86-1975 IEEE Standard Definitions of Basic Per Unit Quantities for Alternating- Current Rotating Machines

inactive - Superseded by 86-1987
Buy Now
Organization: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 29 April 1975
Status: inactive
Page(s): 1 - 10
ISBN (Online): 978-1-5044-0454-9
DOI: 10.1109/IEEESTD.1975.7439719

Abstracts

Regular

When machine parameters are expressed in a properly selected per-unit system, the parameters of a wide range of machine sizes fall into relatively narrow ranges even though the actual values of these same parameters may vary over extremely wide ranges. The per-unit system thereby makes possible an easy comparison between different machines, essentially independent of size, without the use of conversion factors, and facilitates the identification of gross calculation errors. The proper selection of base values is fundamental to the usefulness of a per-unit system. Although per-unit quantities have been used for many years by designers of rotating machinery, the base quantities were not standardized, and it was necessary to define them in each publication. A working group of the Rotating Machinery Committee was created to propose a set of standard definitions. In 1961, a proposed standard (AIEE No. 86) was published for trial use. A critical review of that proposed standard has resulted in this present standard.

Document History

ST 86:2005 - For Motion-Picture Film — Magnetic Audio Records — Two, Three, Four and Six Records on 35-mm and One Record on 17.5-mm Magnetic Film
July 13, 2005 - Society of Motion Picture and Television Engineers

This standard specifies the position, dimensions, reproducing speed, and identity of the two-, three-, four-, or six-track magnetic audio records on 35-mm magnetic film, and one single-track record on 17.5-mm magnetic film. It also specifies the assignment of records to the various tracks on the mag...

RP 86:1991 - Video Record Parameters for 1-in Type C Helical-Scan Television Tape Recording
January 1, 1991 - Society of Motion Picture and Television Engineers

This practice specifies parameters of the recorded information essential to the interchange of 1-in type C helical-scan television tape recordings of the 525/60 monochrome or NTSC color systems. The parameters include video preemphasis characteristics, recorded carrier frequencies, and record-curren...

86-1987 - IEEE Recommended Practice: Definitions of Basic Per-Unit Quantities for AC Rotating Machines
February 16, 1987 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The proper selection of base values is fundamental to the usefulness of a per-unit system. Although per-unit quantities have been used for many years by designers of rotating machinery, the base quantities were not standardized, and it was necessary to define them in each publication. A working grou...

86-1975 - IEEE Standard Definitions of Basic Per Unit Quantities for Alternating- Current Rotating Machines
April 29, 1975 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

When machine parameters are expressed in a properly selected per-unit system, the parameters of a wide range of machine sizes fall into relatively narrow ranges even though the actual values of these same parameters may vary over extremely wide ranges. The per-unit system thereby makes possible an e...

Advertisement