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Partial discharge testing on every entry to an 11KV substation?

Dave Tennyson

I am familiar with carrying out partial discharge surveys on 11KV equipment in substations periodically, but someone at work has suggested that partial discharge testing should be carried out on every substation entry. 

I have searched high and low to find where this is is written, to no avail. Can anyone help?  

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    I can read your query two ways !

    1) is your colleague suggesting it would be a good idea if this were the case?

    If so perhaps for some of the more crumbly infrastructure it would be a good idea.

    2) If the suggestion is that it is already required, I'm pretty sure it isn't, at least for most substations in the UK.

    I  also assume we are only talking about the non intrusive ultrasonic 'listening' for sizzling and so forth and not anything more time consuming like current clamps on earth leads and spike counting that get used when problems have been seen before or where a failure would be catastrophic ?

    Mike

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  • 0

    I can read your query two ways !

    1) is your colleague suggesting it would be a good idea if this were the case?

    If so perhaps for some of the more crumbly infrastructure it would be a good idea.

    2) If the suggestion is that it is already required, I'm pretty sure it isn't, at least for most substations in the UK.

    I  also assume we are only talking about the non intrusive ultrasonic 'listening' for sizzling and so forth and not anything more time consuming like current clamps on earth leads and spike counting that get used when problems have been seen before or where a failure would be catastrophic ?

    Mike

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