JPH062408Y2 - Closed switchboard - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a closed switchboard for a special high voltage or the like that houses a circuit breaker or the like.

[Conventional technology]

Conventionally, in a closed switchboard, the disconnection section bushings for each phase are arranged side by side on the rear surface of the housing that houses the circuit breaker,
Some extend upward or downward from these disconnection bushings to connect conductors in the board. The conductor may have an insulating coating or may be a bare conductor.

[Problems to be solved by the invention]

However, when a bare conductor is used, the interphase dimension must be made larger than when a coated conductor is used.

For this reason, conventionally, there has been a problem in that housings having different pitches of the disconnection bushings are used for the coated conductor and the bare conductor, which increases the number of types of housings.

An object of the present invention is to provide a closed switchboard which can connect either a covered conductor or a bare conductor and can obtain an appropriate inter-phase dimension of the conductor.

[Means for solving problems]

The closed switchboard according to the present invention is provided with a housing and three phases arranged in a line in the housing, each of which has a terminal projecting port at a side portion of a tip end thereof and the central terminal projecting port is arranged in the straight line. Attached to the distal end of the movable disconnecting section having disconnecting section bushings directed in a direction perpendicular to the direction, movable disconnecting sections arranged in these disconnecting section bushings, and terminals penetrating the terminal projecting port. And a terminal block in which the terminals of the disconnecting-section bushing in the center are linear, and the disconnecting-section bushings on both sides have a direction in which each terminal projecting port is perpendicular to the direction in which the disconnecting-section bushings are arranged. Can be attached to the housing in a first position facing toward the housing and a second position facing in a direction tilted at a predetermined angle away from the central disconnecting bushing. The terminal when the posture is straight,
In the second posture, the terminals are V-shaped.

[Action]

According to the structure of the present invention, when the conductor connected to the terminal is the covered conductor, the disconnection bushings on both sides are in the first posture and the terminal is linear, and when the conductor connected to the terminal is a bare conductor. Has the disconnection bushings on both sides in the second posture and the terminals are V-shaped, so that the mutual spacing of the conductors connected to the terminals is set to the second posture as compared with the case where the disconnection bushings on both sides are in the first posture. Since it can be increased when in the posture, the interphase dimension can be easily changed without changing the mounting position of the disconnecting part bushing on the housing.
The number of types of housing can be reduced.

Further, the number of parts is small, the reliability is high, the assembling is easy and the cost is low, and the accurate interphase dimension is determined for both the coated conductor and the bare conductor, and it is possible to carry a large current.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. This closed switchboard includes disconnection bushings 2, 3 for each phase, which are arranged side by side in two rows on the back surface of the housing 1.
Of these, the terminal blocks 16 having the R-phase and T-phase disconnection section bushings 2 and 3 and the terminals 4 on both sides are mounted so that the angle can be changed so that they can take two types of mounting postures in the rotational direction around the axis. It is a thing. The terminals 4 of the intermediate S-phase disconnection bushings 2 and 3 are vertically fixed upward or downward and fixed in angle. Reference numerals 5 and 6 are conductors connected to the terminals 4, and are provided so as to extend vertically upward and downward. That is, the conductors 5 and 6 extend perpendicularly to the direction in which the disconnection bushings 2 and 3 are arranged and the axial direction. Reference numerals 2a and 3a are terminal projecting openings of the disconnection bushings 2 and 3.

The housing 1 accommodates the circuit breaker 7 as shown in FIG. 2, and is assembled integrally with the closed switchboard body 8. The circuit breaker 7 has a breaking unit 9 and an operating unit 10, and is installed in the closed switchboard main body 8 by wheels 11 so as to be pulled out forward. As the circuit breaker 7, for example, a reduced type such as a gas circuit breaker is used. Reference numeral 12 denotes a movable disconnecting section provided on the circuit breaker 7, which is in a disconnecting state when the circuit breaker 7 is pulled out forward. FIG. 3 shows the internal structure of the disconnection bushing 2 having the terminal block 16 to which the variable angle terminal 4 is attached. Terminal block 1
6 is fixed to the movable disconnecting section 12 inside the disconnecting section bushing 2 by a set screw 15, and the movable disconnecting section 12 of the circuit breaker 7 (see FIG. 2) is electrically contacted with the tip section 16a of the terminal block 16. I am trying. The terminal 4 is fixed to the terminal block 16 with two setscrews 17, and the terminal protruding port 2 of the disconnection bushing 2
project from a. Connect the conductor 5 to the terminal 4 with the connecting screw 18.
Connect. The disconnecting portion bushing 2 has a housing 1 (see FIG. 2) so that the direction of the terminal projecting port 2a can be changed.
On the other hand, the angle is attached so that the angle can be changed around the axis of the disconnection bushing 2. The terminal 4 is, as shown in FIGS. 4 (A) and 4 (B),
A linear terminal 4 _1, is prepared and the terminal 4 ₂ glyphs want the bending angle α for example 135 ° is used instead put as follows in accordance with the rotation angle of the terminal block 16. The disconnecting section bushings 3 in the lower row are similar to those in the upper row.

