EMTP transient modeling of a distance relay and a comparison with EMTP laboratory testing

Author

Wilson, Robert E. ; Nordstrom, Jerry M.

Author_Institution

Idaho Univ., Moscow, ID, USA

Volume

8

Issue

3

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

984

Lastpage

992

Abstract

A method to test the transient performance of a sampled-data relay is given. A model of one measuring unit of a digital relay is created on a personal computer. The simulations are compared with laboratory results obtained by applying digitally generated waveforms to the actual relay. Computer modeling of the digital relay is done within the models version of the Transient Analysis of Control System (TACS) subsection of the ElectroMagnetics Transient Program (EMTP). The input filter, analog-to-digital converter, Fourier fundamental frequency detector, and the relay measuring principle of one digital microprocessor-based relay are modeled. An actual 115 kV 150 mile long transmission line is simulated using the EMTP.<>

Keywords

analogue-digital conversion; automatic test equipment; automatic testing; digital simulation; laboratories; microcomputer applications; power system analysis computing; power system protection; power transmission lines; relay protection; software packages; 115 kV; 150 miles; EMTP; ElectroMagnetics Transient Program; Fourier fundamental frequency detector; TACS; Transient Analysis of Control System; analog-to-digital converter; computerised instrumentation; digital simulation; distance relay; input filter; laboratory testing; microprocessors; personal computer; power system analysis computing; relay protection; transient modeling; transmission line;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.252626

Filename

252626