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delta

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  1. S

    star ? delta?

    Hello can you tell me the best way to tell wether to connect the motor in delta or star. If the name plate has a star and a delta symbol on it .
  2. infinity

    blackest panels

    Have you found a panel blacker than the penlight delta black? How black are the sun power signature blacks? does anyone have a photo of them? or even a data sheet? I can't seem to find the data sheet for them anywhere just for the normal 327W panel. Are there any other completely black panels?
  3. Tiny Spark

    Star Delta starters and timers....

    Hey all, Been away for a while with the new job thats keeping me busy! But ive had a head banger of a day and could do with a helping hand of someone more in the know that I. So heres the problem, We have a AHU with a large supply motor thats started via a star delta starter, Now last week 2 of...
  4. Simon-0116

    star delta - generator

    Got star delta motor new installation, when goung into run just dies, dosrnt trip over losd, as if contactor not holding in on run. Wrong wiring diagram eith pannel, u1 goes u2, v1 to v2, w1 to w2 on motor windings. Running of a generator, 200kva, 50 kw motor, so man enough. Pannel firm...
  5. C

    3 phase motor star delta staring controls

    Hi guys with the star delta motor starting controls I know you have 3 contractors, the main, the star & then delta. The star contractor is looped out as star configuration at the top but I cannot see how the delta contractor is configured in delta, it just looks like a standard contractor to me...
  6. P

    2 speed star delta motors

    Hi guys, would anyone have any info on 2 speed star delta motors the one I'm looking at has a selector switch on control panel for low speed this brings in one contactor when you rotate the switch from low speed through off position to high speed position it drops out the low speed contactor...
  7. S

    star - delta

    Can any of you fine folk explain how a motor would be wired in star delta ?
  8. S

    Delta Sol solar thermal??

    Anyone familiar with Delta Sol solar thermal controls? Just wired a Y plan, existing cylinder was removed and replaced with a center store cylinder - not sure if the controls and cylinder are compatible Any help would be appreciated?
  9. A

    Star Delta Problem !

    Hi Guys, My mate has a big fan motor on a star delta starter that used to work fine, the other day it stopped working and when he tries to start it, it starts turning but when it tries to kick into delta it just stops but blows no fuses, he bought a new motor and put it on but it has still got...
  10. C

    Star Delta starter Fault...

    As part of my oral exam (oo err!) for my marine engineer license we get asked electrical questions.One such question that's been asked is " What would happen if a Star Delta Starter didn't change over and continued to run in Star and what would you do if it had to keep running in star?" Ie part...
  11. C

    Star Delta Question...

    This is a question that gets asked sometimes in an Oral test I need to have for my Marine Engineer license... Any help would be appreciated as I'm a little stuck on this. I realize that the Star Delta configuration is for reduced voltage starting say 254V Vph from 440V supply (1/ root 3) (or is...
  12. JD6400

    Electromagnetic effects , star / delta motor wiring ?

    I occasionally come across reasonably sized ( not for some of you , I know ! ) star delta motors that have been run in 2 x 3core swa . Now after looking in to this in the past , it has been suggested that as they tend to be only on motors up to 30kw or so , and as the loading per phase will be...
  13. T

    3ph delta star switch, delta tripping fuse

    Hi, im new here. Looks like a pretty active forum so i'm hoping someone can help me maybe. :) Here's my problem. Neighbor just bought a used circular saw with a 10kW 3ph motor on it and asked me to rewire it, because the cable from the started switch to the motor box was all messed up...
  14. J

    Ex Delta NVQ 3 Electrical... help?

    Hi there Has anyone else been in this situation. We all know now that Delta Electrical has gone into liquidation. I was 99% complete with my course and need to know if anyone else has taken their work to another company to finish marking? If yes what company did u use? I was thinking of...
  15. timo1

    Delta training gone under!!?

    Fab. 87% into my nvq 3 and get an email telling me delta have gone under. Have to contact the company tomorrow to see what happens now, but I am getting the sinking feeling that I'm going to be kissing my hard earned goodbye. Luckily paid by credit card so may be protected, but still a pain in...
  16. H

    Delta Training

    I've just been informed that Delta training have gone into liquidation. I had an open portfolio doing the 2356. Liquidator has told me there is next to no assets and I'm set to lose my £800 fee.
  17. G

    3 phase motor

    I wired a 3 phase motor for a hydraulic pump up today. Its a 3kw motor. My boss told me to wire it as a Direct online in Delta. I thought maybe it would be better as a Star Delta as the pump would be dry and it may cause high start up current. I belief that a small motor is fine as a DOL. When i...
  18. T

    JIB Electrotechnical Certification Scheme (ECS) Another jib thread - sorry!!!!

    There's thousands of posts on this but i cant seem to find anyone in my particular situation, and I have rung the jib but as rear usual they give conflicting answers so here it goes, im after the elusive gold approved card my quals are: 2330 lv 2 2330 lv 3 17th (haven't taken the amendment)...
  19. leespeed

    star delta motor .....extra stop/start....415v abb

    whats the best and safest way to install a remote start stop system on a star delta motor .........i can only seem to find remote stops in series and no starts will it have to be a relay low volatge system ...... any info appreciate ....its for a church organ motor in cella organ on 3rd floor...
  20. T

    3 Phase Calculations for Star and Delta

    Hi All just a question for the more mathematical people. Have got three 15kw water heaters wired in Star . What is the current calculation for this per phase and would this change if wired in delta assuming a pf of 1 ? Regards John :6::rolleyes2:

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