JP2000208365A - Low-voltage phase advancing capacitor integrated with serial reactor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and highly efficiently assemble a plurality of low-voltage phase advancing capacitors and, at the same time to reduce the installed area of the capacitors, by locking the notched sections of a fixture by means of projecting sections on the side faces of the capacitors and three-dimensionally fixing a serial reactor on a frame, and then, connecting the capacitors and reactor to each other. SOLUTION: A plurality of low-voltage phase advancing capacitors 1 are arranged in a line on the floor surface of a key-shaped frame 3. A fixture 6 is fixed by bringing the lower surfaces of the notched sections of an L-shaped fixture 6 into contact with the upper surfaces of projecting sections on the side faces of the capacitors 1, and aligning the attaching holes of the fixture 6 with the side-face attaching holes of the frame 3. Then a serial reactor 2 is three-dimensionally erected on the frame 3 and fixed through upper attaching holes. The fixed capacitors 1 are connected in parallel with each other through a connecting conductor 5 and further connected to the reactor 2 through connecting conductors 5. In addition, a connecting conductor 5 which becomes an outside lead-out wire is led out from the reactor 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a low-voltage lead capacitor and a series reactor mainly housed in a cubicle board used for improving a power factor of a load in an AC circuit or the like.

[0002]

2. Description of the Related Art Conventionally, a cubicle board of this type houses a low-voltage advance capacitor, a series reactor, a transformer, a switch, and the like. As shown in FIG. It is configured. When a plurality of low-voltage phase-advancing capacitors are used, the low-voltage phase-advancing capacitors are individually fixed to each other with mounting feet as shown in FIG. 10 (mounting screws are not shown).

[0003]

However, the above-described configuration has disadvantages such as low work efficiency and a large installation area because the low-voltage phase-advancing capacitor must be fixed with individual mounting feet. In addition, customers have requested that the number of parts be reduced and the price be reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has an inexpensive series reactor having a good work efficiency and a reduced number of parts and a reduced installation area by a three-dimensional structure. It is intended to provide an integrated low-voltage lead capacitor.

That is, a plurality of low-voltage lead capacitors 1
Metal fittings 6, 7 having notches 6a, 7a abutting on the side surface R of the low-voltage phase-advancing capacitor 1 and handles 6b, 7b extending at both ends; Key-shaped pedestals 3 and 4 to which the handle portions 6b and 7b of the fixing metal are fixed are provided. The series reactor 2 is three-dimensionally fixed to the mount, and the low-voltage lead capacitor 1 and the series reactor 2 are connected.

[0006] Further, the fixing bracket is an L-shaped fixing bracket 6.
It is characterized by being.

[0007] The fixing bracket is a U-shaped fixing bracket 7.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the series reactor integrated low-voltage advance capacitor of the present invention has a low-voltage advance capacitor installed on a key-shaped pedestal, and an L-shaped or The notch of the U-shaped fixture is fixed by contacting the notch, the handle of the fixture is fixed to the side or floor of the key stand, a series reactor is installed on the upper part of the key stand, and the connection conductor is drawn out. It has a structure. This structure improves seismic resistance, reduces the installation area when storing in a cubicle board, and improves work efficiency.

[0009]

[Embodiment 1] FIG. 1 is a drawing of an embodiment of a series-reactor-integrated low-voltage lead capacitor according to the present invention.
(A) is a plan view, (b) is a front view, (c) is a right side view,
(D) is a connection diagram. 2A and 2B are drawings of an embodiment in which a plurality of low-voltage lead capacitors are fixed to a key-shaped base via L-shaped fixing brackets, wherein FIG. 2A is a partial cross-sectional plan view, FIG. 2B is a front view, and FIG. () Is an enlarged partial sectional view of a main part. 4A and 4B are drawings of an embodiment of an L-shaped fixing bracket having a cutout for fixing a low-voltage lead capacitor, wherein FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a side view, and FIG. Is a perspective view. FIG. 6 is a drawing of an embodiment of a key-shaped mount for fixing a low-voltage phase-advancing capacitor and a series reactor, (a) is a plan partial sectional view,
(B) is a front view, and (c) is a right side partial sectional view. 8A and 8B are drawings of an embodiment of a low-voltage phase-advancing capacitor, in which FIG. 8A is a plan view, FIG. 8B is a front view, FIG. 8C is a side view, FIG. 8D is a bottom view, and FIG. .

