For a particular application the type of electric-and control gear are determined by which of the following considerations ?
Correct answer: E. All of the above
- A. Starting torque
- B. Conditions of environment
- C. Limitation on starting current
- D. Speed control range and its nature
- E. All of the above
Explanation
Motor and control-gear selection must consider the required starting torque, environmental conditions, allowable starting current and the required speed-control range. Since each factor can change the suitable motor-drive arrangement, all listed considerations apply.
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