Visible break switch

Details Visible break switch Visible break switch

1988-03-07

1990-03-20

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144C, 200148B, 200149A, H01H 3388

Patent

active

049103679

ABSTRACT:
An SF.sub.6 puffer interrupter switch includes one or more viewing windows located on the housing. The viewing windows are strategically located on a sidewall of the housing to allow all of the puffer interrupter assemblies within the housing to be viewed from one viewing window. The puffer interrupter assemblies that house the interrupting contacts are provided with clear puffer tubes to allow the operator to verify the position of the interrupting contacts within the puffer tubes from the viewing window located on the housing. The SF.sub.6 interrupter switch housing is pressurized. By assembling the viewing window assemblies from the inside of the housing, the positive pressure within the housing assists in sealing the viewing window assemblies to minimize the leakage of the SF.sub.6 gas. Additional viewing windows may be used to allow light inside the housing.

REFERENCES:
patent: 4168480 (1979-09-01), DeLucia

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