75 Hz uninterruptible power supply for the Apollo high voltage direct current transmission terminal

Author

Venter, F.P. ; Oberholzer, G. ; Marshall, D.A. ; Parsons, M. ; Huempfner, R.

Author_Institution

TGC, South Africa

Volume

2

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

813

Abstract

The original power supply to the high voltage direct current (HVDC) converter bridges used in the Apollo terminal, is via motor generator sets. The frequency of the output voltage is 75 Hz, making it a special application. The availability and reliability of the motor generator sets have reduced due to its age, impacting the safe and reliable operation of the HVDC scheme. Uninterruptible power supplies (UPSs) were installed to replace the motor generator sets. The application of the UPSs is unique due to the 75 Hz output voltage criteria

Keywords

HVDC power convertors; HVDC power transmission; bridge circuits; installation; project engineering; uninterruptible power supplies; 75 Hz; Apollo HVDC transmission terminal; HVDC power converter bridges; South Africa; availability; installation projects; output voltage criteria; output voltage frequency; reliability; uninterruptible power supply; Availability; Bridge circuits; DC generators; DC motors; Frequency; HVDC transmission; Power generation; Power supplies; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Africon, 1999 IEEE

Conference_Location

Cape Town

Print_ISBN

0-7803-5546-6

Type

conf

DOI

10.1109/AFRCON.1999.821873

Filename

821873