DocumentCode
2934946
Title
Comparison of Rotor Earth Fault Protections in Three Gorges Hydropower Plant
Author
Yi, Na ; Yi, Yawen
Author_Institution
Coll. of Electr. & Inf., Three Gorges Univ., Yichang, China
fYear
2011
fDate
25-28 March 2011
Firstpage
1
Lastpage
4
Abstract
Rotor earth fault protection is used to detect earth faults in the excitation circuit of synchronous machines, ping pong type and injecting-step-voltage rotor earth fault protection are both used in Three Gorges Hydropower Plant. This article analyzes both the principle and application of the two types of protections, together with the operation on giant generating set, advantages and disadvantages of two types of protection were compared with.
Keywords
earthing; fault location; hydroelectric power stations; machine protection; power generation protection; rotors; synchronous machines; earth fault detection; excitation circuit; injecting-step-voltage rotor; ping-pong type rotor; rotor earth fault protection; synchronous machine; three Gorges hydropower plant; Circuit faults; Earth; Generators; Grounding; Resistance; Rotors; Voltage measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location
Wuhan
ISSN
2157-4839
Print_ISBN
978-1-4244-6253-7
Type
conf
DOI
10.1109/APPEEC.2011.5748800
Filename
5748800
Link To Document