Protection numbers 1

[electromott]

I have been looking at a drawing showing protection of HV, transformers, generators and LV. The drawing has the protection relays shown as numbers e.g. 51N, 96N, 32 and so on. Can anyone tell me where it is possible to find a definitive list of these as I know some but not all.

By the way, this is an a drawing in the UK if that makes any difference.

 

[RalphChristie]

Ansi device numbers:

http://pm.geindustrial.com/faq/documents/general/ger-3977.pdf

IEEE device numbers:

http://oge.apogee.net/pd/apidn.htm

RCC

 

[Shortstub]

In the UK:

Title: "Protective Relay Application Guide"

Author(s): GEC Measurements

Publisher: Oxley Printing Group Limites