Transformer Cable + Surge Arrestor Connection
Transformer Cable + Surge Arrestor Connection
(OP)
Hi folks,
I wanted to know if this is an acceptable installation based on standard industry practices.
I've never seen a jumper used to go from the surge arrester to the HV bushings..... rather, you terminate the cable first on the HV bushing no?
I wanted to know if this is an acceptable installation based on standard industry practices.
I've never seen a jumper used to go from the surge arrester to the HV bushings..... rather, you terminate the cable first on the HV bushing no?






RE: Transformer Cable + Surge Arrestor Connection
RE: Transformer Cable + Surge Arrestor Connection
Ideally the main current carrying conductors would connect straight to the bushing, but in the photograph the installer has made the best of the physical arrangement.
Regards
Marmite
RE: Transformer Cable + Surge Arrestor Connection
On querying this with one of our company engineers the explanation was that as a surge or spike travels along the conductive path you want it to reach the arrestor before entering the transformer. See the pic despite the 2 blown arrestors... just to show the mounts in relation to the bushings.
RE: Transformer Cable + Surge Arrestor Connection
RE: Transformer Cable + Surge Arrestor Connection
RE: Transformer Cable + Surge Arrestor Connection
What do you mean by "three current carrying pad-to-pad connections"?
RE: Transformer Cable + Surge Arrestor Connection
RE: Transformer Cable + Surge Arrestor Connection
Thanks.
RE: Transformer Cable + Surge Arrestor Connection
Below are two good practices for surge protection pad mounted transformer.