Select suitable three-phase motors for various given application giving details of ratings, starter types and control gear requirements. I. A motor is required for an industrial air-extraction system, and you are asked to give advice on the selection of a suitable motor. The fan speed should be constant between 0 rpm and 2900 rpm, say two speeds. The maximum torque to nominal torque ratio should be no more than 4.0, the torque rating should be at around 100Nm. The power factor should not be lower than 0.8 for power factor correction reasons. A 100A miniature circuit breaker (MCB) will be used to protect the motor.
Select suitable three-phase motors for various given application giving details of ratings, starter types and control gear requirements. I. A motor is required for an industrial air-extraction system, and you are asked to give advice on the selection of a suitable motor. The fan speed should be constant between 0 rpm and 2900 rpm, say two speeds. The maximum torque to nominal torque ratio should be no more than 4.0, the torque rating should be at around 100Nm. The power factor should not be lower than 0.8 for power factor correction reasons. A 100A miniature circuit breaker (MCB) will be used to protect the motor.
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Transcribed Image Text:Select suitable three-phase motors for various given application giving details
of ratings, starter types and control gear requirements.
I.
A motor is required for an industrial air-extraction system, and you are
asked to give advice on the selection of a suitable motor.
The fan speed should be constant between 0 rpm and 2900 rpm, say two
speeds.
II.
III.
The maximum torque to nominal torque ratio should be no more than 4.0, the
torque rating should be at around 100Nm. The power factor should not be
lower than 0.8 for power factor correction reasons.
A 100A miniature circuit breaker (MCB) will be used to protect the motor.
The enclosure should meet IP55 standard, and the feet are to be bolted to the
stator and made of cast iron. From the ABB motors data sheet link attached
select a suitable motor, giving the motor type number.
A motor is also required for an industrial wood chipper.
Justify the selection of both motors by explaining your choice based on
the
information provided and state the power rating, current, operating voltages,
etc.
Describe how the motors are going to be started and controlled.
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Step 1: Determine the given applications
VIEWStep 2: Motor for an industrial air-extraction system
VIEWStep 3: To start and control the motor for an industrial air-extraction system
VIEWStep 4: Motor for an industrial wood chipper
VIEWStep 5: To start and control the motor for an industrial wood chipper
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