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Three-phase Four-wire Wall-mounted Static Var Generator
China three-phase four-wire wall-mounted Static Var Generator for 380V/500V/690V systems. Dynamic reactive power compensation & load balancing, <10ms response, modular design. Improves power quality in industrial & commercial applications with unbalanced loads.
The Three-Phase Four-Wire Wall-Mounted Static Var Generator (SVG) provides dynamic reactive power compensation and load balancing for three-phase 380V, 500V, and 690V four-wire electrical systems. Utilising advanced DSP+CPLD digital control and a three-level topology, this SVG delivers precise and rapid compensation with a response time under 10ms. Its modular design enables scalable capacity through parallel connection, while the wall-mounted configuration simplifies installation and minimises space requirements. This SVG effectively compensates for both inductive and capacitive reactive power, addresses three-phase imbalances, and enhances overall power quality. Available capacities range from 15kvar to 120kvar, offering flexible solutions for diverse applications.
Model description:
| GY | SVG | 0.4 | 50K | / | 4L | W |
| Enterprise code | Static var generator |
Voltage level 0.22:220V 0.4:380V±20% 0.5:500V±20% 0.69:690V±20% |
Rated Capacity (kvar) 5/15/35/50/75/100kvar | 4L:Three-phase four-wire | W:Wall-mounted |
Features:
● Use DSP+CPLD all digital control core, three-level topology technology, advanced reactive power detection algorithm and PWM control strategy to achieve dynamic and accurate compensation of reactive power.
● Adopt modular design, which facilitates parallel connection of multiple modules, takes small space and is easy to maintain.
● The structural design of independent air ducts and independent warehouses ensures the stable operation of the equipment.
● Carry out full-range dynamic compensation for inductive reactive power and capacitive reactive power, and solve the three-phase unbalance problem at the same time.
● The dynamic response speed to the load is at the millisecond level, which can achieve dynamic and accurate compensation for the reactive power of impact loads.
Applications:
Three-Phase Four-Wire Wall-Mounted Static Var Generators are ideal for power quality improvement in various four-wire applications:
● Industrial Power Distribution: Stabilising voltage and improving power factor in four-wire industrial environments.
● Commercial Buildings with Unbalanced Loads: Correcting three-phase imbalances and reducing neutral current in four-wire systems.
● Data Centres and IT Facilities: Ensuring reliable power quality for sensitive electronic equipment in four-wire power distribution networks.
● Renewable Energy Systems: Supporting grid stability and power quality in four-wire systems with integrated renewable energy sources.
Three-Phase Four-Wire Wall-Mounted Static Var Generators offer a robust and efficient solution for optimising power quality and stability in three-phase four-wire electrical systems.
Technical Parameters:
| 220V series | 380V series | 500V series | 690V series | |||
| Altitude | < 2000m, above 2000m, derate according to GB/T3859.2 | |||||
| Ambient temperature | -20～+50℃ | |||||
| Relative humidity | ≤90%, no condensation on the surface when the monthly minimum temperature is 25℃ | |||||
| Pollution level | Level III below | |||||
| Operating Voltage | AC220V±20% | AC380V±20% | AC500V±20% | AC690V±20% | ||
| Working frequency | 50Hz±5% | |||||
| Rated compensation capacity | 5kvar | 15/35/50/75/100kvar | 90kvar | 120kvar | ||
| Grid structure | L/N | 3P3W/3P4W | ||||
| Number of units connected in parallel | Ulimited | |||||
| Overall machine efficiency | ≥97% | |||||
| On-off frequency | 32kHz | 16kHz | 12.8kHz | 12.8kHz | ||
| Function selection | Reactive power | Reactive po wer、Reactive po wer+imbalance | ||||
| Reactive power compensation rate | ≥99% | >95% | ||||
| Full response time | <10ms | |||||
| Noise | ≤60dB | ≤60dB | ≤65dB | ≤65dB | ||
| Control method | 2-way RS485 interface (supports GPRS/WIFI) | |||||
| Protection | Overload, software/hardware overcurrent, grid overvoltage and undervoltage, power failure, overtemperature, frequency abnormality protection, etc. | Overload, software/hardware overcurrent, grid overvoltage and undervoltage, grid voltage imbalance, power failure, overtemperature, frequency abnormality, shot circuit protection, etc. | ||||
| Installation method | Rack/wall-mounted | Rack | ||||
| Incoming line | Back incoming（rack type）、 upper incoming（wall-mounted） | Back incoming line | ||||
| Protection level | IP20 | |||||
Model& Specification:
| Models | ||||
|---|---|---|---|---|
| Model Number | Compensation capacity (kvar) | System voltage (V) | Dimensions (D*W*H) | Cooling method |
| GY SVG-0.22-5k/2L-R/W | 5 | 220 | 220*330*160mm | Forced air cooling |
| GY SVG-0.4-15k/4L-R/W | 15 | 380±20% | 460*490*89mm | |
| GY SVG-0.4-35k/4L-R/W | 35 | 380±20% | 460*490*89mm | |
| GY SVG-0.4-50k/4L-R/W | 50 | 380±20% | 500*510*190mm | |
| GY SVG-0.4-75k/4L-R/W | 75 | 380±20% | 500*550*240mm | |
| GY SVG-0.4-100k/4L-R/W | 100 | 380±20% | 500*550*240mm | |
| GY SVG-0.5-90k/4L-R/W | 90 | 500±20% | 495*675*275mm | |
| GY SVG-0.69-120k/4L-R/W | 120 | 690±20% | 495*675*275mm | |
Hot Tags: Three-phase Four-wire Wall-mounted Static Var Generator
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Wenzhou Bridge Industrial Zone, Beibaixiang Town, Yueqing City, Zhejiang Province, China
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