Does anybody have any experience of this switchgear in particular and whether the Busbar Earth Switch of a 33kV windfarm board would be required to be used in conjunction with a circuit breaker (like it does for feeders) also or will it take it down to earth for maintainance tasks on its own...
Has anybody any experience in the UK of any companies who would willingly carry out modifications to 23.5kV nominal rated IPB from a 660MW set initially installed around 1980. Purpose of the modifications is to install a new Generator CB.
Looking for pointers who to approach from past forum...
Has anybody have any experience of jobs in Pakistan and in particular metering of 11kV supplies? Really struggling to the relative legislation and standards involved. Google isn't really coming up with the product this time.
Ta in advance.
I'm currently dusting off my 10 year old power knowledge, and more specifically unbalanced fault analysis which hasn't been used for a while as I've been in the building services game for the last 5 years (so ohms law and the volt drop equations was about all you had to remember).
I remember...
The contractor on a project has submitted the cable sizes for 11kV cables. One of the parameters used in sizing the cables is the fault level withstand. The contractor has sized the cables to withstand the prospective fault level for 1 second.
However, the client has challenged us on why 1...
Morning gents (and ladies)
I have a job the now at a hydro power station where the client is experiencing a loss in production and believes this is due to moisture ingress into underound electrical joints along the 3km route of the 10core 5 pair BS5308 Type 2 Part 2 hill instrumentation cable...
Morning chaps.
First post since I relocated to Australia 3 years ago, good to see this resource still going.
Basically my problem is that I need to confirm whether a Schneider VIP300 protection relay (Is =26A) in the HV cubicle of a 1MVA substation will provide discrimination with some...
