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Static Var Generator (SVG)

A Static Var Generator (SVG) is a device that uses a freely commutated power semiconductor bridge converter for dynamic reactive power compensation. SVG is currently the best solution in the field of reactive power control. Compared to traditional methods such as synchronous condensers, capacitor banks, and traditional SVCs (Synchronous Transformer Converters) primarily represented by thyristor-controlled reactors (TCRs), SVG has unparalleled advantages.

Your Professional Static Var Generator (SVG) Supplier！

Leonhard (Shanghai) Electricity Co., Ltd. (LEONHARD) established in 2017, is a high-tech enterprise in the field of power quality, specializing in modern, professional, and intelligent high-quality products and services.As a pioneer and leader in power quality solutions, LEONHARD specializes in R&D, production, and sale of Active Harmonic Filter, Static Var Generator, Hybrid Var Compensator System,Dynamic Voltage Restorer,VFD DC Link System,Unified Power Quality Conditioner.

why choose us

Professional Team

Leonhard is the first company in China to apply SiC MOSFET to the power quality industry. It has advanced manufacturing equipment and a professional R&D team. Through continuous improvement and R&D, its SiC series products have now reached the third generation.

Our Certifications

Our products are backed by CE certification, patents, and third-party testing reports. With successful projects across multiple international markets, we understand global standards and application requirements.

Sales Market

Our power quality products have been widely used in Poland, Mexico, Belarus, Cambodia, Thailand, Vietnam, Dortmund and other countries.

Our Service

We provide end-to-end service from pre-sales system design to installation, commissioning, and after-sales support. With 24/7 technical assistance and regular maintenance services, we help ensure stable system operation over time.

Product Specification

We offers the following product specifications：

		220V	400V
Rated capacity	15/25/30/50 kVar	30/50/75/100/150 kvar	50/100 kvar
Rated Voltage	220V(176V~264V)	380V(228V~456V)	480V(380V~690V)
Rated Frequency	50Hz/60Hz (-10% ~ +10%)
Parallel quantities	Each HMI available for 10 Units, HMI Paralled connection not limited
Wiring	3P3W/3P4W
Function	Reactive power compensation, Unbalance compensation, Harmonic compensation
Cotrol algorithm	FFT/Interlligent FFT/Instantaneous Reactive Power
Harmonic Filtering	2nd to 13th Odd orders
Performance	≥97%
Reaction time	＜50μs
Overall response time	＜10ms
Target power factor	adjust from -1 to +1
Noise level	＜60 dB
Interface	RS485
Communication	MODBUS-RTU
Display	4"LCD display on wall mounted module, 7"HMI for rack mounted module parallel connection
Protection	Over 20 kinds of protections such as over-voltage, under-voltage, overheating, over-current, short circuit, etc.
Fault alarm	Up to 500 Alarm event records
Net Weight	13kg(30kVar); 24kg(50kVar); 38kg(100kVar); 45kg(150kVar)
Installation	Wall mount/Rack mount/ Floor stand cabinet
Dimension (WHD)mm	220V Wall/Rack mount 15/25kvar	480130440
	220V Wall/Rack mount 30/50kvar	480200530
	400V Wall/Rack mount 30/75kvar	480200530
	400V Wall/Rack mount 100/150kvar	680200530
	480V Wall/Rack mount 50/100kVar	680200580
	220V/400V/480V Floor Stand Cabinet	100010002000 or by Customized
Color	Grey/Black, Cabinet color can be by customized
Altitude	≥1500m, Between 1,500m to 4000m, derating 1%every additional 100m
Ambient temperature	-20℃~40℃
Relative humidity	5~95%, non-condensing
IP Grade	Wall mount module : IP 20; Floor Stand: IP 40
Certification	CE
Standard complication	IEEE519, IEC61000

Product advantages

Real-time reactive power compensation

SVGs respond within milliseconds to changes in load, maintaining optimal power factor and voltage stability.

Bi-directional operation

Ability to generate or absorb reactive power depending on whether the load is inductive or capacitive.

Harmonic mitigation capabilities

When used alongside active filtration, SVGs help reduce harmonics, improving equipment life and reducing losses.

Fast response time

Critical for operations with variable loads. SVGs can adjust in a few milliseconds, making them ideal for industrial environments with motor loads, VFDs, and switching loads.

Compact design & safety features

Built for high reliability with minimal maintenance. No mechanical switching delays.

Application

Advanced manufacturing:

CNC machines and robots demand stable power; SVG ensures accuracy and consistency.

Renewable energy plants:

Wind and solar output fluctuate heavily; SVG smooths grid integration and maintains quality.

