MV static var generator

Medium voltage Static Synchronous Compensator A static synchronous compensator (STATCOM), also known as a static synchronous condenser (STATCON) or Static var generator (SVG), is a regulating device used on alternating current electricity transmission networks. SVG is the representative of newest technology in reactive power compensation field, which is connected in parallel to the grid, similar to a variable var current source. Its var current can change following the load rapidly and automatically. Main Functions Sinopak magnetically controlled soft starter consists of the incoming line, switch, magnetically controlled reactor and controller. The equipment controls MCR reactance through changing magnetic permeability of iron core with DC excitation current, so it is called magnetically controlled soft starter. 1. Improve the stability of power transmission In long distance transmission system, SVG can not only compensate the power line losses caused by reactive power, increase line voltage and improve effective transmission capacity under normal operation, but also offer reactive power adjustment in time, damp system oscillation and improve system stability in case of fault. 2. Maintain the receiving-end voltage level Since high capacity load centers lack reactive power support, it is easy to cause grid voltage dip, even cause voltage collapse. However, SVG is capable of fast var adjustment. Therefore, the receiving-end voltage level is greatly stabilized. 3. Reactive power compensation leading to high power factor and low line losses Many types of loads need a mass of reactive power when operation, such as asynchronous motors, arc furnaces, rolling mills and high rating rectifiers. At the same time, the upstream transformer and line impedance also generate reactive power, which still leading to low power factor. For the power system, loads with lower power factor will increase the line losses, voltage drop and deteriorate voltage quality. Addi....

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