Lightning and lightning-induced surges are less common in western India than in eastern India. In addition, despite the installation of many types of protection mechanisms, such devices regularly fail.
The only way to protect your equipment from these switching surges is to use proper SPD selection and installation techniques.
There are many sources of switching surges. Most common ones are listed below,
1. High voltage switching from Utility side (Electricity Boards)
2. Capacitor bank switching
3. Welding
4.Transfer from EB to DG & vice versa. (there is no BUMPLESS transfer, practically)
5. Transmission line switching
6. CCVT- Coupling Capacitor Voltage Transformer
7. GIS
8. VIS
9. Ground voltage differences
10. CT
11. Electro-mechanical equipment
12. SCR
13. Digital logic circuits (SMPS, Printers, unshielded cables viz flat ribbon cables)
14. DC control circuits
15. Mechanical vibration
16. Chemical contamination
17. ESD via human touch
18. Cable resonance
19. Reflections & travelling waves
20. Power circuit in-rush currents
21.Other Incidental sources such as on load tap chargers, corona discharge from HV transmission lines (which travel several kilo-meters from the point of generation by propagating along the line) etc.
Contact us for expert solution to protect your sensitive electronic equipment close to their MTBF levels against the disturbances caused by any one or combination of the above-mentioned sources.
For more information, contact us at [email protected]"
