Question

2 : Most frequent type of fault in DC systems is

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Answer 1

Answer:

the DC line to ground fault is the most frequent fault.

Explanation:

Answer 2

Answer:

The most frequent type of fault in DC systems is DC Line to Ground fault

Explanation:

The term DC exists used to guide power systems that utilize only one polarity of voltage or current and to refer to the constant, zero-frequency, or gradually varying the local mean value of a voltage or current.

A ground fault happens when there exists a break in the low-resistance grounding path from a tool or electrical system. The electrical current may then bring an alternative path to the ground through the user, resulting in severe injuries or death.

In the overhead HVDC transmission system, the DC Line to Ground fault exists temporarily which is generated by lightning strikes and pollution. For the underground HVDC transmission systems, the DC line to ground fault exists as the most frequent fault.

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