DELTA ZIG ZAG TRANSFORMERS

Delta Star transformers do not eliminate harmonics. K rated Isolation transformers can be designed to withstand harmonics and are designed to tolerate the heating effects of the harmonics created by electronic equipment.

These Delta Zig Zag transformers are also known as Harmonics mitigating which also mitigates the triplen harmonics.

Zig Zag secondary winding in the transformer causes phase shift in the triplen harmonics which results in cancelling effects.

Unlike Delta Star transformer the Delta Zig Zag transformer actually treat the triplen harmonics in the Zig Zag secondary winding. Our Zig Zag transformers are designed with Class H insulation and are designed to eliminate the “Skin effect”

The Zig Zag connection of the transformer is also called an interconnected star connection. This connection has some of the features of the star and the Delta connection.

Zig Zag connections in the transformer are used to trap the triplen harmonics (3rd, 6th, 9th, 15th etc).

Zig Zag winding traps the triplen harmonics current and prevents them from travelling upstream where they can produce undesirable effects.

The Zig Zag transformer has no phase displacement between primary and secondary winding. Therefore the Delta Zig Zag transformer can be used in the same manner as Delta-Delta or Star Star without any phase shifts.

Zig Zag transformers contain six coils in three cores. Zig Zag transformer is a combination of Delta and Star and has the advantages of both.

Zig Zag transformers offer a low impedance path to Zero sequence components under the fault condition so it can be used as an earthing transformer. Harmonic voltages presented in the system to some extent can be cancelled in zig zag winding due to the opposite connection of Zig Zag winding.