Electricity: conductors and insulators – Boxes and housings – With electrical device
Patent
1995-03-15
1996-07-02
Tolin, Gerald P.
Electricity: conductors and insulators
Boxes and housings
With electrical device
200 5021, 361608, 361622, 439687, H02G 308, H02B 108
Patent
active
055324320
ABSTRACT:
A control unit forms a control center serving as one type of a control panel in an electric power system control system. The control unit accommodates equipments such as a circuit breaker, an electromagnetic switch, a zero-phase current transformer, and an operating transformer, and includes a substantially Z-shaped equipment mounting plate mounted between side plates of the unit to have an intermediate bent portion. The circuit breaker is disposed on a front face of a front mounting portion of the equipment mounting plate, and the current transformer is disposed on a back face thereof. The electromagnetic switch is disposed on a front face of a back mounting portion of the equipment mounting plate, and the thin operating transformer is isolated from other equipments and disposed on a back face thereof. Mounting the thin operating transformer on the back face of the back mounting portion of the equipment mounting plate causes the control unit to contain a bulk electromagnetic switch and other equipments without increasing a control unit size. Further, since the operating transformer is isolated from other equipments, other equipments are never affected in the event of burning accident.
REFERENCES:
patent: 4178624 (1979-12-01), Wilson
patent: 4380785 (1983-04-01), Demeyer
patent: 4502097 (1985-02-01), Takahashi
patent: 4602313 (1986-07-01), Takahashi
patent: 4621303 (1986-11-01), Rowe
Mitsubishi Denki Kabushiki
Tolin Gerald P.
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