A new relay for interconnected distribution in the UK-design and field experience

Author

Sanderson, J.V.H. ; Kyriakides, M.K. ; An, Wen ; Mackrell, A.J. ; Lethwai, H. R Post ; Rogers, W.J.S. ; Swinnerton, B.W.

Author_Institution

Power Eng. Consultants Ltd., Alderley Edge, UK

Volume

9

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

453

Lastpage

460

Abstract

The design of a new microprocessor based multifunctional relay for use on interconnected 33 kV circuits is described. The relay uses sequence component principles and rented low grade VF communication. It was needed urgently because rented metallic communication circuits, which are in widespread use, are being withdrawn in the UK. The relay development is unusual because of its measurement methods and because it can derive polarising voltage from existing 11 kV VTs. The time scales required were such that development, field trials and installation phases overlapped. The field experience is described

Keywords

distribution networks; microcomputer applications; power engineering computing; power system protection; relay protection; 33 kV; UK; interconnected distribution; low grade VF communication; microprocessor based multifunctional relay; polarising voltage; sequence component principles; Circuit faults; Communication channels; Earth; Integrated circuit interconnections; Microprocessors; Power system protection; Protective relaying; Relays; Switches; Telecommunications;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.277717

Filename

277717