NDLI: Delta-cross connections of transformers for parallel operation of two- and three-phase systems

Content Provider	IEEE Xplore Digital Library
Author	Roux, George P.
Copyright Year	1905
Description	Two methods of transformer connections, the tee-cross and the delta-cross, are described with their application for parallel operation of two-phase and three-phase systems. An attempt is made to explain as clearly as possible the voltage, current and phase relation, and the dephasing action which take place in each case. The delta-cross system of connections lends itself to a great number of applications, either for the parallel operation of two-phase and three-phase systems or for the simultaneous supply of two-phase and three-phase power from one bank of transformers. It is to be noted that in this system of connections no special taps are required, except a 50 per cent tap on one transformer (usually easily obtainable), the compensation of one phase of the system being done externally by means of a small booster transformer. The simplicity of connections, the feature that no special transformers are required, and no special taps necessary, give the electrical engineer facilities to meet promptly and economically the requirements inherent to two-phase and three-phase simultaneous distribution from only one transformer bank.
Starting Page	1683
Ending Page	1694
Page Count	12
File Size	1325536
File Format	PDF
ISSN	00972444
Volume Number	34
Issue Number	8
Language	English
Publisher	American Institute of Electrical Engineers
Publisher Date	1915-01-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Generators Power transformer insulation Windings Abstracts Delays Power generation Wires
Content Type	Text
Resource Type	Article

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