Question
Download Solution PDFIdentify the terminals in a three-point starter from the options given below.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe Correct Answer is option (1)
Three-Point Starter:
The back emf (Eb) is developed as motor armature starts to rotate in presence of the magnetic field. Initially, back emf is zero, starting current is high.
To limit this starting current, we use a starter.
A three-point starter helps in starting and running the shunt-wound motor or compound wound DC motor.
A three-point starter is used to reduce the starting current and it has three terminals
i) ‘L’ Line terminal (Connected to positive supply)
ii) ‘A’ Armature terminal (Connected to armature winding)
iii) ‘F’ Field terminal (Connected to field winding)
The no-volt coil is connected in series with the shunt field as shown in the figure of 3 point starter
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