Application of out-of-step relaying for small generators in distributed generation

Author

Malmedal, Keith ; Sen, Pankaj K. ; Nelson, John P.

Author_Institution

NEI Electr. Power Eng. Inc., Wheat Ridge, CO, USA

Volume

41

Issue

6

fYear

2005

Firstpage

1506

Lastpage

1514

Abstract

The recent popularity of distributed generation (DG) has caused an increasing number of small generators (rated between 100 kVA and 12.5 MVA) to be connected to the power system at the distribution level (480 V to 12.47 kV). Some utilities require that out-of-step relays be installed by the generation owner at the point of common coupling (PCC). This paper will examine out-of-step relaying practices as they apply to small generation protection. It will consider the value, purpose, and applicability and provide guidelines for setting of this type of relay when employed.

Keywords

distributed power generation; power generation protection; relay protection; 480 V to 12.47 kV; distributed generation; point of common coupling; power system; small generation protection; small generator out-of-step relaying; Distributed control; Distributed power generation; Power generation; Power system interconnection; Power system protection; Power system relaying; Power system stability; Power system transients; Protective relaying; Relays; Device 78; distributed generation; generator protection; out-of-step relay;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2005.857470

Filename

1542303