JP3029159B2 - Split transformer installation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a split transformer installation apparatus.

[0002]

2. Description of the Related Art In recent years, transformers have been increased in size due to high voltage and large capacity. Therefore, it has been necessary to divide the transformer into a plurality of units and connect and assemble them on site due to restrictions on railway transportation.
This split type transformer has a configuration in which two split tanks are connected in parallel via a connection duct and connected to a bus as described in Japanese Patent No. 1417521. However, no consideration was given to a combined installation device of a divided tank and a connection duct. It should be noted that, for example, Japanese Patent No. 1493 relates to this type of split type transformer.
799 and JP-A-57-184209.

FIG. 6 shows a conventional example of a split type transformer. As shown in the figure, the conventional split-type transformer includes two transformers 1A and 1B juxtaposed to each other. Each of these transformers 1A and 1B is configured by storing the contents of a transformer composed of iron cores 3A and 3B and windings 4A and 4B in tanks 2A and 2B.
The connection duct 5, bushing pocket 6, and expansion joint 7 connect the tanks 2A and 2B of 1B. Lead wires (not shown) are drawn from the windings 4A and 4B of the transformers 1A and 1B, respectively, and are connected to the bushing 9 by connection leads 8A and 8B. Connection leads 8A, 8B
Is composed of multiple barriers, spacers, a shield for alleviating electric field, and a center conductor (all not shown) because of high voltage, and has a complicated structure. In these figures, 10 is a common embedding base, 11A and 11B are transport hinges, and 12 is a manhole. In addition, tank 2A,
The tank bottom stay provided at the bottom of 2B is not shown.

[0004]

When transporting a split-type transformer having such a connection structure, each transformer and connection leads, connection duct, bushing pocket,
The expansion joints must be separated and transported separately, for which purpose the connection ducts and the connection leads in the expansion joint must be disconnected. However, the connection leads are composed of multiple barriers, spacers, electric field mitigation shields, and center conductors because of the high voltage, so they must be separated, disassembled, and re-assembled on-site before transportation. It takes a long time, and the positioning and installation of the divided tanks takes a considerably long time, and there is a concern that the insulating material may have a long moisture absorption time at the site and reliability may be reduced.

The present invention has been made in view of the above points, and an object of the present invention is to provide an installation apparatus for a split type transformer capable of reducing moisture absorption of an insulator and improving reliability. .

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a combined docking means provided in a plurality of tanks, each of which has a level adjusting member having a light slit, and a light transmitting member arranged to face the light transmitting member through the level adjusting member. This is achieved by having a device and a receiver and a hydraulic jack connected between the transmitter and the receiver.

[0007]

Since the above means is provided, the level adjustment of the divided tank and the docking operation can be easily performed.

[0008]

Next, the present invention will be described in detail with reference to examples.

[Embodiment 1] FIGS. 1 to 4 show an embodiment of the present invention. The same parts as those in the related art are denoted by the same reference numerals, and the description thereof will be omitted. A plurality of tanks 2A each containing the windings 4A and 4B and having a tank bottom stay 13 and transport hinges 11A and 11B,
In the split-type transformer installation apparatus in which 2B is combined and docked with combination docking means, in the present embodiment, the combination docking means is provided with a plurality of tanks 2A, 2A and 2B.
B, and a level adjusting member 15 having an optical slit (hole) 14, a light transmitter 16 and a light receiving device 17 arranged to face each other through the level adjusting member 15, a light transmitter 16 and a light receiving member And a hydraulic jack 18 connected between the containers 17. By doing so, the level adjustment of the divided tanks 2A and 2B and the docking work can be facilitated, so that the entire installation time can be shortened as compared with the conventional case, and the moisture absorption of the insulator can be reduced. Thus, it is possible to obtain a split transformer installation apparatus which can improve reliability.

