FIELD: electricity.
SUBSTANCE: three-phase voltage transformer includes three-leg core, primary and secondary windings assembled as symmetrical Y-network. Three-phase compensating winding is used both for phase displacement compensation and for closing magnetising currents of the third harmonics. Compensating winding is assembled in the form of closed equilateral triangle and connected at the side of primary winding neutral.
EFFECT: reduced dimensions and simplified designed owing to combined functions of compensating winding.
1 dwg
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