Drawout type switch gear

Details Drawout type switch gear Drawout type switch gear

1992-09-15

1994-08-09

Barrett, Glenn J.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electrical power distribution systems and devices

200 50AA, 200308, H02B 1100

Patent

active

053372107

ABSTRACT:
In a drawout type switch gear, rotation of the lead screw (7) is locked automatically at the connected position and the test position of the drawout/push-in unit (R), symbols or marks for representing these positions are provided on an indicator plate (18), which is driven laterally behind the front panel of the circuit breaker by a cam-rod type motion-direction transforming link (23, 19, 21, 18) and is arranged to be visible through display windows (15c) provided on the front panel (15). The insertion of the detachable handle (111) into a polygonal hole (7a) provided on the front end of the lead screw (7) is Inhibited by a blocking arm (110a), which is interlocked with a lock plate (16) driven by motion of the drawout/push-in unit (R).

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