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Which of the following core has linear characteristics?

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in Electric Drives by (99.6k points)
Which of the following core has linear characteristics?

(a) Air core

(b) Steel core

(c) CRGO core

(d) Iron core

The question was asked in an international level competition.

I'm obligated to ask this question of Effect of Starting on Power Supply, Motor and Load topic in portion Starting of Electric Drives

1 Answer

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Correct choice is (a) Air core

The explanation is: Air core coils have linear magnetization characteristics that are they do not saturate. Open circuit characteristics graph is linear in case of synchronous machine.

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