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What is the current of an 415kW 415V three-phase load with cosFI093?
47.18 Amps.Another AnswerThe equation for the total power of a balanced three-phase load is:P = 1.732 x VL IL x power factor, where the subscript, L, represents line values.So if we change the subject of the equation, for the line current, we have:IL = P / (1.732 x VL x power factor)IL = 32 000 / (1.732 x 440 x 0.89)IL = 47.18 A
What are the uses of three phase transformer over single phase and their losses?
For a given load, a three-phase system requires around 75% of the volume of copper required by a corresponding single-phase system and, so, is more economical. A three-phase supply also delivers power more or less continuously, whereas a single-phase supply delivers power in pulses. Finally, three-phase motors are self-starting and physically smaller than single-phase machines of the same power rating.
If an industrial customer of an electrical power company connects a large single phase load to a three phase power line then every user on that power line will have unbalanced power explain why?
A 'balanced' three-phase load, by definition, is one in which the load connected in each phase (either line-to-line or line-to-neutral) is identical in all respects. A single load, clearly, doesn't comply with this definition.
How do you tell if you have delta or wye power?
In Europe, low-voltage three-phase distribution is by means of a four-wire system (three line conductors and a neutral) supplied from a wye-connected transformer secondary. In North America, low-voltage is supplied from a delta-connected transformer secondary, one phase of which is centre-tapped and earthed (grounded). The single-phase supply to residences is then supplied by that particular phase, giving 240 V line-to-line and 120 V line-to-neutral. You can tell if you have a delta power when the phase voltage is equal to the line voltage and that you have a star power when the phase voltage =root 3(THE LINE VOLTAGE).
Is total amp load on a 3 phase supply divided by 3?
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.
How you can calculate current of a load when you have three phase supply with 237 volts328.4 KW Power and 0.99 cosfi?
The general equation for power in a BALANCED three-phase load is as follows:P = EL IL x power factor...where EL and IL are the line voltage and line current, respectively.So all you have to do is to manipulate the equation to make the line current the subject, and insert your figures.
When computing watts to amps for 3 phase should the voltage input be 240 or 415v?
The equation for power in a balanced three-phase system is given by:P =1.732 EL IL x (power factor)WhereEL = line voltageIL = line currentIn your example, 415 V is a line voltage.
What is the current of an 415kW 415V three-phase load with cosFI093?
47.18 Amps.Another AnswerThe equation for the total power of a balanced three-phase load is:P = 1.732 x VL IL x power factor, where the subscript, L, represents line values.So if we change the subject of the equation, for the line current, we have:IL = P / (1.732 x VL x power factor)IL = 32 000 / (1.732 x 440 x 0.89)IL = 47.18 A
What are the uses of three phase transformer over single phase and their losses?
For a given load, a three-phase system requires around 75% of the volume of copper required by a corresponding single-phase system and, so, is more economical. A three-phase supply also delivers power more or less continuously, whereas a single-phase supply delivers power in pulses. Finally, three-phase motors are self-starting and physically smaller than single-phase machines of the same power rating.
Is transmission voltage a phase to phase voltage or a phase to ground voltage?
Transmission voltage is typically specified as a phase-to-phase voltage, which is the voltage measured between two of the three phases in a three-phase power system. This is the standard method of specifying transmission voltages in electrical systems.
How do you Start three phase motors?
Three Phase Induction Motor is self starting motor so you can start it by conneting to power lines directly if the power line capacity is sufficient.
If an industrial customer of an electrical power company connects a large single phase load to a three phase power line then every user on that power line will have unbalanced power explain why?
A 'balanced' three-phase load, by definition, is one in which the load connected in each phase (either line-to-line or line-to-neutral) is identical in all respects. A single load, clearly, doesn't comply with this definition.
How do you start three phase induction motor?
Three Phase Induction Motor is self starting motor so you can start it by conneting to power lines directly if the power line capacity is sufficient.
Why is the amperage in single phase double than of 3 phase?
If I have 1 KW In 3 Phase it will give 1.54 A and In single phase it will give 4.6 AFor cosF 0.9V 415 3 phV 240 1 phIt seems the reason is because the current is carried on more wires. Also, remember that if wattage stays constant, then as voltage increases, current decreases.AnswerIt really depends on the load. Are you assumining the three-phase load to be the same as the single-phase load or, as it is likely to be in practice, three times the value of the single-phase load?But, in either case, the single-phase current will not be double the the three-phase (line) current!The equation for the load current supplying a single-phase is: I = P / (E x power factor)The equation for the line current supplying a balanced three-phase system is: IL = P / (1.732 x E x power factor)If you insert real figures into these equations, (240 V for the single-phase voltage and 415 V for the three-phase line voltage) then you will find that, when the three-phase load is threetimes that of the single-phase load, the supply currents will be exactly the same. On the other hand, if you assume that the three-phase load is exactly the same as the single-phase load, then you will find that the three-phase line current will be one-third that of the single-phase current.
What is the formula used to calculate electrical power in an ac circuit?
The following equation only works for a balanced three-phase load, that is, where each of the three phases is identical in all respects:P = 1.732 VL IL x power factor, where VL and IL represent line voltage and line current, respectively.For unbalanced loads, you must determine the power of each phase, using the following equation, and add them together to find the total power:Pp = VP IP x power factor, where VPand IP represent phase voltage and phase current, respectively.
Write dowen the relationshipbetween line and phase the 3phase system if voltageline and currentline are line value voltage power and current power are phase value?
A-for star connectionE(line)=1.73E(Phase)I(line)=I(Phase)&B-for delta connectionE(line)=E(Phase)I(line)=1.73I(Phase)
Is 220V line voltage or phase voltage?
Phase, if you are referring to line, as power line from pole.
