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

Topic Options
Rate This Topic
#122982 - 02/12/06 05:43 PM Generator Jobs
electure Offline


Member
Registered: 12/24/00
Posts: 4259
Loc: Fullerton, CA USA
From RODALCO

Quote:
I got a couple of photo's here from a generator connect to a LV side of a distribution transformer after a 11 kV cable fault on polyloom cables.
I have seen on some threads that the generator topic gets raised wheater the neutrals have to be disconnected or not.


My 4 y.o. son Jacob, outside the taped area, he should have PPE on but only posing for the photo, normally the transformer door is closed when we are not working on site of course. Location, Awaruku road, Torbay, Auckland, North Shore.




LV side of the transformer. On the newer transformers we have isolating links which break the secondary side from the LV side of the Transformer. Marked as isolator in between Ammeters and fuses.
The orange cables are from the generator, 5 are used normally, R,Y,B, Neutral and Earth. Here in NZ we have the M.E.N. system.
This is one of the more unusual panel lay outs, normally the earth and neutral bar are on the right hand side of the LV panel.
The LV bushings are C,B,A,N at the top visible as B,Y,R and Green, Black.
The small orange, white wires are for the Hotwater pilots, The brown, blue wires are for the Streetlights.




Close up of the isolators. TF is 100 kVA and a 220 kVA generator is used to take the load. ( I will check with the crew on monday why the isolators are doubled up).




Earth / Neutral bar with 2 cables from generator. and the 3 phases to their resp. busbars




Overall view and corner of my hilux ute.




LV terminations to generator. ( all is 230 / 400 Volts 50 Hz ).




Control panel, load was about 40 Amps per phase, hardly visible on Ammeter, rest is self explanatory, sorry for the reflection on the glass. I gave the panel key to the faultman who already left while I was taking the photo's




Thanks, Ray






[This message has been edited by electure (edited 02-12-2006).]
Top
Tools for Electricians:
#122983 - 02/13/06 04:29 AM Re: Generator Jobs
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
Looks as though in a year or two you're going to have somebody inside those cabinets with you!
Top
#163801 - 05/17/07 03:02 PM Re: Generator Jobs [Re: pauluk]
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Good stuff Ray,
Can't imagine how this thread escaped my notice. crazy
Doubled isolators?.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top
#169673 - 10/11/07 11:30 AM Re: Generator Jobs [Re: Trumpy]
PaulCornwall Offline
Member
Registered: 06/02/03
Posts: 112
Loc: England
ahhh nice to see the old colours....

i do miss them
Top

Member Spotlight
Member Since: 02/23/13
Posts: 204
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 109 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Scotto, Freecrowder, clee512, Jdscott2005, FAIZAN

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