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FGSVG G61 Type — Smarter Reactive Power Compensation, Better Power Quality

Información detallada

Descripción de producto

Información detallada

Descripción de producto

FGSVG G61 Type — Smarter Reactive Power Compensation, Better Power Quality

Working Principle

The SVG (Static Var Generator) operates by connecting a voltage-source converter (VSC), composed of a self-commutated bridge circuit using IGBT devices, in parallel with the power grid through a transformer or reactor. By controlling the switching of the IGBT modules, the DC voltage is converted into an AC output with adjustable amplitude and phase.

For an ideal SVG with negligible active power loss, reactive power compensation is achieved solely by adjusting the output voltage amplitude:

When the output voltage is lower than the grid voltage, the SVG operates in an inductive mode, absorbing reactive power (acting like a reactor).
When the output voltage is higher than the grid voltage, it operates in a capacitive mode, supplying reactive power (acting like a capacitor).

SVG systems are categorized into:

Direct-connection type: typically used for 6kV, 10kV, and 35kV applications.
Step-down connection type: generally applied on a 10kV low-voltage side.

The choice of connection depends on the grid voltage level at the point of interconnection and the required compensation capacity. The system uses a cascaded H-bridge topology, and the connection structure can be configured as either star (Y) or delta (Δ), depending on the application requirements.

Product Advantages

Intelligent Human-Machine Interaction, Simplified Commissioning
FGSVG features an intelligent startup self-check function, significantly reducing commissioning complexity and shortening the deployment cycle. With intuitive operation and optimized user interface, it delivers a seamless user experience for operators and maintenance teams.
Advanced Recording and Diagnostic Functions
Equipped with real-time waveform recording and fault trace analysis, including a 16-channel oscilloscope function, FGI's SVG enables precise monitoring and fast troubleshooting during operation.
Self-Adaptive Phase Sequence Recognition
No need to manually determine phase sequence -- the system automatically identifies and adapts, further streamlining installation.
Multi-Level Networking, Seamless Capacity Expansion
FGSVG supports high-speed optical fiber communication (10M/10km), enabling ring-networked, master-slave parallel operation across multiple devices. This design supports easy reactive power capacity expansion, fully addressing users' scalability concerns.
Intelligent Operating Mode Switching
The system automatically switches between normal and fault operating modes. Especially useful in critical applications such as railway substations where automatic adaptation is needed during bus tie switch operations.
Remote Monitoring via APP & Flexible Communication Interfaces
Monitor industrial equipment anytime, anywhere via mobile APP. FGI SVG offers rich communication interfaces including RS485, CAN, Ethernet, and GPRS. It is fully compatible with major industry protocols such as Modbus-RTU, Profibus, CDT91, and IEC104.

Features

Quick Response, Leading Edge: The full series uses instantaneous reactive power theory with a controller response time ≤1ms and full power response time ≤5ms, making it ideal for applications requiring strict reactive power response times, such as steel rolling, steelmaking, lifting, and impact loads.
Negative Sequence Suppression, Balanced System: The system compensates for negative sequence current caused by load imbalances, ensuring balanced three-phase current and improving power quality in the grid.
Multiple Operating Modes: Supports several operation modes to meet different needs: constant reactive power, constant power factor, constant voltage, negative sequence compensation, etc. It allows for online mode switching or custom curves as per customer needs.
Harmonic Mitigation for Safety: Effectively compensates for harmonics up to the 13th order, reducing risks of malfunctioning protection devices, capacitor module damage, transformer overheating, motor instability, and interference in communications.
Long-Distance Power Transmission, Loss Reduction & Voltage Stabilization: SVG devices installed on long transmission lines improve voltage, reduce losses, and provide quick reactive power regulation in fault conditions, enhancing system stability.
Precise Compensation, Turning Penalties into Rewards: SVG adjusts reactive power to keep the power factor at target levels, preventing penalties for low power factor or overcompensation that might cause instability in the grid.
Comprehensive Protection, Worry-Free Operation: Three levels of protection (device, system, and component level), with fast response times, safeguard the device from faults like overcurrent or overload.
Full Recording and Smart Analysis: Real-time monitoring of input/output current and voltage with waveform display, harmonic analysis, and easy access to system data for effective troubleshooting.
Black Box Recording for Precise Diagnostics: Automatically records 200 points (100ms) of data before and after protection actions for quick maintenance and fault diagnostics.
Rich Interfaces, Plug and Play: Supports Ethernet, RS485, CAN, and fiber optic communication interfaces, with protocols like MODBUS, ProfiBUS, and IEC61850 for remote monitoring and operation.
Modular Design for Easy Installation & Maintenance: Modular power units and control systems facilitate large-scale production and easy on-site installation and maintenance.
Safety-Compliant & Easy Maintenance: Designed for safe online operation without the need for downtime, making it easy to replace filters and check data while the equipment is running.
Early Warning System, Hassle-Free Operation: Monitors the temperature of each power unit, and triggers alarms if the temperature exceeds set thresholds, preventing issues like fan failure or filter clogging.
Multi-Unit Collaboration, Easy Expansion: Supports parallel operation of multiple SVG units for easy capacity expansion without system interruptions. In case of failure, the system automatically switches to parallel mode.
Adaptability to Voltage Fluctuations: SVG can automatically adjust to voltage drops or surges within the national standard range, resuming normal operation without manual intervention.
Voltage Flicker and Fluctuations Suppression: Effectively compensates for voltage fluctuations and flickers caused by load changes, such as arc furnaces, rolling mills, and compressors.
Dual Power Supply for Stability: Dual power supply options (380VAC, 2200VAC, or 220VDC) with hot-swappable, seamless switching in case of a power outage.
Electromagnetic Compatibility: The cabinet is designed with anti-interference features and passes EMC tests, ensuring reliable performance in electrically noisy environments.
Dust and Water Protection (IP65): IP65-rated equipment is available for harsh environments with high dust or humidity, offering superior protection.

