Quoted standards
JB7115-93 Low-voltage reactive power local compensation device
GB/T15576-2008 General technical condition of low-voltage reactive power compensation device
DL/T597-1996 Technical condition of low-voltage reactive power compensation controller orders
JB/T9663-2013 Low-voltage reactive power automatic compensation controller
Execution standards
Altitude: ≤2500m
Working temperature: -25℃~+55℃
Storage temperature: -25℃~+90℃
No Corrosive gas, no conductive dust, no inflammable and explosive media exist, no severe vibration, no snow and rain erosion at stall place
Measuring data
Measuring voltage: 100V~290V(phase voltage)
Measuring current: 0~5A
Current ratio: 1:1200
Sensitivity: 50mA( 2times)
Measuring power factor:lagS 0.200~lead 0.200
Working voltage: 220V/380V
Measuring frequency: 47~53Hz
Display active power: 0~6553kw
Display reactive power: 0~6553kvar
Display voltage total harmonic distortion: 0.0~100.0%
Display current total harmonic distortion: 0.0~100.0%
Input/output signal
Sampling voltage : L1、L2、L3 phase voltage
Sampling current: (Bus L1,L2,L3 phase current transformer 2times 0~5A)
Control output: DC12V±1V 30mA/支路(动态)Branch(Dynamic)
Sampling voltage and sampling current should be same phase
Display functions
Display refresh period≤1s。
Measuring precision
Voltage: ±0.5% Active power: ±1.0%
Current: ±0.5% Reactive power: ±1.0%
Power factor: ±1.0%
The above data is based on the controller being opened after 10 minutes, as well as the calibration of 1 years
Settings data
Current ratio: 01~1200
Response time: 20ms
Switching interval delay:0.1s~120s
Target COSΦ : lagSmore than 0.90~lead less than 1.00 Step length 0.01
Voltage settings: 240V~290V(phase voltage), or stop
Separate compensation capacitor groups setting:Loop Range:0~4(groups of each phase)
Three-phase compensation capacitor groups setting :
12Loop Range:0~12(groups of A,B,C three-phase)
Capacitor groups distribution: separate phase×3+three-phase groups≤loops(12,)
Capacitor preset:0~999kvar/组
Reliability:
Mean Time Between Failures(MTBF):>25000小时
The controller applies to many high precision switching conditions, such as high building, machinery, urban rail transit and other fast switching conditions.