摘要 |
<p>A method and an arrangement for voltage measurement with a transformer configuration comprising three single pole voltage transformers (11, 12, 13) having tertiary windings open-delta connected with each other, the arrangement comprising means arranged to apply a correction to measured secondary voltages on the basis of one or more parameters of the voltage transformers (11, 12, 13) and/or one or more quantities in a known relation to one or more parameters of the voltage transformers, one or more parameters of a circuit connected to the secondary windings (41, 42, 43) and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the secondary windings, and one or more parameters of a circuit connected to the tertiary windings (31, 32, 33) and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the tertiary windings.</p> |
申请人 |
ABB TECHNOLOGY AG;WAHLROOS, ARI;ALTONEN, JANNE;MAEHOENEN, PENTTI |
发明人 |
WAHLROOS, ARI;ALTONEN, JANNE;MAEHOENEN, PENTTI |