Cooling error in transformer-temperature measurement

Autor:	Jerome J. Taylor, Frederick Bauer
Rok vydání:	1943
Předmět:	Engineering business.industry law Electromagnetic coil Shutdown Electrical engineering Measurement uncertainty Resistor business Transformer Temperature measurement law.invention
Zdroj:	Electrical Engineering. 62:138-138
ISSN:	0095-9197
DOI:	10.1109/ee.1943.6435645
Popis:	In testing transformers, the standard method of determining winding temperature consists of measuring winding resistance at short intervals of time following shutdown, then plotting the readings and projecting them back to the instant of shutdown. The resistances are usually measured by the voltmeter-ammeter or by a bridge. In either method a d-c power source is applied to the circuit, directly or through a resistor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4509fd696df8ab226d051f3cf6063086 https://doi.org/10.1109/ee.1943.6435645 Zobrazit plný text záznamu