0
All motors have the ability to rotate in either direction. The motor has to be connected to additional equipment to make this happen. In a three phase motor a reversing magnetic contactor is used and in single phase motor usually a drum switch is used.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What does the phases on a nameplate of a motor mean?
On a three phase motor, the phases give you direction for how to hook the motor up to make it spin one direction vs. the other. If you hook up such a motor blindly with all three phases, it may spin in the opposite direction you want; to fix, you swap any two of the three phase connections.
What has to occur for an electric motor to spin freely?
In order for an electric motor to spin freely you will have to make sure you have one thing. You have to have the electric current for the motor to run freely.
What happens if the direction of current at the terminals of a series motor is reversed?
No changes will occur by wiring a 110 volt motor in reverse polarity, rotation will always be the same. Some single phase motors are designed to be reversed ,but that is a function of the relationship of start windings and capacitors and requires some wiring changes in a motor junction box or an end terminal housing, not by just changing the incoming power.
Why the DC motor is call as synchronous motor?
A 60Hz synchronous motor spins at synchronous speed - if it's a two pole motor it will spin at exactly 1800 rpms. An asynchronous motor will spin at a speed lower than the power supply frequency - a symilar asynchronous motor may spin at 1700 rpms.
How could you reverse the rotation of the motor?
The motor will spin the direction that the positive lead is on. So if the shaft is pointing towards you, you will need to put the positive lead on the left side to make it turn counter clockwise.
What does the phases on a nameplate of a motor mean?
On a three phase motor, the phases give you direction for how to hook the motor up to make it spin one direction vs. the other. If you hook up such a motor blindly with all three phases, it may spin in the opposite direction you want; to fix, you swap any two of the three phase connections.
How do you calculate the rpm of a motor with a known number of poles and a frequency of 60 Hrtz?
A synchronous motor will spin at the system frequency. 60 Hz translates into 60*60 = 3600 direction changes per minute. If this is a two pole motor (one north and one south), it will spin 1 rotation per direction change. If it is a four pole motor (two north and two south), it will spin 1/2 rotation per direction change. If this is an induction motor, it will spin at a frequency slightly less than an equivalent synchronous motor; this frequency difference is referred to as slip.
Why won't Maytag Washer spin?
The motor runs in one direction to agitate, in the opposite direction to spin. If the reversing switch is bad, the brake will not release, the tub won't spin, and you may smell the belt getting hot due to slippage.
What direction does a bullet spin?
Direction of spin is dependent on the direction of the rifling on the inside bore of the barrel. A bullet will spin the same direction as the rifling.
Do break dancers that spin on their heads spin in the opposite direction when they are south of the Equator?
No. This is a matter of choice. They may spin in whichever direction they desire.
Does spinning water always spin in the same direction?
Does spinning water always spin in the same direction?
Does the Earth spin on its axis in the same or opposite direction as the moons orbit?
The direction of the Earth's spin and the direction of the Moon's orbit is the same - counterclockwise
Describe how the motor continues to spin when connected?
the motor is 2
What does an electromagnet do when it is connected with wires and a motor?
It causes the motor to spin.
What direction does a typhoon spin?
Counterclockwise
The spin quantum number of an electron can be thought of as describing?
direction of electron spin
Do tornadoes always spin in the same direction?
No, most tornadoes in the northern hemisphere spin counter clockwise, while most in the southern hemisphere spin clockwise. Additionally about 0.1% of tornadoes spin in the "wrong" direction for their hemisphere.