An L having a plurality of notches 6a shown in FIG.
The bracket 6 is formed by press-forming a steel plate or the like, and is provided with a mounting hole 6d in a handle portion 6b so that it can be fixed to the key-shaped pedestal 3, and is subjected to electrogalvanizing.
The shape of “a” matches the shape of the side R portion of the low-voltage lead capacitor 1. The key-shaped gantry 3 shown in FIG. 6 is formed of an equilateral angle steel and a steel plate and has a side mounting hole 3a for fixing the L-shaped fixing bracket 6, an upper mounting hole 3b for installing and fixing the serial reactor 2, and an external mounting hole 3d. And has been subjected to electrogalvanizing or the like. The low-voltage advance capacitor 1 shown in FIG. 8 is a capacitor with a security mechanism conforming to the N2 type of JIS C 4901, and has a notch 6 of an L-shaped fixture 6.
A protrusion 1a is provided on the side surface R of the low-voltage phase-advanced capacitor 1 so that the contact a can be fixed.

Next, the procedure for producing the series reactor integrated type low voltage advance capacitor will be described. A plurality of low-voltage lead capacitors 1 are mounted on the floor 3c of the key-shaped gantry 3 shown in FIG.
The lower surface 6c of the notch 6a of the L-shaped fixture 6 shown in FIG. 4 is mounted on the upper surface 1b of the protrusion 1a of the side surface R of the low-voltage lead capacitor 1 shown in FIG.
As shown in FIG.
The bolt 8, washer 9, spring washer 10, nut 11 are matched with the mounting hole 6 d of the L-shaped fixing bracket to a.
Stick with such as. Then, as shown in FIG. 1, the serial reactor 2 is fixed three-dimensionally on the upper part of the key-shaped base 3, and is fixed by bolts 8, washers 9, spring washers 10, nuts 11 and the like via the upper mounting holes 3 b.

A plurality of fixed low-voltage lead capacitors 1
Are connected in parallel by a connection conductor 5 such as a covered electric wire, the low-voltage phase-advancing capacitor and the series reactor 2 are connected by the connection conductor 5, and the connection conductor 5 serving as an external lead wire is drawn out of the series reactor.

According to the above configuration, the L-shaped fixture is fixed to the projection provided on the side surface R of the low-voltage lead capacitor, so that the low-voltage lead capacitor does not move back and forth, right and left, and up and down. Excellent seismic resistance, small number of parts, and reduced installation area because the series reactor and low-voltage lead capacitor are fixed in a three-dimensional structure.

[Embodiment 2] FIG. 3 is a drawing of another embodiment of the present invention in which a plurality of low-voltage phase-advancing capacitors 1 are fixed to a key-shaped base 4 via U-shaped fixtures 7. () Is a plan partial sectional view, and (b) is a front view. 5A and 5B are drawings of an embodiment of a U-shaped fixing bracket having a cutout for fixing a low-voltage lead capacitor, wherein FIG. 5A is a plan view, FIG.
(C) is a side view, and (d) is a perspective view. FIGS. 7A and 7B are drawings of an embodiment of a key-shaped gantry for fixing a low-voltage phase-advancing capacitor and a series reactor, wherein FIG. 7A is a partial plan view, FIG. 7B is a front view, and FIG. It is.

The U-shaped fixing bracket 7 having a plurality of cutouts 7a shown in FIG. 5 is formed in the same manner as in FIG. 1, and the key-shaped base 4 shown in FIG. 7 is also formed in the same manner as in FIG. 6 differs from FIG. 6 in that a floor mounting hole 4a for fixing the U-shaped fixture 7 is provided on the surface 4c.

Next, the procedure for producing a series reactor integrated low-voltage advance capacitor will be described. A plurality of low-voltage lead capacitors 1 are placed on the floor 4c of the key-shaped gantry 4 shown in FIG.
As shown in the figure, the upper surface 1b of the protruding portion 1a on the side surface R of the low-voltage phase-advanced capacitor 1 is installed vertically and horizontally and arranged vertically.
The lower surface 7c of the notch 7a of the U-shaped fixing bracket 7 abuts, and the mounting hole 7d of the U-shaped fixing bracket is aligned with the floor mounting hole 4a provided on the floor 4c of the key-shaped gantry 4, so that the bolt 8 and the washer 9 , Fixed with spring washer 10 and nut 11,
The series reactor 2 is fixed three-dimensionally on the upper part of the U-shaped gantry 4 and fixed with bolts 8, washers 9, spring washers 10, and nuts 11 through the upper mounting holes 4b. Draw out the leader line.

According to the above configuration, since the U-shaped fixing bracket is abutted on the protrusion provided on the side surface R of the low-voltage phase-advancing capacitor and fixed, the front-rear, left-right, up-and-down movement of the low-voltage phase-condensing capacitor is eliminated. It is excellent in earthquake resistance, has few parts, and the installation area can be reduced because the series reactor and the low-voltage lead capacitor are fixed in a three-dimensional structure. In addition, the cubicle board can be downsized by appropriately using the L-shaped mounting bracket and the U-shaped mounting bracket depending on the number and locations of the low-voltage lead capacitors.

