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What is the required clearance for cooling for an Oil Filled Transformer from a wall or obstruction?

Issue:
Clearance requirements for Transformers from external obstructions

Product Line:
MV Transformers

Environment:
Applies to MV Transformers by SquareD/Schneider Electric

Cause:
Transformers radiate heat when in operation, which must be dissipated

Resolution:
Per the instruction manual; Follow all local and national codes when locating the Transformer. Make sure the radiators are clear of obstructions. The Transformer must be at least 24 inches from walls or other obstructions to allow circulation of air around each unit.