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LV Switchgear

Product categories of LV Switchgear, we are specialized manufacturers from China, LV Switchgear, Low Voltage Switchgear suppliers/factory, wholesale high-quality products of Metal LV Switchgear R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!

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    • Low voltage switchgear power systems

    Low voltage switchgear power systems

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 10 Piece/Pieces

    • Certificate: 9000

    Huaxin power LGGD switchgear I Use and Characteristics 1 LGGD AC low voltage distribution cabinet for power plants substations industrial enterprises and other power users as AC 50Hz rated voltage 380V rated current up to 3150A in the distribution system as power lighting and power distribution equipment conversion...

    • General electric appliance control for cable conveyor

    General electric appliance control for cable conveyor

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 50 Piece/Pieces

    • Certificate: 9000

    General electric appliance control for cable conveyor Cable conveyor switchgear electrical convey switchgear is made to convey the power for cables Electric appliance controlment comply to the standard GB 7251 Through inspection the products can be sold to the costomers Product

    • Low voltage XL 21 switchgear

    Low voltage XL 21 switchgear

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 10 Bag/Bags

    • Certificate: 9000

    Low voltage XL 21 switchgear Huaxin Power offers many different kinds of metal enclosed and metal clad switchgear XL 21 switchgear is one of them All switchgear is purpose built to ANSI IEEE and NEMA standards We are Original Equipment Manufacturers for a variety of brands offering new used and obsolete equipment in...

    • Low voltage switchgear GCK

    Low voltage switchgear GCK

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 100000PCS

    • Min. Order: 50 Piece/Pieces

    • Certificate: 9000

    Low voltage switchgear GCK GCK type low voltage switchgear is applied for power plants Petroleum and chemical industry The power supply of high rise buildings In large power automation warehouse petrochemical plants and other high requirements and computer interface places as the three phase AC frequency of 50 60 Hz...

    • Low voltage GCS switchgear

    Low voltage GCS switchgear

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 50 Piece/Pieces

    • Certificate: 9000

    Low voltage GCS switchgear GCS type low voltage switchgear GCS LV switchgear is jointly designed two groups according to the Department in charge of industry the majority of users and the design requirements of power units are designed with the situation of China with high technical performance able to adapt to the...

    • Low voltage switchgear KYN28A

    Low voltage switchgear KYN28A

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 10 Piece/Pieces

    • Certificate: 9000

    Low voltage switchgear KYN28A KYN28A removable AC metal clad switchgear equipment hereinafter referred to as switching equipment is the Department of three phase AC 50Hz rated voltage of 3 6 12kV single busbar and single busbar system power distribution equipment Switchgear metal clad metal enclosed is Mainly used in...

    • Terminal Distribution Board PZ30

    Terminal Distribution Board PZ30

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 10000

    • Min. Order: 10 Bag/Bags

    • Certificate: 9000

    Terminal Distribution Board PZ30 Product Introduction PZ30 power distribution boards is a modular terminal combination of electrical appliances widely used in power distribution stations factories industrial and mining enterprises civil construction AC 50HZ rated working voltage 380 220V rated working current to100A...

    • Low voltage Switchgear MNS

    Low voltage Switchgear MNS

    • Brand: HUAXIN

    • Packaging: 1

    • Supply Ability: 100000PCS

    • Min. Order: 10 Piece/Pieces

    • Certificate: 9000

    Low voltage Switchgear MNS LV Switchgear MNS low voltage mns is designed to comply to the requirement of the international standard IEC 439 1 and any other referenced IEC publication MNS type switchgear is suitable for installation in closed locations for electrical equipment and other operating facilities in...

China LV Switchgear Suppliers

Low Voltage Switchgear or LV Switchgear
Generally Electrical Switchgear rated upto 1KV is termed as low voltage switchgear. The term LV Switchgear includes low voltage circuit breakers, switches, off load electrical isolators, HRC fuses, earth leakage circuit breaker, miniature circuit breakers (MCB) and molded case circuit breakers (MCCB) etc i.e. all the accessories required to protect the LV system.
The most common use of LV switchgear is in LV distribution board. This system has the following parts
Incomer
The incomer feeds incoming electrical power to the incomer bus. The switchgear used in the incomer should have a main switching device.
The switchgear devices attached with incomer should be capable of withstanding abnormal current for a short specific duration in order to allow downstream devices to operate. But it should be cable of interrupting maximum value of the fault current generated in the system. It must have interlocking arrangement with downstream devices. Generally air circuit breakers are preferably used as interrupting device. Low voltage air circuit breaker is preferable for this purpose because of the following features 1.Simplicity
2.Efficient performance
3.High normal current rating up to 600 A
4.High fault withstanding capacity upto 63 kA
Although air circuit breakers have long tripping time, big size, high cost but still they are most suitable for low voltage switchgear for the above mentioned features.
Sub - Incomer
Next downstream part of the LV Distribution board is sub - incomer. These sub - incomers draw power from main incomer bus and feed this power to feeder bus. The devices installed as parts of a sub - incomer should have the following features 1.Ability to achieve economy without sacrificing protection and safety
2.Need for relatively less number of inter - locking since it cover limited are of network.


ACBs (Air Circuit Breakers) and switch fuse units are generally used as sub - incomers along with molted case circuit breakers (MCCB).

Feeders
Different feeders are connected to the feeder bus to feeds different loads like, motor loads, lighting loads, industrial machinery loads, air conditioner loads, transformer cooling system loads etc. All feeders are primarily protected by switch fuse unit and in addition to that, depending upon the types of load connected to the feeders, the different switchgear devices are chosen for different feeders. Let's discuss in details •Motor Feeder
•Motor feeder should be protected against over load, short circuit, over current up to locked rotor condition and single phasing.
•Industrial Machinery Load Feeder
•Feeder connected industrial machinery load like oven, electroplating bath etc are commonly protected by MCCBl and switch fuse disconnector units
•Lighting Load Feeder
•This is protected similar to industrial machinery load but additional earth leakage current protection is provided in this case to reduce any damage to life and property that could be caused by harmful leakages of current and fire.
In LV switchgear system, electrical appliances are protected against short circuit and over load conditions by electrical fuses or electrical circuit breaker. However, the human operator is not adequately protected against the faults occurs inside the appliances. The problem can be overcome by using earth leakage circuit breaker. This operates on low leakage current. The earth leakage circuit breaker can detect leakage current as low as 100 mA and is capable of disconnecting the appliance in less than 100 msec.

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