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

Darkwood · Apr 3, 2013

Chilly meet Tony ......Tony meet Chilly I see a blossoming friendship developing here lol.... :19:

Knobhead · Apr 3, 2013

[ElectriciansForums.net] star delta motor .....extra stop/start....415v abb

Darkwood · Apr 4, 2013

The only thing that interferes with my learning is my education!...... Albert Einstein........................................ Everyday is a school day even for the most educated................................................................................ Darkwood!

chilliwilly · Apr 4, 2013

darkwood said:
Chilly meet Tony ......Tony meet Chilly I see a blossoming friendship developing here lol.... :19:

Can't wait.

Engineer54 · Apr 4, 2013

I don't think the Mod's will allow this potential friendship to have any time to develope to be honest, not going by this last post!! lol!!

Knobhead · Apr 4, 2013

The courts say I’m a danger to myself and anyone I come in contact with. My “shrink” doesn’t agree (he will when he gets out of hospital) he thinks I’m just mis-understood.

CW, I will listen to any reasoned argument if it’s backed up with fact. You’re only “fact” has been based on the economics of getting a contract. “The customer doesn’t want to pay”. If that is the case walk away because if you don’t you will end up in the mire.

Going back to you resurrecting the “Ellison” switch (Ellison are grey with the decal cast in the top picked out in red. Allen West are orange and everything about them fell apart), I would love to see one working in a safe condition. “Safe” being the operative word. They are inherently dangerous due to them being “Dependant Manual Operation”. Did you drop the tank and inspect the contacts? I doubt it. Is it safe for continued operation? Are you prepared to carry the can when it blows up?
I’ve spent 40 years removing / renovating old gear that isn’t deemed safe by the powers that be. I hated taking it out but it had to go. I got a perverse kick out of closing a switch I knew could blow my head off. But I’m weird!

Legislation has stepped in, but not with the punch it should have done. Like it or not you have to abide with that legislation. Otherwise face the consequences. It’s you’re call.

Knobhead · Apr 4, 2013

I was quoted on the front page of one of the most prominent regional newspapers. (Nottingham Evening Post).

“There are laws in this country, we may not agree with them, but we must abide by them.”

chilliwilly · Apr 4, 2013

Good for you.

Darkwood · Apr 4, 2013

Caution Chilly I would Edit your post 65 if I was you such wording or suggestive txt will get you banned!!!

chilliwilly · Apr 4, 2013

Tony said:
The courts say I’m a danger to myself and anyone I come in contact with. My “shrink” doesn’t agree (he will when he gets out of hospital) he thinks I’m just mis-understood.

CW, I will listen to any reasoned argument if it’s backed up with fact. You’re only “fact” has been based on the economics of getting a contract. “The customer doesn’t want to pay”. If that is the case walk away because if you don’t you will end up in the mire.

Going back to you resurrecting the “Ellison” switch (Ellison are grey with the decal cast in the top picked out in red. Allen West are orange and everything about them fell apart), I would love to see one working in a safe condition. “Safe” being the operative word. They are inherently dangerous due to them being “Dependant Manual Operation”. Did you drop the tank and inspect the contacts? I doubt it. Is it safe for continued operation? Are you prepared to carry the can when it blows up?
I’ve spent 40 years removing / renovating old gear that isn’t deemed safe by the powers that be. I hated taking it out but it had to go. I got a perverse kick out of closing a switch I knew could blow my head off. But I’m weird!

Legislation has stepped in, but not with the punch it should have done. Like it or not you have to abide with that legislation. Otherwise face the consequences. It’s you’re call.

All the switch and control gear was painted orange, it was part of complying with the electrical factories act. The eawr doesn't mention about colours of enclosures, so it has been left the same colour.

The resistance starter was refurbed by a drive and rewind specialist who in turn converted the 4 100v motors on the conveyor.

I take it then that you think he should have refused to carry out the refurbishment on the grounds that someone had to manually control it to allow a voltage on the rotor greater than rlv?

They also have a 3kv tandem drive protected by the usual barriers but I suppose your going to tell me it should be disconnected? As the controls are 415v on the pushes and gate switches.

leespeed · Apr 21, 2013

sorted

Darkwood · Apr 21, 2013

Wont ask what in the large adaptable box but now you've extended the control circuit the full safety standards of the machine lay on your shoulders so hopefully it wasn't wired to a older standard

just food for thought.

leespeed · Apr 23, 2013

darkwood said:
Wont ask what in the large adaptable box but now you've extended the control circuit the full safety standards of the machine lay on your shoulders so hopefully it wasn't wired to a older standard just food for thought.

1 x400/24 transformer 2x 24v relays for the remote stop start circuit

Darkwood · Apr 23, 2013

I gathered from the earlier posts, as you have just adapted a very simple set-up here with a blower for a church organ what you have done is probably ok as the system is unlikely to meet a category level that require a fail safe E-stop relay system as I assume you have just used off the shelf plug and base relays but caution you don't take this experience further with say machinery as you will have to know a lot more than you can blag of a forum regarding risk assessment the use of safety relays etc etc ....