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If you are looking for total load just add the loads together. If you are looking for sizing of a service to feed the loads, factoring is brought into the equation and it is governed by rules in the electrical code.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoThree phase service will cost you more. Contact your utility to determine how much more. Three phase equipment generally will be more efficient. Determine the efficiency of your single phase equipment, then compare to the three phase equipment that would replace it. Factor in the cost of purchasing the three phase equipment, and you can determine a "pay back" time.
Wiki User
∙ 12y agoIt depends upon what you know about the load. For example, if you know the apparent power of the load, expressed in volt amperes, then you could manipulate the following equation to make the line current (IL) its subject:
Apparent Power = 1.732 UL IL
Wiki User
∙ 12y agoIf the three-phase system is supplying a balanced load, then the line currents can be calculated by manipulating the following equation for IL:
P = 1.732 x VL IL x power factor
If the three-phase system is supplying an unbalancedload, then it becomes significantly more complicated!
Wiki User
∙ 16y agoWith a clamp type amp probe around each individual power line. you can pick one up at any sears or Home Depot.
Wiki User
∙ 13y agoA 3 phase 20 amp electrical appliance uses 20 amps per phase. Not 6.6 amp!
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Total instantaneous power supplied by a 3-phase ac supply to a balanced R-L load is?
sinusoidal with non-zero average.
Is 10 kva supply to 3 phase load is equal to 10kva supply to single phase load?
Yes of course!! 10 kva electrical power is 10 kva electrical power either it would be three phase or single phase. But other factors i.e. current, voltage changes accordingly. Actually this question is quit confusable. Because in 3phase system, if each phase gives 10kva power (single phase power = 10 kva) then 3 phase power will be 10 X 3 = 30 Kva If we go leteratualy towasrds the question, then the asnwer will be - No. becasue 10 kva supply to 3 phase load will be 3phase supply(i.e440V) & 10kva supply to single phase load will be single supply (i.e 250V).
What is the phase angle difference between inductive load and resistive load?
The phase angle is defined as the angle by which the load current leads or lags the supply voltage.For a purely-resistive load, the phase angle is zero, because the load current is in phase with the supply voltage.For a purely-inductive load, the phase angle is 90 degrees lagging.But few loads are either purely-resistive or purely-inductive; typically, most loads are resistive-inductive. This means that, typically, the phase angle lies somewhere between zero and 90 degrees.
How capacitor and resitor in a circuit effect the phase of input voltage?
A capacitor and a resistor has no effect on the supply voltage; however, this particular load combination will cause the load current to lead the supply voltage by some angle termed the 'phase angle'.
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.
Why AC three phase apparatus are more popular compared to single phase?
the main advantage of having three phase supply is that the total load of house or a factory is divided into three pars so that none of the line is over loaded.moreover the three phase also provide 400 V which can also used to operate some special appliances.
Total instantaneous power supplied by a 3-phase ac supply to a balanced R-L load is?
sinusoidal with non-zero average.
Is line to line fault a 3 phase fault?
'Line conductors' are the three 'hot' conductors (A-B-C) that connect a three-phase supply to a three-phase load. In some cases, a pair of line conductors (e.g. A-B, B-C, or C-A) is used to supply a single-phase load. A 'line fault' can be a short-circuit fault between all three, or any two, of these line conductors -whether they supply a three-phase load or a single-phase load.
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 10 kva supply to 3 phase load is equal to 10kva supply to single phase load?
Yes of course!! 10 kva electrical power is 10 kva electrical power either it would be three phase or single phase. But other factors i.e. current, voltage changes accordingly. Actually this question is quit confusable. Because in 3phase system, if each phase gives 10kva power (single phase power = 10 kva) then 3 phase power will be 10 X 3 = 30 Kva If we go leteratualy towasrds the question, then the asnwer will be - No. becasue 10 kva supply to 3 phase load will be 3phase supply(i.e440V) & 10kva supply to single phase load will be single supply (i.e 250V).
You have three phase electric load of 29.3Kw what is thesuitable cable to feed this load if the distance between the supply and load is 270metres?
yes
What will happen if single phase load is connected to three phase circuit?
To obtain a single-phase supply from a three-phase supply, the single-phase load must be connected either (a) between any pair of line conductors, or (b) between any line conductor and the neutral conductor. Of course, the voltage obtained from either of these connections must match the voltage rating of the load.
What is the phase angle difference between inductive load and resistive load?
The phase angle is defined as the angle by which the load current leads or lags the supply voltage.For a purely-resistive load, the phase angle is zero, because the load current is in phase with the supply voltage.For a purely-inductive load, the phase angle is 90 degrees lagging.But few loads are either purely-resistive or purely-inductive; typically, most loads are resistive-inductive. This means that, typically, the phase angle lies somewhere between zero and 90 degrees.
What is the difference between single and three phase on line UPS?
The difference between a single and a three phase online UPS is a 3 phase can supply a 100% unbalanced load on its output without affecting its performance. A single phase cannot supply a 100% unbalanced load on the output without affecting its performance.
How capacitor and resitor in a circuit effect the phase of input voltage?
A capacitor and a resistor has no effect on the supply voltage; however, this particular load combination will cause the load current to lead the supply voltage by some angle termed the 'phase angle'.
What is phase conductor?
There is no such thing as a 'phase conductor'. The correct term is 'line conductor'. Line conductors are the three energised conductors that supply a three-phase load.
Why power factor can not be unity?
Power factor can be unity. If the load is purely resistive, then the load current and supply voltage are in phase, and the load will have unity power factor.
