Interaction of machine and line protection within a coordinated substation control system

Station control systems coordinating control and protection allow an easy interconnection of machine and line protection and provide reliable, fast, and flexible protection of the machine and the related network. Such a concept is described. It provides a unified system which coordinates substation...

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Bibliographic Details
Published in:IEEE transactions on power systems 1992-05, Vol.7 (2), p.921-925
Main Authors: Ungrad, H., Brand, K.-P., Cadotsch, C.
Format: Article
Language:English
Subjects:
Applied sciences
Communication system control
Control systems
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Microprocessors
Power networks and lines
Power system protection
Power system relaying
Power system reliability
Protective relaying
Samarium
Shafts
Substation protection
Substations
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Summary:Station control systems coordinating control and protection allow an easy interconnection of machine and line protection and provide reliable, fast, and flexible protection of the machine and the related network. Such a concept is described. It provides a unified system which coordinates substation control and protection based on microprocessors in a decentralized configuration. Numerical relays have a serial interface normally. Microprocessor-based substation control provides both global data and communication links. Therefore, the framework of a substation control system coordinating control and protection provides all facilities to solve the problem of machine protection generally. The basic considerations, the concept, and examples are presented.< >
ISSN:0885-8950
1558-0679
DOI:10.1109/59.141805