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Low Voltage Static VAR Generator

  • Low Voltage Static VAR Generator
  • Low Voltage Static VAR Generator
  • Low Voltage Static VAR Generator

Low Voltage Static VAR Generator

    Payment Type: L/C,T/T
    Terms of Trade: FOB,CFR,CIF,EXW
    Min. Order: 1 Set/Sets
    Delivery Time: 30 Days
    Packaging: wooden box
    Productivity: 1500 SETS/ YEAR
    Brand: FGI
    Transportation: Ocean,Air
    Place of Origin: China
    Supply Ability: 2000 SETS/ YEAR
    Certificate: CE,ISO 9001, ISO 14001, OHSAS 18001
    HS Code: 8543709990
    Port: Shenzhen,Qingdao,Shanghai

Basic Info

Model No.: FGSVG-L50/0.4-3H

Product Description

The dynamic reactive power compensation and harmonic control device independently developed by FGI adopts a three-level structure to reduce the voltage stress of a single IGBT, reduce du/dt, and improve the output waveform quality. The LCL filter circuit of Static Var Generator is used to effectively absorb high frequency harmonics. The response speed of Static Synchronous Compensator is fast and the total response time is about 10ms. The modular design of STATCOM which adopts static generator technology makes it easy to install and debug.

380V Voltage Class FGSVG STATCOM Compensator Main Power Topology

static var compensator design

Operating Principle

static var compensator circuit diagram

The basic principle of the FGSVG dynamic var compensator is to use a power-off electronic circuit device that can be turned off to form a self-commutated bridge circuit. The transformer or reactor is connected in parallel to the power grid, and the amplitude and phase of the output voltage of the bridge circuit are properly adjusted, or directly Control the output current, so that the circuit absorbs or emits reactive current that meets the requirements of the power grid, and achieves the purpose of dynamic reactive power compensation.

Zero load operation: U1=Us,IL=0,SVG neither absorbs nor generates reactive power.

statcom working

Output capactive reactive: U1>Us, IL a leading current whose amplititude can be continuously controlled by adjusting U1, there by continuously adjusting the reactive power generated by SVG.

statcom operation

Output sensible reactive: U1

statcom working principle

Characteristics of FGSVG Static Var Generator

1. Voltage source inverter --- the reactive power output can be dynamically and continuously adjusted to meet the power factor compensation requirements to the maximum, and the power factor at any time reaches 0.98~1.0.

2. Inductive / capacitive two-way adjustable --- Static Var Generator (SVG) does not need to configure a filter branch. Since no filtering is required, the SVG capacitor bank can be expanded or modified at any time to meet the new demands of possible operating conditions.

3. It does not need to increase the filter branch, it has the function of filtering harmonics --- STATCOM has the ability to control background harmonics of 19 times and below without increasing the filter branch.

4. Dynamic compensator has the smallest footprint.

5. Controllable current source--- SVG grid generator is a direct current control, the current output can be limited, no resonance occurs, and safety is high. TSC and TCR are impedance type devices. During long-term operation, system operation changes, reactors, and capacitor parameters change, which can easily lead to harmonic amplification and affect system safety.

6. Responding speed is 5ms --- The fastest response, with super reactive power compensation and harmonic filtering. Power SVG uses a new power electronics IGBT with a break time of less than 2us. The TSC and TCR are controlled by a thyristor with a switching time of 10ms, which is approximately 5,000 times that of an IGBT.

7. Loss is 0.5~0.8% --- The SVG grid generator has low operating loss, mainly due to the connection of reactors and IGBT losses, and the operating loss of the complete unit does not exceed 0.8%. In SVC, only the phase-controlled reactor has a loss of 0.9~1%, plus the thyristor and filter branch losses, the total loss is at least 1.2%.

8. Direct control of output current stepless regulation --- The generator SVG output reactive power compensation current does not decrease with the bus voltage drop, so that the dynamic compensation and voltage stability control capability of the same capacity SVG is 1.2 times or more of the same capacity TSC or TCR.

9. There are no phase-controlled reactors and magnetron reactors, and the harmonic characteristics are good. The noise of static device is smaller than TSC and TCR.

10. STATCOM in power system has high reliability and low maintenance.

dynamic var compensator


1. A three-level structure is used to reduce the voltage stress of a single IGBT and reduce du/dt.

statcom block diagram

2. LCL filter circuit can effectively absorb high frequency harmonics.

statcom operation principle LCL Filter Bode Plot

3. The response is fast and the full response time is approximately 3.8ms.

statcom working principle Full Response Time

4. The analog sampling design has high precision and uses internationally renowned devices to build a hardware platform to effectively guarantee product quality.

