An ANSI cooling class designation indicating forced oil water cooling using a separate water loop in the oil to take the heat to a remote heat exchanger. Typically used where air cooling is difficult [..]

Constructed or treated so as to reduce harm by exposure to a moist atmosphere.

A standard test performed on transformers to determine instantaneous direction of the voltages in the primary compared to the secondary (see Transformer Tests

A

An Ansi (American National Standard Institute) cooling class designation indicating open, natural-draft ventilated transformer construction, usually for dry-type transformers.

The temperature of the surrounding atmosphere into which the heat of the transformer is dissipated.

unit of current flow.

An organization that provides written standards on transformer [6OOv and below (ANSI C89.1), 601~ and above (ANSI C57.12)

A transformer in which part of the winding is common to both the primary and the secondary circuits.

Basic Impulse Level