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Normal environment distribution transformers ought to be mounted on pillars/columns or in the open air on the ground. Depending on specific circumstances, those in industrial settings, workshops, or suburban residential zones may be fitted indoors.

Configuration and Attributes of Column-Mounted or Open-Air Distribution Transformers

Pillar/Column Installation

1. Single Column Configuration

• Transformer, high-voltage drop fuse and high-voltage surge arrester are installed on the same pole. Simple structure, easy to install, less material, occupy less land, suitable for the installation of distribution transformers below 50KVA.

2. Double Pole Configuration

• Comprises a high-voltage line terminal pillar paired with an auxiliary pillar (approximately 7.5 meters in length), offering greater stability compared to single pillar installations. This configuration supports transformers ranging from 63KVA to 315KVA.

Open-Air Ground Installation

• For transformers positioned directly on an elevated platform (or pier) constructed with masonry, reaching a minimum height of 2.5 meters, this method facilitates easy transformer removal and installation. Moreover, it imposes no restrictions on the transformer's capacity, thereby offering versatility in terms of transformer size.