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Bumped by Community user
minor fixes
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edit approved Jan 28, 2019 at 16:00
Electric_90
edit approved Jan 28, 2019 at 16:00
Electric_90
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enter image description here

enter image description here

In the firstfollowing picture, it shows that a black box at right. the circuit inside the black box is a 3 phase load balanced delta connection circuit. the line voltage of it is 500V and the power factor of it is 0.8 lag. then, I wanna get the voltage difference between A and B.

enter image description here

In the second picture, it shows the formula to get voltage wanted. However, I don't know why that there is a 3^(1/2) inside the formula. canCan someone help me?

btwenter image description here

BTW, don't use the trick to change the delta circuit to star connection circuit. even though I know that it will be much easier to get the answer. I just wanna know how theto get the voltage between A and B by delta connection.

enter image description here

enter image description here

In the first picture, it shows that a black box at right. the circuit inside the black box is a 3 phase load balanced delta connection circuit. the line voltage of it is 500V and the power factor of it is 0.8 lag. then, I wanna get the voltage difference between A and B.

In the second picture, it shows the formula to get voltage wanted. However, I don't know why that there is a 3^(1/2) inside the formula. can someone help me?

btw, don't use the trick to change the delta circuit to star connection circuit. even though I know that it will be much easier to get the answer. I just wanna know how the get the voltage between A and B by delta connection.

In the following picture, it shows that a black box at right. the circuit inside the black box is a 3 phase load balanced delta connection circuit. the line voltage of it is 500V and the power factor of it is 0.8 lag. then, I wanna get the voltage difference between A and B.

enter image description here

In the second picture, it shows the formula to get voltage wanted. However, I don't know why that there is a 3^(1/2) inside the formula. Can someone help me?

enter image description here

BTW, don't use the trick to change the delta circuit to star connection circuit. even though I know that it will be much easier to get the answer. I just wanna know how to get the voltage between A and B by delta connection.

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Ezra Ma
Ezra Ma
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how to get the line voltage of 3 phase delta circuit with power factor known at first?

enter image description here

enter image description here

In the first picture, it shows that a black box at right. the circuit inside the black box is a 3 phase load balanced delta connection circuit. the line voltage of it is 500V and the power factor of it is 0.8 lag. then, I wanna get the voltage difference between A and B.

In the second picture, it shows the formula to get voltage wanted. However, I don't know why that there is a 3^(1/2) inside the formula. can someone help me?

btw, don't use the trick to change the delta circuit to star connection circuit. even though I know that it will be much easier to get the answer. I just wanna know how the get the voltage between A and B by delta connection.