Aging tests of amorphous current transformers used in ground fault interrupters

1990 ◽  
Vol 26 (5) ◽  
pp. 2005-2007 ◽  
Author(s):  
A. Nafalski ◽  
G. Matras ◽  
A. Wac-Wlodarczyk ◽  
H. Stryczewska
Keyword(s):  
Current Transformers ◽  
Ground Fault

Methods of Getting Zero Sequence Current in a Single-Phase-to-Ground Fault

2012 ◽  
Vol 614-615 ◽  
pp. 891-894
Author(s):  
Yu Xia Li
Keyword(s):  
Single Phase ◽  
Current Transformer ◽  
Fault Line ◽  
Current Transformers ◽  
Ground Fault ◽  
Electronic Current ◽  
Digital Substation ◽  
Current Transducer ◽  
Zero Sequence ◽  
The Common

After a single-phase-to ground fault, fault voltage and current information should be sampled accurately for automatic equipments to detect the fault line. And zero sequence current is the very key element to detect the fault line after an earth fault happens. The widely used methods of getting zero sequence current are in details described. The common methods are by zoro sequence current transformers, by wye connections of three CTs, and by zero-sequence current transducer. A new method by magnetic field induction and the structure of magnetic induction device are introduced, as well as a new way by electronic current transformer and its application in digital substation.

Alternate Current Transformers

1896 ◽  
Vol 42 (1084supp) ◽  
pp. 17330-17331
Author(s):  
J. A. Fleming
Keyword(s):  
Alternate Current ◽  
Current Transformers

Current transformers

1945 ◽  
Vol 15 (60) ◽  
pp. 46
Author(s):  
A.R. Rumfitt
Keyword(s):  
Current Transformers

Reliability Improvement of Ground Fault Protection System Using an S-Type Horn Attachment Gap in AC Feeding System

2009 ◽  
Vol 129 (10) ◽  
pp. 949-956
Author(s):  
Kohji Ajiki ◽  
Hiroaki Morimoto ◽  
Fumiyuki Shimokawa ◽  
Shinya Sakai ◽  
Kazuomi Sasaki ◽  
...  
Keyword(s):  
Protection System ◽  
Feeding System ◽  
Reliability Improvement ◽  
Ground Fault ◽  
Fault Protection ◽  
Ground Fault Protection

Feature Extraction for the Ground Fault Factor of High Voltage System Interface

2018 ◽  
Vol 138 (3) ◽  
pp. 206-211
Author(s):  
Kazunori Nishimura ◽  
Yusaku Marui ◽  
Wataru Sunayama
Keyword(s):  
Feature Extraction ◽  
High Voltage ◽  
Ground Fault ◽  
High Voltage System
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