Low-voltage SVG Module
Low-voltage SVG Cabinet
Low-voltage SVG Schematic
LOW-VOLTAGE SVG
Filtering Performance & Suppressing Voltage fluctuationFast Response & High Reliability
With large-scale use of various nonlinear devices, the requirement of power supply system becomes higher and higher. As one of the core equipment and technologies of flexible AC transmission system (FACTS), application of SVG in the reactive compensation can achieve continuous and fast reactive power regulation from inductance to capacitance, effectively suppress voltage fluctuation, is the best solution in reactive power control.
Working Principle
The basic principle of SVG is shown in Fig.1. The system is regarded as a voltage source, SVG as a controllable voltage source. It rapidly absorbs or gives out the required reactive power by adjusting the amplitude and phase of output voltage at its AC side to achieve the purpose of fast dynamic regulation of reactive power.
Main Applications
Industries
Car manufacturing, metallurgy, port, wharf, petrochemical engineering, non-ferrous, power, mining, coal chemical industry, war industry, light industry, machinery manufacturing, public facilities, municipal engineering, rail transportation, etc.
Working Conditions
Various occasions demanding reactive power, especially for irregular rapid changing, shocking, three-phase unbalanced load. Rolling, DC furnace, electric arc furnace, lifting platform, cable car, internal mixer, punching machine, rolling mill, forging, textile machine, and other loads with rich harmonic content.
Performance Characteristics
- Advanced Adopting the latest international quality devices;
- Flexible Seamless reactive power regulation from inductive to capacitive;
- High Efficient Single-phase and three-phase regulation;
- Quick Fast response speed. Dynamic response time is less than 1ms;
- Stable Stabilizing system voltage, allowing the system to operate more stably; Single-phase dynamic regulation, suppressing the negative sequence component.
- Energy Saving Obvious energy saving effect, saving up to 4%~15%;
- Protection Over-voltage, under-voltage, output over-current protection;
- Convenient Simple design and model selection, simple installation, operation and maintenance , scalable parallel operation of SVG module;
- Safe SVG is not resonate with system impedance, with higher safety;
-
Fully Functional Intelligent Operating System
- Adopting intelligent operating unit, friendly interface;
- Display interface real-time displays power grid voltage, SVG current, load current and waveform;
- Real-time fault records and information query.
Technical Parameters
| Input | |||
| Rated Voltage (V) | 400、690, other voltage levels can be customized | Working Frequency (Hz) | 50/60±5 |
|---|---|---|---|
| Wiring Mode | Three-phase three-wire, Three-phase four-wire, single-phase | ||
| Performance Index | |||
| Power Factor | More than 0.99，can be set | Reactive power compensation method | Dynamic continuous self-regulation |
| Response Time | <1ms | Overall Efficiency | Up to 98% |
| Harmonic Filtering | Yes, can be set | IGBT Frequency | 20kHz |
| Overload Protection | Automatically limit current at 100% rated output | Compensation for Three-phase Unbalanced, Load | Yes |
| Output Harmonic Current | <3% | Mean Time Between Failures (MTBF) | MTBF≥150000小时 |
| Self loss | ＜2.5% | ||
| Interface Module | |||
| Display interface | Real-time display of multiple parameters such as system voltage, current, power factor, etc. | Operation Interface | Operational parameter setting |
| Display Language | Simplified Chinese/English | Communication Interface | RS485、Modbus protocol |
| Operation Environment | |||
| Ambient Temperature | -10℃~+55℃ | Storage Temperature | -40℃~+75℃ |
| Relative Humidity | Maximum 95%RH (no condensation) | Altitude | Conventional 2000 meters, higher altitudes can be customized |
Specifications & Models
KLD-SVG-3L Type Selections
| Common Models | Compensation Capacity (kvar) |
System Voltage (V) |
Overall Dimension Width×Depth×Height |
Coolingng Method |
|---|---|---|---|---|
| KLD-SVG-50-3L-400V/690V | 50 | 400/690 | 520×610×200 | Forced cooling |
| KLD-SVG-100-3L-400V/690V | 100 | 400/690 | 520×600×255 | Forced cooling |
| KLD-SVG-150-3L-400V/690V | 150 | 400/690 | 520×620×270 | Forced cooling |
| KLD-SVG-200-3L-400V/690V | 200 | 400/690 | 520×620×290 | Forced cooling |
| KLD-SVG-250-3L-400V/690V | 250 | 400/690 | 520×630×310 | Forced cooling |
| KLD-SVG-300-3L-400V/690V | 300 | 400/690 | 520×640×330 | Forced cooling |
KLD-SVG-4L Type Selections
| Common Models | Compensation Capacity (kvar) |
System Voltage (V) |
Overall Dimension Width×Depth×Height（mm） |
Coolingng Method |
|---|---|---|---|---|
| KLD-SVG-50-4L-400V | 50 | 400 | 520×610×200 | Forced cooling |
| KLD-SVG-100-4L-400V | 100 | 400 | 520×600×255 | Forced cooling |
| KLD-SVG-150-4L-400V | 150 | 400 | 520×620×270 | Forced cooling |
| KLD-SVG-200-4L-400V | 200 | 400 | 520×620×290 | Forced cooling |
| KLD-SVG-250-4L-400V | 250 | 400 | 520×630×310 | Forced cooling |
| KLD-SVG-300-4L-400V | 300 | 400 | 520×640×330 | Forced cooling |
For model issue, welcome inquiry.
