Zhuhai Wanlida Electric Co., Ltd.

We are offering 10kv series static var compensator. Why choose svc of mcr type high reliability: the scr is installed in low voltage circuit, not in main circuit, so, the withstanding voltage is just 1% of main circuit voltage. Low harmonic contents: thd is below of 5%, which comply with related national criterion, if the multiple connections are adopted, the thd can be reduced below of 1.2%. Small dimension: the dimension of mcr is about 25 of tcr. It can be able to connect in high voltage power grid, the cost and floor space are reduced dramatically. Fast response time(100300ms), it can fully meet the demand of dynamic reactive power compensation of power equipments. No need of cooling devices, which reduce the fault rate, maintenance cost and floor space.

We are offering MCR Typed Static Var Compensator For Electric Railway Traction Substation.The advantage of MCR-typed SVC The MCR-typed SVC was based on traditional saturation reactor technology; it was put forward by Russia scientists. They introduced the concept of magnetic valve creatively to just make the small section of iron core saturation, which solved the high harmonic problems caused by traditional saturation reactor, because all iron cores in traditional saturation reactor are excessive saturation, then result in nonlinear harmonic. At the same time, the SVC of MCR type reduced the dimension, weight and noise of entire system; it has many advantages, such as: low harmonics, fast response time, high voltage withstanding level, stable operation, small floor space and long service life. Therefore, the SVC of MCR type is quickly spreading in Russia, Ukraine, America, India, China and other countries. It plays a very important role in improving power quality, decreasing reactive power loss, stabilizing power grid voltage and enhancing the reliability of power grid operation.Because MCR-typed SVC adopted advanced micro-electronics technology, it can regulate reactive power demand and compensation on bus bar accurately: The inductive reactive current in main circuit can be adjusted through changing low voltage DC to regulate main circuit impedance fast and smoothly, meanwhile, through cooperating with capacitor bank paralleled in bus bar, reactive power compensation demand can be realized on bus bar, and dynamic response and improved power factor can stabilize bus bar voltage.Choosing reactor parameters properly connected in series with capacitor bank, the compensation on fundamental wave can be obtained, and the harmonic also can be filtered.Because the SVC of MCR is free of frequent switching from mechanical parts, then it avoids surge and over-voltage impact caused by MSC, which enhances the reliability and the service life of the equipment, as well, protects the other instruments.

We are offering mcr typed static var compensator for substation. Stabilizing weak systemsminimizing line lossincreasing power transfer capabilityproviding greater dynamic voltage control why choose svc of mcr type high reliability: the scr is installed in low voltage circuit, not in main circuit, so, the withstanding voltage is just 1% of main circuit voltage. Low harmonic contents: thd is below of 5%, which comply with related national criterion, if the multiple connections are adopted, the thd can be reduced below of 1.2%. Small dimension: the dimension of mcr is about 25 of tcr. It can be able to connect in high voltage power grid, the cost and floor space are reduced dramatically. Fast response time(100300ms), it can fully meet the demand of dynamic reactive power compensation of power equipments. No need of cooling devices, which reduce the fault rate, maintenance cost and floor space. application industrial fields a complete set of svc system can be used to generate constantly varied inductive and capacitive reactive power with fast response time. So far, svc system has been extensively used in electric power system and industrial field such as: rolling mill, electric arc furnace and ladle furnace, electric railway traction substation, hoists and other heavy industrial loads, long distance power transmission, wind power plant and secondary substation (66kv to 110kv) etc.

We are offering static var compensator . Improve power factor and reduce line lossstabilize system voltage, reduce voltage fluctuationrestrain and eliminate harmonic wind power plant the output power of generator is always fluctuated frequently because of variable wind power. At present, the popular asynchronous wind generator (including doubly-fed type) needs to absorb parts of inductive reactive power to build magnetic fields, the paralleled capacitor banks can realize compensation, but the stepped switching capacitor banks can not meet fast and dynamic reactive power compensation demand caused by variable wind power, sometimes, if the capacitor banks can not meet reactive power compensation in time, the wind generator will absorb reactive power from the upper power grid, which will result in low power factor of upper power grid and then cause voltage fluctuation, so the state grid put forward the < regulations on state grid corporation wind farm grid access technology (amendment)> based on voltage fluctuation, flicker, frequency deviation, harmonics and lacking reactive power. the svc of mcr can solve the above problems to meet the demand of utility. secondary substation (66kv to 110 kv) in the regional power grid, the stepped switching capacitor banks are used to compensate the system reactive power and increase the power factor. But they are only able to provide the capacitive reactive power, and unable to realize rapid and accurate adjustment according to the load variation, so sometimes they provide much more reactive power than the actual desired reactive power, which will result in over voltage of the bus bar and damage the electric equipment and destroy system stability.