Electro mechanical relay
Electromechanical relays can be classified into several types as follows,
Our manufacturing range of electromechanical relays types are attracted armature relays and Induction disc relays. These electromagnetic relays use the induction principle discovered by Galileo Ferraris in the late 19th century. The magnetic system in induction disc over current relays is designed to detect over currents in a power system and operate with a pre-determined time delay when certain over current limits have been reached.
In order to operate, the magnertic system in the relays produces torque that acts on a metal disc to make contact, according to the following basic current/torque equation where
- is a constant
- are the two fluxes
- is the phase angle between the fluxes
These electromechanical relays can be used without auxiliary supply, dust free environment conditions, long life cycles compare to static and numeric relays.