Typical costs of transmission and distribution protection
Typical costs of transmission and distribution protection
(OP)
Hi everyone,
Thanks in advance for any help you may be able to offer. I am interested in overall costs of protecting transmission and distribution substations (including relays, wiring, CTS and VTs, comms) and feeders for an academic study that I (I am a University Lecturer), and a PhD student, are undertaking. I am based in the UK, but any answers from anyone, anywhere, are extremely welcome. I realise some information may be sensitive, so please feel free to use ball-park/anonymised figures - I am just trying to get an idea of typical values.
Can anyone give advice on:
Thanks in advance for any help you may be able to offer. I am interested in overall costs of protecting transmission and distribution substations (including relays, wiring, CTS and VTs, comms) and feeders for an academic study that I (I am a University Lecturer), and a PhD student, are undertaking. I am based in the UK, but any answers from anyone, anywhere, are extremely welcome. I realise some information may be sensitive, so please feel free to use ball-park/anonymised figures - I am just trying to get an idea of typical values.
Can anyone give advice on:
- Relay costs (e.g. differential, distance, overcurrent, busbar) for transmission and distribtution protection applications
- Typical current/voltage transformer costs at different voltage levels
- Cost of wiring between CTs/VTs and relays and breakers (for line, transformer, busbar)
- Costs of protecting a transmission substation in terms of the above (encompassing busbars, feeders, transformers, etc.). Numbers of relays/CTs per feeder/bus etc?
- Costs of protecting a primary distribution sub in terms of the above (in the uk, this may consist of two 33/11kV transformers, the busbar(s) and the outgoing 11kV circuits)
- Any business case/cost benefit info relating to IEC 61850-9-2 - savings, installation/commissioning savings, through life costs savings, etc?
- Thoughts on cost savings offered by non-conventional instrument transformers?
- Anything else you think relevant







RE: Typical costs of transmission and distribution protection
some data are available in the following documents (unfortunately they are not available in English):
- as regards transmission
http://www.terna.it/LinkClick.aspx?fileticket=0UQe...
- as regards distribution
http://www.enel.it/it-IT/doc/reti/enel_distribuzio...
Si duri puer ingeni videtur,
preconem facias vel architectum.
RE: Typical costs of transmission and distribution protection
Cheers
RE: Typical costs of transmission and distribution protection
https://www.selinc.com/transmissionprotection/
https://www.selinc.com/distributionprotection/
Bill
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Jimmy Carter