IET
Decrease font size
Increase font size
Topic Title: 400V motor efficiency
Topic Summary:
Created On: 29 October 2011 08:26 AM
Status: Read Only
Linear : Threading : Single : Branch
Search Topic Search Topic
Topic Tools Topic Tools
View similar topics View similar topics
View topic in raw text format. Print this topic.
 29 October 2011 08:26 AM
User is offline View Users Profile Print this message


Avatar for dougflorence                                      .
dougflorence

Posts: 74
Joined: 25 July 2008

I was just reading an article in a magazine about how standard electric motors lose 2-4% efficiency at 95% rated voltage. It did not comment about what happens to a motor run at overvoltage.

Machines for use in the EU are now required to run at a nominal volatge 400V +/- 10% so most motors are running around 5% over or under voltage. 380V is commonly the nominal supply voltage in mainland Europe

Is there are argument for supplying machines with motors efficiency optimised for the local supply voltage despite the requirements of EN60204-1 Electrical Equipment of Industrial Machines?
 01 November 2011 01:28 PM
User is offline View Users Profile Print this message



iie63674

Posts: 76
Joined: 17 May 2006

Good question, but why do you think this would be 'despite' the requirements of EN 60204-1? (By the way, the "industrial" was dropped in the 1993 edition).
Statistics

See Also:



FuseTalk Standard Edition v3.2 - © 1999-2014 FuseTalk Inc. All rights reserved.