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Topic Title: HV switching handles
Topic Summary: Trying to track down Hv Switching handles.
Created On: 21 December 2012 06:57 PM
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 21 December 2012 06:57 PM
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Snips

Posts: 26
Joined: 01 April 2012

Hello all, I'm trying to track down a manufacturer of a 3 second delay handle. Its a flat handle about 250mm long, it doesn't have any moving or hinged parts. I've tried various web searches to no-avail.

Any help is appreciated

Regards

Ian
 22 December 2012 12:31 PM
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alancapon

Posts: 5746
Joined: 27 December 2005

Please state the make and model of the switchgear you are trying to operate. Most handles are specific to a specific model.

Regards,

Alan.
 22 December 2012 03:31 PM
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Snips

Posts: 26
Joined: 01 April 2012

Thanks for the reply, i think its a semi-universal handle for a couple of makes, oil gear not gas, and its not long/crawford, merlin, sws. As far as im aware. I'll double check when im in the office on Monday. Its one of those handles that get passed down rather than brought new, our stores are out of stock. So ive been trawling the web for possibles.

I'll hopefully get back to you with more info.

Cheers

Ian
 23 December 2012 02:00 PM
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ukmaharaja

Posts: 11
Joined: 26 May 2005

I know having used for manual closing of Oerlikon make Minimum oil circuit breakers in 22kv Distribution nertwork , way back in eighties, These barekers were having series trip relay and manual spring operated mechanism , no DC power was used for breaker operation.

The handles were removable , similar to one used for manual cranking in older vehilcle.
 23 December 2012 06:14 PM
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Snips

Posts: 26
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Thanks ukmaharaja,

Tho the handle you on about i think is for racking out OCB's the one I'm after is for oil switches.

Cheers though.

Regards Ian
 30 December 2012 06:23 PM
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ArthurHall

Posts: 735
Joined: 25 July 2008

Try some of the secondhand switchgear companies such as RF winder or Slaters.

The flat metal bar, does it have an end shaped similar to the letter R ?
 01 January 2013 05:01 PM
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Snips

Posts: 26
Joined: 01 April 2012

Thanks, i'll drop them an email. Nope it doesn't look like a "R" I've managed get some photo but don't know how to attach them. Its about 300mm long by 60mm by 15mm thick, the business end has a slotted top and fits over a stub handle on the switch gear. This probably makes no sense.
 01 January 2013 05:06 PM
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Snips

Posts: 26
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Ive just made my profile picture the handle in question D
 01 January 2013 07:33 PM
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JonathanHill

Posts: 225
Joined: 09 September 2002

I think you need to instruct your profile picture to be visible for this well engineered idea to work.

Also operating in the second-hand (pre-loved!) business are Wilson Power Solutions in Leeds, and Bowers in Heanor.

-------------------------
Jonno
 01 January 2013 07:55 PM
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Snips

Posts: 26
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Ahhh, setting altered.
 01 January 2013 10:00 PM
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alanjhodgart

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It looks like a Tyke RMU operating handle, which is YSE i think so try Schneiders at Leeds.

There isn't much to the operating handle, should be simple enough for a machine shop to knock one up.

Failing that, both the on/off and earth switches on the gear can be operated without using the handle, or by placing a metal tube over the end. You'll loose the 3sec delay, but apart from that it works.

Alan
 02 January 2013 06:30 PM
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ArthurHall

Posts: 735
Joined: 25 July 2008

I agree with Alan that it looks similar to a Yorkshire tyke/FMS operating handle, and that it should be fairly easy to get a copy made.
I would be very cautious about using somthing that did not have the break back facility. Switchgear handles were modified to the break back style for very good reasons.
 02 January 2013 07:21 PM
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Snips

Posts: 26
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Thank you everyone for your imput, I'm gonna have a email round the firms mentioned and see what they come up with, if no luck i'll probably make one, its just easier to buy one . I don't think i'll try the alternitive method, i'd like to keep my authorisation once i get it.

Thanks guys

Ian
IET » Energy » HV switching handles

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