JP3460520B2 - Capacitor equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capacitor facility. 2. Description of the Related Art In a power system, capacitor equipment is widely used for improving a power factor. This capacitor facility mainly includes a capacitor having one end connected to a power system, a series reactor connected to the other end of the capacitor, and a discharge coil connected in parallel to the capacitor. These are stored and sealed in separate tanks together with insulating oil, and are electrically connected via bushings derived from each tank. Each tank is usually connected mechanically. FIG. 3 shows a conventional example, wherein 1 is a capacitor, 2 is a series reactor, and 3 is a discharge coil. The capacitor 1, the series reactor 2, and the discharge coil 3 are housed in separate tanks 21, 22, and 23 together with insulating oil, and are sealed. The tank 23 in the illustrated example is integrally installed on the upper part of the tank 21. The tank 22 is configured to be installed at a position separate from the tank 21. [0004] Reference numeral 24 denotes a bushing for external drawing, to which an external power system is connected. In this bussin 24,
The capacitor 1 is connected in series via bushings 25 and 26 provided in the tank 1. The discharge coil 3 is connected between the bushings 25 and 26. Further, the bushing 26 is connected to a bushing 27 provided in the tank 23. The bushing 27 is connected via a conductor 28 and a bushing 29 provided in the tank 22.
Is connected to the series reactor 2 inside the tank 22 via the. Duct 3 to insulate conductor 28 from the outside
0 is prepared, and the conductor 28 passes through it. However, according to such a configuration, the tank 22 for the in-line reactor 2 is installed separately from the tank 21, so that not only the installation area as the condenser facility is widened, but also the duct 30, the bushing and the like. 29 is required. Further, when installing the tank 22, it is necessary to absorb errors in the installation dimensions.
It is necessary to intervene. In addition to installation on site, it is necessary to transport the tanks 21 and 22 separately to the site and assemble them on site, which not only increases the transportation cost but also complicates assembly work on site. SUMMARY OF THE INVENTION The present invention aims at reducing the installation area of a capacitor, a series reactor and a discharge coil constituting a capacitor facility, which are separately sealed together with insulating oil. At the same time, the object is to simplify the configuration and to reduce the transportation and assembly work to the site. SUMMARY OF THE INVENTION The present invention is directed to a first tank having a capacitor housed therein and having first and second bushings to which each end of the capacitor is connected. And the first is hermetically partitioned by a partition
And a second chamber fixed to the upper portion of the first tank, and a second chamber housed in the first chamber inside the second tank. A serial reactor connected to the bushing, and a discharge coil housed in a second chamber inside the second tank.
The first and second bushings are led out into the chamber, and one end of the discharge coil is connected to the external drawing bushing and the first bushing provided in the second chamber. The other end is connected to the bushing provided on the partition and the second bushing. By disposing the second tank above the first tank, it is not necessary to separately install the tank for storing the series reactor separately from the tank for the condenser as in the prior art. Therefore, the installation area is reduced as compared with the conventional configuration. By enclosing the series reactor and the discharge coil in each of the partitioned chambers inside the second tank, the number of bushings required for connecting the series reactor and the discharge coil is reduced, and the conventional type is used. No conductors are required, and therefore no ducts and bellows for conductors are required. FIG. 1 and FIG. 2 show an embodiment of the present invention.
It will be explained by. According to the present invention, the capacitor 1 is stored in the first tank 4 together with the insulating oil. Then, each end of the condenser 1 is connected to each of the bushings 5 and 6, and the condenser 1 is sealed.
Are tested according to standards. The tank 4 is provided with first and second bushings 5 and 6. Reference numeral 7 denotes a second tank, which is manufactured separately from the tank 4 in advance. The inside of the tank 7 is hermetically partitioned by a partition wall 8, whereby the first chamber 9 and the second chamber 10 are closed.
Are formed in an airtight manner. A bushing 11 is provided on the partition 8. The series reactor 2 is stored inside the first chamber 9 together with the insulating oil, and is connected to the bushing 11 and then sealed. Then, a test according to the standard is performed on the series reactor 2 in this sealed state. The tank 7 in which the series reactor 2 is housed in the chamber 9 as described above is fixedly installed on the upper part of the tank 4 by, for example, welding. FIG. 2 is an exploded view of the state before fixing as described above.
In the fixed state as described above, the bushings 5 and 6 are led out into the chamber 10. It is preferable to use a gasket or the like, for example, to seal the outlet portion. After the tank 7 is fixed above the tank 4, the discharge coil 3 is housed in the chamber 10. One end of the discharge coil 3 is connected to the bushing 5 and a bushing 12 for external drawing provided on the chamber 10 side of the tank 7, and the other end of the discharge coil 3 is connected to the bushing 6 and the bushing 11 of the partition 8. I do. Then, the chamber 10 is filled with insulating oil and sealed to complete a capacitor facility as shown in FIG. After that, a test according to the standard is finally performed. When the condenser equipment is constructed in this manner, the tank 7 is installed above the tank 4 and integrated, so that the tank for storing the series reactor is installed separately from the conventional tank for the condenser as in the prior art. Eliminates the need. Therefore, the installation area is reduced as compared with the conventional configuration. Also, it is not necessary to transport each tank separately for transportation, and the on-site assembly work is simplified. Each compartment 9 inside the tank 7
10, the series reactor 2 and the discharge coil 3 are provided.
The number of bushings required for connection with the bushing is smaller than that of the prior art, while bushings 27 and 29 are required in the conventional example, but only the bushing 11 is sufficient. The unnecessary conductor 28 is unnecessary, and thus the conductor duct 30 and the bellows 31 are also unnecessary. As described above, according to the present invention, when the capacitor, the series reactor, and the discharge coil which constitute the capacitor facility are housed in separate places, respectively, compared with the conventional structure, The installation area can be reduced, the configuration can be simplified, and furthermore, there is an effect that transportation to the site and assembling work on the site are reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a cross-sectional view together with a connection diagram. FIG. 2 is an exploded sectional view of the same. FIG. 3 shows a conventional example, and is a cross-sectional view together with a connection diagram. [Description of Signs] 1 Capacitor 2 Series reactor 3 Discharge coil 4 First tank 5 First bushing 6 Second bushing 7 Second tank 8 Partition wall 9 First chamber 10 Second chamber 11 Provided on the partition wall Bushing 12 bushing for external drawer

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01F 27/04 H01G 4/40

Claims (1)

(57) A first tank containing a capacitor and having first and second bushings to which each end of the capacitor is connected, A first chamber and a second chamber, each of which is internally sealed and partitioned by a partition wall, are formed, a second tank fixed to an upper portion of the first tank, and a second tank inside the second tank. A serial reactor connected to a bushing provided in the partition wall, and a discharge coil housed in a second chamber inside the second tank; Leading out the first and second bushings into the interior of the chamber, connecting one end of the discharge coil to an external drawing bushing provided in the second chamber and the first bushing, The other end of the discharge coil is provided on the partition Capacitor equipment formed by connecting the a bushing in said second bushing.