0
It depends on if the motor is an AC motor, or DC motor. DC motors only run backwards when the voltages get crossed between + and -.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Which motor rotate above synchronous speed?
An induction motor rotating at higher than synchronous speed would be generating power, thus would be a generator. No motor operating as a motor runs above synchronous speed.
Can a bad circuit breaker on a 3 phase motor cause the motor to run backwards?
No. If the motor runs backwards, swap any two phases to reverse the rotation, like this: Old wiring: phase A - brown wire - motor lead T1 phase B - yellow wire - motor lead T2 phase C - orange wire - motor lead T3 New wiring: phase A - brown wire - motor lead T2 phase B - yellow wire - motor lead T1 phase C - orange wire - motor lead T3
If the live and neutral connection in an electric meter are reversed does the meter rotate reverse?
In some cases yes, but it depends on the motor's application (use). For example, the electric motor in a batery-operated toy car will turn backwards if you reverse the polarity. Other more complex motors won't work at all, or can be damaged if you reverse the polarity. it is an AC motor that runs the Wattmeter, it is all about the direction of current flow to make the meter run backwards you would need to swap the incoming active and the incoming neutral with the outgoing active and the outgoing neutral, thereby reversing the meter. reversing the Active and Neutral does nothing because they already are swapping between themselves at 50 times a second or 60 depending on your location. Also if you put more current into your supply than is being draw by it then the meter will also spin backwards. eg: overdriving it with a generator.
3 Two series motors are coupled One motor runs as generator and other as motor The friction losses of the two machines will be equal when?
when both runs at same speed
Does a induction motor need excitation?
The induction motor is the special kind of motor which runs below and above the synchronous speed. which the synchronous motor runs nearly equal the synchronous speed. The operation of synchronous motor runs with dc field excited hence separate dc field current is given to the field circuit. where as the induction motor the field and main field is drawn from the same supply hence no excitation is required. But due to this separate starting mechanism has to be required in case of the single phase induction motor.
Eb runs till motor hot then cough to a stop wait 2 hours then go's again.?
I think u have it all backwards. hope that helped
What makes a Boston pencil sharpener Model 18 run backwards?
This is really a Hunt Model 18 Pencil Sharpener. It says 'Boston' on the front, but is manufactured by Hunt. There should be a sticker on the bottom that says Hunt Mfg Co., and MODEL 18, along with the UL mark and power requirements (115VAC - 2.0 AMPS - 60HZ) and the serial number. It does not run backwards when assembled correctly. It runs on 115 VAC, and if you were to reverse the wires to the motor it would still run the same way. It is possible to assemble the armature into the motor backwards and then mount the motor flipped over backwards and then it will run in the other direction. Without the armature in it, the motor is somewhat symmetrical and will fit together backwards, but when properly assembled the wires dress towards the back of the unit and make more difficult to assemble.
How can one tell the voltage of an electric motor?
It is possible to check the resistance of the motor leads compared to a known motor. You can also connect the leads to 120 volts temporarily. If the motor hums and runs slowly or not at all it is a 220 volt motor. If it runs normally, then it is a 120 volt motor. Testing should be done for only a few seconds so if the motor is designed to be run on 220 volts, you don't overheat or damage it on 120 volts.AnswerRead the nameplate information.
Does a jet have a Motor or an Engine?
It depends on what it runs on. A motor runs on electricity and an engine runs on fossil fuels. It depends on what it runs on. A motor runs on electricity and an engine runs on fossil fuels.
Which motor rotate above synchronous speed?
An induction motor rotating at higher than synchronous speed would be generating power, thus would be a generator. No motor operating as a motor runs above synchronous speed.
Why will your 1997 lumina not move forward or backwards until it runs and warms up?
I would check the transmission fluid level.
Where is edam cheese made?
In Upper Grockleland, where everything runs backwards, and as Edam is made backwards, this is where it is produced.
Can a bad circuit breaker on a 3 phase motor cause the motor to run backwards?
No. If the motor runs backwards, swap any two phases to reverse the rotation, like this: Old wiring: phase A - brown wire - motor lead T1 phase B - yellow wire - motor lead T2 phase C - orange wire - motor lead T3 New wiring: phase A - brown wire - motor lead T2 phase B - yellow wire - motor lead T1 phase C - orange wire - motor lead T3
Can Adverbs compare.?
Yes, in the example 'he runs quickly but she runs slowly'.
1969 firebird installed tachometer and it runs backwards?
Reverse the leads!
Why would a 1989 Cadallic heater motor run with the switch in the off position?
This is normal on GM vehicles. The motor always runs at a very low speed.
How do you Replace a pulley that runs the motor belt?
By replacing the motor with another circular motor.