According to the closed switchboard having this configuration, when the conductors 5 and 6 are covered conductors, they are connected as shown in FIG. 1 (A). In this case, mounting the linear terminal 4 ₁ of FIG. 4 (A) to the terminal block 16, the disconnector bushing 2 of the upper row and lower row, so that the terminal 4 is facing each vertical upper and lower terminal The orientation of the table 16 is determined. The disconnection bushing 2 is also attached to the housing 3 so that the terminal projecting port 2a faces vertically upward and downward. In this state, the inter-phase dimension A ′ of the conductors 5 and 6 matches the pitch A of the disconnection bushings 2 and 3.

When the conductors 5 and 6 are bare conductors, they are connected as shown in FIG. 1 (B). At this time, attached to the FIG. 4 (B) carbonochloridate shaped terminal 4 ₂ the terminal block 16 of the disconnector bushing 2 and 3 of the both outer sides, the slope of the proximal portion of the terminal 4 is 45 ° to the vertical plane The terminal block 16 is oriented so as to have the angle β. As a result, the tip end side portion of the terminal 4 faces the vertical vertical direction at a position laterally displaced from the rotation center of the terminal block 16. Therefore, the conductors 5 and 6 are connected to the terminal 4 while extending vertically upward and downward, but the inter-phase dimension B of the conductors 5 and 6 is determined by the disconnecting portion bushing 2.
Wider than pitch A of 3. The disconnection bushing 2 is attached to the housing 3 so that the conductor projecting port 2a has an inclination angle of 45 ° outside.

In this way, by changing the angle of the terminal block 16, the interphase dimension can be easily changed. Therefore, both the coated conductor and the bare conductor can be connected with accurate interphase dimensions. Therefore, the number of types of housing 3 can be reduced.

[Effect of device]

The closed switchboard of this invention has the disconnecting bushings on both sides in the first position when the conductors connected to the terminals are covered conductors and makes the terminals linear, and when the conductors connected to the terminals are bare conductors. By setting the disconnecting portion bushings on both sides in the second posture and by forming the terminals in a V shape, the conductors connected to the terminals are separated from each other by a second posture as compared with the first posture of the disconnecting portion bushings. Since it can be increased at the time of, the interphase dimension can be easily changed without changing the mounting position of the disconnecting part bushing to the housing,
The number of types of housing can be reduced.

Further, there are advantages that the number of parts is small, the reliability is high, the assembling is easy and the cost is low, the accurate inter-phase dimension is determined for both the coated conductor and the bare conductor, and a large current can be passed.

[Brief description of drawings]

1 (A) and 1 (B) are partial rear views showing a connection state of a covered conductor and a connection state of a bare conductor according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. A sectional view of the tip of the partial bushing and FIGS. 4 (A) and 4 (B) are respectively rear views of the mounted state of the respective terminals. 1 ... Housing, 2, 3 ... Disconnection section bushing, 2a, 3
a ... Terminal protruding port, 4,4 ₁ , 4 ₂ ... Terminal, 5,6 ... Conductor, 12 ... Movable disconnecting section, 16 ... Terminal block

Claims (1)

[Scope of utility model registration request] 1. A housing, and three phases mounted on the housing so as to be aligned in a straight line, each having a terminal projecting port on a side portion of a tip end thereof, and the central terminal projecting port in the straight line arraying direction. Attaching to the distal end of the movable disconnecting part having disconnecting part bushings directed in a right angle direction, movable disconnecting parts arranged in these disconnecting part bushings, and a terminal penetrating the terminal projecting port And a terminal block in which the terminals of the disconnecting section bushing in the center are linear, and the disconnecting section bushings on both sides have their respective terminal protrusions oriented in a direction perpendicular to the arranging direction of the disconnecting section bushings. When the housing is attachable to the housing in a first posture and in a second posture in which the first posture and the second posture are tilted at a predetermined angle away from the disconnector bushing in the center, and the first posture The serial terminals and linear, closed switchboard, characterized in that the said terminal rather the shape when the second posture.