Jan 24, 2019

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.

Connectors have a number of applications. It is paramount to first understand the features of valves before delving into these applications. Contacts have three components. Each of these is designed to perform differently. The first part is known as a coil. Coils are used to power switches on or off. They are coiled to help pass current fast as well as cut it off. Secondly, there is a pole. Poles are suited for transmitting current. Then there are auxiliaries which panel and signals circuit usage.

In huge buildings such as business premises and office apartments, it is common for a large amount of electric power to be used up. In such cases, connectors are used in paneling lighting. This enables power to be controlled from one specific point. Additionally, those valves efficiently supply large currents to such buildings. Latching switches are preferred in big buildings since coils consume a lot of electric energy in those applications.

The other usage is in vacuum contacts. These are specialized switches whose valves are compressed in vacuum containers. During transmission, these valves are pushed by suppressing arcs. They become smaller hence occupy little space than before. This makes it possible to transmit huge currents at the same time. Since switches are internal and need no air, vacuum switches can be used in dirty surroundings such as in mining. This is because they can easily move circuit breakers immersed in oil. Likewise, electric signals are easily broken hence applicable in fast lighting elements.

Thirdly, connectors are a common element of mercury relays. Mercury transmitters utilize liquid mercury in transmitting electric current. They are unique since mercury is stored in a properly sealed bottled with insulated inner surfaces. Insulation makes such contacts suitable for cycling surfaces which are prone to corrosion. These transmitters are however being discouraged because mercury is known to be environmentally hazardous.

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.

Another usage is in camshafts also known as transformers. Camshafts are special transmitters that utilize numerous circuits aligned sequentially. Electric magnets would be best, but they cannot be used individually. Switch efficiency in transformers is more improved since electric current may be powered by electric motors or gas cylinders. Initially, camshafts were widely used to speed up electric locomotives.

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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