Transmission System Components and Faults

The transmission system is a crucial component of an electrical power system. It is responsible for transmitting high voltage electrical power from the power station to the distribution system. The transmission system comprises several components, including transformers, alternators, overhead lines, and underground cables. Each of these components is prone to faults, but some are more prone than others.

Overhead Lines Prone to Faults

The most prone component of the transmission system to faults is the overhead lines. These are the power lines that run on poles or towers and are exposed to the environment. Overhead lines are prone to faults due to several reasons, including:

1. Atmospheric Conditions: Overhead lines are exposed to atmospheric conditions such as lightning, wind, and rain, which can lead to faults.

2. Physical Damage: Overhead lines can be damaged due to physical contact with objects such as trees, buildings, and vehicles.

3. Corrosion: Overhead lines are made of metal, which can corrode over time, leading to faults.

4. Animal Interference: Animals can come into contact with overhead lines, leading to faults.

Advantages and Disadvantages of Overhead Lines

Overhead lines are the most common method of transmitting power, and they have several advantages, including:

1. Cost: Overhead lines are generally cheaper to install and maintain than underground cables.

2. Easy Access: Overhead lines are easily accessible for maintenance and repair.

However, overhead lines also have some disadvantages, including:

1. Aesthetics: Overhead lines can be unsightly and can have a negative impact on the environment.

2. Safety: Overhead lines can pose a safety hazard to people and animals due to the high voltage they carry.

Conclusion

In conclusion, the overhead lines are the most prone component of the transmission system to faults due to their exposure to atmospheric conditions, physical damage, corrosion, and animal interference. Despite their disadvantages, overhead lines are still the most cost-effective and commonly used method of transmitting power.

Portion of the transmission system is more prone to faults is the portion which is least protected.
Overhead lines are least protected in terms of protection from enviroment.