C37.93-1987 IEEE Guide for Power System Protective Relay Applications of Audio Tones Over Telephone Channels

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Organization: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 January 1987
Status: inactive
Page Count: 32
ICS Code (Relays): 29.120.70
ISBN (Online): 0-7381-0897-9
DOI: 10.1109/IEEESTD.1987.79657

Abstracts

Standard

The guide contains information and recommendations for applying audio tones over telephone channels for power system relaying. Included are sections on transmitting and receiving equipment, leased telephone channels, application principles, installation, and testing. Reflected in this work is the knowledge and experience of equipment manufacturers and telephone companies as well as that of power utility users.<>

Document History

C37.93-2004 - IEEE Guide for Power System Protective Relay Applications of Audio Tones Over Voice Grade Channels
January 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Guidelines for applying audio tones over voice grade channels for power system relaying are provided in this document, including transmitting and receiving equipment, leased voice grade channels, application principles, installation, and testing. The primary purpose of this document is to guide the ...

C37.93-1987 - IEEE Guide for Power System Protective Relay Applications of Audio Tones Over Telephone Channels
January 1, 1987 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The guide contains information and recommendations for applying audio tones over telephone channels for power system relaying. Included are sections on transmitting and receiving equipment, leased telephone channels, application principles, installation, and testing. Reflected in this work is the kn...

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