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high and low voltage equipment is what?
High-voltage complete equipment (high-voltage power distribution cabinet) refers to the indoor and outdoor AC switchgear operating in the power system with a voltage of 3KV and above and a frequency of 50Hz and below. It is mainly used for the control and protection of power systems (including power plants, substations, transmission and distribution lines, industrial and mining enterprises and other users). It can not only put some power equipment or lines into operation or withdraw from operation according to the operation needs of the power grid, but also quickly remove the faulty part from the power grid when the power equipment or lines fail, thus ensuring the normal operation of the non-faulty part of the power grid and the safety of equipment and operation and maintenance personnel. Therefore, high-voltage equipment is a very important transmission and distribution equipment, its safe and reliable operation of the power system is of great significance to the safe and effective operation.
Characteristics of GGD AC Low Voltage Distribution Cabinet
GGD AC low-voltage distribution cabinet is based on the industry authorities, the majority of power users and design units, in line with the requirements of safety, economy, reasonable and reliable principles of design of new AC low-voltage distribution cabinet. The product has the characteristics of breaking, high connecting ability, good dynamic thermal stability, flexible electrical scheme, convenient combination, strong series applicability, novel structure and high protection level.
Precautions for Installation of High and Low Voltage Distribution Cabinet
The cabinet body and the equipment in the cabinet shall be firmly connected with each component, and the main control cabinet, relay protection cabinet and automatic device cabinet shall not be directly welded with the foundation steel.
What are the characteristics of the inverter control cabinet?
Inverter control cabinet (inverter electric control cabinet/electric control cabinet) can be widely used in metallurgy, chemical industry, petroleum, water supply, mining, building materials, motor industry and other pumps, fans, compressors, rolling mills, injection molding machines, belt conveyors and other medium voltage motor equipment. The frequency conversion cabinet adopts a closed cabinet structure, and the protection level is generally IP20,IP21,IP30, etc. It adopts a profile frame, and the surface is coated with plastic spray, and it is easy to install in the cabinet.
The difference between pre-installed substation and combined substation
Pre-installed substation (European box transformer) Introduction This series of combined (box-type) substation is a complete set of outdoor and oil transformer distribution devices composed of high-voltage switchgear, power transformers and low-voltage switchgear. The product has the characteristics of strong complete set, small footprint, small investment, convenient installation and maintenance, beautiful appearance, strong weather resistance and so on. This product is a frame structure, welded with section steel, aluminum alloy plate outside the frame, and coated with a special paint layer, so that it has strong mechanical properties, weather resistance, corrosion resistance.
Market Status and Problems of China's Low Voltage Distribution Box Industry in 2020
The distribution box is a low-voltage distribution box composed of switchgear, measuring instruments, protective appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or on the screen according to the electrical wiring requirements. During normal operation, the circuit can be switched on or off by means of manual or automatic switches. Fault or abnormal operation with the help of electrical protection to cut off the circuit or alarm. With the help of measuring instruments, various parameters in operation can be displayed, and some electrical parameters can be adjusted to prompt or signal deviation from the normal working state.
Features of inverter control cabinet
The operating cost of a traditional motor consists of three items: initial purchase cost, maintenance cost and energy cost. Energy costs account for about 77% of motor operating costs. By reducing the energy cost by 44.3, coupled with the impact on the equipment after the inverter is reduced, the maintenance and repair volume is also reduced, so the operating cost will be greatly reduced.
Working principle of box-type substation
Box-type substation (referred to as box-type substation) is a kind of high-voltage switchgear distribution transformer, low-voltage switchgear, electric energy metering equipment and reactive power compensation device according to a certain wiring scheme combined in one or several boxes of compact complete sets of power distribution device. It is suitable for the rated voltage 10/0.4KV three-phase AC system, as a line and distribution of electrical energy.
High voltage distribution cabinet is mainly used in what scenes?
High voltage distribution cabinet is mainly used in electric power, iron and steel, metallurgy, chemical industry, petrochemical, paper, textile, food, medicine and other industries in the distribution system of high voltage side. Through the high-voltage distribution cabinet to achieve power distribution, circuit control, protection and electrical equipment control and other functions, effectively guarantee the normal operation of the production enterprise.