That is, the level adjusting member 15 is provided in each of the divided tanks 2A and 2B, and the transport hinge 11 is provided.
A, 11B provided in the hinge hole 19 of the predetermined transport hinge 11A, 11B. In this way, the light (laser) 20 emitted from the light transmitter (for example, LD or LED) 16 reaches the light receiver (for example, PD) 17 through the light slit 14 of the level adjuster 15 and the level (vertical, horizontal) ). Transmitter 1 when the level does not match
A hydraulic jack (a feed jack that moves vertically and horizontally) 18 connected to the light receiving device 6 and the light receiver 17 is controlled to dock when the level matches, and the combination is completed. After the combination, the manhole 12 of the bushing pocket 6
A connection lead (not shown) is inserted to perform internal connection.
By using the level adjusting member 15 having the optical slit 14 as a magnet (magnet), attachment and detachment to the hinge hole 19 can be easily performed.

As described above, according to this embodiment, the tank level is adjusted by adjusting the optical axis, and the tank position can be controlled by using this and the hydraulic jack. The docking can be done easily with high precision, and only the time required to connect the connecting leads etc. can be shortened.The entire installation period can be shortened and the moisture absorption time of insulators such as windings can be reduced. , Reliability can be improved.

[Embodiment 2] FIG. 5 shows another embodiment of the present invention. In this embodiment, the optical slit (groove) 14
a to a predetermined tank bottom stay 13 of each tank 2A, 2B.
a. The level is adjusted by an optical slit 14a provided in the tank bottom stay 13a. The optical slit 14a of the tank bottom stay 13a may be rectangular or circular. The optical slit 14a is provided in each tank 2A, 2B
At least two places. Transformer 1B (see FIG. 1)
A light transmitter is attached to the tank bottom stay 13a on the side, and the transformer 1
A light receiver is attached to the tank bottom stay 13a on the side A (see FIG. 1), and level adjustment and docking are performed by a hydraulic jack controlled in conjunction with the receiver. In this case, the same operation and effect as in the above case can be obtained.

[0013]

As described above, according to the present invention, a combination docking means is provided in each of a plurality of tanks and has a level adjusting member having a light slit, and a light transmitter which is opposed to the level adjusting member through the level adjusting member. And the receiver and a hydraulic jack connected between the transmitter and the receiver, so that the level adjustment of the divided tank and the combined docking work can be facilitated.
The entire installation time can be shortened as compared with the related art, and it is possible to obtain a split-type transformer installation apparatus that can reduce moisture absorption of an insulator and improve reliability.

[Brief description of the drawings]

FIG. 1 is a plan view and FIG. 1B is a side view showing an attached state of a combined docking means according to an embodiment of the split transformer installation apparatus of the present invention.

FIG. 2 is a partial front view showing the hydraulic jack attached to the transport hinge of the embodiment.

FIG. 3 is a perspective view showing a level adjusting member according to the embodiment.

FIG. 4 is an explanatory view showing the configuration of the installation device of the embodiment.

FIG. 5 is a partial front view showing a state in which an optical slit is provided in a tank bottom stay of another embodiment of the split transformer installation apparatus of the present invention.

6 (a) is a plan view and FIG. 6 (b) is a side view showing a split type transformer by a conventional split type transformer installation apparatus.

[Explanation of symbols]

1A, 1B ... transformer, 2, 2A, 2B ... tank, 4A,
4B: winding, 11, 11A, 11B: hinge for transportation,
13, 13a: tank bottom stay, 14, 14a: optical slit, 15: level adjustment, 16: light transmitter, 17: light receiver, 18: hydraulic jack.

Claims (5)

(57) [Claims] 1. A split transformer installation apparatus in which windings are respectively housed and a plurality of tanks each having a tank bottom stay and a transport hinge are combined and docked with combination docking means. Docking means provided in each of the plurality of tanks and having a light slit, a light transmitter and a light receiver which are arranged to face each other through the level light, and the light transmitter and the light receiver An installation device for a split-type transformer, comprising a hydraulic jack connected between the transformers. 2. The split transformer installation apparatus according to claim 1, wherein the level adjusting member is provided in a hole of a predetermined transport hinge portion of each of the tanks. 3. The split transformer installation apparatus according to claim 2, wherein said level adjusting staff is provided at at least two places in each of said tanks. 4. The split transformer installation apparatus according to claim 1, wherein said optical slit is provided in a predetermined tank bottom stay of each of said tanks. 5. The photo detector according to claim 1, wherein said photo detector is a PD.
Installation equipment for split type transformers.