Medium voltage Static Synchronous Compensator

Medium voltage Static Synchronous CompensatorA 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 FunctionsSinopak magnetically controlled soft starter consists of the incoming tch, 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 es caused by reactive power, increase age 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 es 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 dance also generate reactive power, which still leading to low power factor. For the power system, loads with lower power factor will increase the es, voltage drop and deteriorate voltage quality. Additionally, reactive power will reduce efficiency of power generation, transmission and distribution. For clients, low power factor will increase production costs. 4. Restrain voltage fluctuation and flicker. Voltage fluctuation and flicker are mainly caused by rapid loads variation. This rapid variation also causes the load current fluctuation dramatically. The current variation leads to system voltage losses changing very fast, which brings the receiving-end grid voltage flicker. The typical loads that cause voltage flicker are arc furnaces, rolling mills, electric locomotives, etc. SVG can offer fast reactive power regulation, which mitigate voltage fluctuation and flicker easily caused by loads variation.5. Mitigate 3-se imbalance. In distribution network, there are a lot of 3-se unbalance loads, typically like electric locomotives and arc furnaces. At the same time, transformer impedance unbalances can also cause voltage unbalance problem. SVG can fast compensate negative sequence current caused by unbalance loads, which ensure balanced 3-se grid current. Thus, it improves the power supply quality greatly.Technical Specifications AC InputRated voltage:6kV/10kV/35kVRated frequency:50X(1±5%) HzMode of connection:3P3WTarget power factor:Meet design requirement within capacity rangeFull response time:5ms (10%~90%)Active power loss: less than 0.8% of rated powerOperation mode:Constant power factor, constant reactive power and constant voltage control are optionalCommunication:Modbus Protocol (RS485/Ethernet interface) Operation display:Parameter setting, multiple parameters display, Operating data recording, faults recording etc.Expansion capability:Parallel operation is available to meet the demand of larger capacity.Protection:Power grid over-voltage, under-voltage, se lost;DC Busbar over-voltage, under-voltage;Power module over-current;Control system power loss protection;Automatically current limit in case of overload;Communication failure protectionOperation EnvironmentAltitude: less than 1000m (derated power if more than 1000m, or specially customized)Ambient temperature:-10degree~+45degreeStorage temperature:-25degree~+65degreeAmbient humidity:Maximum relative humidity 95% (non-condensing)Anti-fouling grade:Grade IIIEarthquake resistance:7 degreesFor more product information, please feel free to Ashley by sending to , n70