| |
|
|
|
|
|
|
|
|
1. |
Record Nr. |
UNINA9910135768903321 |
|
|
Titolo |
ANSI/IEEE Std C57.13.1-1981 : IEEE Guide for Field Testing of Relaying Current Transformers / / Institute of Electrical and Electronics Engineers |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
New York, New York : , : IEEE, , 1980 |
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (17 pages) |
|
|
|
|
|
|
Disciplina |
|
|
|
|
|
|
Soggetti |
|
Current transformers (Instrument transformer) |
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Sommario/riassunto |
|
A description is given of field-test methods that will ensure that the current transformers used as a source of relay input current are connected properly, are of marked ratio and polarity, and are in condition to perform as designed both initially and after a period of service. The standard covers safety considerations; current transformer types and construction and the effect of these on test methods; insulation resistance tests; ratio tests; polarity check; winding and lead resistance (internal resistance); excitation tests; burden measurements; and specialized situations. |
|
|
|
|
|
|
|
| |