substation

substation

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  1. Q

    Substation Earthing Arrangment

    Hi All, I have a question trying to understand earthing arrangments SO, We have a DNO Substation, 4 Core armoured Feeding the Distribution Board Fed from an Auxillary Transformer (Clients) The DNO Substation has an Earthtape around the substation, which connects to the earthmat of the entire...
  2. JD6400

    500kva substation earthing , any qualifications needed ?

    We have just taken on a new client who is extending their industrial park. Their previous electrician had been helping with the install all of a totally new feed and 500 kVA onsite substation by UKPN. I received a phone call from the client last night asking if I had tested off , or the...
  3. P

    Electrical substation located near the house - advice needed

    Hi, I've got a problem and hoping to get some advice. There is an ongoing development on the back of my house. The Developer built an electrical substation house literally 1m behind my fence - in a straight line with my windows. The total distance between the substation & my house is 14m...
  4. D

    UK Substation LV Feeder Pillar Fuse Rating

    On a commercial 200A TP&N supply, what rating would the substation feeder pillar fuses be? Would they typically also be 200A or a higher rating? Source URL: Electrical Forum - https://www.electriciansforums.net/forums/electrical-forum.15/
  5. S

    LV Distribution Feeder Queries

    Hey there everyone, I'm currently an EE student doing my 4th year project. As part of my project, I am carrying out a literature review into the design rules DNOs apply to their LV distribution networks. I am trying to built up a reasonable understanding into how these networks are laid out...
  6. A

    Substation work

    Hey guys, Just want to ask a quick question, How do you get into substation work and maintenance is there some sort of course. This is considering you already have nvq 3 and gold card. thanks in advance
  7. S

    Earthing arrangement testing procedures for a substation !

    Hello Everyone , Thanks in Advance for any help given it is very much appriecated ! I am mainly a domestic electrician working on houses , Recently we have been asked to do the earthing arrangements for a freestanding brick built substation for a single transformer ! Now lets get this straight...
  8. S

    Substation right across the road - PSC

    Hello Testing for PSCC and PEFC with the substation in view from underneath the staircase, I got one reading testing PSCC on 2000A but overload on PEFC. But on 20ka I got tests results on both PEFC and PSCC. Can I use these results on my certificate for PFC? Cheers, as ever.
  9. M

    temp substation work

    Hi, I done a bit of wireman contracting for an agency a good few years ago in various substations around the country and just wondering what the works like now? e.g. there was a big shortage at the time for us so it was decent money £20 an hr I remember. Having been out of it, which are the...
  10. N

    Acceptable incoming voltage from substation to shop outlet

    Hi, I was wondering if anyone would know what the acceptable minimum and maximum on a single/three phase main incoming voltage should be. From what I have gathered you have a tolerance of +10 230V -6. Could you also quote from where it is mentioned in the wiring regs. Thanks.
  11. R

    1000kva substation

    good morning everyone in a few weeks time i will have a nice new 1000kva transformer sitting here , i have sent my incoming supply and outgoing supplys to crabtree to have a panel spec`d , but how do i spec the cable from the ct chamber to my panel itself ? i think its gonna be in a metal...
  12. Y

    schematic for substation

    i am now have project about to design the substation...low voltage distribution panel. can someone show me the basic schematic for the substation... in other words,the wiring come from the power source(415V) until go to the load(consumer)
  13. D

    Anyone got some info for Substation procedures?

    How do, I am looking for a good link or book on the procedures/ regs for disconections of 400kV substation transformers for bushing maintenance. anyone a HV substation wizard? Cheers
  14. M

    Substation 'Craftsperson'

    Does anyone know what this job role might entail? In particular, working for the National Grid It asks for either a electrical OR mechanical modern apprenticeship - with a view to train further
  15. ringer

    Ze and distance from substation

    Was shown a PIR by a friend today where the Ze was recorded as 0.01 ohms. Not unexpectedly, the PFC was sky high at 19.9kA. I have never come across a Ze so low before. This is commercial premises, with a single phase TN-S supply. Now the nearest substation I am aware of is 150m away as the crow...
  16. W

    Substation High Earth resistance

    Hi All, I have a theory, that in a small village with 2 substations, one substation has a good earth connection but the other has a high earth connection. Some of the houses in the village use TT systems, the houses connected to substation 1 have a Ze of approx 6 ohms. The houses connected to...
  17. linuxthefish

    Substation Fuse

    What would the rating be for a substation fuse and has anyone ever seen one go while on a job? Had a mate asking me this earlier, and now i feel interested. As i understand it goes: substation fuse > DNO fuse > CU?
  18. K

    Pikeys and a stolen substation neutral cable = BANG!!!

    Hi, I heard about this on the news. Apparently all the local residents' appliances blew up due to a voltage spike. I couldn't figure out at first how this happened? Then I started wondering whether, because the secondary winding of the transformer is a 'star' winding and the centre...
  19. P

    Substation Question

    Hi, Moving into a house and the searches have just revealed the existence of a Substation on the Property. Now, I have looked at the "Electrical Installation" - It is Fenced off (Wooden) and with a Danger of Death Sign outside. It's a Grey Metal Cabinet cabinet, 6 foot high, 1.5 Foot Deep...
  20. M

    what the EDF Substation Awareness/Competent Certificate is???

    hello everybody I have seen this advert on gumtree Electricians Required Must Have Lul Entry Permit And Edf Substation Training Surrey Quays Tradesmen Labour jobs London and I just wonder what the EDF Substation Awareness/Competent Certificate is? do you have any idea what kind f...

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