The core control parts IGBT and DSP are selected from the world's top brands, and the response time is less than 5ms
Efficient engineering modular design, easier to cooling
Super protection function, fast hardware circuit protection for over-current, shut down PWM output within 2us, fully protect the IGBT module
Empowered by Cloud technology, it can realize long-distance real-time monitoring
With the rapid development of science and technology, power electric technology is constantly updated and applied to various occasions on a large scale, the requirements for the power system is getting higher and higher, and the traditional compensation method can no longer fully meet the use requirements for some impact loads. The new type of compensation product -Static Var Generator (SVG) uses a fully controlled semiconductor devices and grid-connected reactance, the controller detects the load current in real-time, and through the current decomposition algorithm and control algorithm, realizing the real-time two-way reactive power (100% inductive~100% capacitive) and imbalance compensation, which is a good solution to difficult problems in many occasions.
Based on the high power converter, the core is the voltage-type inverter, and the DC side uses DC capacitance as energy storage elements to provide voltage support. In operation, it is equivalent to a three-phase AC power supply with adjustable voltage, phase and amplitude.
The normal operation of the inverter depends on the voltage support of the DC side. When the inverter is connected into the AC power supply, each IGBT reverse freewheeling diode forms a rectifier to charge the DC capacitor. After normal operation, the energy storage of the DC capacitor will be used to satisfy the internal loss of the inverter, and the capacitor voltage will drop, the capacitor must be continuously charged to keep the voltage within the working range. Through changing the amplitude of the inverter output voltage to achieve the purpose of emitting or absorbing reactive power.
Compared to the first and second generation of reactive power compensation, the third generation SVG has faster speed, wider range of compensation (capacitive and inductive adjustable)
Fast response speed: the response time is less than 100us, it can complete the mutual conversion from capacitance reactive power to inductive reactive power in a very short time, and is fully capable of compensating for impact loads.
Good safety performance: the SVG is a current controlled type, and there is no possibility of resonance with the system impedance, which improves the safety and stability of the power system and equipment.
Good compensation performance: the same set of SVG can compensate positive sequence (capacitive and inductive), negative sequence, zero sequence reactive power, and can compensate corresponding harmonics and three-phase imbalance according to actual needs.
Good compatibility: the SVG can be combined with the traditional compensation method arbitrarily and controlled uniformly.
Power Supply Voltage | 400Vx (1 ±20% ) or 690Vx (1 ±20%) |
Power Grid Frequency | 50 x (1 ±5%) Hz |
Response Time | <5ms |
Overall Efficiency | >97% |
Target Power Factor | Capacitive and inductive adjustable |
Compensation Method | Reactive power compensation, harmonic control and three-phase unbalanced compensation |
Parallel Operation | Up to 5 nuits |
Operation Display | LCD control panel, operating parameter setting, touch button operation, multi-parameter display |
Protection Functions | Device overcurrent, over-heat, grid under-voltage, grid phase mismatch, DC busbar under-voltage, overload automatic current limiting protection |
Cooling | Forced air cooling |
Protective Class | IP20, other IP class can be customized |
CT Ratio | 150:5-10000:5 |
Operating Environment Temperature | -20C~ +50°C |
Color | RAL7021 Black sand pattern（other color can be supplied if required ） |
Relative Humidity | <90%(25°C) |
Noise | <65dB |
Communicaiton | MODBUS RTU（ RS485）Ethernet communication function is optional, upper computer monitoring software is optional |
Rated capacity | Model | Installation Dimensions（mm） | Installation Way |
（Kvar） | W×D×H | ||
30 | LESVG400-30-M | 560x550x220 | Modular |
50 | LESVG400-50-M | 560x550x220 | Modular |
75 | LESVG400-75-M | 560x580x220 | Modular |
100 | LESVG400-100-M | 560x580x220 | Modular |
150 | LESVG400-150-F | 800x800x2200 | Cabinet |
200 | LESVG400-200-F | 800 x 800 x 2200 | Cabinet |
250 | LESVG400-250-F | 800x800x2200 | Cabinet |
300 | LESVG400-300-F | 800x800x2200 | Cabinet |
400 | LESVG400-400-F | 1000x1000x2200 | Cabinet |
500 | LESVG400-500-F | 1000x1000x2200 | Cabinet |
Rated capacity | Model | Installation Dimensions（mm） | Installation Way |
（Kvar） | W×D×H | ||
30 | LHG400-30-M | 560x550x220 | Modular |
50 | LHG400-50-M | 560x550x220 | Modular |
75 | LHG400-75-M | 560x580x220 | Modular |
100 | LHG400-100-M | 560x580x220 | Modular |
150 | LHG400-150-F | 800x800x2200 | Cabinet |
200 | LHG400-200-F | 800x800x2200 | Cabinet |
250 | LHG400-250-F | 800x800x2200 | Cabinet |
300 | LHG400-300-F | 800x800x2200 | Cabinet |
400 | LHG400-400-F | 1000x1000x2200 | Cabinet |
500 | LHG400-500-F | 1000x1000x2200 | Cabinet |
Model | LESVG400-500-F |
Main Components | LESVG400-100-M module *5 |
HMI *1 | |
High presicion sampling current transformers *3 | |
Accessories | Cabinet shell, MCCB, surge protector, terminal strip, date line |
| Classify | Title | Download |
|---|---|---|
| FaSVG SVG Operation Manual V2.1 | ||
| FaSVG SVG Operation Manual V3.0 |
Leave your contacts and our engineers will help you to find the solution you are looking for.
The power factor controller is the main component of the reactive compensation (filtering), it can automatically break the capacitor in steps to achieve economically and effective operation.
KNOW MORE
Lafaelt Electirc emphasizes on the production technology and eco-friendly concept, by adopting unique professional technology and accumulated experience in capacitor manufacturing for many years.
KNOW MORE
Hvpcap high-voltage power factor correction capacitors are used in power systems with a frequency of 50/60Hz to increase system power factor
KNOW MORE
The intelligent shunt capacitor is an independent and complete intelligent compensation unit composed of intelligent measurement and control unit, zero-crossing switching relay, protective unit and two (△ type) or one (Y type) low-voltage self-healing capacitor.
KNOW MORE
Lafaelt detuned reactor is used in the low-voltage power compensation cabinet and is connected in series with power factor correction capacitor. It can absorb the grid harmonics effectively, improve the voltage waveform and increase the power factor, and can effectively suppress the clothing inrush current and operating overvoltage
KNOW MORE
Lafaelt dry-type iron-core high-voltage reactor is mainly used in power systems below 35KV to be connected in series with high-voltage capacitor banks to form a high-voltage reactive power compensation device.
KNOW MORE
The thyristor switch adopts the zero-crossing trigger technology, and is the ideal solution for dynamic power factor correction.
KNOW MORE
It combines the advantages of low energy consumption of mechanical contacts and no operating arc of solid-state relays to realize zero-crossing, no inrush current connection and no arc breaking of the relay, and ensure voltage zero-crossing input and current zero-crossing cut-off when switching capacitors.
KNOW MORE
Hi! Welcome back.
How are you doing?
Let s talk! We’ll provide the perfect solution for you！
Since its establishment, Lafaelt Electric has focused on comprehensive solutions for power quality and energy management. It has excellent quality in designing, researching, producing and manufacturing.
Sales Center Add: 2nd Floor, No. 268, Tongxie Road, Changning District, Shanghai, China
Factory Add:No. 79, Qunxing Road, Xinwu District, Wuxi City, Jiangsu Province, China
English
Russian
French
Spanish
Arabic
Thai