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If you are referring a common lead as meaning a neutral of a three phase system, the three phase voltage has to be 208 volts. This type of connection is in a wye configuration. It is found by this formula 208/1.73 = 120 volts. This connection will supply 120 volts between any one of the three supply legs and the grounded neutral.
What else can I help you with?
Why 3 phase line 440 volt instead of 660volts?
common phase
What is the minimum volt rating of wire used in a 3 phase 4160 volt phase to phase system?
5000 volt
You are measuring 480 volt from phase to phase and 280 volt phase to ground but one leg measures 440 volt phase to ground why?
Check for a blown fuse in one of the phase legs.
What is the voltage between each lead of a 480 volt three phase delta secondary?
A 480 v three-phase system has 480 v between live lines and 277 v from each line to the neutral. This type of supply is common in North America for supplying for example small factories that need more power than a 120/208 v three-phase system can supply.
Can you wire up a 240 volt single phase water heater to 277 volt single phase?
no
In a 240 volt single phase circuit A phase is 4000 watts B phase is 7000 watts what is the neutral load?
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
How do you get a 380 volt 3 phase motor to run on a 220 volt 3 phase power source?
Use a transformer.
How do you convert 200 volt 3 phase without a common lead to power a single phase 200 volt ac motor with separate phase two speed connectors they are marked Run Start and Common?
Any two phases of the three phase can be used.Connect one phase to the Common and the other to both the Run and the Start.The Common means that it has a common connection with the Run winding and the Start winding. When the circuit is energized both the Run and the Start windings will be energized to start the motor turning (motor needs the extra torque provided by the Start winding to get the motor spinning). Once the motor reaches 75% of normal operating speed the centrifugal switch that is in series with the Start winding will open, removing power from that part of the circuit and the Run winding will keep the motor spinning.
How do you change a 3 phase 440 volt motor to a 3 phase 220 volt motor?
You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.
Can you use 220 Volt 3 Phase as 208 Volt 3 Phase?
Yes by using a 3-phase transformer. The size depends on how much power has to be converted.
What transformer do you need if you have primary voltage of 600 3 phase and require 240 volt 1 phase?
A single phase 600 to 240 Volt transformer using two phases of the three phase primary.
Can you tape a 480 volt color wire with 120 volt phase tape?
No, it is not safe or recommended to tape a 480 volt color wire with 120 volt phase tape. The colors denote different voltage levels, and using incorrect voltage tape can lead to electrical hazards and potential safety risks. It is important to always use the appropriate voltage-rated materials as per industry standards and regulations.