Main Specification

Product model: FGSVG-L X /0.4-X X-X

Product function: compensation for reactive power, harmonic control, balance negative sequence current, suppress voltage flicker


● Operating voltage: 380VAC± 10%;
● working frequency: 50±0.2Hz;
● Entry method: Outdoor model, incoming line, indoor model, incoming line;
● Grid phase sequence adaptation: YES;
● External CT requirements: Three-phase current CT, secondary side rated current 5A, accuracy 0.2s or higher;
● Current detection method: Grid side / load side detection;

● Single compensation capacity: 50~1000kvar;

● Reactive output range: Capacitive rated power to inductive rated power stepless smooth adjustable;
● Reactive output characteristics: current source;
● Effective response time: Instantaneous response time is less than 100us, full response time is less than 10ms;
● Unique technology: Fault elimination self-start;
● Noise: Not more than 60dB (background noise 45dB);
● Effectiveness: Greater than 97% at full power operation;

Display and interface
● Display specification: FGI independent research and development design display;
● Communication Interface: RS485, Ethernet;
Communication agreement: Modbus_RTU, IEC60870-5-104;

Protective function

● AC overvoltage protection: YES;
● DC overvoltage protection: YES;
Temperature protection: YES;

● Device short circuit protection: YES;
● Device overload protection: Limited to rated power;

Safety performance

● Is there a reliable grounding point: YES;

● Insulation resistance: 500VDC megger, 100MΩ;
● Dielectric strength: 50Hz, 2.2kV sinusoidal AC voltage 1min, no breakdown, no arcing, residual current less than 10mA;

Product configuration

● Stand-alone operation: YES;

● Parallel operation: Up to 10 units in parallel;
● Protection level: Indoor model IP20; outdoor model IP44;

● Shell color: Standard RAL7035, if you need other colors, please contact FGI to customize;

● Dimensions: See FGSVG Series Low Voltage STATCOM Specification and Dimensions for details.;

Environmental conditions

● Ambient temperature: -10 ° C ~ +40 ° C;
● Storage temperature: -30 ° C ~ +70 ° C;
● Relative humidity: Monthly average is no more than 90%, no condensation;
● Altitude: 1000m, higher than 1000m, need to consult FGI for customization;
● Heat dissipation method: Intelligent air cooling.

Product Model Description and Dimensions

The low voltage SVG series model description is shown in the following Figure. Example: FGSVG-L50 / 0.4-3H-O means new landscape 380VAC 50kvar three-phase three-wire wall-mounted outdoor SVG.

static synchronous series compensator operation

static var compensator manufacturer low voltage static generator

Cabinet type SVG Dimensions Wall Cabinet SVG Dimensions

FGSVG Series Static Var Generator Quick Reference---for more information, please download the attachment.

Product Model Voltage Level Rated Capacity Dimensions Weight Entry method Note

(kV) (kvar) W(mm) D(mm) H(mm) (kg)

FGSVG-L30/0.4-4H 30 405 179 465 25
statcom full form


FGSVG series low voltage static synchronous series compensator can be widely used in rail transit, hospital, heating industry, Cigarette Factory, Offshore oil production, Rural power grid, Radiator factory, Shipyard, Construction machinery factory, airport, Water plant, Sewage treatment plant and other industries.

static synchronous series compensator sssc ppt

static synchronous compensator ppt

Our Service

OEM Service is available

After-sales responding within 24 hours

One to one pre-sales consulting services

We are factory with high-tech professional engineer teams

Technician could be assigned to go abroad to carry out site commissioning and technical training



FGI-Tech, a diversified electrical supplier and manufacturer, provides world class AC motor products - medium voltage drives and explosion-proof AC inverter, advanced power distribution systems and power quality solutions. FGI-Tech is committed to innovating energy technology to make broad contributions to the world in the fields of industry automation and energy power".

The FGI-Tech's medium voltage variable frequency drives, feature a unique technology that allows FGI-Tech to offer a simple, flexible and reliable drive solution. Building on many years of experience, FGI-Tech has demonstrated capability as innovator with an imaginative approach to the design and development of high performance electric power systems, enabling greater affordability, efficiency and reliability.

FGI-Tech's BPJV series mining explosion-proof and intrinsically safe AC inverter as one of the high-tech products which combine digital frequency speed regulation technology and related cooling technology. It is widely used in coal mine with coal dust, gas and other explosive dangerous environment, dragging speed governing operation of motor to achieve soft start and soft stop, stepless speed regulation and other functions when the motor is overloaded.

FGI-Tech's distribution transformers are manufactured using the highest quality materials, employing the most modern and reliable manufacturing practices. These Transformers are used for indoor or outdoor applications and can be provided with off-load and on-load tap changers.

FGI-Tech's power quality products consist of static var generators (STATCOM). SVG is the best solution in the reactive power control field at present and has unparalleled advantages. It makes energy more efficient by stepless power factor correction. It is widely used in the application of Renewable power generation, Electrical welding systems, Industrial production machines and so on.

At FGI-Tech we believe in building strong relationships, helping our customers through the complete product life cycle, from selection and electrical system design through to commissioning assistance and after sales service and support. FGI-Tech supports electricity infrastructure with proven technologies to ensure that energy can be supplied in a stable, reliable, and optimal manner.

With standard controls, critical parts, packaged assemblies, and electrical/electronic components are stocked and ready to ship from FGI-Tech.

FGI-Tech aims to pursue innovation in energy and environment technology and to continue creating high-value-added, environmentally friendly products and systems that allow energy to be used stably and with maximum efficiency.

We hope that you are always holding FGI-Tech to high standards.

FGI Park (4)

Company Info

  • Representative: Mikhail Feng
  • Product/Service: Medium Voltage Drives , Low Voltage Drives , Distribution Transformers , Dry Type Transformers , Static Var Generator , Static Synchronous Compensator
  • Capital (Million US $): 500,000RMB
  • Year Established: 2015
  • Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 10
  • No. of R&D Staff: 21 -30 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 5,000-10,000 square meters
  • Factory Location: Middle section of jincheng road, economic development zone, wenshang county, shandong province
  • Contact Person: Ms. Miranda Mu
  • Tel: 86-86--13723461681
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