The six wire motor is probably a two speed or a dual voltage motor. Look on the underside of the motor's junction box. Here is where the wiring diagram of the motor is pasted. Look on the motor's name plate to see if it is a two speed motor. There will be two sets of amps and RPM and maybe voltages.
It could be that six terminals are brought out to terminal box so that it can be connected either in delta or star configuration. As stated above the name plate details would indicate the correct connection.
You don't.
If the motor wire numbers are L1, L2 and L3, it is not a single phase motor. It is a three phase motor. Also for future reference, a 220 volt single phase motor does not use a neutral.
If the motor is a three phase the most likely voltage the motor operates on will be 480 volts.
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
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.
If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
You don't.
I have never come across a three phase capacitor start motor. Any three phase motors I have worked on are induction start.
Check the motor's terminal box. If there are three service input cables - such as red, yellow and blue - plus an earth wire, then it is a three phase motor. If there are only two wires plus an earth wire, then it is single phase.
If the motor wire numbers are L1, L2 and L3, it is not a single phase motor. It is a three phase motor. Also for future reference, a 220 volt single phase motor does not use a neutral.
It sounds like you have a three phase motor that you are trying to put in where you have a single phase 120volt motor. You can purchase a three phase inverter, but the cost will exceed the cost of the new motor sized for the right wiring and voltage.
Wire, bearings, rotor and stator.
Star and delta connection
Three-wire transmission is used on balanced three-phase systems when the current is known to be equal in all three phases, for example when supplying a three-phase motor. A fourth neutral wire is used when the system is liable to have unequal currents or when multiple single-phase supplies are connected to it.
There is only one ground wire needed on any motor, single or three phase.
If the motor is a three phase the most likely voltage the motor operates on will be 480 volts.
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