Three Phase Unbalanced Automatic Regulating Device

Application
Three Phase Load Unbalance Automatic Regulating Device is developed by our company independently, which is a device to achieve the comprehensive treatment of a multiple power quality problems existing in a Low voltage distribution network through integration of multiple power electronics technologies. It can autobalance 3 phase power by means of intelligent control.
The device is suitable for the low voltage side of AC380V, 50HZ voltage system on the outdoor post transformer. It can improve effectively the power quality of Low voltage network, so as to solve the line loss caused by 3 phase imbalance, improving lines transmission capacity, enhancing the reliability of power grid. The product has the characteristics of good treatment effect, strong applicability and small size. Operation Principle
When Three Phase Unbalanced Auto. Regulating Device opening, it can real time measure system current by external Current Transformer (CT), and send the system current information to the internal controller for processing and analysis, finally to judge whether the system is in imbalance condition.
Meanwhile, it can calculate the current values needed each phase to be converted when the equilibrium state reaching, and then send the signal to the internal IGBT and drive its action, to absorb energy from Power Grid and control its transformation between 3 phase of A/B/C, bring the 3 phase current to a balanced state.Model GKPIQCT is an active power balance device, used for 3 phase power imbalance treatment, reactive power compensation equipment in 400V Low voltage distribution network.Environment condition
- Ambient temperature: max. +50°C min. -40°C
- Altitude: ≤1500m (according to GB/T3859.2 derating beyond 1500m )
- Wind speed: ≤35m/s
- Relative humidity: ≤95% at 25°C
- Air contamination degree: III degree
- Protection class: ≥IP54
- Earthquake intensity: ≤8 degree
- Ice thickness: ≤10mm
- No corrosive or flammable gas, no frequent vibration or explosive placeFeature & Index
- Distribution mode: Three phase Four wire system
- Neutral grounding mode: Direct grounding
- Installation site: Outdoor Post, Power Distribution Room, Box-type Substation
- Overload capacity: 1.2 times (Persisting 1min)
- Power loss: ≤2%(55kvar); ≤1%(110kvar)
- Noise: ≤60Db
- Communication Mode: GPRS wireless; RS485 (RTU protocol); Configured Wifi Module
- Mean Time Between Failures (MTBF):≥100,000 hours
- Max. Dimension(mm): 800*1000*450 (W*H*D)Technical DataItemParameterRated voltage400VInput voltage range230V~470VFrequency50HZFrequency range45HZ~55HZConnection3 phase 4 wire + PESingle rated capacity35kVA70kVA105kVA140kVAResponse Time≤5msPower Loss<3%Power factor≥0.98 (within capacity range)Split phase compensationFull power phase separation compensationProtectionOvercurrent, overheating, overvoltageOverall Dimension (mm)
(WxHxD)600x970x200600x970x410600x970x520Weight55KG80KG90KG120KGInstallationOutdoor post or Floor standingInstallation inclination<5°Cabinet materialStainless Steel 304#2B or Carbon Steel coatedCommunication interfaceRS485 / GPRS
Installation:
Wiring Layout:
The power line and sampling line of GKPIQCT series of outdoor hybrid compensator are both lower incoming line:Specification Power line (Copper wire)Sampling line (Copper wire)GKPIQCT-35M/0.4A,B,C:10mm2
N:16mm2
PE:10mm2A_S1,A_S2,B_S1,B_S2,
C_S1,C_S2
2.5mm2GKPIQCT-70M/0.4A,B,C:25mm2
N:35mm2
PE:16mm2GKPIQCT-105M/0.4A,B,C:35mm2
N:50mm2
PE:25mm2GKPIQCT-140M/0.4A,B,C:70mm2
N:50x2mm2
PE:25mm2
Main circuit and transformer wiring(GKPIQCT 3 Phase 4 Wire system):