Mach Relays Seminar Report with PPT


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A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re- transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.

Mach Relays Seminar Report

Page Length : 31

Content :

  • Introduction
  • History
  • Basic design and operation
  • Types
  • Pole and throw
  • Applications
  • Relay application considerations
  • Protective relays
  • Reference

Mach Relays Presentation Report (PPT)

Page Length : 24

Content :

  • Introduction
  • Electromagnetic Induction Principle
  • Electromagnetic Attraction Type Relay
  • Electromagnetic Induction
  • Relay operation based on Load
  • Typical 5 Pin Relay Pin Identification
  • Types of Relay switching contacts
  • Switch ratings (voltage and current)
  • Advantage & Disadvantage
  • Application
  • References

Additional information

Product Name

Mach Relays Seminar Report with PPT

Product Size

5.69 MB


File Format


File Category



Need For

College, Semester, University

Product Type

Created By

Siddharth Vairagi (NIT Agartala)

Uploaded By

Aravind Gupta




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