Internal arc gap for secondary side surge protection

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

1990-06-13

1992-07-14

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transformer protection

361111, 361118, 361129, H01T 408

Patent

active

051308800

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 arc gap extending between a first terminal and a second terminal on the secondary side of the distribution transformer, and a second 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 bypasses 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: 1923727 (1933-08-01), Hodnette
patent: 2670452 (1954-02-01), Yonkers
patent: 3312868 (1967-04-01), Vodicka

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