ndw3-4000 air circuit breaker
● product introduction
the ndw3-4000 universal circuit breaker (hereinafter referred to as circuit breaker) can be applied to the distribution network with the ac 50hz/60hz, the rated current of 800a~4000a, the rated insulation voltage of 1000 v, the rated working voltage of ac220v/230v/240v, ac380v/ac400v, ac415v, ac660v/690v, ac1000v for distribution of electrical energy and protecting circuit and power equipment from overload, under-voltage, short circuit, single phase grounding and harm of other faults, and can also be used as isolation switch at the same time. the circuit breaker has multiple protection functions. it can avoid unnecessary sudden power failure while realizing highly accurate selective protection, and improve the reliability and security of the power supply system.
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features
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certification
◆ various controllers are optional:：
nwk21nwk21 - conventional function, digital tube display, practical function and simplicity, which can especially adapt to the low-temperature places;
nwk21/v— including all functions of nwk21, with the voltage measurement added;
nwk22— conventional function, lcd display, multiple and diversified functions, applicable to high-end application places, and more powerful if applied to intelligent system;
nwk22/v— including all functions of nwk22, with the voltage measurement & protection added;
nwk22/p— including all functions of nwk22, with the voltage and harmonics measurement & protection added;
◆ measurement function: with current, voltage, frequency, phase sequence, power, power factor, harmonics and other data measurement functions;
◆ current protection features: a variety of overload long-time delay protection, a variety of short circuit short-time delay protection, short circuit transient protection,
ground protection, neutral line n-pole protection, current unbalance protection, mcr circuit breaker making capacity protection;
◆ maintenance function: with fault record (8 times), historical current peak record, contact wear equivalent, query of operation times, clock function,
◆ self-diagnostic function, test function and fault display function;
◆ with a remote reset device,realize remote recovery after fault tripping of the controller.
the ndw3-4000 universal circuit breaker has obtained china compulsory certification (ccc) for products.
实践案例
best practice
- nuclear power generation
- civil building
- rail transportation
- data center
- rail transportation
- commercial building
- charging facility
- wind power generation
- pv industry
- military field
the world's first fourth-generation commercial nuclear power plant snptc pressurized water reactor (pwr) demonstration project
the fourth-generation with proprietary intellectual property rights, one of the 16 national science and technology major projects
- provide molded case products and dc mcb with two-stage/three-stage protection
- main models: ndb2z, ndm2, ndm2z, ndm1
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class a supplier of vanke real estate
the partnership between nader and vanke real estate can be dated back to year 2009. till now, its products have been used in over 1 million households in 65 cities throughout china. over 50 electrical appliance factories have been built under strategic cooperation with vanke and its low-voltage components account for up to 95% of the vanke's supplies.
- products used: whole series products of liangxin electrical
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the world's first new energy air-rail train made its trial run in chengdu, sichuan
the train control cabinet used nader's ndm2/ndm2z products, which will be later applied to the sudan project and the qingdao metro project.
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china mobile - hohhot & harbin data centers
ultra-large-scale, green and energy-saving, centralized world-class cloud computing data center
- ndw3 series frame circuit breaker
- ndm3 series molded case circuit breaker
- ndq3a series dual power products
- ndb2 series miniature circuit breaker
- ndm1 series miniature circuit breaker
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handan (xingtai) - huanghua port railway main line
national level 1 railway project and the "transportation artery" of hebei province
- ndw3 series frame circuit breaker
- ndm3 series molded case circuit breaker
- ndq3a series dual power products
- ndb2 series miniature circuit breaker
- ndm1 series miniature circuit breaker
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qingdao oriental movie metropolis, shandong
a film and television industry base with the world's largest investment
- ndw1 series frame circuit breaker
- ndm2/ndm3 series molded case circuit breaker
- ndc1/ndr1/r2 series industrial control products
- ndm1/ndb2 series miniature circuit breaker
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china's first expressway with electric vehicle fast-charging services
along the 1,262 km beijing-shanghai expressway, 50 fast-charging stations have been built by the state grid corporation of china, with one fast-charging station every 50 km one-way. each fast-charging station is equipped with four 120-kilowatt dc chargers and eight charging piles and capable of simultaneously charging eight electric vehicles which can be fully charged within 30 minutes.
- ndm2l residual current molded case circuit breaker
- ndm1 circuit breaker
- ndc1 ac contactor
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guazhou wind farm project by longyuan (jiuquan) wind power
the world's largest wind farm and 10 million-kilowatts wind power project
- frame: ndw1-2000
- contactor: ndc1-1600
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100mw photovoltaic project in xitieshan, qinghai
china's first photovoltaic power generation project at an elevation of above 3,000 meters
- ndm5z dc1200v molded case circuit breaker
- ndc1 series contactor
- ndb2 series miniature circuit breaker
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国庆大阅兵，全通信保障，按秒对接
无数“nader”断路器默默坚守在自己的工作岗位，承担着供配电的重要角色，为阅兵的可靠通信保驾护航。
- ndm1a系列微型断路器
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