0
there is no thermal run out and no braker down or tripping....sunlonaosman
<<>>
Motor insulation is tested with a megger. On the whole megger testing is non destructive. What happens is a DC voltage is applied to the motor or winding under test. It is an insulation test to see is the insulation has been injured in any way to cause a short circuit when normal power is applied to it. On my megger there are 3 ranges 300V, 750V, and 1000 volts. Applying the proper voltage is essential to not damaging the device you are testing. Working voltages up to 240 volts should use the 300 range. Working voltages up to 600 volts use the 750 volt range and working voltages above 600 use the 1000 volt range. As you can see if you used the 1000 volt range on a device that had a working voltage of say 24 volts you could damage the insulation just by testing it. So meggering a device is non destructive if you use the tester as its instructions tell you to.
Add your answer:
Earn +20 pts
How can copper be removed from an electric motor?
Take it apart and burn the insulation out, if you can, in a pile of brush. Or you could also take a torch to it and see if that gets the insulation out. If you use flame to melt the copper, beware of toxic fumes from burning rubber and plastic insulation.
What is earthing of electric motor?
This is avoided by grounding the motor frame. Both methods effectively produce a solid electrical connection straight to the stator laminations, allowing any insulation failure to be grounded via the end-ground user's conductor. Earthing is a technique in preventing electric shocks. To start, virtually all electric motors require grounding. The neutral earthing is given in the generator, transformer, motor, and other electrical devices by connecting the non-current carrying section to the neutral earthing.
What happens to an electric motor is it over heats?
If a fuse fails to blow or a cut-off doesn't come into play, the insulation on the wires will melt and cause a short circuit.
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 is a machine that turns mechanical energy into electrical energy?
Electric motor.
What is the cause of an electric motors electric field to collapse?
The collapse of an electric motor's electric field can be caused by factors such as overloading the motor, overheating, mechanical damage, or a fault in the motor's windings. These issues can lead to a breakdown in the insulation system, resulting in a collapse of the electric field and potential failure of the motor. Regular maintenance and monitoring can help prevent these problems.
How can copper be removed from an electric motor?
Take it apart and burn the insulation out, if you can, in a pile of brush. Or you could also take a torch to it and see if that gets the insulation out. If you use flame to melt the copper, beware of toxic fumes from burning rubber and plastic insulation.
What is goodness factor?
Goodness factor is a metric developed by Eric Laithwaite to determine the 'goodness' of an electric motor.
What is earthing of electric motor?
This is avoided by grounding the motor frame. Both methods effectively produce a solid electrical connection straight to the stator laminations, allowing any insulation failure to be grounded via the end-ground user's conductor. Earthing is a technique in preventing electric shocks. To start, virtually all electric motors require grounding. The neutral earthing is given in the generator, transformer, motor, and other electrical devices by connecting the non-current carrying section to the neutral earthing.
What is the function of an electric motor in terms of electric power and motor?
The electric motor changes electric energy into mechanical energy.
What happens to an electric motor if it is over heated?
If a fuse fails to blow or a cut-off doesn't come into play, the insulation on the wires will melt and cause a short circuit.
What happens to an electric motor is it over heats?
If a fuse fails to blow or a cut-off doesn't come into play, the insulation on the wires will melt and cause a short circuit.
What size hydraulic motor is needed to be equal to a 3 hp electric motor?
To determine the size of the hydraulic motor needed to be equal to a 3 hp electric motor, you would need to calculate the hydraulic motor's power output in horsepower. Hydraulic motors are generally less efficient than electric motors, so you may need a larger hydraulic motor to match the power output of a 3 hp electric motor. Consult the manufacturer's specifications and consider factors such as efficiency and operating conditions.
Which conversion does an electric motor make?
electric energy to mechanical energy
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.
Why it is that mechanical energy is the output of an electric motor?
Because that is the purpose on an electric motor.
The operation of an electric motor depends on?
The operation of an electric motor depends on the interaction of magnetic fields, passing of electric current through coils of wire (armature), and the resulting electromagnetic forces that cause the motor to rotate. The direction of the current and the arrangement of the magnetic fields determine the direction of the rotation, while the flow of current and the strength of the magnetic fields dictate the speed and torque of the motor.
