Applications Of High Voltage Contactor

By William McDonald


Specific areas require a specific amount of electric current to operate. For example, to light a large building with numerous rooms, one will need electricity devices which can handle great currents. In similar situations, high voltage contactor must be fitted in such devices. Huge power connectors are turned on and off electronically. The paragraphs below outlines various devices that utilize such.

Before understanding where connectors are placed, it is important to know various components are making it up. First, there is a coil. These are necessary for energizing valves to turn contacts on or off. Another component is the pole. This part carries current. Finally, there are auxiliary contacts. This controls as well as signals applications of circuits.

Connectors are commonly applied in the paneling of lighting. Large buildings such as commercial as well as offices require that lighting is controlled from a central point. Great current switches are best suited for this due to their ability to transmit strong electrons. Since coils may consume more power in such applications, latching valves are used instead. These have two coils. One is powered temporarily hence suited for closing circuits. The opening coil is suited for establishing connections.

Great current connectors are also used in vacuum contacts. Vacuum connectors are switches which make use of valves compressed in void bottles. These allow suppression of arcs which in turn pushes valves to a smaller size. For this reason, those fuses can be used in dirty processes such as mining. Additionally, vacuum valves are preferred in applications which utilize relatively strong electric energy. This is because they displace oil-filled circuit breakers easily.

Mercury transmitters also utilize connectors. Electric signals in such devices are moved through liquefied mercury. Since mercury reacts easily with air, it is contained in an airtight container. Containers are further lined with insulation materials to prevent heating. For this reason, cycling surfaces which easily corrode with time may utilize such valves. However, usage of mercury relays is reducing since mercury is not environmental friendly. Solid connectors are used in place of these.

Another usage is in mercury-wetted relays. These are transmitters whereby valves are first moistened with mercury before use. However, they may not be categorized as contacts due to the amount of voltage used. Normally, they operate on currents below 15 amperes, unlike other circuits.

Next usage is in transformers also known as the camshaft. Sometimes, several contacts may be used sequentially. In such cases, single electromagnets are ineffective thus the need for the camshaft. These camshafts are operated by a power-driven motor or air-filled cylinders. Initially, camshafts were vital in speeding up power-controlled locomotives. Additionally, they are applied in inner combustion machines which are used to control poppet valves.

These components are used in magnetic starters. These are devices for energizing electricity driven motors to move. Valves are important in such devices since they not only limit the amount of power passing through but also protect the circuit from overloading. In case of power outage, they offer automatic cut-off.




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