Hi everyone. Our ancient Bradbury car ramp died a few weeks ago. Eventually after replacing the 3 phase IMO contacter and thermal my sparky concluded the motor was fried. Faced with the expense of changing the motor I decided to go down the 1 phase 2pole cap start cap run solution supplied...
A bit confused...
On a 3 Phase DOL motor starter I have seen a few diagrams online and in books etc and they show one side of the coil A1 connected to L1 and then the other end of the coil connected to L3 and obviously going through the control circuit, so the coil is wired phase to phase...
I am presently setting up a metal turning lathe in my garage. (Inherited it from my father)
At present I cannot get the motor to run via the DOL box but, when disconnected from the DOL and plugged into the mains socket the motor runs fine.
Is there anyway I can test the DOL?
Regards.
Anyone tell me what Ive done wrong here lads?
Wired up a starter today, 2 DOL contactors with 415V coils fed through two Telemec Motor Overload units sitting side by side in an enclosure.
Wired up from the Red phase through a Stop and Start button back through A2 with hold on contact 13/14...
Morning guys,
Had a U-trough mixer go down, contactor failure as well as electro-pneumatic pressure switch problems. So i have decided to do away with the existing configuration and replace with a new design. Plan was to do away with the electro-pneumatic aspects of the system as the high dust...
Guys can anybody help with some dol starter wiring?, I'm not great at 3 phase motors
I'm wiring a bottle crusher , it came with a eaton mem 28ADS1X dol, it says 230v coil but the plug to the motor is 3phase and earth
The mem dol is knackered and the guy who gave it to my mate supplied a...
Hi, I'm a recently qualified spark and I do mostly commercial and industrial installs and not much maintenance work, I'm looking to move over to oz in about 2 years and I'll be door a vetassess exam which is like an AM2 but a little different.
What I'm looking for is some info on the...
Hye all,
i need some help here about DOL starter im working with right now
first i thought that i can just add the multimeter on the circuit. but then my supervisor said i cant just add the multimeter just like that..i have to add some ct coil?
so can anyone here give me some reference about...
Hi does anybody know a source of spares for the above starters, these are quite old starters and the part i need is the green start button with the white nylon plunger, RS have spares but not for this model, we have a lot of these installed and I dont really want to change the whole starter...
Hi, can anyone help me with any diagrams on how to wire a 3 phase Dol starter with the links put in, with the diagram also showing the incoming supply obvously being the three phases and neutral and where exactly they all get terminated. As the diagrams on google images are not that useful...
Hi can anyone tell me the calculation for above? Got the last day of my install of my AM2 tomorrow can't remember from college and havnt had much luck searching, cheers.
Hello, Can someone please tell me the reason why you always loop back the netural wire from T2 to L3, I was always told 'its because we do' , I have one to replace and would like to know the reason i assumed it was so all the poles are covered and it may help pick up on overloads better.
Many...
Hi everyone
Can you please tell me how to calculate/select the correct contactor & overload for the following:-
Single phase 2.2kw induction motor fitted to a steam cleaner/pressure washer. There is currently no motor controls fitted as they have been removed by previous owner. I have also...
Hi,
I am having trouble with a 3 phase motor (about 1kW I think) and a tripping RCD. The motor is DOL started through a contactor and thermal overload.
Starting the motor causes the RCD to trip instantly. Is the starting of the motor causing this and would soft-starting the motor solve the...
hi
ive searched for two days now and i still cant find a definitive method to wire a single phase contactor/overload dol.
The whole normally open/normally closed coil thing with the coil/relay and all the numbers on the contactors just boggles my mind.
i know once its explained itll simple...
Greetings all.
I am trying to get a few things straight in my head before Tuesday.
The main thing I am not sure about is this three phase motor starter.
The way I was gong to tackle it was to R1+R2 it.
Starting at the DB link L1 -E, get examiner to hold contactor and measure at the socket and...
Hi all
Any industrial electricians in the house ?
Having decided to move my old Harrison L5 lathe to a more suitable location in my workshop, I have taken the opportunity to give the lathe a full re-paint & light re-furb ( God knows it needs it )
As part of the re-furb I thought that I...
Hi there I've got an exam in a few weeks where I have to test a single phase dol starter, have had no experience in testing one of these and would appreciate any help, maybe a step by step guide on the test, much appreciated, thanks.
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