Internal arc gap for secondary side surge protection and dissipa

Details Internal arc gap for secondary side surge protection and dissipa Internal arc gap for secondary side surge protection and dissipa

1991-05-08

1993-02-02

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transformer protection

361 40, 361129, H02H 704

Patent

active

051842700

ABSTRACT:
A system and device are disclosed for protecting the primary windings of a distribution transformer from surge current which exceed a predetermined level including a tank for accommodating the distribution transformer, a first expanding arc gap extending between a first terminal and a second terminal on the secondary side of the distribution transformer, and a second expanding arc gap extending between a third terminal and the second terminal on the secondary side of the distribution transformer. The arc gap being mounted within the gas space of the tank which accommodates the distribution transformer such that a surge current which exceeds the predetermined level is directed through the arc gaps and dissipated by the expanding arc gaps thereby bypassing the secondary windings in order to protect the primary windings of the distribution transformer. The internally mounted arc gaps being effective when applied to either interlaced or non-interlaced distribution transformers.

REFERENCES:
patent: 833207 (1906-10-01), Frank
patent: 1271407 (1918-07-01), Wolff
patent: 1923727 (1933-08-01), Hodnette
patent: 2670452 (1954-02-01), Yonkers et al.
patent: 3312868 (1967-04-01), Vodicka

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