kva

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  1. E

    Electricity supply - Maximum Capacity of Connection 18 kVA

    Hello everyone! I have a question regarding the electricity supply and the maximum demand. One energy utility supplies an 18 kVA maximum capacity of electricity for a three-phase connection, and I'm wondering what this means in terms of the appliances and equipment I can safely use without...
    • ElecExplorer
    • Thread
    • capacity connection electricity kva maximum supply
    • Replies: 10
    • Forum: UK Electrical Forum
  2. C

    Converting into 12 flats, KVA, phases etc. Help!

    Hello, I'm new to this forum, we are in the process of converting into 12 flats all electric, no gas incl. heating, showers etc. An electrician was hired to apply to the National Grid on our behalf for a three-phase connection. He then quoted us £1,800 plus VAT for civil works i.e. to dig...
    • Confusedsoconfused
    • Thread
    • flats help! kva phases three phase
    • Replies: 10
    • Forum: UK Electrical Forum
  3. S

    Solar 3 phase kva limit

    My client wants to install a 100kw solar system. He has 3 phase and 100 amp fuse installed on 200kva transformer. Is 69kw the limit on 100 amp fuse or can he go over without a limiter fitted? Thanks
  4. N

    Repurposed 3.2 KVA site transformer drawing 56A

    I never did like transformer theory in my degree course and that was 40 years ago. I'm a boat builder now and we tend to have big battery banks and thus big chargers with all sorts of dodgy stuff going on. I have repurposed a series of power transformers to be used as the basis of high power...
  5. H

    Please help DNOs KVA……??

    Hi all, I’m getting confused as to what the DNO are going to be installing as there main supply and as you all may be aware they tend to be a little shy at replying back. We have been told ukpn will be supplying us a maximum of 270kva to a block of 24 apartments. I am assuming this will be...
  6. S

    How much kVA do I need?

    I'm hoping somebody can help me. Im converting a 4bedroom flat to 3 x 1bedroom flats. I am having a new 3 phase supply installed for 3 the flats. UK Power Networks have asked me how much kVA will I be needing in total. Each flat will have its own gas supply with the heating & hot water...
  7. J

    10 kva site transformer

    Hi got a 10kva transformer that keeps tripping. Im told its about 20 year old. Its fed off a type C 32 amp breaker. Single phase. Did continuity test between windings and all ok. Secondary has a centre tap so is that why I would get continuity between phase and earth? Not worked with much...
    • John robertson
    • Thread
    • kva site plan transformer
    • Replies: 8
    • Forum: UK Electrical Forum
  8. bigspark17

    Kva 3phase demand calc

    Hello all, looking for a bit of advice not been asked to fill in a new power supply for dno for a commercial premesis before. Do i put 70kva for a 3 phase supply that equates to 100A 3 phase head? Usually on single phase i put 18.4kva for 80 supply and they always provide 100A head. Thanks in...
  9. D

    How to improve the cooling of 2000 kVA ONAN transformer

    I have a transformer with ONAN cooling (natural ventilation like figure) and 2000 kVA that works always near full capacity, in summer it over heats above the limit. to improve the cooling and prevent reaching the oil temperature limit. I decided to place an exhaust fan and an inlet fan like...
    • dhia33
    • Thread
    • cooling how to kva transformer
    • Replies: 22
    • Forum: UK Electrical Forum
  10. B

    KVA advice

    Hi all I/m new to here and this is the first major installation of 3 phase and looking for advice The unit has a incoming supply off 3 phase four wires with 2x 80amp and 1 x 100amp 1361 type 2 fuses. and used to be a truck haulage company I am in the process of installing three, 3 phase...
  11. P

    New electric supply - ADMDs in kVA - kVA load required

    Hi I'm applying for a new electric supply. UK Power Networks have requested an accurate breakdown of the "required kVA load". ALL ELECTRIC 2 BED FLAT. I have worked out my requirements as below in watts, but am struggling to convert to the "ADMDs in kVA" they require. Lights: 280w Sockets...
    • Peter1981
    • Thread
    • electric kva load new required supply
    • Replies: 23
    • Forum: UK Electrical Forum
  12. C

    how much total load in KVA

    A client wants five new commando sockets, seeing as you cannot apply any diversity to the commando sockets would i be correct in saying the below will need to assume a maximum consumption of 96a from a 3 phase supply, so as a bare minimum the power supply specific to these circuits would need to...
  13. the pict

    A query about KVA and cost

    A customer has been quoted 11,000 quid to upgrade to 3 phase a whole load of cable and a pole mounted 11kva are required is 11kva a standard or are they punting us one so to future proof further requests for loads P
  14. G

    kva for a flat with all electric heating

    Hi everyone I am tearing my hair out here. I have trying to get UK Power Networks to quote for new electrical supplies in a property development I am managing. The property is a conversion into four one bed flats. I have been asked by UKPN to provide the After Diversity Max Demand in kVA for...
    • Gus Beare
    • Thread
    • electric electric heating flat heating kva
    • Replies: 22
    • Forum: UK Electrical Forum
  15. H

    KVA for installation

    hi, being a bit rusty on my calculations i thought id ask. I have to apply for alteration to supply as building is being extended. the building was once 3 seperate buildings and over the years have become one. however there are 3 seperate supplies within which fed various parts of building. now...
  16. T

    DCP 161 implementation April 1st and calculating KVA, maximum demand

    I have alluded to this in previous threads. The commercial site I work on has asked me what I think the total KVA for the site is. Having looked at various ways of viewing this I am getting lost with it. So if I just say kVA = ( V*A*1.73)/1000 and assume supply is 400V and take the main incomer...
    • The Ghost
    • Thread
    • april calculating demand kva maximum
    • Replies: 8
    • Forum: UK Electrical Forum
  17. J

    kva to amperage westernpower

    afternoonafternoon what is 120kva 3phase head in amps ? or what is the calc
  18. J

    kva of new supply- query

    Potential job for one of my builders I have done a smaller previous job for turning office into 7x 1/2bed flats but no gas. Load in flats is: 20 odd led downlights (2x 6amp) 15 d.sockets (2x 32a) 1x induction hob (1x 32a) 1x fan oven (1x 20a) 1x 3kw immersion (1x 16a) 5x heaters- assume <13amp...
  19. R

    Supply Kva 2bed flat

    What would a typical kva requirement be for a 2 bed flat with gas central heating. Standard layout with nothing standing out as OTT with regards to the amount of outlets/fittings. I only ask as i priced a job today for some alterations at a small block of flats, each flat has a 100amp fuse...
  20. E

    20 Kva Magnetek Jefferson 60Hz 3 Phase, 460y/260 Dry type transformer

    Hi. Have back fed this transformer trying to achieve 400 volts from a 250 volt 50Hz 3 phase 20Kva diesel powered generator. Have linked the high voltage Delta connected side to include all the windings, and connected the generator to the star connected low voltage windings, leaving the neutral...
    • emlyn
    • Thread
    • 3 phase connected delta kva phase transformer type voltage
    • Replies: 8
    • Forum: UK Electrical Forum

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