Static Var Generator (SVG)— Three Phase
Product Summary:
Static Var Generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications. They are a high performance, compact, flexible, modular and cost- effective type of active power filters (APF) that provide an instantaneous and effective response to power quality problems in low or high voltage electric power systems. They enable longer equipment lifetime, higher process reliability,improved power system capacity and stability, and reduced energy losses, complying with most demanding power quality standards and grid codes.
Low power factor increases the active energy losses of installations and affects their stability. It is typically caused by inductive or capacitive loads that demand extra reactive power to perform properly. Other contributors to low power factor are harmonic currents produced by nonlinear loads and
the change of load in the electric power system.
Working Principle:
The principle of the SVG is very similar to that of Active Power Filter, When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. SVG detects the phase angle difference and generates leading or lagging current into the grid, making the phase angle
of current almost the same as that of voltage on the transformer side, which means fundamental power factor is unit. YIY-SVG is also capable of correcting load imbalance.
Technical Specifications:
| TYPE | Series 400V | Series 500V | Series 690V |
| Max neutral wire current | 10KVar15KVar/ 35KVar/50KVar/ 75KVar/100KVar |
90KVar | 120KVar |
| Nominal voltage | AC380V(-20%~+20%) | AC500V(-20%~+20%) | AC690V(-20%~+20%) |
| Rated frequency | 50Hz±5% | ||
| Network | Three-phase three-wire/three-phase four-wire | ||
| Response time | <10ms | ||
| Reactive power compensation rate | >95% | ||
| Machine efficiency | >97% | ||
| Switching frequency | 16kHz | 12.8kHz | 12.8kHz |
| Feature selection | Deal with harmonics/Deal with harmonics and reactive power/ Deal with harmonics and three-phase unbalance /Three options |
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| Numbers in parallel | No limitation. A single centralized monitoring module can be equipped with up to 8 power modules | ||
| Communication methods | Two-channel RS485 communication interface (support GPRS/WIFI wireless communication) |
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| Altitude without derating | <2000m | ||
| Temperature | -20~+50°C | ||
| Humidity | <90% RH,The average monthly minimum temperature is 25℃ without condensation on the surface | ||
| Pollution level | Below level Ⅲ | ||
| Protection function | Overload protection, hardware over-current protection, over-voltage protection, power grid voltage imbalance protection, power failure protection, over-temperature protection, frequency anomaly protection, short circuit protection, etc | ||
| Noise | <60dB | <65dB | |
| Installation | Rack/wall hanging | Rack | |
| Into the way of line | Back entry (rack type), top entry (wall-mounted) | Top entry | |
| Protection grade | IP20 | ||
Product Appearance:
Rack-Mounted Type:
| Model | Compensation capacity (A) |
System voltage(V) | Size(D1*W1*H1)(mm) | Cooling mode |
| YIY SVG-35-0.4-4L-R (Compact) | 35 | 400 | 515*510*89 | Forced air cooling |
| YIY SVG-50-0.4-4L-R | 50 | 400 | 546*550*190 | Forced air cooling |
| YIY SVG-75-0.4-4L-R | 75 | 400 | 586*550*240 | Forced air cooling |
| YIY SVG-100-0.4-4L-R | 100 | 400 | 586*550*240 | Forced air cooling |
| YIY SVG-90-0.5-4L-R | 90 | 500 | 675*495*275 | Forced air cooling |
| YIY SVG-120-0.69-4L-R | 120 | 690 | 735*539*275 | Forced air cooling |
Wall Mountedd Type:
| Model | Compensation capacity (A) |
System voltage(V) | Size(D2*W2*H2)(mm) | Cooling mode |
| YIY SVG-35-0.4-4L-W (Compact) | 35 | 400 | 89*510*515 | Forced air cooling |
| YIY SVG-50-0.4-4L-W | 50 | 400 | 190*513*599 | Forced air cooling |
| YIY SVG-75-0.4-4L-W | 75 | 400 | 240*600*597 | Forced air cooling |
| YIY SVG-100-0.4-4L-W | 100 | 400 | 240*600*597 | Forced air cooling |
| YIY SVG-90-0.5-4L-W | 90 | 500 | 275*495*675 | Forced air cooling |
| YIY SVG-120-0.69-4L-W | 120 | 690 | 275*539*735 | Forced air cooling |
Floor Type:
| Model | Compensation capacity (A) |
System voltage(V) | Size(D3*W3*H3)(mm) | Cooling mode |
| YIY SVG-50-0.4-4L-C | 50 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-100-0.4-4L-C | 100 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-200-0.4-4L-C | 200 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-250-0.4-4L-C | 250 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-300-0.4-4L-C | 300 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-400-0.4-4L-C | 400 | 400 | Cabinet 1/Cabinet 2 | Forced air cooling |
| YIY SVG-270-0.5-4L-C | 270 | 500 | Cabinet 1 | Forced air cooling |
| YIY SVG-360-0.69-4L-C | 360 | 690 | Cabinet 1 |
* Cabinet 1 size: 800*1000*2200mm, can accommodate 5 modules.
* Cabinet 2 size: 800*1000*1600mm, can accommodate 3 modules.
* The table is the standard specification, if you need other sizes, pls contact us for customization.
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