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The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.
Correct answer is between '31,33'. Can you explain this answer?
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The starting line current of a 415V,3−phase, delta connected ind...
At starting slip, S=1
Current Drawn α voltage
Current Drawn α voltage
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The starting line current of a 415V,3−phase, delta connected ind...
The starting line current of a 415V, 3-phase motor depends on the motor's power rating and the starting method used. There are different starting methods such as direct-on-line (DOL) starting, star-delta starting, and auto-transformer starting.
For DOL starting, the starting line current can be estimated using the formula:
Starting Line Current = (Motor Power in kW) / (√3 * Motor Efficiency * Motor Power Factor * Line Voltage)
For example, if the motor power is 100 kW, motor efficiency is 0.9, motor power factor is 0.85, and line voltage is 415V, the starting line current would be:
Starting Line Current = (100 kW) / (√3 * 0.9 * 0.85 * 415V) = 150.2 A
For DOL starting, the starting line current can be estimated using the formula:
Starting Line Current = (Motor Power in kW) / (√3 * Motor Efficiency * Motor Power Factor * Line Voltage)
For example, if the motor power is 100 kW, motor efficiency is 0.9, motor power factor is 0.85, and line voltage is 415V, the starting line current would be:
Starting Line Current = (100 kW) / (√3 * 0.9 * 0.85 * 415V) = 150.2 A
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The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer?
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The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer?.
The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The starting line current of a 415V,3−phase, delta connected induction motor is 120A, when the rated voltage is applied to its stator winding. The starting line current at a reduced voltage of 110V, in ampere, is _________.Correct answer is between '31,33'. Can you explain this answer?.
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