Single-Phase Neutral Wire Size Comparison
In a single-phase AC supply, the neutral wire acts as the return path for the electrical current after it passes through the load.
For standard single-phase circuits with balanced loads, the current flowing in the neutral wire is typically equal to the current flowing in the line (phase) wire.
To ensure safety and prevent overheating, both the line conductor and the neutral conductor must be capable of carrying this current equally.
Therefore, the neutral wire should have the same cross-sectional area as the line wire.
Result: For a single-phase supply, the size of the neutral wire should be equal to the size of the line wire.
Important Questions from Distribution Systems
Which of the following distribution system is used for combined power and lighting load?
The residential distribution system employs,
A ______ transformer is usually mounted on a pole of the plinth.
A three-phase four-wire system is used for:
The most commonly used nominal primary distribution voltage is ______.
