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electrical protective devices,
dc power contactor
16-Digit Micro Low Voltage Protection Devices , Reactive Power Automatic Compensation Controller
RPCF series reactive power automatic compensation controller, based on 16-digit micro processor, adopt Fourier progression decompose arithmetic, to get power fundamental wave data, the controller specially used for compensating reactive power in the power system with harmonic wave source. All components are of surface mounting technology, regurgitant solder, multi-stage inspection, these will make all RPCF controllers work steadily and reliably. RPCFC type has RS485 port, standard protocol. It can be used as network meter.
1. On basis of fundamental wave reactive power, calculate the reactive power to be switched on, it can avoid switching shock of any forms, it can accurately display the power factor of system
with harmonic wave.
2. High measurement accuracy, wide display scope.
3. Real time display general power factor and fundamental wave PF.
4. Real time display the distortion rates of voltage and current.
5. Total 12 kinds of coding output can be chosen.
6. 16 circuits of output at maximum.
7. Human friendly interface, convenient operation.
8. Various control setting can be adjusted digitally, directly and easily.
9. Automatic and manual operations, two modes provided.
10. Over voltage and absent voltage protection provided.
11. Protection against superscale of harmonic wave voltage.
12. Data not lost even if power shut down.
13. Current signal input resistance ≤0.01Ω.
14. Communication function ((MODBUS-RTU RS485) provided.
15. Compensating power factor able to be adjusted:0.70 lag~0.7 forward.
Main Technical Parameter
1. rated working voltage:380V,220V,110V±10%
2. rated working current:5A
3. rated working frequency:45-65Hz
4. power factor displayed:lag 0.001-forward 0.001
5. measured reactive power:0—9999Kvar
6. measured active power:0—9999KW
7. absent voltage protection:AC300V or AC 180V
8. capacity of output contact:AC 220V 7A
10. display mode:4 digit red LED
11. total consumption:10VA
12. Outline size:144mm×144mm or 122mm×122mm or 170mm×110mm
13. Opening hole size:138mm×138mm or 113mm×113mm or 162mm×102mm
14. Mounting mode: plug-in mounting by inverse thread screw or railwaymounting.
15. value setting scope:
a) Auto/Manual Automatic / Manual operation
b) Power factor 0.70ind-0.70cap
c) switching delay 2-200 S
d) capacitor discharging duration 0-480 s
e) over voltage Line voltage 400-450V(phase voltage: 230-265V)
f ) distortion rate 0.1-30.0%
g) CT transformation ratio 50-4000/5
h) C1 capacity 0.1-100.0Kvar
i ) Output code Pr-01-12
j ) Output circuits 1-16 circuits
k) communication address 1-255
l ) communication speed 4800,9600,19200,115200