Rail transit:

Traction loads swing drastically; SVG keeps power supply stable and reduces interference with signaling systems.

Data centers:

Sensitive IT equipment relies on stable electricity; SVG maintains voltage and power factor to protect the “data heart.”

Installation Precautions

Proximity to the Point of Common Coupling (PCC):

The SVG static var generator should be installed as close as possible to the point of common coupling where the utility grid connects to the facility. This helps to minimize voltage fluctuations and ensure a stable voltage profile throughout the facility.

Accessibility:

The installation site should be easily accessible for maintenance and operation purposes. It should have adequate space for technicians to carry out routine inspections and repairs without any hindrance.

Environmental Conditions:

The installation site should be free from extreme environmental conditions such as high temperatures, humidity, or corrosive elements. These conditions can affect the performance and lifespan of the SVG static var generator.

Grounding and Earthing:

Proper grounding and earthing systems should be in place at the installation site to ensure the safety of personnel and equipment. This helps to prevent electrical faults and ensures the reliable operation of the SVG static var generator.

Electrical Interference:

The installation site should be free from any sources of electrical interference that could affect the operation of the SVG static var generator. This includes nearby power lines, transformers, or other electrical equipment that could cause electromagnetic interference.

Certifications

Other Services

All of our machines will be fully checked by our quality control department before the shipment. We guarantee all of our have a one-year warranty (quick-wear parts not included).

Training details: Operation principles, system, and structure, safety and maintenance, software processing technique, etc.

Numerous feedback from our clients have proven that our machines are stable in performance with rare malfunction.However, we would like to handle it as follows once malfunction occurs:

We guarantee that we will give you a clear reply within 24 hours.

Customer service staff will assist you in analyzing the malfunction to locate the cause.

If the malfunction is caused by improper operation of software and other soft faults, we will help solve the problem online.

We will offer plenty of online support, like detailed technical and installation instructions via email, video, and telephone.

Package & Delivery

1. Package: Standard export package or Custom

2. Delivery: By air express, by sea

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FAQ

Q: What is a Static Var Generator (SVG)?

A: A Static Var Generator is a power electronics device used to dynamically regulate reactive power in electrical systems, improving power factor and stabilizing voltage quality.

Q: How does an SVG improve power factor?

A: SVG systems continuously detect reactive power demand and inject or absorb reactive current in real time, ensuring the power factor remains close to unity.

Q: What are the main advantages of SVG compared to traditional capacitor banks?

A: Unlike capacitor banks, SVG provides real-time compensation, faster response, and stable performance without step switching or resonance issues.

Q: What response time can an SVG achieve?

A: Modern SVG systems typically achieve response times below 10 milliseconds, ensuring fast adaptation to load variations.

Q: What types of loads are suitable for SVG systems?

A: SVG is suitable for industrial, commercial, and utility applications, especially where loads are highly dynamic such as welding machines, motors, and data centers.

Q: Can SVG handle both inductive and capacitive loads?

A: Yes, SVG can dynamically compensate for both inductive and capacitive reactive power, maintaining system stability in real time.

Q: What voltage levels are supported?

A: SVG systems are available for low-voltage and medium-voltage applications, depending on system configuration and project requirements.

Q: Is SVG suitable for harmonic environments?

A: Yes, SVG can operate in environments with harmonic distortion and is often integrated with active harmonic filtering systems for improved power quality.

Q: What communication protocols are supported?

A: Common communication interfaces include RS485 and Modbus, allowing easy integration into SCADA and energy management systems.

Q: What are the installation options for SVG systems?

A: SVG units can be installed as wall-mounted, rack-mounted, or floor-standing cabinet systems, depending on capacity and site conditions.

Q: How does SVG contribute to energy savings?

A: By improving power factor and reducing reactive power flow, SVG reduces line losses and helps lower electricity demand charges.

Q: Is SVG suitable for renewable energy systems?

A: Yes, SVG is widely used in solar and wind power systems to stabilize grid fluctuations and improve power quality.

Q: What protection functions are included in SVG systems?

A: Typical protections include overvoltage, undervoltage, overcurrent, overheating, and short-circuit protection.

Q: What maintenance is required for SVG systems?

A: SVG systems require minimal maintenance, mainly periodic inspection, dust cleaning, and monitoring of cooling and ventilation systems.

Q: What information is needed for selecting an SVG system?

A: Key inputs include load type, capacity (kVar), voltage level, power factor target, harmonic conditions, and installation environment.

As one of the most professional static var generator (svg) manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale custom made static var generator (svg) from our factory. For more information, contact us now.