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Converting a pump motor from 110 to 220v 2 hot leads and a ground is there any use for the neutral?
Wiki User
∙ 15y ago
we dont need a neutral because we had a 2 hot leads
Wiki User
∙ 15y ago
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When does a motor not need a neutral wire?
If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
You switched leads on your 3phase motor and it did not reverse?
Then it is not a three phase motor.
Which wires go where when putting a power cord on a 120V compressor motor?
In common house wiring, black is the power wire, white is the neutral, and green is the ground wire.
How do you connect a battery to a small motor?
Connecting is simple. The main issue is what kind of motor do you have? Batteries are DC. Therefore the motor must be DC or a universal motor, or a permanent magnet DC motor. The motor voltage and current requirements must match the battery's voltage and ampere-hour rating. A standard DC motor has 4 leads A universal motor has 2 leads A permanent magnet DC motor has 2 leads. The motors with 2 leads are easy: + and -- The 4 lead motor: 2 leads are "field" (F1 F2) 2 leads are armature (A1 A2) one of each goes to + (F1 A1) one of each goes to -- (F2 A2) The motor must be very small in horsepower to work off a battery. There are other more complex DC motors with more leads than 4, but there are NOT going to run on a battery.
What will cause electric motor to shock you when you touch it?
The motor winding has gone to ground internally. The ability of the motor to shock you is caused by the ground wire missing or not connected. It is this ground wire that trips the breaker in short circuit conditions and disconnects the motor from the distribution system.
How do you wire a synchorous motor?
The simplest synchronous motor has two leads which must be connected to the live and neutral of the correct supply voltage as marked on the motor.
Why ground the neutral of a 3 phase ac motor?
In a three phase motor each leg (3 phases) in the down cycle alternating at 1/60 per second servers as a neutral, you are only required to ground (green) the frame of the motor for safety. This is similar In a single phase motor wired for 240v (2 phases) the same thing happens and you are only required to ground (green) the frame of the motor for safety. From: Ken F
How many wires in a single phase motor?
There should be 2 or 3 wires. A hot, a neutral and sometimes a ground.
How do you connect a battery lead to send power to a seat motor?
the motor should have two leads, usually a black and a white. connect the white to the fusebox and the black to a ground.
How do you mega a motor 3 phase?
The megger leads are connected in the following manner. Black lead to motor ground terminal or motor frame. The other lead to one of the phase wires. Meg that coil to ground and note the reading. Do the same with the other two motor leads and note the readings. Look at all of the three reading that you have taken. Engineers like the reading to be above 5 meg. Preferred readings about 2 meg. Motor needs looking after below 1 meg.
How do you mega ohm a motor 3 phase?
The megger leads are connected in the following manner. Black lead to motor ground terminal or motor frame. The other lead to one of the phase wires. Meg that coil to ground and note the reading. Do the same with the other two motor leads and note the readings. Look at all of the three reading that you have taken. Engineers like the reading to be above 5 meg. Preferred readings about 2 meg. Motor needs looking after below 1 meg.
How do you put a 2004 Pilot in neutral with the motor turned off?
You cannot put a vehicle in neutral when the motor is turned off. You can put the vehicle in neutral while the motor is running. Then you can turn the vehicle off and the vehicle will remain neutral.
When does a motor not need a neutral wire?
If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
How do you change a direction of a motor?
DC motor: Switch your leads. AC single phase motor: Direction cannot be changed. The motor will run the same direction regardless of how your leads are terminated. AC 3 phase motor: Switch any two leads.
Does a three phase motor have a neutral?
No, three phase motors do not actually have neutral line unless you are referring to the motor control centre where a neutral line is required when your control coils and other components are single phase operated
You switched leads on your 3phase motor and it did not reverse?
Then it is not a three phase motor.
The motor states it is 230V single phase to operate. Does that mean you need two 120V lines in and just a ground with no neutral?
Answer for USA, Canada and countries running a 60 Hz power supply service. The proper terminology is L1,L2,N. N is for neutral and it is this wire that is grounded. The voltage measurement from the L1 to N will give you 120 volts. Also from L2 to N will give you 120 volts and from L1 to L2 will give you 240 volts. Single pole breakers in the panel board starting at the top, alternate between L1 and L2 all the way down to the bottom. These breakers all have 120 volt outputs. If you plug a 2 pole breaker into two slots then you get a 240 volt output because L1 and L2 are adjacent to one another. If the rating plate on this motor says 230V and it has a brown wire (the 230V "hot" or live"), a blue wire (the "neutral") and a yellow/green wire (the "earth" or "ground") it was designed for use in Europe or other world areas which use a 50Hz supply. Those wires mean it requires just one "hot", running at 230V and a neutral. In 50Hz areas that neutral is connected to earth (ground) back at the breaker panel. If you are planning to use it in a 60Hz area, such as US or Canada, it would be wise to determine exactly how the ground wire is wired inside the motor. Check it by using a test meter: if it was made in the past 30 years or so the earth/ground wire should be connected only to the frame of the motor and should not be connected to the neutral wire in any way. If you are sure that is the case, then you can use the motor but only if you do not use the 60Hz supply's neutral, which is the white wire. Connect the motor's brown wire to one of the 60Hz supply's "hots" - say the red. Then connect its blue wire to the 60Hz supply's other "hot" - say the black. (It doesn't actually matter which hot goes to which.) Be sure to connect its ground wire to the 60Hz supply's ground, which is green or bare wire, and do not connect the 60Hz supply's white neutral at all. Just leave it blanked off inside an insulated connector or wire nut.If it is an old type of 50Hz motor it might have a red (or, in newer models a brown) 230V hot wire with a black (or, in newer models a blue) neutral wire with plain green (or yellow/green) ground wire. If, using a meter, you find the motor's ground wire is linked both to the frame of the motor and to its neutral wire, that link to the neutral will have to be cut before you try to use the motor. Leave the ground wire connected only to the motor's frame. If you don't make sure that link is cut so that the neutral is no longer connected to the ground wire, you will have big problems when you hook up the motor because, back at the breaker panel, the 60Hz supply's neutral is connected to the ground, so if that link within the motor had not been removed, it would cause a short to whichever 60Hz hot (red or black) you connected to the motor's neutral wire! Note: if the motor does not have brushes running on an armature then it is a squirrel cage or similar type induction motor, which means that, running on 60Hz, it will spin at a speed 60/50 of its rated design running speed. That is 20% faster than it would spin at 50Hz, so it would be wise to check that the higher speed is suitable for the equipment you want to use the motor for. For more information see the answers to the Related Questions shown below. Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.
