delta | Page 4

delta

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  1. G

    remote switching between star and delta (both ways)

    Hi all, I apologise for jumping straight in with a new thread asking questions. I did search and can't find any info on my problem. Getting to the point... I have fitted an ABB EXE2S star delta starter to run a 3phase 15kw motor on an extraction fan. The starter is working perfectly but the...
  2. A

    knowledge assessment questions Delta Electrical

    Hi all Has anybody done the knowledge questions for the 2356 through delta training? they are worded really badly any help would be greatfull? cheers A
  3. M

    star delta

    Hello folks I have been asked to wire a star delta motor auger feeder ,it is in a farm yard and the customer has asked for it to be wired via a waterproof plug and socket , so that it can be put out of the way during winter,etc.has any one a steer on how people get around the issues of doing...
  4. C

    Motor connected in star not delta

    Hi all just looking for a little advise was recently working on a ventilation control and during the works noticed that the 4kw 400v motor was connected in star when clearly the manufacturers instructions stated the motor should be in delta. After sorting the control I changed the motor...
  5. S

    Star delta starters

    I have some stock that I'm trying to get rid off, due to customers changing their minds as well as materials being wrongly specked for some jobs. I'll give some examples of some of the equipment and if anyone is interested they can e mail me for a full list and photos. 4-20 signal isolators...
  6. S

    NVQ3 Delta Training

    Hi guys, just getting through my NVQ3 at the moment and close to completing! Trying to get my mate who says he has his NVQ3 to check my stuff and be a witness but now it looks like he dont' have his NVQ3 so what can i do? Cheers
  7. Brightspark2

    Star Delta Starter, Remote stop start

    I have a star delta starter that I'm wiring a remote start stop too. Now there is a spare 3 wire swa cable running from next to the starter to the location that the remote start stop is needed. My question is can I use a 3 wire start stop on this star delta starter, as I see it its not possible...
  8. F

    3 phase delta connected motor advice

    I have a 3 phase brook crompton delta motor connected to a direct on line starter, it keeps blowing the mcb, any suggestions as to why this is happening?
  9. Amp David

    Star Delta Starter

    Can anyone advise of a good reliable supplier off star delta starters please. Local places don't do this sort of stuff and not driving miles to somewhere that will, so online is preferred. Thanks for suggestions.
  10. H

    Delta Training - NVQ3 online e-portfolio

    Lads, has anybody done this and completed it through Delta. Spoke to a couple of training providers today a couple, including Delta, who said they can do the qualification online and there would be no on-site assessment. Others said don't give them your money it can't be done online. I'm just...
  11. W

    Setting timer from star contactor change to delta contactor

    Hello everyone. I would like to know how many second we need to set on timer to change the star contactor to delta contactor. Is it depend on motor rating. let's say i have 10hp motor. so how many second should i set on timer? Thanks
  12. C

    star and delta motor connections

    can anyone help, what is the difference between delta and star motor connections?
  13. T

    Transformer in Star/ Delta connections

    In my AHU panel I have a transformer connected into the star/delta circuit (First time I've seen this) the original transformer was a 37kw with 415v 70% 60% 40% and star tappings, this transformer is now faulty so I have ordered a new one which arrived today. The problem is, on the old...
  14. C

    Star Delta Theory

    Hi All. Firstly would like to say thanks to everyone who reads this and provides any useful information. I have used the search button and have read through previous posts/ stickys before posting this. Basically I would like to understand the voltages clearer in star and delta, I know...
  15. R

    Star and delta motor wiring systems

    HI, Am I right in assuming that if im using a 230v single phase to 230v 3 phase inverter to control a 1.1 kw motor, I wire the Motor in Delta wiring formation..
  16. L

    Which source drive the star delta contactor

    Hi sorry for my newbie question, I've a question about a star delta starter. What exactly drive the mechanical contact in contactor, is't AC 240/220V separate source from L1,L2,L3? thanks.
  17. I

    Power rating - mixed star/delta/single on one board

    Hi, I am required to put data labels on the equipment I manufacture (if anyone knows the reg number of it that would be helpful). One one box on the data label I am required to put the 'KW' rating. Only problem is a few devices I build contain distribution boards and sockets. The maths is...
  18. W

    How to know whether to wire as star or delta?

    Hi All, When connecting a motor, how do you know whether it needs to be wired as star or delta? Thanks
  19. danzor

    NVQ with Delta

    Anyone got a completed assessment with DET? Done all 3 assessments, but the Key Criticals aren't clear. My accessor isn't the most helpful either. Thanks
  20. V

    high readings on RCD test

    I put two new spikes on a tt system and I am now getting a reading Ze-84ohms, I put new 30Ma trips on three boards but ,I am getting high tripping times on two of the RCD would this be the trips or would there be some other reason?

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