Shaft current transformer for hidrogenerator

[nelvex]

To protect hydrogenerators bearing it is used shaft current transformer installed around it and a relay attached to the transformer.
I looked at various companies but I did not receive any answer. My question is if you can provide me the names of companies that produce these transformers and the relays which is connected to this current transformer.
Thank you.

 

[rasevskii]

@nelvex:

The original patents for the shaft current transformer and associated relay belonged to ASEA of Sweden. Very likely this system is still available from ABB. Do a search of the ABB library and you may find what is currently offered. Or google shaft current protection.

rasevskii

 

[Strong]

Here are a few references:

http://www.abb.us/product/db0003db004281/c12573e700330419c12569bc00230674.aspx

http://www05.abb.com/global/scot/sc...k502011-ben_a_en_shaft_current_protection.pdf

http://www05.abb.com/global/scot/sc...502001-uen_b_en_raric_shaft-current_relay.pdf

http://www.rmspl.com.au/handbook/2c139.pdf

Walt

 

[uhpo]

hi, look also to andritz and drs relay....if you don´t find more info come back to me

 

[uhpo]

abb have the relay raric but they are no going to manufacture the transformer

 

[nelvex]

Hi,
I got an answer, but the ABB say they no longer manufacture the relay abb Raric, although on their website is this relay. In the Raric prospectus is listed also the transformer relay. So far I have not received any response. Is it not important that relay?