-2013
Features
● Calculate switching capacitor capacity with reactive power, high compensation accuracy
● Power factor measurement has high accuracy and wide display range.
● Initial phase preset (software adjusts the same terminal or current signal polarity)
● Two control modes: power factor and reactive power, HMI is easy to operate
● Various control parameters are fully digital adjustable and intuitive to use
● With two working modes: automatic operation and manual operation
● With over-voltage and under-voltage protection
● With data storage protection when power off
● The input impedance of the current signal is ≤ 0.01Ω.
Model and Meaning
| JKW | □ | - | □ | / | □ |
| | | | | | | | | ||
| 1 | 2 | 3 | 4 |
| No. | Name | Meaning | |
| 1 | Reactive power compensation controller | JKG | |
| 2 | Enterprise code | 5C: equipped contactor | D5: equipped composite switch |
| 3 | Output Control step | optional step: 4、6、8、 | 10、12 |
| 4 | Rated voltage | AC 220V or 380V |
Technical Parameters
| Normal working and installation conditions | ||||
| Ambient temperature | -25°C ~ +55°C | |||
| Relative humidity | Relative humidity % 50% at 40°C ; ≤90% at 20°C | |||
| Altitude | ≤2000m | |||
| Environmental conditions | no harmful gas and steam, no conductive or explosive dustz no severe mechanical vibration | |||
| Power condition | ||||
| Rated voltage | 220V±20%; THDv≤5%； | |||
| Rated working current | 0~5A | |||
| Rated frequency | 50Hz | |||
| Performance | ||||
| Control step | 4, 6, 8, 1 0, 12 | |||
| Measure reactive power | 0-9999 kvar | |||
| Sensitivity | 60mA | |||
| Over-voltage protection | 230-260V or 380-500V | |||
| Output contact capacity | JKW5C static AC 220V 7A 50Hz | |||
| Output contact capacity | JKWD5 Dynamic DC 12V 12mA | |||
| Display power factor | Lag: 0.001~lead: 0.001 | |||
| Protection grade | shell IP40 | |||
| Switching delay | 1~250s | |||
| Putting in threshold | Lag: 0.70~lead: 0.70 | |||
| Cutting off threshold | Lag: 0.70~lead: 0.70 | |||
| Dimension and structure | Dimension WxHxD(mm) | Hole dimension WxH(mm) | ||
 |
JKW5C | three phase compensation(equipped with AC contactor) | 122x112x95 | 113x113 |
| JKW5C-6S | three phase compensation(equipped with AC contactor) | 122x112x95 | 86x86 | |
| JKWD5 | three phase compensation(quipped with composite switch) | 86x86x95 | 113x113 | |
| JKG2B | three phase compensation(equipped with AC contactor) | 170x110x100 | 162x102 | |