[0018]

As is clear from the above embodiment, the series-reactor-integrated low-voltage lead capacitor of the present invention has a low-voltage lead capacitor installed on a key-shaped stand,
The notch of the L-shaped or U-shaped fixing bracket abuts on the protruding part of the part and is fixed. The handle of the fixing bracket is fixed to the side surface or the floor surface of the key-shaped gantry. Since it has a three-dimensional structure with installation and connection conductors drawn out, assembly work is easy, work efficiency is good, installation area can be reduced, it is excellent in earthquake resistance, the number of parts can be reduced, and parts can be reused. It is advantageous in that it can be manufactured inexpensively, and is of great industrial and practical value.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a drawing of one embodiment of a series reactor integrated low-voltage advance capacitor of the present invention, wherein (a) is a plan view,
(B) is a front view, (c) is a side view, and (d) is a connection diagram.

FIGS. 2A and 2B are drawings of one embodiment in which a plurality of low-voltage lead capacitors are fixed to a key-shaped stand of the present invention via an L-shaped fixture, FIG. 2A is a partial cross-sectional plan view, and FIG. Is a front view,
(C) is an enlarged partial sectional view of a main part.

FIG. 3 is a drawing of another embodiment in which a plurality of low-voltage advance capacitors are fixed to a key-shaped stand of the present invention via a U-shaped fixing bracket, (a) is a plan partial cross-sectional view, (b) is a front view.

FIG. 4 is a drawing of an embodiment of an L-shaped fixing bracket having a cutout according to the present invention, wherein (a) is a plan view, (b) is a front view, (c) is a side view, and (d). Is a perspective view.

FIGS. 5A and 5B are drawings of one embodiment of a U-shaped fixing bracket having a notch according to the present invention, wherein FIG. 5A is a plan view, FIG. 5B is a front view, FIG. 5C is a side view, and FIG. Is a perspective view.

FIG. 6 is a drawing of an embodiment of the key-shaped gantry of the present invention,
(A) is a plane partial sectional view, (b) is a front view, and (c) is a right side partial sectional view.

FIG. 7 is a drawing of an embodiment of the key-shaped gantry of the present invention,
(A) is a plane partial sectional view, (b) is a front view, and (c) is a right side partial sectional view.

FIG. 8 is a drawing of one embodiment of a low-voltage lead capacitor of the present invention, in which (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a bottom view, e) is a perspective view.

FIG. 9 is a front view in which a conventional series reactor, a low-voltage lead capacitor, and the like are arranged on a plane.

FIG. 10 is a drawing in which a plurality of conventional low-voltage phase-advancing capacitors are fixed with mounting feet, and FIG. 10 (a) is a plan view and FIG.
Is a front view, and (c) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low voltage advance capacitor 1a Projection part 1b Top surface 2 Series reactor 3 Key type mount 3a Side mounting hole 3b Upper mounting hole 3c Floor 3d External mounting hole 3e Side 4 Key type base 4a Floor mounting hole 4b Upper mounting hole 4c Floor surface 4d External mounting hole 5 Connection conductor 6 L-shaped fixing metal 6a Notch 6b Handle 6c Lower surface 6d Mounting hole 7 U-shaped fixing metal 7a Notch 7b Handle 7c Lower surface 7d Mounting hole 8 Bolt 9 Washer 10 Spring washer 12 Transformer 13 Switch 14 Mounting foot

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[Procedure amendment]

[Submission date] January 19, 1999 (1999.1.1)
9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (3)

[Claims] An integrated low-voltage capacitor comprising a plurality of low-voltage capacitors and a series reactor, wherein a notch portion a abuts on a side surface of the low-voltage capacitor.
7a and fixing brackets 6 and 7 having handle portions 6b and 7b extending at both ends, and key stands 3 and 4 to which the handle portions 6b and 7b of the fixing brackets are fixed.
a, 7a are the protrusions 1 on the side R of the low-voltage lead capacitor 1.
a series reactor 2 integrated with the series reactor 2, wherein the series reactor 2 is fixedly mounted on the base, and the low voltage phase capacitor 1 and the series reactor 2 are connected. 2. A low-voltage lead capacitor integrated with a series reactor, wherein the fixing device according to claim 1 is an L-shaped fixing device. 3. A low-voltage lead capacitor integrated with a series reactor, wherein the fixing device according to claim 1 is a U-shaped fixing device.