Electromagnetic energy converted into mechanical energy

AC contactor is a wide range of large electromagnetic appliances, its working principle is to electromagnetic energy converted into mechanical energy, which led to the operative part of the contact action. AC contactor electromagnetic system is the heart of the system will have a direct impact on the electromagnetic contactor  mcb circuit breaker  life, electrical life and cost. Currently, AC contactor electromagnetic system is the energy, materials, and increased life expectancy and  circuit breakers  of direction. In order to improve these indicators, electrical workers in the structural design, simulation, manufacturing processes, dynamic testing has done a lot of research work. Currently, AC contactor electromagnetic system are flat iron core pole face (flat pole face AC contactors).

Primary distribution network from a distribution substation lead to the distribution network between the inlet

Primary distribution network from the distribution power transformers to the distribution of the lead (or power distribution substation) network between the entrance. In China, also known as high voltage distribution networks. air circuit breaker 6 to 10 kV. More use of 10-volt dry urban distribution, density increases as the load, distribution capacity growth, distribution voltage rising trend. Such as Japan as Pat gradually using a 20 kV distribution voltage. Parts of China also tried 20 kV distribution program. Drawn from the distribution substation distribution lines once part of the trunk is called Link. Part of the trunk is called the separation of the branch. Branch line connected with distribution transformers.

Power system is connected directly with the user, and to link users to distribute power

Power system is connected directly with the user, distribution of electric energy to the user's part. air circuit breaker consists of distribution electri cenergy meter, high voltage distribution lines (ie a voltage kV and above), distribution transformers, low voltage distribution lines (1 kV voltage) and the corresponding control and protection equipment. Typically the distribution substation to the user's part is called the home line before distribution system.
Power distribution systems electric meter used methods are: ① three-phase three-wire system; ② with a neutral three-phase four-wire system; ③ three-phase two-wire a ground system; ④ single-phase two-wire system; ⑤ DC distribution. A variety of distribution methods and its main applications are in the table.

Catenary suspension anchors into separate segments

For easy maintenance, fault coverage and shorten the break at different temperatures hanging tension compensation, catenary anchor hanging into separate segments (ie segments), each anchor in the middle segment has a central anchor knot that can not be suspended longitudinal movement , and electri cenergy meter tension adjustment device, at different temperatures, can maintain a certain tension catenary. Is wrist and arm support device insulators, they are positioning the shoulder stand, rod insulator, positioning tubes together to make contact wire stably suspended in the top of the line. circuit breakers, hanging strings, elastic string and contact wire hanging, as an inverter, also known as the pantograph. In order to avoid contact wire pair by a centralized inverter skateboard wear, in order to improve the life of skateboarding, skateboarding and make more uniform by the mill site, contact wire segments are arranged in a straight line zigzag, even in the most intense wind down, the offset is not beyond the wire pantograph operating range.

According to the power different targets, divided into overhead catenary suspension and contact rail

Along the electrified railways, urban transport line to set up an electric vehicle running special form of power lines. From the traction substation power through the catenary and installed in the car by the inverter to air circuit breaker locomotives or electric vehicles. Usually require catenary in any meteorological factors (ice, wind, rain, snow, etc.) and the maximum power transformers to ensure security of electricity supply, and good wear resistance, corrosion resistance, dielectric loss and other properties.
Classification according to circuit breakerscontact rail (third rail) two basic forms. Overhead catenary can be suspended in accordance with the number of vertical lines and features cable is divided into simple suspension and catenary two kinds. The former big sag, suspension flexibility uneven, mainly used in mining locomotives tram or online;

Catenary wire is also known as tram lines, catenary is an important component of

Catenary wire is also known as tram lines, catenary is an important part of the world. Electric locomotive running its pantograph direct contact friction, and from the contact line to get electricity. air circuit breaker, contact wire cross-sectional area should be chosen to meet the requirements of traction power calculation.
Generally made on both sides of the line of contact with the cylindrical groove, which groove clamps for ease of installation and press the technical requirements of suspension fixed contact line position electric meter the pantograph taxi to take stream. Below the line of contact with the pantograph contact arcuate portion, called the line of contact face. Chinese copper contact wire used mostly for two models, the letter T copper, C represents the tram line, G represents grooved form, the latter figure indicates that the copper contact wire cross-sectional area. In recent years, China also introduced a copper contact wire used in Japan.

The contact line pantograph running track range

Positioning means comprises a positioning tube and the retainer. Its purpose is to fix the position of the line of contact, the contact line pantograph running track range, to ensure the contact line and power transformers departing from and the level of the contact line load passed pillar positioner has straight pipe locator , pipe locator. After using the belt speed multifunction vibration damping device locator, circuit breakers pantograph take flow characteristics. Catenary catenary is the role of the contact line through the hanging strings hung up. Catenary can also carry a certain current to reduce the traction network impedance, reducing voltage loss and energy consumption.