Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity ?
Correct answer: C. Field test
- A. Swinburne's test
- B. Hopkinson's test
- C. Field test
- D. Brake test
Explanation
Field’s test is suitable for two similar large D.C. series motors because the machines can be mechanically coupled and tested under load without wasting the entire output in a brake. Swinburne’s and Hopkinson’s tests are not generally suitable for series motors.
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