NDLI: Uncovering the hidden capacity in your medium voltage AC motors

Content Provider	IEEE Xplore Digital Library
Author	Newman, F.P.
Copyright Year	1997
Description	Author affiliation: Southeast Paper Manuf. Co., Dublin, GA, USA (Newman, F.P.)
Abstract	An inevitable part of any major paper mill expansion or modernization project is the need to provide additional horsepower for several loads in excess of that which the vendor recommended and the engineers selected. Classic examples of this problem are such things as pressure screens, pulpers and some large pumps. After exhausting all other "normal" remedies, such as correcting mechanical problems or adjusting operating conditions, the usual result is that a new motor of a higher rating is ordered and eventually installed. This decision is then usually followed by the ordering of a new spare since the spare previously ordered will not be of the correct rating. The problem is further compounded by the fact that one may also be stuck with at least two motors that one no longer needs. The total cost is, of course, dependent on the horsepower involved and the number of applications requiring correction, but these situations are generally very expensive by anyone's standards. Although this is the usual scenario, it need not be the only option in all cases. The introduction a few years ago of reliable, solid state, temperature-based overload devices has opened up another avenue for those applications where the motor is just a "little bit" undersized. In order to do this, however, it is necessary to redefine the thinking of a lot of engineering, maintenance, and operating personnel with respect to motor overload protection.
Starting Page	194
Ending Page	198
File Size	398003
Page Count	5
File Format	PDF
ISBN	0780339193
ISSN	01902172
DOI	10.1109/PAPCON.1997.595240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Medium voltage AC motors Relays Protection Costs Protective relaying Heating Solid state circuits Pulp manufacturing Reliability engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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