H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 30/12 (2006.01) H01F 27/28 (2006.01) H02J 3/00 (2006.01)
Patent
CA 2701669
A method, apparatus, and system in which a neutral deriving transformer incorporates a zig-zag transformer configuration is provided. A zig-zag transformer provides an electrical load with a neutral wire. The zig-zag transformer may be electrically connected downstream of a main AC voltage step-down transformer. Additionally, three phase AC voltage lines can be routed to the zig-zag transformer such that the zig-zag transformer comprises a neutral deriving transformer that electrically connects to a ground conductor. The neutral deriving transformer might not be electrically connected to a neutral conductor of the main voltage step-down transformer. The zig-zag transformer can phase shift each winding by approximately 120 degrees and may derive a neutral for at least one single phase load connected to the zig-zag transformer and one of the three phase AC lines in order to provide a common neutral point that takes the place of a neutral cable that connects back to the main AC voltage step-down transformer.
Rosendin Electric Inc.
Smart & Biggar
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