HV Relay Types And Their Uses

By Linda Moore


Relays are used as switches for mechanical systems or networks that need remote activation. This is because these systems have very high voltage values in terms of electrical current in use. These also need very good insulation values because they can injure people who get close, and the switching sets themselves need some good dielectric materials to float in, like high vacuum and transformer oil.

Companies that specialize in providing these relays provide excellent product qualities because of their engineering, testing and application sets. The HV relay is very important to industry, with large scale uses and applications, and the standards are demanding and exacting. You can track the various kinds of these gadgets through online sites and compare the types in use.

Here are the relevant types of switches that are commonly used. The first type is also the simplest, known as the single pole single throw switch with normally closed or open kinds. The switching in question offers the most direct system found in many applications, which is the simply use of off and on.

The thing called SPDT, or single pole double throw configures both close and open applications in one relay. Because it can offer continuity, this type is relevant to arrays of switches that can control large scale use. Heavy industry, factory operations, arrays for telecom and internet connections, and energy or utility companies all use it.

The double pole or double throw relay or the DPDT contains two double throw relays. These units can compartmentalize any part of a production process or electrical network. This means that a factory, say turn on or shut off one part of its operations for servicing or repair while other processes are still running to complete the complex set.

The relays in question will compartmentalize a very long process. For example, a utility network needs to turn off one part of its operations so that some glitches can be repaired. The DPDT enables engineers and worker to switch off this part while the rest of the network still operates so service to consumers is continuous.

The bistable switch or latching relay is something that is also used for continuity. The rest of the relay types work with failsafes, meaning that their coils need to be constantly charge for operations to continue, while the latching relay can be switched with a short pulse. Monitoring systems can therefore still control supplementary processes during or after an operation.

Contactors are placed strategically through a switching system. They provide normal throughputs a way to handle great charges of electrical pulses of up to 1500V. Thus, an industrial process can operate at very high capacities through contactor switches without fear of fuses and relays burning out and halting operations.

Contactors and relays are all available for many kinds of capacities, shapes and sizes for securing and stabilizing high voltage networks. Any specific kind is made to handle specified work sets through a distribution and switching network. You have to be knowledgeable about specs for your needs and requirements.




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