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
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