Wildsoldier PE
Well-known member
- Joined
- Aug 19, 2010
- Messages
- 290
- Reaction score
- 14
I went thru the morning section on this test and I dont agree with question 11 result.
For complex power
At 3 phase not single phase
I line = S(total)/(Vline to line x Square(3))
This equation doesnt matter if it is Y or Delta
The result show that the I line = 794A, According to the description is not required to use Square(3).....I accept that if the motor is a 2.4KV is line to line and the motor is a single phase motor. But the statement says that the motor is 3-phase so you need to multiply 2.4KV line to line by square of 3 to get the 3 phase voltage.
answer shall be 458Amps
For complex power
At 3 phase not single phase
I line = S(total)/(Vline to line x Square(3))
This equation doesnt matter if it is Y or Delta
The result show that the I line = 794A, According to the description is not required to use Square(3).....I accept that if the motor is a 2.4KV is line to line and the motor is a single phase motor. But the statement says that the motor is 3-phase so you need to multiply 2.4KV line to line by square of 3 to get the 3 phase voltage.
answer shall be 458Amps