Specifications
reactive power compensation
high equipment's reliability
adopt high speed noncontact switchgear
no inrush current impact
reactive power compensation
Characteristic
1. MPU is the test and control center. It detects on load reactive power on real time, calculates compensation capacity in high speed, judges and controls according to preinstall switching logic.
2. Adopt high speed noncontact switchgear made by thyristor, prompt response, high reliability, long service time
3. Automata tracking equipment switches capacitor bank constantly when system is zero transition, transient time is very short, implement dynamic compensation of reactive power in high speed
4. No inrush current impact during the process of switching capacitor, no service overvoltage, little switching destabilization, small capacitor bank decay, low error rate.
5. active response time is shorter than 20 millisecond, power factor dynamic compensation is higher than 0.95, inhibit voltage hunting caused by reactive change
6. contain harmonic-suppressed reactor inside, capacitor stress is small, no harmonic enlarge and resonance danger, work stably in distribution system with high content of harmonic
7. capacitor bank switching controller adopts code and cycle working method, switch rapidly and precise, reduce capacitor stress, increase capacitor’s service time
8. implementing split phase active compensation, suited for various kinds of unbalance impact load
9. Capacitor switching threshold and response time can be programmed, conversion between auto switching control and manual switching control, debug and test easily, wide applicability.
10. multi hardware and software anti-interference measures, high anti- interference ability, working stably
11. multi hardware protection such as self-test function, overvoltage protection and over current protection to confirm equipment operate stably
12. detect system voltage, current, active, reactive and power factor before/ after compensation automatically
13. digital control and parameter install, Chinese display LCD, RS485 interface, standard MODBUS communication agreement, computer remote monitoring, history recording function
14. multi module operate parallel, install and debug simply, maintain conveniently
Main technology parameter
item | index |
Rating compensating capacity | 100 - 2400 kvar |
mains voltage | three phase 380V/690V±15% |
mains frequency | 50/60Hz±2% |
Power factor | 0.85~1.0(it can be designed) |
Response time | 20ms-30s it can be chosen by need |
Power loss | Full load less than 1.5% rating compensation capacity |
Noise | ≤60 dB |
Protection function | Abnormal voltage protection; over load limitation; system error protection; system overheat protection |
External dimension mm | 1000×1000×2200 standard MNS machine cabinet×N |
Storage Temperature | -40~85 °C |
Serving temperature | -25~55 °C |
Relative humidity | less than 95%,not condensation |
altitude | Reduce rating capacity in higher altitude |