Electromagnetic Relay Drawing

The operating torque is produced by electro magnetic.

Electromagnetic relay drawing. Modern electrical protection relays are mainly micro processor based but still electromagnetic relay holds its place. In normal de energized status left part of the drawing to the electrical terminals 2 and 3 is not. Electromagnetic relays uses an electromagnet to operate a switching mechanism mechanically. Carefully build this circuit on a breadboard or other convenient medium.

Electromagnetic relays are those relays which are operated by electromagnetic action. Draw the schematic diagram for the relay circuit to be analyzed. Electrical symbols switches and relays. The relay are switching devices activated by signals.

Also the design construction working applications and also relay selection is explained in detail. A relay is an electromagnetic switch that is used to turn on and turn off a circuit by a low power signal or where several circuits. The force is developed by the interaction of electromagnetic fluxes with eddy current that is induced in the rotor by these fluxes. The conventional types of electromagnetic relays electro mechanical relay has one or more coils movable elements contact system etc and its operation depends on whether the operating torque or force is greater than the restraining torque or forcethe relay operates when the operating force is greater than the restraining force.

The mechanism of a switch may be operated directly by a human operator to control a circuit for example a light switch or a keyboard button may be operated by a moving object. The initial force is developed on the moving element that may be disc or another form of the rotor of the non magnetic moving element. A relay is an electromagnetic switch used to switch high voltage or current using low power circuits. For example we can use it for controlling home appliances with a normal low voltage electronic circuit.

Us3618136a electromagnetic relay google patents electromagnetic relay download pdf info publication number. The electromagnetic relay operates on the principle of a split phase induction motor. Check the accuracy of the circuits construction following each wire to each connection point and verifying these elements one by one on the diagram. An electromagnetic relay so constructed that the internal electrical connection can be attained incident to assembly of the relay by previously performing a soldering operation at one place for one terminal end of a coil or at a total of two places for both terminal ends of the coil.

A typical electromagnetic relay consists of a electromagnet an iron bar marked with 7 on the drawing and a coil of wire marked with 6 an iron armature 8 with fixed pin of insulator 9 and 3 contacts. What is a relay. So before going through detail of protection relay system we. It also provides isolation between low power circuit and high power circuits.

Normally closed 11 normally opened 12 and common pole contact 10. The electromagnetic controls are activated thanks to electromagnetic fields generated by electricity. Most of the time a small voltage or current is used to switch other voltages or higher currents that may be electromechanical or fully electronic type.