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“Generator Operator related Frequently Asked Questions in various Generator Operator job interviews by interviewer. The set of questions here ensures that you offer a perfect answer posed to you. So get preparation for your new job hunting”



98 Generator Operator Questions And Answers

65⟩ Explain me what is Control System?

In a System the output and inputs are interrelated in such a manner that the output quantity or variable is controlled by input quantity, then such a system is called Control System.

The output quantity is called controlled variable or response and the input quantity is called command signal or excitation.

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66⟩ What is iDMT relay?

It is an inverse definite minimum time relay.In IDMT relay its operating is inversely proportional and also a characteristic of minimum time after which this relay operates.It is inverse in the sense ,the tripping time will decrease as the magnitude of fault current increase.

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67⟩ Explain me what if there are no compensation windings?

In the absence of compensation windings the flux will be suddenly shifting backward and forward with every change in load inducing an e.m.f in the armature coils. The magnitude of this e.m.f may be so high as to strike an arc between the consecutive commutator segments. This may further develop into a flash-over around the whole commutator thereby short circuiting the whole armature.

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80⟩ Do you know what is Latching current?

Gate signal is to be applied to the thyristor to trigger the thyristor ON in safe mode. When the thyristor starts conducting the forward current above the minimum value, called Latching current, the gate signal which is applied to trigger the device in no longer require to keep the scr in ON position.

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