Installation and Maintenance Guidelines

Indoor Cleanliness
Ensure the installation environment is clean and dry. Accumulated dust may affect system performance and cooling.
Pest Control
Implement anti-rodent measures to prevent small animals from entering the SVG cabinet and causing damage.
Temperature Management
Maintain an indoor ambient temperature below 38 °C. When temperatures rise, use ventilation or air conditioning to cool the area.
Post-Startup Fastening Check
About one week after commissioning, shut down the device and disconnect the main power. Tighten all conductive connections, grounding screws, and bolts to ensure reliable contact.
Daily Inspection
Inspect SVG status daily. If unusual noises are heard, airflow is weak or absent, or abnormal smells (especially ozone) are detected:
- Immediately shut down and disconnect power.
- Check for obstructions in the air intake, clogged exhaust ducts, or fan failure.
- Replace cooling fans or clean ducts as needed.
- Contact the manufacturer if persistent abnormality occurs.
Annual Preventive Maintenance
Schedule a shutdown at least once per year to inspect internal components:
- Open one power unit and examine the capacitors.
- Ensure film capacitors have a smooth, glossy black surface and intact seals.

Case Studies

Case 1: Ferroalloy Furnace Application in Zhengzhou, Henan

Location: Zhengzhou City, Henan Province

Compensation Capacity: -2000kvar to +2000kvar

System Voltage: 6kV

Load Characteristics: Compared to arc furnaces, ferroalloy (submerged arc) furnaces are more stable. However, the site encountered serious three-phase load imbalance and a low power factor.

Compensation Results:

Significant reduction in three-phase imbalance
Power factor improved to meet utility requirements
Stable operation of the furnace under optimized power conditions

Case 2: Wind Power Station Application in Yantai, Shandong

Location: Yantai City, Shandong Province

Compensation Capacity: -10000kvar to +10000kvar

System Voltage: 35kV

Load Characteristics: Due to the intermittent nature of wind resources, the system suffered from frequent voltage fluctuations, with instantaneous power factor dropping as low as 0.81.

Compensation Results:

System voltage stabilized within 35.5-35.7kV
Meets national standard GB/T 12325-2008 (Voltage Deviation Assessment)
Real-time power factor raised to 0.96
Complies with GB/T 14549-1993 (Harmonics in Public Power Grid)
Supports Low Voltage Ride-Through (LVRT) requirements

Case 3: Induction Furnace Application in Xuzhou, Jiangsu

Location: Xuzhou City, Jiangsu Province

Compensation Capacity: -4000kvar to +4000kvar

System Voltage: 6kV

Load Characteristics: The load exhibits a wide frequency spectrum with serious harmonic current distortion, especially at the 5th, 7th, 11th, and 13th orders.

Compensation Results:

Harmonic current compensation efficiency up to 70% below 19th order
5th, 7th, 11th, and 13th harmonic currents reduced to meet national standard
Complies with GB/T 14549-1993 (Harmonics in Public Power Grid)

Etiquetas:

FGI 125kW/261kWh gabinete de almacenamiento de energía refrigerado en líquido Alta eficiencia, diseño todo en uno, plug-and-play, ideal para uso comercial e industrial

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FGI Exterior IP44 10kV SVG de alto voltaje con mayor durabilidad y control de precisión

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El tipo de SVG exterior de 6 kV (generador de var estático)

Consiga el mejor precio

El generador de var estático SVG

Generador de Var estático de alto voltaje

Generador de var estático de bajo voltaje

Compensador de var estático SVC

VFD de media tensión

Inversor de alto voltaje

Inversor de voltaje medio

VFD a prueba de explosión

VFD a prueba de explosión

Dispositivos de VFD

Dispositivos de control vectorial

Sistema del almacenamiento de energía

Sistema de almacenamiento de energía (ESS)

Sistema de conservación de energía

Producto del tránsito ferroviario urbano

Inversor de tránsito ferroviario urbano

Dispositivos de cambio modulares

El generador de var estático SVG

Generador de Var estático de alto voltaje

Generador de var estático de bajo voltaje

Compensador de var estático SVC

VFD de media tensión

Inversor de alto voltaje

Inversor de bajo voltaje

Inversor de voltaje medio

VFD a prueba de explosión

VFD a prueba de explosión

Prueba de explosión.

Dispositivos de VFD

Dispositivos de control vectorial

Sistema del almacenamiento de energía

Sistema de almacenamiento de energía (ESS)

Sistema de conservación de energía

Sistema de conversión de potencia PCS

Producto del tránsito ferroviario urbano

Inversor de tránsito ferroviario urbano

Dispositivos de cambio modulares

FGSVG G61 Type — Smarter Reactive Power Compensation, Better Power Quality

FGSVG G61 Type — Smarter Reactive Power Compensation, Better Power Quality

35kv static var generator

35kv hybrid var generators

indoor static var generator

FGSVG G61 Type — Smarter Reactive Power Compensation, Better Power Quality

FGI 125kW/261kWh gabinete de almacenamiento de energía refrigerado en líquido Alta eficiencia, diseño todo en uno, plug-and-play, ideal para uso comercial e industrial

FGI Exterior IP44 10kV SVG de alto voltaje con mayor durabilidad y control de precisión

El tipo de SVG exterior de 6 kV (generador de var estático)