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The principle of step-up chopper can be employed for the ________(a) Motoring mode(b) Regenerative mode(c) Plugging(d) Reverse motoring modeI got this question in exam.My enquiry is from Dynamics in division Dynamics of Electrical Drives of Electric Drives

Answer»

Correct option is (b) Regenerative mode

The explanation is: The step-down CHOPPER is used in MOTORING mode but a step-up chopper can OPERATE only BRAKING mode because the CHARACTERISTICS are in the second quadrant only.



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