JP2009141998A - Terminal adapter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal adaptor 3 by which equipment for power metering and monitoring can be attached easily to a distribution panel. <P>SOLUTION: This terminal adaptor 3 can be attached to a breaker arranged in the distribution panel, and it is composed of a fixing body 4 which is formed in taper form and is U-shaped in cross section, and a conductor which is to be fixed to the fixing section of the fixing body 4, and space is secured between cables 7 connected to the terminal 2, whereby even if it is an existing distribution panel, the attachment work of equipment for power metering and the monitoring becomes easy. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a terminal adapter that can be attached to a terminal portion of a breaker of a distribution board in which breakers are arranged in a cabinet and a device for measuring and monitoring electric power is connected to a load side terminal of the breaker. It is.

  FIG. 7 shows a rough configuration of the distribution board. Breakers 33 and 34 are arranged in the cabinet 32 to constitute a distribution board 31. Due to the recent increase in environmental activities and the like, measurement and monitoring within the distribution board 31 are increasing for the purpose of reducing the amount of electric power. Electric power is measured and monitored by attaching a clamp or split CT to the wire.

The distribution board 31 is connected between the breakers 33 and 34 by a conductor such as a conductive bar 36. An electric wire 35 is connected to the load side terminal 37 of the breaker 33 and wired to a load device. Since the electric wires 35 are often bundled in the cabinet 32 or supported by a pillar or the like, in order to attach a clamp or a split type CT, the electric wires 35 to be measured are removed from the bundle and measured. After taking out and attaching a clamp and split type CT, the electric wire 35 was returned.
JP 2002-10470 A

  However, when a device for measuring and monitoring power is attached by the above method, if the size of the electric wire is small, it can be pulled or pushed by hand, but when the size increases, It was difficult to move the wires, and it was difficult to pull or push the wires because they were housed in the cabinet, and the installation of equipment for power monitoring was a considerable amount of work.

  Therefore, the present invention has an object to provide a terminal adapter that can easily attach a device for measuring and monitoring electric power, and the structure of the adapter is a taper-shaped fixing part and has a substantially U-shaped cross section. It is characterized by comprising a fixed body and a conductor fixed to a fixed portion of the fixed body.

  Since the terminal adapter according to the present invention is composed of a fixed body having a fixed portion formed in a tapered shape and having a substantially U-shaped cross section, and a conductor fixed to the fixed portion of the fixed body, the terminal adapter is connected to each phase. The electric wires can be supported in steps, making it easier to install equipment for power measurement and monitoring. Further, by using the insulator upside down, it is possible to share parts for supporting the electric wires in different steps, and to reduce the number of parts. A board can be constructed at low cost because it can be used for one terminal and can be attached as required.

  A terminal adapter according to the present invention will be described with reference to the accompanying drawings of FIGS.

  FIG. 7 shows a rough configuration of the distribution board. In the distribution board 31, a main breaker 33 and a branch breaker 34 are arranged in a cabinet 32, and these breakers are connected by an electric wire 35, a conductive bar 36, and the like. An electric wire 35 wired to the load device is connected to the load side terminal 35 of the branch breaker 34.

  In recent years, with the increase of environmental activities, opportunities to measure and monitor for the purpose of reducing the amount of electric power are increasing. A device such as a clamp or a split-type CT for measuring and monitoring the electric energy may be attached to the existing distribution board 31. At this time, the device is attached to the electric wire 35 wired from the branch breaker 34 to the load device. However, the load-side terminal 37 of the branch breaker 34 may be arranged in parallel at each phase, and the electric wire 35 is taken out. It took a lot of work to move it.

  The present invention provides a terminal adapter 3 that can be individually attached to the load-side terminal 2 of each phase of the branch breaker 1. The terminal adapter 3 includes a fixed body 4 and a conductor 5. The fixed body 4 is an insulator having a substantially U-shaped cross section, and the fixed portion 6 is formed in a tapered shape. The fixing portion 6 is provided with a fixing hole 8 for fixing the electric wire 7. A conductor insertion hole 9 is provided on the terminal side of the branch breaker 1 of the fixed body 4.

