Remote switching by superimposed currents

Access Full Text

Remote switching by superimposed currents

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Journal of the Institution of Electrical Engineers - Part II: Power Engineering — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

© The Institution of Electrical Engineers
Published
Errata or comment

The paper briefly reviews methods for the centralized control of switching operations on distribution networks, by injection into the distribution system of currents which differ in frequency from the main supply. The supsrimposition of ultra-audio frequencies for limited and specific purposes, such as the protection or the remote switching of a transmission line, has not, so far, been employed to any large extent in this country, and is therefore beyond the scope of the paper.Several devices employed to respond to injection currents are briefly described; and the probable applications of this method of control are outlined. Particulars of the development of remote signalling over the network of a large electricity supply undertaking are given, together with reasons for the final adoption of the method selected. Particulars of the components of the equipment are given, and the power required is analysed for two frequencies.

Inspec keywords: carrier transmission on power lines; telecontrol; switches

Subjects: Switchgear; Telemetry; Power line systems; Telecontrol and telemetering components

References

    1. 1)
      • Chirol, M.: Paper No. 102, International Conference on Large High-Tension Electric Systems, 1929, 3, p. 613.
    2. 2)
      • H. Barker , H. Purslove . Centralized Control of Public Lighting and Off-Peak Loads by Superimposed Ripples. Journal I.E.E.
    3. 3)
      • Leeson, B.H.: `The Centralized Co-ordination of Manual, Automatic and Remote Control', Paper No. 346, International Conference on Large High-Tension Electric Systems, 1935, 3.
    4. 4)
      • H.H. Reeves . The Phantom Circuit Remote-Control System. General Electric Review
    5. 5)
      • D.R. Gales . Control Signalling over Networks. Electrical Times
    6. 6)
      • W. Duddell , A.H. Dykes , H.W. Handcock . Control of Meters, Public Lamps and Other Apparatus from the Central Station. Journal I.E.E.
    7. 7)
      • O.W. Holden . Carrier Current Controls Hollywood Street Lights. Electrical World
http://iet.metastore.ingenta.com/content/journals/10.1049/ji-2.1944.0095
Loading

Related content

content/journals/10.1049/ji-2.1944.0095
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Comment
A comment has been published for this article:
Discussion on “Remote switching by superimposed currents” before the Mersey and North Wales Centre, at Liverpool, 19th February, 1945
Comment
A comment has been published for this article:
Discussion on “Remote switching by superimposed currents” before the Transmission Section, 10th May, 1944
Comment
A comment has been published for this article:
Discussion on “Remote switching by superimposed currents” before the North-Western Centre, at Manchester, 4th November, 1944
Comment
A comment has been published for this article:
Discussion on “Remote switching by superimposed currents” before the Scottish Centre, at Edinburgh, 28th February, 1945
Correspondence
This article has following corresponding article(s):
Remote switching by superimposed currents