Hi All,
A mate of mine recently acquired a rather nice wood turning lathe they'd like to get running out in their workshop. However he admits his workshop is rather old and while he's not bothered, I'm concerned about drawing too much current (I'm trying to convince him to get the wiring...
Hey all, I have a couple of jobs to look at which one is apparently not working right as is a single phase supply through a D.O.L starter / contactor for I think a borehole pump and another that is running a fresh air ventilation system and is now tripping out ! The thing is I've never needed to...
i have my am2 coming up soon. Was just curious as to how you test the dol tobthe motor after doing the global IR test, testing strappers and ring etc. Do you test from the dol going to the motor, or from the motor to the DOL, or does it matter?
Any advice would be great. I have used this forum...
Does anybody know if you only to an IR test on the cables that you have pulled in from the DOL to the motor on the AM2?
So, you would just do L1-E,L2-e, L3-e,
Then L1-L2, L1-L3, L2-L3?
Obviously from the DOL to motor you will only pull in brown, black, grey then and earth with no neutral.
Hey guys......
I am new to this forum.
I looking for a solution since a week but i am not able to get it. I want to switch on & switch off the dol or star delta motor with timer (Please note: here i am not talking about a timer switch which is used to switch the motor from star to delta). I...
Hi guys, I have very limited experience with starters and contactors as my work has always been domestic and have not once come across either that I've needed to work on. Until now...
I have been asked if I can update a swimming pool control panel and I think I have the general idea but am...
Hi,
I was hoping for some advice regarding testing a circuit with a dol start in it? As ive not yet work on one.
I was thinking for R1+R2 i could test L1 at the db to L1 on the dol input & then L1 output on dol to plugs then add them & r2 to get R1 + Would this be ok for the exam practical...
Hi all I'm installing a 2post car lift 3 phase, when I bought it the lift there was a damaged switch box on so I've bought a eaton mem dol box all wired in,
The only thing I want to change is the way it works when I press either the forward or reverse button it latches in and have to press the...
Hey guys posted a simular thread earlier regarding a dol starter, anyways popped down to check it out tonight, everything's seems to be ok, iv tested the nc and no terminals and etc etc, issue is you press the stop button and it takes a split second to stop. Should it not be an instant stop...
Never really touched on motors always been domestic, any ways il cut to the chase, got a job dol starter 3ph not stopping on em stop button, am I right in assuming it can only be the dol stater is nakered, and just replace it, or could it be deeper and be overload setting wrong etc etc. Also to...
Hello everyone. I have a new star delta pump (7 core flying lead) that has to be made off into a DOL single contactor starter. Is this possible and does anyone know how?
Hi all currently doing my AM2 and stuck with the settings for the DOL, I cant remember for the life of me how to work out what setting to use, been over my notes and nothing.
Any help, the motor is a 0.37kw motor 3 phase
Cheers
hi, I have a dol starter motor, was working fine then suddenly the start button stopped working. I can manually operate it by pressing the black centre of the dol starter. here is a picture of it, if someone can help me with the problem. thanks
Hey all, fairly new to this so bare with me,
i have an interview this week and Iam expecting a skills test does anyone have any idea what I could be facing? Or what you have experienced, the job is in a food processing factory.
ive heard rumours of having the wire a dol with pilz relay?
not...
Hi
I have just quickly popped around to mates workshop and he has bought a typical bargin off fleabay. It is a 7.5kw, 10HP 3 phase compressor. Great buy, but... It literally has been rip out of previous place. So all that I am faced with is 6 x red cables (3 long, 3 shorter) and two flex cables...
Hi, I've got a practical exam for testing and inspecting later this week. I've researched the net and these forums and there is some good info just need to get some things clear in my head so I'm certain about the testing for the motor circuit. Its single phase and the circuit goes as follows...
Afternoon all
I have a DOL starter with 415 coil. Basically I've been asked to put a selector switch in so that a proximity sensor can control the DOL starter.
Could anyone provide me with a wiring diagram on how to do this?
Many Thanks
I have had to replace the overload relay on a three phase DOL starter today. The coil to the contactor will now not energise unless I push the start button in along with the the stop button.
As I understand it start button makes the circuit / energises the coil (normal open) stop button...
This photo is a DOL starter with a start and stop button on front of enclosure, I'm looking this contactor to pull in via a 24 hour time clock from 8.00-9.00am without removing the start stop facility but when the timer triggers contactor I also want the stop button to be valid.
Thanks in advance
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