The conductor 5 is formed by bending a terminal fixing portion 10 and a fixing body fixing portion 11, and a terminal connection hole 12 and a screw insertion hole 13 are formed in each of them. The bending angle of the conductor 5 is set so as to oppose the load side terminal 2 of the branch breaker 1 and the fixing portion 6 of the fixing body 4.

  The operation of attaching the terminal adapter 3 will be described with reference to FIGS. The load side terminals 2 of the branch breaker 1 are arranged in parallel at the same height in each phase. The electric wire 7 is directly attached to the terminal 2a of the first phase. An electric wire 7 is connected to the terminals 2b and 2c of the second phase and the third phase via the terminal adapter 3. The fixing part 6 of the terminal adapter 3 is attached to the terminal 2b of the second phase so that the terminal side is higher. The conductor 5 is opposed to the fixing portion 6 of the terminal adapter 3, inserted into the conductor insertion hole 9, and connected to the terminal 2 b of the branch breaker 1 with the terminal screw 13. The conductor 5 is also fixed by a fixing screw at the fixing portion. The terminal adapter 3 attached to the second phase terminal 2b is turned upside down on the third phase terminal 2c so that the fixed portion 6 of the terminal adapter 3 is lowered on the terminal side. The conductor 5 is made to face the fixing portion 6 of the terminal adapter 3, inserted into the conductor insertion hole 9, and connected to the terminal 2 c of the branch breaker 1 with the terminal screw 14. The conductor 5 is also fixed to the fixing portion 6 by a fixing screw 15. As described above, the electric wire 7 is connected to the branch breaker 1 using the terminal adapter 3, the heights of the adjacent electric wires 7 are stepped, and the space between the electric wires 7 is widened. When a device such as a clamp or split CT is attached to an existing distribution board, the space between the electric wires 7 can be secured widely, so that the attachment work is facilitated.

  Which phase terminal 2 is attached with terminal adapter 3 or in which direction terminal adapter 3 is attached is not limited to the one shown in the drawing, and wires are connected to adjacent terminals in a stepwise manner. As long as there is enough space,

  The fixed body 4 can be attached to the terminal 2 of the branch breaker 1 even if it is turned upside down. When it is turned upside down, the inclination direction of the fixed portion 6 is reversed. That is, it is possible to make the two inclination angles, that is, lowering toward the front and lowering toward the depth, with the same component.

  Since the fixing portion 6 of the terminal adapter 3 is made of an insulator, the conductor 5 fixed to the fixing portion 6 is covered with an insulating material. Even when the terminal adapters 3 are mounted adjacent to each other, the fixing portion 6 is sufficient. The insulation distance can be maintained.

  When the electric wire connected to the terminal 2 of the breaker 1 is held at a high position, the electric wire holder 16 is attached and the electric wire is held on the electric wire holder 16.

  The terminal adapter 3 is for one terminal and is used alone for the terminal 2 of the breaker 1. The terminal adapter 3 can be attached in a space-saving manner.

It is a front view which shows the connection of the electric wire using a terminal adapter. FIG. 3 is a side view of A-A ′ in FIG. 2. FIG. 3 is a B-B ′ side view in FIG. 2. It is the side view seen from the 3rd phase side in FIG. It is a perspective view which shows a terminal adapter. It is a perspective view which shows a terminal adapter. It is explanatory drawing which shows the structure of a distribution board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Branch breaker 2 Terminal 2a 1st phase terminal 2b 2nd phase terminal 2c 3rd phase terminal 3 Terminal adapter 4 Fixed body 5 Conductor 6 Fixed part 7 Electric wire 8 Fixed hole 9 Conductor insertion hole 10 Terminal fixed part 11 Fixed body Fixing part 12 Screw insertion hole 13 Terminal screw 14 Fixing screw 15 Electric wire holder

Claims (1)

  A terminal adapter that can be attached to a terminal portion of the breaker of a distribution board, in which a breaker is arranged in a cabinet, and a device for measuring and monitoring electric power is connected to a load side terminal of the breaker, The adapter is composed of a fixed body having a taper-shaped fixed portion and a substantially U-shaped cross section, and a conductor fixed to the fixed portion of the fixed body.

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