ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
LED retrofit flickers
by rmiell. 01/18/19 08:49 PM
Israel
by Texas_Ranger. 01/14/19 07:12 AM
Free Code class in Maryland 1/16/2019
by Admin. 01/12/19 05:43 PM
Calling all Non-US members!! (Non-US only)
by RODALCO. 01/12/19 02:37 AM
sec cable code conflict
by jake2018. 01/11/19 07:36 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (dougwells), 42 guests, and 17 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
dc shunt motor #2255
06/29/01 06:37 PM
06/29/01 06:37 PM
F
frank  Offline OP
Member
Joined: May 2001
Posts: 376
windsor ontario canada
what will happen if you lose the shunt field
on a dc shunt motor

Work Gear for Electricians and the Trades
Re: dc shunt motor #2256
06/30/01 10:00 AM
06/30/01 10:00 AM
D
donles  Offline
Member
Joined: Apr 2001
Posts: 83
Pennsylvania
Quote
Originally posted by frank:
what will happen if you lose the shunt field
on a dc shunt motor


I think it will overspeed. Generally, there is a field loss relay in series with the field that would open the control circuit if it were to drop out.

Re: dc shunt motor #2257
06/30/01 12:02 PM
06/30/01 12:02 PM
F
frank  Offline OP
Member
Joined: May 2001
Posts: 376
windsor ontario canada
ok good because thats what i put on the exam.
i no a series motor will overspeed but i was not sure about a shunt thanks

Re: dc shunt motor #2258
09/02/01 07:48 AM
09/02/01 07:48 AM
B
bordew  Offline
Member
Joined: Aug 2001
Posts: 142
Vienna,Ohio, USA
Quote
Originally posted by frank:
ok good because thats what i put on the exam.
i no a series motor will overspeed but i was not sure about a shunt thanks


If you oopen the field switch to a shunt motor if will take off and self-destruct, this is why they put a field-loss relay in the control circcuit to prevent this from happening.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Grover
Grover
Sebago, ME, USA
Posts: 109
Joined: January 2005
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 4
Popular Topics(Views)
252,835 Are you busy
189,626 Re: Forum
179,292 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.018s Queries: 14 (0.004s) Memory: 0.9578 MB (Peak: 1.0901 MB) Zlib enabled. Server Time: 2019-01-23 17:59:29 UTC