With the growing use of control relay in various equipment such as motors, transistors,power meters and houses which are mean for uninterrupted power service, relay control software is very much in demand. To put in simple words, control relay is “a device which opens or closes a switch in accordance with the current flow through a conducting coil. It is an electromagnetic device and the switches do not come in direct contact with the conducting coil. In most cases, it controls the power flow in a circuit.”
Magnetization and de-magnetization are the two basic principles based on which control relay works. Over the years, control relays have been used to control all most all functions in industrial and commercial processes. Relays play an immensely important role in electrical systems.
Apart from AC and DC relays, there are other types of relays are:
1. Plug-in relays
2. Machine tool relays
3. Latching relays
There are several factors which are considered while designing relays. The important factors are nature and material of the coil, conducting and magnetic properties of the coil.Relays should be operated in optimal temperature conditions as it affects the life cycle of the device. Temperature should be kept below a level which the relay can tolerate.
A good USB relay controllers can control as many as eight devices with the computer One can control devices from the personal computer. Before buying a relay controller, one should do enough research about good brands in the market. One may also ask people who already use controllers as they can be trusted and direct sources of reference. It is always suggested to buy controllers which come with warranty cards. Like all other devices, USB relay controllers also need proper maintenance so that it functions properly for a longer period of time.
