Sowest Electric
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The fundamental principle of a Static Var Generator (SVG) is to connect a three-phase bridge inverter circuit to the grid through a reactor. By appropriately adjusting the phase and amplitude of the AC-side output voltage of the bridge circuit or directly controlling its AC-side current, the circuit can generate reactive current that meets system requirements, thereby achieving reactive power compensation. The SVG continuously tracks real-time changes in the system's reactive power and provides linear compensation to ensure the system power factor remains at 0.99 at all times. It supports bidirectional reactive compensation (both capacitive and inductive), dynamically adjusting based on system demand to prevent overcompensation or under compensation.
Utilizing active compensation, the SVG avoids common issues in traditional reactive compensation devices, such as resonance, harmonic amplification, and low-efficiency compensation under low-voltage conditions. Its modular design simplifies capacity expansion, maintenance, and wiring, offering flexible configurations. The device supports wall-mounted or rack-mounted installation, adapting to diverse on-site requirements.
| Installation | Rack Mounted | Wall Mounted | ||||||
|---|---|---|---|---|---|---|---|---|
| 30kvar | 50kvar | 75kvar | 100kvar | 30kvar | 50kvar | 75kvar | 100kvar | |
| W (mm) | 452.5 | 472 | 550.6 | 558 | 423 | 503 | 503 | 503 |
| D (mm) | 450 | 540 | 540 | 540 | 88 | 122 | 190 | 220 |
| H (mm) | 86 | 122 | 190 | 220 | 550 | 558 | 597 | 608 |
| Basic Information | |
|---|---|
| Rated input line voltage | 400V*(1±20%) |
| Power grid frequency | 50Hz/60Hz |
| Parallel operation | Unlimited |
| Overall efficiency | ≥97% |
| Power grid structure | 3P3W, 3P4W |
| CT | 50/5 ~ 5000/5 |
| Performance Indicators | |
| Compensation capacity | 30/50/75/100kvar |
| Overall response time | <10ms |
| Target power factor | Adjustable from -1 to +1 |
| Cooling mode | Smart air cooling |
| Noise level | <65dB |
| Communications and Monitoring Capabilities | |
| Communications ports | RS485, CAN, and network port |
| Communications protocols | PMBus, Modbus |
| Alarm | Available |
| Monitoring | Monitoring module, and optional centralized monitoring modules |
| Environment Requirements | |
| Altitude | 2000 m. Between 2000 m to 4000 m, according to GB/T3859.2, the power decreases by 1% for every additional 100 m. |
| Operating temperature | -10°C ~ +40°C |
| Relative humidity | 5% to 95% non-condensing |
| Protection class | IP 20 (other IP classes are customizable) |
Quality is ensured through strict protocols. We always prepare a pre-production sample before mass production, and a final thorough inspection is conducted before every shipment.
A comprehensive range of products can be sourced, including Power capacitors, Reactors, Transformers, Switchgear, Circuit breakers, Disconnect Switches, Lightning arresters, and other power system accessories.
With specialized design capabilities, 12kV solutions can meet altitudes up to 4000 meters with a rated current of 4000A and breaking current of 50kA. Additionally, 40.5kV solutions can meet requirements for environments up to 3000 meters above sea level. Systems from 72.5kV up to 1000kV can also be supplied.
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Communication is supported in both English and Chinese to facilitate seamless technical support and order processing.
