The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

   
Topic Options
Rate This Topic
#141210 - 06/22/04 01:58 PM Yet another 11kV picture
pauluk Offline
Member
Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Just another pole that caught my eye on my tour of back lanes the other day.

There are 11kV overheads in and out at near right-angles, with one set with a triangular configuration of insulators rather than the usual horizontal in-line arrangement.

Add an air-break switch to underground feeder, plus another air-break switch onto the transformer which feeds the nearby houses with the associated LV fuses below, and there's not much room left to squeeze anything else onto this pole!




[This message has been edited by pauluk (edited 06-22-2004).]
Top
Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
#141211 - 06/23/04 08:50 PM Re: Yet another 11kV picture
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
That is surely one busy distribution pole. It may not be up to “official” standards.

In North America, the back-to-back V-shaped “cutouts” would typically be fused, but could also be used as a non-fused isolation point with the use of a "slug."




[This message has been edited by Bjarney (edited 06-23-2004).]
Top
#141212 - 06/25/04 02:02 AM Re: Yet another 11kV picture
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8560
Loc: SI,New Zealand
Bjarney,
I agree that there is a fair bit of gear on this pole.
You should see some of the silly gear we have here on our poles here.
There is a pole up in Cairnbrae, (a district here), that has: (get this)
  • A bank of PFC capacitors for the 22kV lines on top.
  • A backup Alternator in a Container feeding an Essential Supply (local Abalone farm) up the road from this pole.
  • A remote control ABS at the top of the pole, to disconnect the 33kV lines for sectionalising purposes.
  • An 11kV pole mounted Transformer, w/ 3 DDO fuses to supply the local water supply pump for the irrigation system.
  • The 22 and 11kV lines have DDO's for isolating faults on the lines on the Ring in the large block that this circuit feeds.

There is talk of more gear going on in this area.
I just hope that it isn't going to be on the same pole.
There is not even a street-light on it.
In the few times I have been called there I have only had the spot light on my Faults Truck to work by.
Glad I use a Hotstick and not have to climb that one!.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top
#141213 - 06/25/04 01:41 PM Re: Yet another 11kV picture
classicsat Offline
Member
Registered: 11/23/02
Posts: 449
You mean to tell me an alternator (I suspect you mean stand-by generator), is actually ON the pole? And at that one for a specific customer, and the responsibility of the utility? If so, what powers it? Or is your reference to alternator something else?

Around here, if a customer wants emergency power, they are resposible for the procurement, safe installation, maintenance, and fuelling of said generator.
Top
#141214 - 07/02/04 01:47 AM Re: Yet another 11kV picture
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8560
Loc: SI,New Zealand
classicsat,
We use the term Alternator in the Supply Industry, to denote any equipment that supplies AC energy, with the use of a Prime Mover.
Also, no, the equipment is not mounted on the pole, ever seen the size of a Transit Container?, (the sort that they use on Ships).
Essential supply is run by the Lines Company, where the supply is NOT allowed to be turned off.
I have installed a lot of Essential supplies to houses, here where the owner has just come home from Hospital and is on a personal Dialysis machine.
A small break in supply is allowed, but with the installation becoming a Electro-Medical installation, you have to install 10mA RCD's (as opposed to the 30mA ones)
Contactors are used to transfer the voltage over and when the Mains drops out, it triggers the Generator into life.
We supply these Generators free of charge to Dialysis Patients, as well as the Fuel,installation and maintenance, they have enough to worry about, why compound things?.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top

Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box

Recent Posts
License exam
by TRUE POWER
Today at 09:16 PM
Looking for older post
by sparkyinak
Today at 12:27 AM
Members: Non-Members: Did you know?
by Admin
Yesterday at 02:34 PM
Safety at heights?
by HotLine1
01/21/17 08:51 PM
International Wire Colour Codes
by Texas_Ranger
01/21/17 03:29 PM

Who's Online
1 registered (Admin), 74 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
New in the Gallery:
Desk-mounted "power-board"
Top Posters
gfretwell 9066
Trumpy 8560
pauluk 7693
HotLine1 6833
sparky 5545
Member Spotlight
Member Since: 03/13/07
Posts: 167

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals