Discription
Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power qualityproblems 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 nphase 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.
Product Paramenters
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Max neutral w ire current | | 10KVar15KVar/ 35KVar/50KVar/ 75KVar/100KVar | | |
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| | | Three-phase three-wire/three-phase four-wire |
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Reactive power compensation rate | |
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| | Deal with harmonics/Deal with harmonics and reactive power | Deal with harmonics/Deal with harmonics and reactive power/ Deal with harmonics and three-phase unbalance /Three options |
| | No limitation. A single centralized monitoring module can be equipped with up to 8 power modules |
| | Two-channel RS485 communication interface (support GPRS/WIFIwireless communication) |
Altitude w ithout derating | |
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| | 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 |
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| | Back entry (rack type), top entry (wall-mounted) | |
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