NDLI: Secondary networks to serve industrial plants

Content Provider	IEEE Xplore Digital Library
Author	Powel, C. A. Barnett, H. G.
Copyright Year	1931
Abstract	The design of distribution systems for industrial plants will always constitute individualized problems. There is little hope that any particular form of distribution will be applicable to all industrial plants because the processes of manufacture and the arrangement of buildings differ widely depending on circumstances. There are, however, certain fundamental advantages to the network system of distribution which justify a much wider use than it has found to date. By far the greater part of factory distribution is still of the radial type and the network system must compete with the radial system in economy, reliability, and flexibility. The purpose of this paper is to show that it can do so successfully. Assuming that the product of the factory is such that a relatively large number of small and medium-sized motors are required rather than a few large ones, it will be found that the physical location in the factory of the various machines is not of such importance in the layout of the distribution scheme as the total connected load, the diversity factor and the over-all power factor, and it is on its ability to take advantage of diversity that some of the economy of the network system rests. The information available on the load density of factories is quite fragmentary. For the more common products of manufacture it varies from 5 to 30 kw per 1,000 square feet, 10 to 20 being the value mostly encountered, although in exceptional cases it may go as high as 100 kw. Load density should not be confused with the rating of the installed motors and utilization devices. The diversity between the various loads will considerably reduce this figure, and the “demand-factor,” that is, the ratio of the maximum demand over a period of time to the sum of the utilization device ratings, which is of significance in determining the transformer capacity to be installed, may be 50 per cent or less.
Starting Page	154
Ending Page	156
Page Count	3
File Size	1455316
File Format	PDF
ISSN	00959197
Volume Number	60
Issue Number	4
Language	English
Publisher	American Institute of Electrical Engineers
Publisher Date	1941-04-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Production facilities Oil insulation Circuit faults Power cables Buildings Reliability Circuit breakers
Content Type	Text
Resource Type	Article

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

Secondary networks to serve industrial plants

Study of primary networks at pittsburgh

Power supply to distribution substations in wartime

Oil-break circuit breakers

Features of substation in San Francisco

“Dry” plating process

A 66-kv subtransmission plan

A distribution system for war-time plant expansion

Electrical maintenance problems in continuous process plants

Secondary networks to serve industrial plants

Similar Documents

Secondary networks to serve industrial plants

Study of primary networks at pittsburgh

Power supply to distribution substations in wartime

Oil-break circuit breakers

Features of substation in San Francisco

“Dry” plating process

A 66-kv subtransmission plan

A distribution system for war-time plant expansion

Electrical maintenance problems in continuous process plants

Secondary networks to serve industrial plants