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SVG Static Var Generators

Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications. They are a high performance, compact, flexible, modular and cost- effective type of active power filters (APF) that provide an instantaneous and effective response to power quality problems in low or high voltage electric power systems. They enable longer equipment lifetime, higher process reliability,improved power system capacity and stability, and reduced energy losses, complying with most demanding power quality standards and grid codes.

Key words:

Static Var Generator

Reactive Power Compensation

oem SVG Static Var Generators

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Product Description

Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications. They are a high performance, compact, flexible, modular and cost- effective type of active power filters (APF) that provide an instantaneous and effective response to power quality problems in low or high voltage electric power systems. They enable longer equipment lifetime, higher process reliability,improved power system capacity and stability, and reduced energy losses, complying with most demanding power quality standards and grid codes.

Low power factor increases the active energy losses of installations and affects their stability. It is typically caused by inductive or capacitive loads that demand extra reactive power to perform proper ly. Other contributors to low power factor are harmonic currents produced by nonlinear loads and the change of load in the electric power system.

SVG Working Principle

The principle of the SVG is very similar to that of Active Power Filter, When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. SVG detects the phase angle difference and generates leading or lagging current into the grid, making the phase angle of current almost the same as that of voltage on the transformer side, which means fundamental power factor is unit. YIY-SVG is also capable of correcting load imbalance.

SVG Technical Specifications

TYPE	Series 220V	Series 400V	Series 500V	Series 690V
Max neutral w ire current	5KVar	10KVar15KVar/ 35KVar/50KVar/ 75KVar/100KVar	90KVar	120KVar
Nominal voltage	AC220V(-20%~+20%)	AC380V(-20%~+20%)	AC500V(-20%~+20%)	AC690V(-20%~+20%)
Rated frequency	50Hz±5%
Network	Single phase	Three-phase three-wire/three-phase four-wire
Response time	<10ms
Reactive power compensation rate	>95%
Machine efficiency	>97%
Switching frequency	32kHz	16kHz	12.8kHz	12.8kHz
Feature selection	Deal with harmonics/Deal with harmonics and reactive power	Deal with harmonics/Deal with harmonics and reactive power/ Deal with harmonics and three-phase unbalance /Three options
Numbers in parallel	No limitation. A single centralized monitoring module can be equipped with up to 8 power modules
Communication methods	Two-channel RS485 communication interface (support GPRS/WIFIwireless communication)
Altitude w ithout derating	<2000m
Temperature	-20~+50°C
Humidity
Pollution level	Below level Ⅲ
Protection function	Overload protection, hardware over-current protection, over-voltage protection, power grid voltage imbalance protection, power failure protection, over-temperature protection, frequency anomaly protection, short circuit protection, etc
Noise	<50dB	<60dB	<65dB
Installation	Rack/wall hanging		Rack
Into the way of line	Back entry (rack type), top entry (wall-mounted)		Top entry
Protection grade	IP20

SVG Product Appearance

Model Range

Model	Compensation capacity(kvar)	System voltage(V)	*Size(D1W1H1)(mm)*	Cooling mode
SVG-5-0.22-2L-R	5	220	396×260×160	Forced air cooling
SVG-35-0.4-4L-R(Compact)	35	400	515×510×89	Forced air cooling
SVG-50-0.4-4L-R	50	400	546×550× 190	Forced air cooling
SVG-75-0.4-4L-R	75	400	586×550×240	Forced air cooling
SVG-100-0.4-4L-R	100	400	586×550×240	Forced air cooling
SVG-90-0.5-4L-R	90	500	675×495×275	Forced air cooling
SVG-120-0.69-4L-R	120	690	735×539×275	Forced air cooling

*The table is the standard specification, if you need other sizes, please contact us for customization

Model Range

Model	Compensation capacity(kvar)	System voltage(V)	*Size(D2W2H2)(mm)*	Cooling mode
SVG-5-0.22-2L-W	5	220	160×260×396	Forced air cooling
SVG-35-0.4-4L-W(Compact)	35	400	89×510×515	Forced air cooling
SVG-50-0.4-4L-W	50	400	190×513×599	Forced air cooling
SVG-75-0.4-4L-W	75	400	240×600×597	Forced air cooling
SVG-100-0.4-4L-W	100	400	240×600×597	Forced air cooling
SVG-90-0.5-4L-W	90	500	275×495×675	Forced air cooling
SVG-120-0.69-4L-W	120	690	275×539×735	Forced air cooling

The table is the standard specification, if you need other sizes, please contact us for customization

Model Range

Model	Compensation capacity(kvar)	System voltage(V)	*Size(D3W3H3)(mm)*	Cooling mode
SVG-50-0.4-4L-C	50	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-100-0.4-4L-C	100	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-200-0.4-4L-C	200	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-250-0.4-4L-C	250	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-300-04-4L-C	300	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-400-0.4-4L-C	400	400	Cabinet 1/ Cabinet 2 optional	Forced air cooling
SVG-270-0.5-4L-C	270	500	Cabinet 1	Forced air cooling
SVG-360-0.69-4L-C	360	690	Cabinet 1	Forced air cooling