Dual voltage distribution transformer with internal varistor sur

Details Dual voltage distribution transformer with internal varistor sur Dual voltage distribution transformer with internal varistor sur

1985-05-31

1986-11-04

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transformer protection

361 40, 361111, 361118, H02H 704

Patent

active

046212981

ABSTRACT:
A dual voltage distribution transformer is protected by an internally installed, multi-rated surge arrester which is selectively connected with plural primary windings by a dual voltage switch such as to establish a high surge voltage protection level when the primary windings are connected in series by the switch and a correspondingly lower surge voltage protection level when the primary windings are connected in parallel by the switch.

REFERENCES:
patent: 3211956 (1965-10-01), Dornbush
patent: 3855521 (1974-12-01), Kiuchi
patent: 4441149 (1984-04-01), Hase

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