old ABB GRZ Ground Shield relay availability?
old ABB GRZ Ground Shield relay availability?
(OP)
I have an installed base of ground relays with zone interlocking capabilities with no spares. I am trying to find some spares (about 20) to assist on swapping out during routine shutdowns. They are no longer manufactured by ABB. Does anyone know of a company that may sell/repair old relays? The information for my units are ABB Type GRZ Ground Shield relay....Cat.#202Z9261.






RE: old ABB GRZ Ground Shield relay availability?
Was the non-availability information from a vendor or directly from ABB’s Allentown, PA facility? You may want to contact them directly for replacement recommendations. Clifford Downs at +1.610..336.5249
RE: old ABB GRZ Ground Shield relay availability?
http://www.abb.com/substationautomation
Under solid-state relays, you will find the GKC. Check it out to see if it can meet your needs.
The microprocessor replacement is probably the ABB Microshield or the newest relay out of Allentown is the ABB REF610 Feeder protection relay.
RE: old ABB GRZ Ground Shield relay availability?
There isn't a direct replacement for the GRZ relay since 1995, BUT Allentown still provides spare parts for this relay.
The Microshield is a 3-phase relay. The Micro51 is the better choice, and is about the same price as the GKC if you were interested in a microprocessor relay replacement.
Hope this helps.
RE: old ABB GRZ Ground Shield relay availability?
RE: old ABB GRZ Ground Shield relay availability?