© The Institution of Electrical Engineers
A 3-phase capacitor-voltage-transformer simulation is described which, when used in conjunction with a conventional artificial transmission line, allows complete relaying schemes to be tested. The accuracy of the simulation is confirmed by comparison of its response with that of a full-scale capacitor voltage transformer. Conjunctive distance-relay/capacitor-voltage-transformer tests are reported showing that transient errors degrade relay performance in speed and stability. Various methods for providing a more faithful voltage signal to supply the relay circuits are discussed.
References
-
-
1)
-
G.A. Gertsch
.
Progress in the field of capacitive voltage transformers.
Sci. Electr.
,
1 -
27
-
2)
-
Gertsch, G.A., Antolic, F., Gygax, F.: `Capacitor voltage transformers and protective relays', Paper 31-14, CIGRÉ, 1968.
-
3)
-
The effects of coupling-capacitor potential-device transients on protective relay operation.
AIEE Trans.
,
2089 -
2096
-
4)
-
L.W. Marks
.
Improvements in cascade potential transformers.
IEEE Trans.
,
669 -
675
-
5)
-
IEC: ‘Recommendations on voltage transformers’. Publications 186, 1969, and 186A, 1970..
-
6)
-
Sweetana, A.: `Transient response characteristics of capacitive potential devices', Paper 71 TP 197-PWR, IEEE Winter Power Meeting, 1971, New York.
-
7)
-
E.L. Harder ,
P.O. Languth ,
C.A. Woods
.
Transient and steady-state performance of potential devices.
AIEE Trans.
,
91 -
102
-
8)
-
Harder, E.L.: `Transient compensation of potential-device burdens', 2 510 631, June 1950, US Patent.
-
9)
-
`Specification for voltage transformers', BS 3941, 1965.
-
10)
-
Jacquin, M., Vigreux, J., Ricard, L.: `Réducteur de tension capacitif à amplificateur électronique pour postes blindés a très haute tension', Paper 2.2, International meeting on data processing in h.v. stations: Measuring transducers and protective relays, June 1973, Liège.
-
11)
-
R.L. Stauffer ,
E.O. Shepard
.
A transistorised bushing potential device.
AIEE Trans.
,
410 -
416
-
12)
-
: `Considerations of dynamic performance and testing procedures for high speed protection and associated current transformers and voltage transformers', Study Committee no. 34, Interim Report, April 1969, CIGRE STUDY COMMITTEE No. 34.
-
13)
-
Müller, W.: `Tendances de développment dans la construction des transformateurs de mesure – plus particulièrement dans le domaine des transformateurs de type non classique', Paper 2.5, International meeting on data processing in h.v. stations: Measuring transducers and protective relays, June 1973, Liège.
-
14)
-
Ungrad, H., Ilar, F.: `Fonctionnement des relais de protection statiques et des transformateurs de mesure de courant et de tension', Paper 3.2, International meeting on data processing in h.v. stations: Measuring transducers and protective relays, June 1973, Liège.
-
15)
-
Gertsch, G.A.: `Capacitive voltage transformers and their operation in conjunction with system protection relays', 318, CIGRÉ Report, 1960.
-
16)
-
L.W. Marks
.
Line discharge by potential transformers.
IEEE Trans.
http://iet.metastore.ingenta.com/content/journals/10.1049/piee.1974.0321
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