Vertical Reach disconnects 3

[BLadewig]

I am investigating the possibility of using what someone calls a 'vertical reach' disconnect in a tight spot in a 230 yard. I would appreciate it if anyone could point me to any manufacturers of such a device, and also general information regarding the physical design.

Thank you in advance.

 

[SphincterBoy]

I think you might mean "Vertical Break Disconnect
Switch".

I also think you mean "230 kV" for your switchyard
voltage.

You might try Siemens (Germany) at this URL:

http://www.eci.siemens.com/marketplaces/servlet/index.jsp?

eci_command=CoeeSiemensCategoryDisplay&catalogId=33&category
Id=2795&categoryList=2540%2C2786%
2C2791&sdc_rh=com.siemens.eutilities.cda.presentation.ECIReq
uestHook&sdc_flags=0&sdc_sectionid=3&sdc_secnavid=0&sdc_3dnv
lstid=&sdc_sid=13550226656&sdc_countryid=0&sdc_mpid=27&sdc_u
nitid=999&sdc_contentid=1000000000003&sdc_langid=1&sdc_m4r=

 

[redtrumpet]

Try Cleaveland Price, Turner, ABB.

 

[BLadewig]

It turns out the name for the configuration is pantograph and semi-pantograph. Samples can be found at the following URL:

http://www.shengao.com/cp7-2e.htm

 

[redtrumpet]

What's your location? In Canada and the US, we would call the pantograph switch a vertical-break disconnect (as opposed to side-break or centre-break) as stated by Sphincter Boy.

http://www.cleavelandprice.com

http://www.turnerswitch.com

 

[BLadewig]

I'm in Phoenix, AZ, USA.

Everything I've seen for "pantograph" (

http://www.sdcem.com/Products/Sub_and_Trans/SP16506.html)

seems different enough from "vertical-break" (

http://www.turnerswitch.com/products/substation/tmk.html)

that I think my confusion is probably understandable.

Thanks in a roundabout way to sphincterboy's post, I now have enough information to know what questions to ask for the next step. And of course I'll know now to specify *kv* so that no one thinks I'm asking about switches for my Duracell-powered 230 Volt switchyard

 

[redtrumpet]

Maybe I've got it wrong, then. I took a quick look at the switch on the Shengao site and it looked like a vertical break switch rotated 90 degrees so it is mounted vertically instead of horizontally.

 

[BLadewig]

Ah, no, this is different. Still, thanks for helping out.

 

[jwerthman]

Southern States makes vertical break disconnect switches at 230 kV. Check their website at

http://www.southernstatesinc.com.

 

[redtrumpet]

You're right, Bladewig. On closer inspection the pantograph appears to be a centre-break switch.

 

[stevenal]

I think this picture is better:

http://www.abb.co.uk/global/abbzh/a...1C616&e=us&c=6CF78CE86F070810412567D9005A1B56

It seems the only grounded parts of the switch are those at ground level. No switch base.

Don't say amnday around here, it gets changed to arnday. (Circuit switcher dicussion)

 

[BLadewig]

Very helpful, thanks! I had even looked through their site.

 

[jbartos]

Suggestion: Visit

http://www.tde.alstom.com/Transmission/Pages/Disconnector1b.html

etc. for a little higher voltage rating.

 

[GRPatel]

BLadewig,
Are you satisfied. I add further infor here.
Pantograph disconnector is one type.
The other type is known as verticle break. In this one, the blade moves to 90 verticle (open) from the horizontal (closed) position from close to open position. When it is closing it reaches verticle.
ABB has, for example, complete range. You can contact them.

 

[GRPatel]

BLadewig,
Are you now satisfied? I add further info. here.
Pantograph disconnector is one type.

The other type is known as verticle break. In this one, the blade moves to 90 degrees verticle (open) from the horizontal (closed) position during opening operation.
ABB has, for example, complete range. You can contact them.

 

[BLadewig]

This has all been very helpful, thanks. I was already familiar with vertical break switches, but someone had recommended something called a 'vertical reach' switch for a limited-space application. Thanks to sphincterboy I discovered that this device is called a pantograph switch.

I think all I need now is a resource for any unusual O&M issues that might exist for pantograph devices...

 

[redtrumpet]

You get a star, stevenal, for the excellent ABB link. Now I know what a pantograph switch is.