Complete Product Introduction

1. Product Brief Introduction

The YCSVG high-voltage static var generator independently developed and produced by our company is a new generation of high-performance dynamic reactive power compensation device, which is designed for the reactive power imbalance, three-phase unbalance and harmonic pollution in the power grid of industrial and mining enterprises, metallurgical chemical industry, new energy power generation and other fields. The product adopts the most advanced IGBT modular cascade topology and digital control technology in the industry, which can realize rapid and continuous compensation of reactive power, effectively suppress grid voltage fluctuation and flicker, improve power factor, reduce line loss and ensure the stable and economic operation of power grid.

The product has the characteristics of fast response speed, wide compensation range, high compensation precision, low loss and low harmonic content. It can be seamlessly connected with the power grid without generating additional harmonic pollution to the power grid. The whole machine adopts modular design, which is convenient for installation, debugging and maintenance. It is equipped with a perfect intelligent monitoring and protection system, which can realize real-time monitoring of operating parameters, fault alarm and self-protection functions, and has high reliability and stability in long-term operation. The product is widely used in power systems such as steel rolling mills, electrolytic aluminum plants, wind power stations, photovoltaic power stations, rail transit and large industrial and mining enterprises, and is an indispensable key equipment for improving the quality of power grid and realizing energy saving and consumption reduction.

2. Model Meaning & Explanation

The product model coding is formulated in strict accordance with the national standard and industry norms of electrical equipment, and the letter and number combination in the model contains the core parameters and structural characteristics of the product, the specific meaning is shown in the following figure (detailed marking is convenient for users to select and configure):

3. Executive Standards & Specifications

All design, production and testing of the product are carried out in strict accordance with the latest national mandatory standards, industrial recommended standards and international IEC standards, and have passed the national authoritative type test and inspection certification, the specific implementation standards are as follows:

• GB/T 15576-2020 《General technical requirements for reactive power compensation devices of low-voltage power distribution systems》
• GB/T 29320-2012 《Technical specification for high voltage static var generator (SVG)》
• GB 14549-1993 《Electromagnetic compatibility of power supply systems - Harmonic limits for public power grids》
• GB/T 12326-2022 《Voltage fluctuation and flicker of public power supply network》
• DL/T 1010-2016 《Technical guidelines for reactive power compensation of wind farms》
• GB/T 3804-2017 《3.6kV～40.5kV AC metal-enclosed switchgear and controlgear》

4. Performance Characteristics

• Ultra-fast reactive power compensation, response time ≤ 5ms, realize continuous and stepless adjustment of inductive and capacitive reactive power, no switching shock and over compensation phenomenon.
• High compensation precision, the power factor can be adjusted to above 0.98, effectively improve the utilization rate of power grid equipment and reduce the investment in power distribution capacity.
• Excellent three-phase unbalance compensation capability, which can independently compensate the reactive power of each phase, solve the three-phase load unbalance problem of the power grid and improve the power quality.
• Low harmonic output, the device itself adopts PWM pulse width modulation technology, the harmonic content of the output current is far lower than the national standard limit, no additional pollution to the power grid.
• Strong overload capacity, can withstand 1.5 times the rated current for a long time, and can bear 2 times the rated current impact in a short time, suitable for harsh load working conditions.
• Wide voltage adaptation range, can work stably under the condition of grid voltage fluctuation of ±20%, and has overvoltage, undervoltage, overcurrent and other protection functions.
• High efficiency and energy saving, the operating loss of the whole machine is less than 0.5% of the rated capacity, which is far lower than the traditional capacitor compensation device, and saves a lot of electric energy loss.
• Intelligent network control, support RS485/Modbus/Profibus and other communication protocols, can realize remote centralized monitoring and unified management with the power distribution automation system.

5. Structural Characteristics

The product adopts the integrated cabinet structure design of industrial grade standard, the internal layout is compact and reasonable, the functional division is clear, and the whole machine is composed of power unit cabinet, control cabinet, cooling system and reactive power detection unit, which has the characteristics of high integration and small floor area.

• The main power unit adopts high-quality IGBT power module with high switching frequency, low loss and high reliability, and the service life of the module is more than 100,000 hours.
• The cabinet body is made of high-quality cold-rolled steel plate with thickness of 2.5mm, processed by CNC precision machining, with high mechanical strength, good anti-corrosion and anti-rust performance, and protection grade up to IP20/IP30.
• Independent forced air cooling system is configured, with intelligent temperature control fan, which can automatically adjust the cooling speed according to the operating temperature, ensure the stable operation of the device and reduce noise pollution.
• The control system adopts high-performance DSP digital signal processor, with fast operation speed and high control precision, which can realize real-time collection and calculation of grid parameters and rapid output of compensation current.
• The front of the cabinet is equipped with a touch screen human-machine interface, which can display the real-time operating parameters, fault information and compensation effect of the device, with simple and intuitive operation and convenient parameter setting.
• Modular plug-in design is adopted for internal components, which is convenient for quick replacement and maintenance of faulty modules without affecting the normal operation of the whole system.
• Perfect electromagnetic shielding design, effectively reduce the electromagnetic interference between internal components, ensure the stable operation of the control circuit and improve the anti-interference ability of the device.

6. Main Technical Parameters

Technical Parameter	Parameter Value
Rated voltage	6kV / 10kV / 35kV (customizable)
Rated frequency	50Hz (60Hz optional)
Rated compensation capacity	±500kvar ～ ±20000kvar
Response time	≤ 5ms
Compensation precision	≤±1% rated capacity
Power factor adjustment range	0.8(inductive) ~ 1 ~ 0.8(capacitive)
Total harmonic distortion rate	THDi ≤ 3%
Overload capacity	1.5In (continuous) / 2In (1min)
Voltage adaptation range	±20% of rated voltage
Operating temperature	-10℃ ～ +45℃
Relative humidity	≤95% (no condensation)
Altitude adaptation	≤2000m (derating use for high altitude)
Cooling mode	Intelligent forced air cooling
Communication interface	RS485/Modbus TCP (optional Profibus)

7. Overall Dimensions & Installation Dimensions