Journal ArticleDOI
The Mho Distance Relay
TLDR
The need for more adequate discrimination by means of distance relays, between fault conditions and power swings has been heightened in recent years by the construction of longer transmission lines and by the transmission of larger amounts of energy over existing lines as discussed by the authors.Abstract:
THE NEED for more adequate discrimination by means of distance relays, between fault conditions and power swings has been heightened in recent years by the construction of longer transmission lines and by the transmission of larger amounts of energy over existing lines.read more
Citations
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Journal ArticleDOI
A novel distance protection scheme for HVDC lines based on R-L model
TL;DR: Compared with many other single-end protections for HVDC lines, this novel distance protection has clear setting principles, lower sampling frequency, smaller calculation amount and faster operating speed.
Journal ArticleDOI
Application of the Ohm and Mho Principles to Protective Relays
TL;DR: The mho relay unit was first used 15 years ago as the directional unit for an early-type reactance relay as discussed by the authors, and it can be said that "mho" applied to relays is a new term applied to an old principle.
References
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Journal ArticleDOI
Impedances Seen by Relays During Power Swings With and Without Faults
TL;DR: The authors are at present in a period of power-system development during which it is essential that the best use be made of manpower and materials, and equipment must be re-evaluated and refinements made in the design of apparatus and methods of system control.
Journal ArticleDOI
Application of the Ohm and Mho Principles to Protective Relays
TL;DR: The mho relay unit was first used 15 years ago as the directional unit for an early-type reactance relay as discussed by the authors, and it can be said that "mho" applied to relays is a new term applied to an old principle.
Journal ArticleDOI
Protective Relaying for Long Transmission Lines
TL;DR: In this paper, the authors proposed the concept of the input impedance, which is the magnitude of the impedance or reactance of the line as it appears to the relay, and determined by the current and voltage existing at the relay location.
Journal ArticleDOI
Performance Requirements for Relays on Unusually Long Transmission Lines
TL;DR: In this paper, the performance of a 270-mile 154kv interconnection between systems of Nebraska Power Company and Kansas Gas and Electric Company is analyzed by means of "impedance circle diagrams".
Journal ArticleDOI
The MHO-Carrier Relaying Scheme A Simplified Carrier Scheme for Long or Heavily Loaded Transmission Lines
TL;DR: In this article, the authors argue that it is often necessary to put heavy loads on existing transmission lines rather than build new ones, because of the wartime problems of increased loads and shortage of materials.