Explain Different Types of Relay Pdf
It detects the intolerable or undesirable condition with an assigned area and gives the commands to the circuit breaker to disconnect the affected area. Static relays are classified according to the type of the measuring unit or comparator as follows. Relay All Electrical Characteristics Of Relays Based on the operating quantity the pick-up quantity is calculated. . Its classification is as follows. One is low voltage application and the other is high voltage. Vector Diagrams on Different Axis 11 Figure 1-13. Generally there are two types of relays used for DC and AC switching. The two types of attracted armature type relays are shown in the Figurea and bIn attracted armature type there exists a laminated electromagnet which carries a coilThe coil is energised by the operating quantity which is proportional to the circuit voltage or currentThe armature or a moving iron is subjected to the magnetic force produced by the ope...