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Motor is running as a single phase motor with lower speed and creating noise. In this situation it will drawing higher current. If it runs for long time then insulation may get damage and ultimately burnout the winding.
CommentThis is where the correct terminology is important. Do you mean 'phase' or do you mean 'line'? If you mean 'phase', then you mean that one of the field windings has failed; if you mean 'line', then you mean one of the supply conductors has failed.
If you lose a phase, then the machine behaves like an open-delta or open-wye (depending on its configuration); if you lose a line, then you have two field windings in series with each other, in parallel with the third. Two completely-different situations.
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Why one phase shows 0 Amps while a delta connected 3 phase induction motor runs?
Cause 2 phase is applied to the motor and another phase is disconnected ... in this condition ur motor cannot run longer ,it will trip on over current or burn ur motor winding .
What is phase fail protection?
In a 3 phase power system, say for a 3 phase motor - it is necessary to have all three phases intact to be able to run the motor efficiently, safely. If any one phase fails , the motor still continues to run but the temperature raises rapidly, due to high current. The motor winding can burn out, can trip off due to overload. Hence a device called phase failure relay is connected. It constantly reads all the 3 phases and cuts off the main supply in case any one phase fails.
Can you replace a 480-240V 3-phase motor with a single phase motor as a temporary replacement or will it burn it out?
Yes, you can, and it won't burn out IF>>> the horsepower rating is the SAME. Pay attention to wiring and motor rotation. Also check the voltage: the motor voltage must be the same as the voltage between two hots of your 3 phase system. You will only use two hots as this is a single phase motor.
What would happen to a three phase motor if two of the three phases are lost?
AnswerThe motor will keep on running for a while but the current will rise on the other two phases and the overload relay will fall out, if its properly set and the motor will stop if the overload relay is set to high the motor will burn outin the start Motor will start to shake the if there is no protection devices for over-load on the motor it will simple explode:)I have a personal experment on that.
What is impact ampere in 50Hz motor connected to 60Hz?
What effect will be there on the motor (Induction) output power when a 100kW 50hz motor is connected to a 60hz power supply.
What is the length of time that a motor can safely run on starting and full load current?
It depends on the insulation provided in winding, motor can safely run on full load current. and over that it may burn but depends on cooling system of the motor. Motor can burn if insulation fails, failure of insulation depends on only the temperature rise.
What will happen when three phase induction motor run with two phase supply?
Yes, a three phase motor can run on a DC supply. You will need to provide an inverter, or a motor-generator set to do so. (In practical terms, the answer is no, because the costs will be high for any kind of significant power.)
What happens when you connect a 110 volt motor to 220 volts?
On a three wire supply system if you connect the two 110V wires together and they are across the phase they will short out and trip the breaker. If the two 110V wires are supplied from across the phase and connected to a motor then the motor will run. If the 110V wires are on the same phase nothing will happen.
Why motor burn at single phasing?
A 3-phase motor will not run on single-phase power or if one of the three phases is disconnected. If the motor is not running, there is no back-EMF generated in the coils, and they draw excessive current, thus overheating.
Can a 3 phase motor be converted into a single phase motor?
A three-phase motor will not start if one or two phases aren't connected. If while running one or two phases "drop out", it will continue to run for awhile, but will eventually burn out, unless connected to a motor saver.
How do you wire 3 phase power to 1 phase power diagram?
In an emergency and for a short period of time you can single phase a three phase motor but the motor will be loud, have terrible power characteristics and depending upon the use will burn up rather quickly. You should never try to run this in other than a life threatening emergency situation, the motors are not designed for it. Normally you don't. <<>> A three phase motor will not start on single phase. If the motor was started on three phase and loses a phase, it will stay running at a lower percentage of efficiency. Now a days the motor protection will not let a three phase motor run in a single phasing condition. All three phase legs of the motor are monitored and in a single phase condition the other two legs of the motor draw a higher current. This higher current is sensed by the motor's overload heaters in the motor's contactor and take the motor off line by opening the motor contactor. Now to the question, any two legs of a three phase system in electrical terms is known as single phase. As long as the three phase voltage matches the voltage needed in the single phase power diagram it can be connected to operate single phase equipment.
Why wont windshield wipers work on vw jetta?
maybe the motor is burn..... maybe the motor is burn..... maybe the motor is burn..... maybe the motor is burn.....
