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EP0543352A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Switchboard

Assignee: Hitachi Ltd
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Filing: 1992-11-17
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Granted: —
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Expires: 2012-11-17
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Abstract

Abstract A switchboard (1) comprises a plurality of bus bars (10, 10a, 10b) as a power source, a plurality of electrical equipments (9, 15, 16, 17) and guide rails (110, 120) carrying at least one of said electrical equipments (9). A plurality of switchboard unit casings (3), which accommodate the respective electrical equipments (9, 15, 16, 17), are attached to a common bus bar casing (2), which accommodates the bus bars (10, 10a, 10b), while permitting detachment therefrom. The bus bars (10, 10a, 10b) extend horizontally and are disposed in the vertical direction with predetermined intervals. At least one of the switchboard unit casings (11) accommodates a plurality of vacuum circuit breakers (9) and a plurality of load side conductors (51) to be connected to load side cables (61), first disconnecting switch units (31) interconnecting the bus bars (10, 10a, 10b) and the vacuum circuit breakers (9), and second disconnecting switch units (34) interconnecting the vacuum circuit breakers (9) and the load side conductors (51). The contact moving axes of the respective vacuum circuit breakers (9) extend horizontally and in the depth direction of the switchboard unit casing (11), which direction is perpendicular to the extending direction of the bus bars (10, 10a, 10b). The vacuum circuit breakers (9) are disposed vertically with predetermined intervals, and the load side conductors (51) extend perpendicularly to the contact moving axes of the vacuum circuit breakers (9) and in the vertical direction.

Inventors

  • 👤 Toru Tanimizu
  • 👤 Koutarou Takematsu
  • 👤 Yoshitomo Gotoh
  • 👤 Toru Tsubaki
  • 👤 Fumio Wakasa
  • 👤 Toshiaki Izumi
  • 👤 Satoru Kajiwara

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 15:00
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B13/00; H02B13/02; H02B13/035; H02B13/0354; H02B11/00; H02B11/12; H02B11/173

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 100 words
A switchboard (1) which comprises a plurality of bus bars (10, 10a, 10b) for the power source, a plurality of electrical equipments (9, 15, 16, 17) and guide rails (110, 120) carrying at least one of said electrical equipments (9) characterized by, further comprising a common bus bar casing (2) accommodating said plurality of bus bars (10, 10a, 10b) and a plurality of switchboard unit casings (3) accommodating said respective electrical equipments (9, 15, 16, 17), and characterized in that, said plurality of switchboard unit casings (3) are attached to said common bus bar casing (2) while permitting detachment therefrom.
Claim 2
Dependent Claim 192 words
A switchboard according to claim 1 further characterized in that, said plurality of bus bars (10, 10a, 10b) extend in horizontal direction and are disposed in vertical direction with a predetermined interval and at least one of said switchboard unit casings (11) accommodating a plurality of circuit breakers (9) and a plurality of load side conductors (51) to be connected to load side cables (61), first disconnecting switch units (31) connecting said plurality of bus bars (10, 10a, 10b) and said plurality of circuit breakers (9) and second disconnecting switch units (34) connecting said circuit breakers (9) and said load side conductors (51), the contact moving axes of said respective circuit breakers (9) are arranged to extend in horizontal direction and in the depth direction of the switchboard unit casing (11), which direction is perpendicular to the extending direction of said respective bus bars (10, 10a, 10b) and said plurality of circuit breakers (9) are disposed in vertical direction with a predetermined interval and further said plurality of load side conductors (51) extend in the direction perpendicular to the contact moving axes of said respective circuit breakers (9) and in vertical direction.
Claim 3
Dependent Claim 92 words
A switchboard according to claim 2 characterized in that, each of said bus bars (10, 10a, 10b) is constituted by a first bus bar (10a), second bus bar (10b) extending parallel to said first bus bar (10a) and spaced apart in the depth direction of the switchboard unit casing (11) and a plurality of connecting conductors (23) disposed between said first and second bus bars (10, 10a, 10b), and said first disconnecting switch units (31) are connected to the respective second bus bars (10b) at the positions between said connecting conductors (23).
Claim 4
Dependent Claim 18 words
A switchboard according to claim 2 characterized in that, said circuit breaker is a vacuum circuit breaker (9).
Claim 5
Dependent Claim 32 words
A switchboard according to claim 2 characterized in that, said plurality of load side conductors (51) are disposed in the depth direction of the switchboard unit casing (11) with a predetermined interval.
Claim 6
Dependent Claim 21 words
A switchboard according to claim 4 characterized in that, an insulator barrier (36) is disposed between said vacuum circuit breakers (9).
Claim 7
Dependent Claim 27 words
A switchboard according to claim 4 characterized in that, said second disconnecting switch units (34) are disposed at the respective sides of said vacuum circuit breakers (9).
Claim 8
Dependent Claim 98 words
A switchboard according to claim 1 characterized in that, said guide rail (110, 120) is constituted by a stationary rail (111) secured on an inner side face of one of said switchboard unit casing (11), a first moving rail (112) moving along said stationary rail (111), a supporting plate (115) having a swingable door (70) of said switchboard unit casing (11) secured to said first moving rail (112), a second moving rail (121) secured to said supporting plate (115), and a third moving rail (122) carrying said electrical equipment (9) and moving along said second moving rail (121).
Claim 9
Dependent Claim 48 words
A switchboard according to claim 8 further characterized in that, a first intermediate rail (113) is provided between said stationary rail (111) and said first moving rail (112), and a second intermediate rail (123) is provided between said second moving rail (121) and said third moving rail (122).

References Cited (Backward Citations)

BE497064A Cited
DE963079C Cited
US3193633A Cited
CH459328A Cited
DE3223934A1 Cited

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