Ground and test apparatus with indicia means

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor

Patent

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Details

200 50AA, 361339, H02B 104

Patent

active

042020280

ABSTRACT:
A ground and test apparatus is provided for use in combination with switchgear apparatus of the type which includes upper and lower circuit breaker compartments. The switchgear contacts in each of the compartments are disposed in a reverse order such that bus-side contacts are adjacent the lower portion in the upper compartment and adjacent the upper portion in the lower compartment. Similarly, line or load side contacts are adjacent the upper portion in the upper compartment and adjacent the lower portion in the lower compartment. The ground and test apparatus is of a configuration suitable for insertion into the upper or lower compartments and includes indicia means for visually indicating the proper location of the bus-side and line or load side contacts in the upper or lower compartments. The ground and test apparatus includes inhibiting means coupled to the indicia means for physically inhibiting the insertion of the ground and test apparatus into the upper or lower compartments when the indicia means visually indicates an improper location of the bus-side and line or load side contacts. In a preferred form of ground and test apparatus, the inhibiting means includes a pair of bars disposed such that when one bar is up, the other bar is down. The two bars coact with a coded plate in the switchgear apparatus such that the down bar engages the coded plate and inhibits the insertion of the ground and test apparatus into either of the compartments when the indicia means visually indicates an improper location of the bus-side and line or load side contacts in the compartment.

REFERENCES:
patent: 2237367 (1941-04-01), Scott, Jr.
patent: 2600304 (1952-06-01), Krida
patent: 3130352 (1964-04-01), Guinan
patent: 3440371 (1969-04-01), Netzel et al.

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