Testing of Surge Arresters (Surge Diverters)
Surge arrester is important member of protection system.
The voltage surgers due lightening strokes and switching surges are diverted to earth by this device this protecting the other equipment connected on the line.
The different test to be performed on surge arresters are tabulated in Table.
|
Item |
Test |
Sr. |
Test |
|
|
Power frequency test |
1. |
Power frequency sparkover test (Dry and west) |
|
|
Impulse test |
2. |
100% standard impulse sparkover test. |
|
|
|
3. |
Residual voltage test |
|
Surge arrester |
|
4. |
High current impulse test |
|
|
|
5. |
Long duration impulse current test |
|
|
|
6. |
Operating duty cycle test |
|
|
Other test |
7. |
Temperature cycle test. |
|
|
|
8. |
Pollution test |