ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Where is Everyone?
by junkcollector - 06/20/21 08:50 PM
Happy Father's Day!
by Bill Addiss - 06/19/21 04:16 PM
A Risky Setup
by timmp - 06/18/21 08:08 PM
Conduit over Vinyl Siding
by Jim M - 06/16/21 08:30 PM
Updated Forum Software
by Admin - 06/15/21 10:23 AM
New in the Gallery:
2020 - 2021 Winter Project
2020 - 2021 Winter Project
by Bill Addiss, April 29
Garden 2021
Garden 2021
by Bill Addiss, April 26
Who's Online Now
0 members (), 7 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#30943 11/03/03 06:40 PM
Joined: May 2002
Posts: 1,716
R
Roger Offline OP
Member
Does anybody have schematics for a Westinghouse 75KVA 120/208 V 400HZ MG set or know where to get them. I have contacted CH service with no luck, although they are helping in tech support. (nice people)

The unit is probably 30 years old and was running on Thursday at 480 volts. It was moved to another state on Friday and reconnected on Saturday at 240V delta. (voltage was changed on motor and control transformer) Motor runs fine but cannot generate voltage.

There are some PC boards in the unit with one point connected directly to the #7 lead from motor. Obviously this has changed the voltage on this conductor but not sure what it does. (I think it has something to do with the DC excitation conversion)

Thanks

Roger

#30944 11/03/03 09:02 PM
Joined: Aug 2002
Posts: 1,081
T
Member
Do any of these links help you:
http://www.teco-wmc.com/contact.html
http://www.siemenswestinghouse.com/en/index.cfm

According to the WHOIS listing for westinghouse.com, the contact information is:

Westinghouse Electric Company
4350 Northern Pike
Monroeville, PA 15146

I don't know if they are the same Westinghouse folks you are trying to locate.

[This message has been edited by ThinkGood (edited 11-03-2003).]

#30945 11/03/03 09:04 PM
Joined: Apr 2002
Posts: 2,527
B
Moderator
It could be that the generator lost residual magnetism and needs field flashing. Some sets have an automatic means for doing this on startup that may not be working properly.

Be very careful—400Hz circuits will give you a nasty poke.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
RonKipperDatacom
RonKipperDatacom
Kansas City, KS
Posts: 30
Joined: January 2013
Top Posters(30 Days)
Admin 10
Trumpy 10
Popular Topics(Views)
280,440 Are you busy
213,522 Re: Forum
200,401 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5