Elevator Generator Machine
recently，China Electrical Equipment belongsChina XD(4.870, -0.05, -1.02%)Xikai Electric successfully completed the short-circuit breaking type test of 190 kA generator circuit breaker，It marks the successful development of the first complete set of large-capacity generator circuit breaker for million-kilowatt nuclear power units in China，It has achieved another breakthrough in major equipment in the energy field。The successful development of the product fills the domestic gap，It has realized the localization of major equipment for China's million-kilowatt-class nuclear power units，Provide security for the independent and controllable construction and operation services of China's large-scale nuclear power plants。
Do you know?The arcing process of high-voltage gas switchgear is an electromagnetic one、heat flux、The complex process of multiparameter transient evolution coupled mechanically to each other，During the breaking process of the ultra-large short-circuit current, tens of thousands of K high temperature arc plasma will be instantly generated，When the circuit breaker is opened, the breaking temperature needs to drop to a certain temperature within a few microseconds，At the same time, there are extremely high requirements for the ablation resistance of parts in the arc extinguishing chamber arc area，How did you do that?
Xikai Electric adheres to the combination of production, education and research in the development process，With universities、Nuclear power users and other units continue to cooperate，In-depth optimization of arc extinguishing principle、Multiphysics modeling simulation and parameter measurement、Research on basic common technologies such as high-performance materials，By combining simulation design with experimental iteration，Overcome various technical difficulties，Achieved the success of product prototype testing，The performance of various parameters of the product is excellent，Some reach the highest level of their kind。190The kA generator circuit breaker complete set is mainly used in large nuclear power units with a capacity of 1000-1200 MW，Compared to 170kA products，190The performance of various parameters of the kA generator circuit breaker complete set has been greatly improved。
The successful development of 190 kA generator circuit breaker complete set of equipment products is，China Electric Equipment has been cultivating in the field of generator circuit breakers for a long time、Continuously realize the results of technology accumulation，Added "New Addition" to Enterprise Generator Circuit Breaker Series，It has laid a solid foundation for China's continuous innovation in core technology fields such as large-capacity generator circuit breakers。
So what are its main technical features?……
01High technical parameters
The rated continuous current of the product is 40000 amps，Rated short-circuit breaking current 195 kA，Electrical life 4 times，It has strong flow capacity、Large breaking current、High reliability。
02Small structural arrangement
The product adopts metal closed structure、Horizontal arrangement、The three poles are placed on a common underframe，Enables complete transport and installation，The overall size remains basically the same as that of the 170 kAh product。
03Excellent technical performance
In the process of product development, the principle and structure of new large-capacity and high-efficiency self-energy arc extinguishing are used、Efficient heat dissipation structure、Highly reliable transmission、High conductivity cast aluminum alloy, high glass transition temperature epoxy casting material、New breakthroughs have been made in high ablation resistance, high bonding strength, copper tungsten contact materials and processes。
Let's take a look at our country'sHow powerful are the heavy weapons of the great powers!
01、ZHN10-24 160kA generator circuit breaker complete set
The product is suitable for water with a capacity of 600-800 MW per generator set、Thermal power and nuclear power units，The rated short-circuit breaking current is 160 kA，The rated peak withstand current is 440 kA，It is the first large-capacity generator circuit breaker independently developed in China。2013year，Passed the appraisal of China Machinery Industry Federation，And realize the application in the Xiangjiaba project in that year，It can be completely localized，Make China one of the few countries in the world that can produce large-capacity generator circuit breakers，Reduced engineering procurement costs for domestic users。
02、ZHN10-30 170kA generator circuit breaker complete set
The product is suitable for water with a capacity of 800-1000 MW per generator set、fire、nuclear power plant，The rated short-circuit breaking current is 170 kA，The rated peak withstand current is 600 kA，Rated short-time withstand current 210 kA (3s)，Breakthrough progress in large-capacity breaking。2022year，Passed the appraisal of China Machinery Industry Federation，Fill the domestic gap，The first set of applications has been completed in Baihetan Power Station。
03、ZHN10-24 100kA generator circuit breaker complete set
The product is suitable for water with a single generator set capacity of 300~400 MW、Thermal power stations，Large current-carrying capacity、Strong breaking ability，Fills the domestic gap，It passed the appraisal of China Machinery Industry Federation in 2019，The comprehensive technical performance has reached the international leading level，At present, a number of power stations have been supplied。
04、ZHN10A-24 120kA electric brake switch
This product is a necessary switchgear for large hydro generator sets to achieve fast shutdown，It has independent intellectual property rights，Break the monopoly of foreign enterprises，It passed the appraisal of the National Energy Administration in 2019，The comprehensive technical performance is in the leading position in China、International advanced level，At present, 28 units have been supplied to Wudongde and Baihetan hydropower stations。
05、ZHN10-24 160kA generator warrantyProtect intelligent composite electrical appliances
The product is based on a 160kA generator circuit breaker，Fusion current transformer、Voltage transformer、Measurement protection elements such as arresters，And supporting intelligent monitoring components，Its key technologies and equipment have made major breakthroughs，Implement measurements、protection、Intelligent monitoring integrated function。This product fills the domestic gap，High integration，High degree of intelligence and other characteristics，Its comprehensive technical performance is in the leading position in China，And reach the international advanced level，It has been successfully put into operation in Huaxia Zhujiaping Power Plant in Inner Mongolia。
06、ZHN10-24 pumped accumulator consists of a set of switchgear
The product includes an outlet circuit breaker for power generation motors、Electric brake switch、Phase sequence transfer switch、Start switch、Drag the switch、Start devices such as busbar section switches and branch circuit disconnectors，It is a complete set of highly integrated generator circuit breakers。All products have completely independent intellectual property rights，Fills the domestic gap，The comprehensive technical performance has reached the leading position in China、International advanced level，At present, the first set of applications has been realized in Meizhou pumped storage power station in Guangdong。
07、ZHN10-24 100kA for gas turbinesGenerator circuit breaker complete set
This product is a multi-functional complete set of equipment used in gas turbine power stations，Set measurement、protection、Start-up current access and other functions in one，Fills the domestic gap，High integration，High reliability，The comprehensive technical performance has reached the international advanced level，It has been successfully put into operation at Huaneng Hainan Power Plant Yangpu Power Plant。
The product is based on a 160 kA generator circuit breaker，Fusion current transformer、Voltage transformer、Measurement protection elements such as arresters，And supporting intelligent monitoring components，Its key technologies and equipment have made major breakthroughs，Implement measurements、protection、Intelligent monitoring integrated function，High integration、High degree of intelligence and other characteristics，Fills the domestic gap，The comprehensive technical performance is in the leading position in China、International advanced level，It has been successfully put into operation in Huaxia Zhujiaping Power Plant in Inner Mongolia。
The product includes an outlet circuit breaker for power generation motors、Electric brake switch、Phase sequence transfer switch、Start switch、Drag the switch、Start devices such as busbar section switches and branch circuit disconnectors，It is a complete set of highly integrated generator circuit breakers。All products have completely independent intellectual property rights，Fills the domestic gap，The comprehensive technical performance has reached the leading position in China、International advanced level，At present, the first set of applications has been realized in Meizhou pumped storage power station in Guangdong。
This product is a multi-functional complete set of equipment used in gas turbine power stations，Set measurement、protection、Start-up current access and other functions in one，Fills the domestic gap，High integration，High reliability，The comprehensive technical performance has reached the international advanced level，It has been successfully put into operation at Huaneng Hainan Power Plant Yangpu Power Plant。