Remarks：Static Type Dynamic Reactive Var Compensator is widely applied in below industries: the electrified
Application
Static Type Dynamic Reactive Var Compensator is widely applied in below industries: the electrified railway, metallurgy, steelmaking and wind power generation etc. The load in these industries has such features, high change speed, unbalanced three-phase and serious harmonic. However, Static Type Dynamic Reactive Var Compensator can efficiently provide dynamic reactive power compensation to the load, control the voltage fluctuation, eliminates the ultra-harmonics, regulate the three-phase imbalance, etc. The devices can be used for the voltage regulation and phase regulation of power network to enhance the transmission ability of power supply circuit and improve the electric power quality.
Main Characteristics
From the photoelectric trigger ETT to optical trigger LTT, both technologies are available.
The features of LTT is: low triggering power, good BOD protection, strong resistance to electromagnetic interference, low peripheral circuit and long service life, etc.
Realize the parallel processing of digital control signal based on the valve control of DSP. There are a lot of advantages: like fast dynamic response, high control precision, realize the calculation of real time controlled quantity, and system response time is less than 10ms.
Realize system high interference resistance ability and reliable protection by adopting the photoelectric trigger and monitoring method, High electrical potential board integration, BOD protection, Flexible control: can realize simultaneous control of three phases, individual-phase control and balance of three-phase, etc. Realize the unattended operation by the functions of remote operation and automatic system interface.
Highly reliable thyristor valve block
High voltage thyristor valves block can withstand the maximum over-current/ over-voltage of the SVC devices and high level dV/dt and dI/dt by adopting in series opposite and in parallel compression connection method. Achieve optimum dynamic response combine with reactor. To avoid the possible over-voltage impact damage by using photoelectric trigger method for the thyristor, adopt high electric potential circuit group,air insulation and BOD protection.
Solve the high voltage and low voltage insulation problem, strong interference resistance to ensure the valves safe and reliable operation by using photovoltaic conversion triggering and high voltage optical fibers.
Cooling system
Adopt self-cooling of heat pipe or air cooling, also can adopt water cooling for cooling system, as per the requirements of client. Fit with multi-alarm and protection function for the accurate adjustment and control system with no corrosion, no pollution and low noise which can guarantee safe working temperature for the cooled component.
Technical parameter
Network voltage: 6kV——66kV
Rated power: 2-300Mvar
Valve group structures of thyristor: Group open type
Cooling method of thyristor: self-cooling of heat pipe, water cooling
Trigger method: photoelectric trigger or optical trigger
Control system: DSP entire digital control system
Range of reactive power adjustment: -100%-+100%
Adjustment mode: Split phase adjustment
Response time of adjustment system: <10ms
Level of noise: noiseless of self-cooling
Power supply voltage of auxiliary network: 380V±15%
