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How would a motor that has an open run winding react at starting time hvac?
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If the running winding and the auxiliary winding were connected in series would the motor run?
no
What wll happen if the starting winding in a split pase motor fail to energize?
The motor would not start rotating. The motor will just hum and the rotor will be stationary. If you can get the rotor to start turning the motor will still run on its run winding.I have a cement mixer that has a motor with a burnt out start winding. All I have to do is turn the barrel and the motor will start turning over. Without the start winding you have a choice of which way the motor will turn. If I turn the mixer barrel the opposite direction, the barrel will turn that way until I turn the unit off.
How many winding in DC motor?
that depends on,motor size, number of coils, company,and wire gauge. you can make a simple dc motor with just 10 winding or less. it would be very low on torque and speed though.
Principle and working of single phase induction motor?
Will the principle operation is very complex and would require a fair amount of reading in a text book. But the simple operation of a split phase motor is when a single phase motor has two windings. The main operating winding a and auxiliary winding used to create a rotating magnetic field. The main winding is large wire with lots of turns so under locked rotor conditions it is seen as a large inductive reactance and the aux. winding the smaller wire with fewer turns so it is seen a mainly resistive. This 90 degree phase shift is used to produce more starting torque. If a resistive split phase motor aux. winding is switched out shortly after starting. The aux. winding can also be phase shifted by using a capacitor installed in series with it. This is in the case of capacitor start and capacitor run motors.
What is the best type of electric motor for heavy starting loads?
The classic heavy starting load is a tram starting off from stationary, and for this the series-would dc motor is the preferred motor.
Should a starting windings in the split phase motor fail to energise what would be the result?
what will be the result if the starting winding in a split phase motor fails
If the running winding and the auxiliary winding were connected in series would the motor run?
no
What wll happen if the starting winding in a split pase motor fail to energize?
The motor would not start rotating. The motor will just hum and the rotor will be stationary. If you can get the rotor to start turning the motor will still run on its run winding.I have a cement mixer that has a motor with a burnt out start winding. All I have to do is turn the barrel and the motor will start turning over. Without the start winding you have a choice of which way the motor will turn. If I turn the mixer barrel the opposite direction, the barrel will turn that way until I turn the unit off.
What type of test equipment would you use to check the resistance between motor winding?
Ideally megger test is the best test used to check the resistance of motor winding.
Even after changing the start relay and the capacitor what would keep a Frigidaire refrigerator compressor from starting and just buzz?
Very possible that the start winding of the compressor motor is partially shorted. A grounded winding would cause a breaker to trip, however, a shorted start winding would not produce enough torque to turn the compressor and the run winding would not kick in resulting in the buzzing to stop in about 5 - 10 seconds (start winding timing out). Change the compressor motor or get a new refrigerator, depending on cost factors. Call a professional for compressor replacement unless you want a huge headache. Gary Yingling - Avon Lake, Ohio
How many winding in DC motor?
that depends on,motor size, number of coils, company,and wire gauge. you can make a simple dc motor with just 10 winding or less. it would be very low on torque and speed though.
What would the power loss be if the series field winding of dc motor connected directly across the 240 V dc supply?
Detailed Solution. For a constant back emf, flux is inversely proportional to the speed of the motor. If field winding is disconnected accidentally, the speed would dangerously increase in order to maintain the back emf of the motor
What field setting for a dc shunt motor wired in series on high voltage?
A shunt dc motor has quite different characteristics from a series motor. Wired in series, the same current passes through the armature and the field winding and it is most unlikely that a shunt motor would have a field winding that is suitable for this. Therefore a shunt motor cannot be wired as a series motor in general because its field winding is designed for only a small current.
Principle and working of single phase induction motor?
Will the principle operation is very complex and would require a fair amount of reading in a text book. But the simple operation of a split phase motor is when a single phase motor has two windings. The main operating winding a and auxiliary winding used to create a rotating magnetic field. The main winding is large wire with lots of turns so under locked rotor conditions it is seen as a large inductive reactance and the aux. winding the smaller wire with fewer turns so it is seen a mainly resistive. This 90 degree phase shift is used to produce more starting torque. If a resistive split phase motor aux. winding is switched out shortly after starting. The aux. winding can also be phase shifted by using a capacitor installed in series with it. This is in the case of capacitor start and capacitor run motors.
What would be the shunt field current of your motor if the shunt field winding is excited by?
It could be anything, it depends on the design of the motor and whether it is a high-power or a low-power motor.
How do you convert or rewire a 20HP 3 phase motor to single phase motor?
The winding design of the motor will not economically allow this to work. You would have to drive a 3 phase generator to supply it.
What is the best type of electric motor for heavy starting loads?
The classic heavy starting load is a tram starting off from stationary, and for this the series-would dc motor is the preferred motor.
