Podcast
Questions and Answers
What are the two main operating principles of electromechanical relays?
What are the two main operating principles of electromechanical relays?
- Electromagnetic attraction and electromagnetic induction (correct)
- Electrostatic repulsion and magnetic induction
- Electrostatic attraction and electromagnetic induction
- Electromagnetic repulsion and magnetic induction
Which type of relay operates by an armature being attracted to the poles of an electromagnet or a plunger being drawn into a solenoid?
Which type of relay operates by an armature being attracted to the poles of an electromagnet or a plunger being drawn into a solenoid?
- Solenoid-induced armature type relay
- Magnetic induction type relay
- Attracted armature type relay (correct)
- Repelled armature type relay
What is the main operating principle of induction relays?
What is the main operating principle of induction relays?
- Principle of electromagnetic attraction
- Principle of electromagnetic induction (correct)
- Principle of induction motor
- Principle of electrostatic repulsion
Which type of relay may be actuated by DC or AC quantities?
Which type of relay may be actuated by DC or AC quantities?
What is the specific type of relay that operates by a plunger being drawn into a solenoid?
What is the specific type of relay that operates by a plunger being drawn into a solenoid?
What are the two main operating principles of electromagnetic attraction relays?
What are the two main operating principles of electromagnetic attraction relays?
What are the important types of electromagnetic attraction relays?
What are the important types of electromagnetic attraction relays?
What is the specific principle on which induction relays operate?
What is the specific principle on which induction relays operate?
What is the specific type of relay that operates by a plunger being drawn into a solenoid?
What is the specific type of relay that operates by a plunger being drawn into a solenoid?
Which type of quantities can actuate the important types of electromagnetic attraction relays?
Which type of quantities can actuate the important types of electromagnetic attraction relays?
Study Notes
Operating Principles of Electromechanical Relays
- Two main operating principles are electromagnetic attraction and electromagnetic induction.
- Electromagnetic attraction involves an armature being attracted to the poles of an electromagnet, or a plunger being drawn into a solenoid.
Types of Relays
- Electromagnetic Attraction Relays: Operate through magnetic attraction; key types include simple switch relays and latching relays.
- Induction Relays: Operate based on the interaction of magnetic fields; respond primarily to AC quantities but can also be actuated by DC.
- Solenoid Relays: Specifically operate by a plunger being drawn into a solenoid.
Operating Principles of Induction Relays
- Induction relays utilize the principle of electromagnetic induction, where electric current creates magnetic fields that induce motion.
Actuation of Relays
- Electromagnetic attraction relays can be actuated by both DC and AC quantities, making them versatile in different electrical systems.
- Induction relays are primarily designed to respond to alternating current (AC).
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Description
Test your knowledge of electromechanical relays operation with this quiz. Learn about the operating principles and types of electromagnetic attraction and induction relays.
