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Feeder sizes are based on the amperage of the connected load. Once that is found there are tables in the electrical code book that state what the wire size is for that particular amperage.

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12y ago

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How many feeder you can use for chiller?

One feeder will do the job. The definition of a feeder in the electrical trade is a set of conductors that supply a source to a load. The sizing of the feeders will depend on what the load current is. The wire count of the feeder will be dependant upon whether the load is single phase or three phase.


Condition of three phase in which there is no need of neutral?

A delta-connected system is described as being a three-phase, three-wire, system, and doesn't have a neutral. But a balanced star (wye) connected load (e.g. a three-phase induction motor) doesn't actually require a neutral.


How do you calculate the number of turns that are required for the coils of three phase AC motor?

There is software that can be downloaded to help calculate the number of turns for a three phase motor. There are also diagrams which can be found for the most frequently used calculations.


How to Calculate three phase watts with unbalanced phase current?

You will need to determine the power per phase, and add them up to give the total power of the three-phase load. To do this, you will need to multiply the phase-voltage by the phase current by the power factor -for each phase.


How do you calculate low phase voltage of a three phase four wire system without using voltmeter?

The formula you are looking for is - phase voltage/1.73 = phase to neutral voltage.


How do you calculate how to split a 7.5Kw load over 3 phases?

A 7.5 kW three phase load will be balanced by the manufacturer. When connected to a three phase source the line current on each phase will be equal.


How do you calculate 3 phase load from single phase values?

If you have three adjacent houses each with a single-phase supply taken from different phases in a three-phase cable in the street, the total power is equal to the sum of the powers in each of the three phases.


How do you calculate the load percentage of a three phase UPS?

output power/Rated power


Why is it called single phasing?

On a three phase system you have incorporated into it a potential of three single phase systems. A-B, B-C, C-A. Any two legs of a three phase system can be used as a single phase load. On a three phase system, be it a motor or a service, if one of the legs drops out for what ever reason, the remaining two legs are known as single phase. This is how the terminology became single phasing. As a side note a motor will run in a single phase condition, it just will not start. In motor control, a single phase condition is prevented by the use of overload heaters on all three voltage legs.


What happens when a three phase air condition shows E5 on the display board?

if you will experience then you will know


What is the difference between three phase load and phase supply?

How much current equipments are drawing from three phases (combined or individual) is called three phase load and how much supply we are getting from source is called three phase supply. Ex. In INDIA single phase supply is 220 volt ac with neutral. So in three phase supply all RYB phases should be 220 volts ac with neutral individually. If we calculate with phase to phase than it shoulb be 415 volts ac.


Is air conditioner works on 1 phase and how it works on 3 phase also?

If an air condition is single phase, then it can only be connected to a single phase source. Since any two legs of a three phase source are considered single phase, there is no conflict, except to note that the individual phases of the three phase source match the voltage requirement of the air conditioner.