Surge Protection of Traction System
Q. Explain with neat sketch protection of locos against lightening surges.
Q. Explain with neat sketch protection of locos against lightening surges.
- There is a wide expansion of the track electrification worldwide.
- We often forget the hidden enemy and widespread damage that comes with overvoltage power surges.
- The easiest ways to understand are those which are derived from the lightning strikes as they can be seen.
- In general, in a typical storm more than 10000 strikes will not be visible but each can contain enough voltage to cause damage to sensitive equipment's.
- Normally, working faults more regularly such as in motors, generators, due to electronic switching equipments, etc.
- The maintenance and service people should manage all the maintenance, communication, safety and security of the systems.
- Therefore, it becomes very necessary to protect this system.
- Safety measures and careful attention needs to given for each and every part of the system to be protected, Some of the lightning arresters are discussed below.
- DC Traction Arrester
- Track Side Arrester
- AC Surge Arrester
- Low Voltage Limiter
- Enhanced Voltage Limiter
- Sheath Voltage Limiter
- Rail Track side Module
A) Direct Lightening Strokes.
B) Switching Surges due to External and Internal factors.