Kataeb
Member
Kindly, we connected electrical power, 3x380 vac, between a supply station and an electric cabinet, away 180 meters.
The calculation software proposed to use 3 aluminum cables, each 3x240 mm2, but did not mention how to practically connect them.
We tried first to use each cable for 1 phase, by connecting its three wires together.
But we noticed that when we put the load on, the voltage drops by more then 15%, at the electric cabinet side.
Then, we tried to connect 1 color wire from each cable, together with the same color wires from the other cables, to 1 phase, and the problem was solved.
Can you explain why this happened ?
What is the difference between using a complete cable for each phase, or a wire from each cable ?
The calculation software proposed to use 3 aluminum cables, each 3x240 mm2, but did not mention how to practically connect them.
We tried first to use each cable for 1 phase, by connecting its three wires together.
But we noticed that when we put the load on, the voltage drops by more then 15%, at the electric cabinet side.
Then, we tried to connect 1 color wire from each cable, together with the same color wires from the other cables, to 1 phase, and the problem was solved.
Can you explain why this happened ?
What is the difference between using a complete cable for each phase, or a wire from each cable ?