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What is the phase voltage inside a motor if one phase is lost and what is the voltage between the other two phases?
Wiki User
∙ 10y ago
The phase voltage is usually constant and determined by the supply voltage.
Wiki User
∙ 10y ago
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How do you check to see if electric motor windings are delta or Y?
in a delta configuration the current is split between the phases, as opposed to a wye configuration where the current will be equal on all phases. and vice versa for voltage.
Is it amps measure between two phases when motor running?
The meaning of your question is not obvious, but at no time would/should the phases be connected together. As amps is a measure of current, there would be nothing to measure between the phases.
How do I calculate the watts used by a service panel using the amps of the three phases do I sum the current and multiply by the voltage or do I average the 3 phases' current x V x 1.73?
Sum the current and multiply by the line to ground voltage. Never use the phase to phase voltage unless you're dealiing with a dedicated load using all three phases like a 3 phase motor.
What is the different between 3phase plus N generator coil and motor coil?
Generator coils generate the voltage, motor coils use the generated voltage.
Will 3 phase AC motor stay running if you remove 1 phase?
Yes but it will not start. Usually if you lose one phase the current will go higher on the other phases and the motor overload protection will disconnect the motor from the supply voltage.
What is the difference between a motor starter and a contactor?
Motor started will have overloads the contactor connect es line voltage.
Will a pinched wire cause a 3 phase motor to go bad It was actually 2 half broken wires barely touching so 2 phases were getting the correct voltage 1 minute and vibration would cause to loose volt?
It could do so. If the circuit was correctly wired it should have blown the fuse or tripped the circuit breaker before the motor burnt out so get this checked before you replace the motor. A three phase motor will overheat and eventually burn out if all three phases are not connected and giving the same voltage. If the motor is expensive then buy and install a special switch which will cut the supply to the motor if the phases are not properly in balance. this will usually cost about 1/10 of the motor price, a good return on investment.
What is the operating principle of thyromat control system for cranes?
The THYROMAT is connected in series with the stator supply voltage. The control unit varies the stator voltage of the slip-ring motor by adjusting the firing angle of the inversely connected (parallel) thyristors in each of the three phases. The motor torque is proportional to the square of the stator voltage (T a V2 - where T is the motor torque and V is the stator voltage). The speed of the motor is measured by the frequency of the rotor. Reversing the direction of motor rotation is achieved by switching externally mounted reversing contactors at zero current.
How you calculate no load current of 30 hp motors?
You need to specify the rating , voltage and phases of the motor to answer this question.
Motor controllers must be marked with?
Motor controllers must be marked externally with multiple things such as the manufacturer's name or some form of ID, the number of phases, the voltage, the current, the ID of the motor being controlled, current rating or trip setting, and the kW which is the horsepower.
What should be the maximum difference between two phases in three phase induction motor at full load?
120 degrees
What is the voltage tolerance of a standard electric motor?
the voltage tolerance of a standard electric motor is
