EMD Shunt unit rating?

Ddatrainman · **Joined:** Fri Jun 19, 2015 4:08 pm **Posts:** 45

Hello,
Does anyone happen to know the current/amp rating for this Shunt unit?
This is installed in a F7, and we're trying to make a modification.

EMD Part # 8084131

Thanks!

AlcoC420 · **Joined:** Wed Dec 15, 2010 8:17 pm **Posts:** 270

If you take it loss, you may find a rating stamped on it.

Alco locomotives have some similar to this and the rating is stamped on them.

Pegasuspinto · **Joined:** Fri Mar 26, 2010 11:43 am **Posts:** 783

The rating will also be on the gauge. The shunt works by giving you a ratio of current through the gauge vs through the shunt. So if your gauge has 5A printed on it and full scales at 1000 A, you can assume this is a 1000A shunt with a ratio of 1:200

Mike Tillger · **Posted:** Mon Mar 14, 2016 9:52 pm

If you have the electrical print for the locomotive, on the far right side of the print is a listing of all the electrical parts used on the locomotive, find the loadmeter shunt and it should list the rated current and the output.

Mike Tillger

rcw7585 · **Joined:** Sun Nov 13, 2005 11:25 am **Posts:** 85

Ddatrainman wrote:

Hello,
Does anyone happen to know the current/amp rating for this Shunt unit?
This is installed in a F7, and we're trying to make a modification.

EMD Part # 8084131

[SNIP]

Thanks!

From Page 1 of this thread:

http://www.rypn.org/forums/viewtopic.php?f=1&t=39179.

Open the "Page 1 of 6" of the print for the F7A.

The schedule lists EMD 8084131 at Item Number 48 as a 1000A-100mV INDICATING METER SHUNT.

All thanks should go to Owen S. Paulsen.

R.C. Whitehead

Ddatrainman · **Joined:** Fri Jun 19, 2015 4:08 pm **Posts:** 45

rcw7585 wrote:

Ddatrainman wrote:

Hello,
Does anyone happen to know the current/amp rating for this Shunt unit?
This is installed in a F7, and we're trying to make a modification.

EMD Part # 8084131

[SNIP]

Thanks!

From Page 1 of this thread:

http://www.rypn.org/forums/viewtopic.php?f=1&t=39179.

Open the "Page 1 of 6" of the print for the F7A.

The schedule lists EMD 8084131 at Item Number 48 as a 1000A-100mV INDICATING METER SHUNT.

All thanks should go to Owen S. Paulsen.

R.C. Whitehead

This is perfect, exactly what I was looking for. Thank you