Such small contact spacing is susceptible to flashover from surges, and protection is recommended by manufacturers. ... 7.2 Switchgear Generated Transients Some fault interrupting devices, such as vacuum circuit breakers can produce voltage surges during operation. ... Underground cable and switchgear may require surge protection, even at 11kV, to maintain adequate margins of protection fromanbsp;...
|Title||:||2nd International Conference on Advances in Power System Control, Operation & Management|
|Author||:||Institution of Electrical Engineers. Hong Kong Centre, Hong Kong Institution of Engineers. Electrical Division, Institution of Electrical Engineers, Institute of Electrical and Electronics Engineers. Hong Kong Section|