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

Topic Options
Rate This Topic
#181555 - 10/15/08 08:43 PM Ammeter connection
Merlin Offline
Member
Registered: 01/27/04
Posts: 170
Loc: NW Indiana
I have a 0-75 Ammeter that I need to install. This meter is a direct connection meter that does not require a current transformer. I am not sure of the proper connection this way. I have always previously insatlled the ones with the CT. Can someone give me the right connection procedures. I want to make darn sure that i hook it up right. Thanks, Merlin
Top
Work Gear for Electricians and the Trades
#181557 - 10/15/08 10:39 PM Re: Ammeter connection [Re: Merlin]
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
Does it have lugs big enough for 4ga wire?
_________________________
Greg Fretwell
Top
#181558 - 10/16/08 03:35 AM Re: Ammeter connection [Re: gfretwell]
Merlin Offline
Member
Registered: 01/27/04
Posts: 170
Loc: NW Indiana
If i remember right, it has 1/4-20 studs.
Top
#181561 - 10/16/08 06:48 AM Re: Ammeter connection [Re: Merlin]
JBD Offline
Member
Registered: 07/12/01
Posts: 599
Loc: WI, USA
A direct connected meter is installed in series with the load.
Top
#181562 - 10/16/08 08:22 AM Re: Ammeter connection [Re: JBD]
mikesh Offline
Member
Registered: 06/07/06
Posts: 613
Loc: Victoria, BC, Canada
-----0-0------- Line 1 --------------load--]
shunt ^
--------------- Neutral or Line 2 ----load-]


Edited by mikesh (10/16/08 08:25 AM)
Top
#181566 - 10/16/08 08:49 AM Re: Ammeter connection [Re: mikesh]
JValdes Offline
Member
Registered: 06/03/07
Posts: 301
Loc: South Carolina
Directly in series with the load. Take one leg of the load and connect it to the meter. Take the other supply leg and connect it to the meter.

Motor - Meter - Line. Example only
Top
#181579 - 10/16/08 03:08 PM Re: Ammeter connection [Re: JValdes]
Merlin Offline
Member
Registered: 01/27/04
Posts: 170
Loc: NW Indiana
Ok. I thought that was the case but didn't want to let the smoke out not being sure.
Top
#181587 - 10/17/08 12:57 AM Re: Ammeter connection [Re: Merlin]
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Originally Posted By Merlin
I have a 0-75 Ammeter that I need to install. This meter is a direct connection meter that does not require a current transformer. I am not sure of the proper connection this way. I have always previously insatlled the ones with the CT. Can someone give me the right connection procedures. I want to make darn sure that i hook it up right. Thanks, Merlin

Also, bear in mind that the supply will need to be de-energised while this meter is installed, trying to do a job like this with the power still connected is just silly.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin
Top
#181596 - 10/17/08 06:59 PM Re: Ammeter connection [Re: Trumpy]
BigB Offline
Member
Registered: 03/31/04
Posts: 719
Loc: Tucson, AZ USA
Funny, just a little while ago I was thinking about those old ammeters we used to have on the dashboards of our cars.
Top

Member Spotlight
Member Since: 05/03/03
Posts: 1137
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 93 Guests and 9 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
KrmtFrg, Stack, Scotto, Freecrowder, clee512

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