Earthing Transformers


A grounding transformer or earthing transformer is a type of auxiliary transformer used in three-phase electric power systems to provide a ground path to either an ungrounded wye or a delta-connected system. Grounding transformers are part of an earthing system of the network.

Earthing transformers are classified as standard reactors. An earthing transformer (neutral coupler) is a three-phase transformer connected to the power system to provide a neutral connection for earthing, either directly or via impedance. The earthing transformers may in addition supply a local auxiliary load.

A zigzag transformer is a special-purpose earthing transformer with a zigzag or "interconnected star" winding connection, such that each output is the vector sum of two phases offset by 120°.

The earthing transformer creates a neutral point for a network. ZN connection is usually applied. Z connection provides linear and specified zero sequence impedance. YN+d can also be applied.

Product Scope

Voltage level: up to 170 kV

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Optimized design fully in line with substation system design. Lots of references in different voltage systems and substation configurations

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Our business takes pride in giving Submerged arc furnace transformer, Induction Melting Furnace transformers, Power Transformer, Dry type transformer, OLTC Fitted transformer, Distribution Transformers, Earthing Transformers, Auxilliary Transformers, etc. of superior quality at very affordable charges.

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