JPS60112223A - Transformer on post - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a transformer, and in particular, to a
This relates to a pole-mounted transformer that is used by being attached to a telephone pole that supports overhead wires for transmitting and distributing power to important houses.

In general, electrical equipment such as a Hume transformer required for power distribution is often attached to and supported on utility poles that support overhead wires for transporting power to consumers. The present invention particularly relates to transformers among electrical devices that are combined with utility poles.

[Prior art]

Conventionally, power was supplied to general demand water stations from the power company's distribution substation to a 4 kV high-voltage tower M/M, as shown in Figure 1.
The high-voltage overhead line is supported by an insulator attached to a utility pole, and power is supplied from this high-voltage overhead line through cut-out fuses 3, transformers 1, and other electrical equipment that are also supported by the utility poles. In order to protect against lightning surges, that is, to protect the insulators and electrical equipment, a lightning arrester 5 was also installed on the utility pole. It is supported by being attached to a utility pole B made of wood via a support 7 with bolts, etc., and the wiring between the overhead line and the equipment and between the equipment is conducted outside the utility pole. g is an overhead wire that brings σ low voltage to consumers.

As described above, installing external pole supports, electrical equipment, and arranging them between valley electrical equipment, overhead wires, etc. requires an extremely large amount of time and labor, and has the disadvantage of being expensive. Also, the wiring was exposed and looked unsightly.

[Summary of the invention]

This invention was made in view of the above-mentioned drawbacks of conventional pole-mounted transformers and electrical equipment connected thereto, and aims to provide a pole-mounted transformer that is easy to install on utility poles and has a good appearance. To provide a pole-mounted transformer in which the main body is integrally cast into a utility pole with a castable insulating material, together with the terminal fittings on the high voltage and low voltage sides and the connecting conductor with the main body, and the transformer is embedded in the utility pole. As a result, the installation and placement work on the utility pole can be completed during the production of the utility pole, and it is characterized by the fact that there is almost no work required at the site where the utility pole is installed, and the appearance of the installation is good.

[Embodiments of the invention]

The invention will now be described in detail with reference to the illustrated embodiments.

As shown in Figure 2, the municipal railcar for power distribution, green/, is connected to the terminal fitting l/ on the telephone pole, and the terminal fitting l/ is connected to the transformer/su through the cut-out fuse /-3. An example of an insulator that can be cast together with the connecting conductor 7.2 on the cylindrical side of the transformer is an epoxy-made utility pole 76 that is integrally molded during casting, and a portion of it is embedded in the utility pole. There is. In detail, a part of the terminal fitting l/, a connecting conductor /2 that connects the terminal fitting // and the supporting terminal fitting 17 that supports one end of the fuse 13, a support terminal fitting 77 body, and a fuse /3.
a support terminal fitting /7 that supports the other end; a connecting conductor that connects this support terminal fitting 17 and the high voltage side of the transformer /4';
2 are integrally cast and embedded in the utility pole.Along with these, a transformer/da that has coil insulation by casting insulation is used to transfer the voltage on the low voltage side of the transformer to the consumer. 2II!, part of the terminal fitting ig to connect the line g and the transformer tll are integrally cast on the utility pole/6 with a castable insulator along with the terminal fitting/to which connection conductor/q, and embedded. It's included.

'Additionally, supporting terminal fittings for mounting lightning arrester/S on utility poles for protection against lightning surges, 20, supporting terminal fittings-2
A grounding conductor (22) connected to the connecting conductor (1) and the supporting terminal fitting (20) and the connecting conductor (22) is integrally cast into the utility pole (6) along with the supporting terminal fitting (θ). ing.

A support terminal fitting integrally cast on the utility pole to support the cut-out fuse/3 and the lightning arrester 15/7. ．． 1
0, as shown in Figure 3, only the end surface is exposed on the surface of the utility pole/6, and the entirety is embedded within the utility pole, and the inner end is the enlarged part/6.
It has engagement holes 7b, 20b/7a, 20a. The fuse 13 and lightning arrester 15 have four insertion terminals /3a, /! ;a (Fig. 1), connecting terminal/,
? a, /ja has an enlarged part /ja at the tip as shown in Figure 3.
,? b, /A; It is a vertically split type having b, and is simply connected to the engagement hole /7a of the support terminal fitting /7,20, and the connecting terminal /3a, /! By simply inserting a, the fuse/3 and the lightning arrester is can be supported on the utility pole IA, and electrical connections can also be made.

〔Effect of the invention〕

According to the present invention, with the above-described configuration, during construction of utility poles and electrical equipment installed on utility poles, the transformer and the connection conductor between the equipment are embedded in the utility pole, and the electrical connection between the equipment is established. The construction work can be completed by simply inserting the connection terminals of the necessary equipment into the supporting terminal fittings. Therefore, the construction is simple and easy, and has the effect of shortening the working time, as well as having an aesthetic effect.

[Brief explanation of the drawing]

Fig. 1 is an outline drawing showing a conventional utility pole and other equipment on a pole-mounted transformer; Fig. 2 is an outline drawing showing a utility pole equipped with a pole-mounted transformer according to the present invention and equipment attached thereto; Fig. 3; FIG. 2 is a partial cross-sectional view showing one embodiment of a support terminal fitting and a connection terminal. /... High-voltage overhead wire, Co... Insulator, 3. /3...Cutout Hughes, 'i7. /lI-・i pressure vessel, 5,/
! ;... Lightning arrester, 4. /4...Telephone pole, 7...Support, g
・・Overhead line, // , 1g ・・Terminal fitting, /U, /9,2
/...-connection conductor, /Ja, 15a...connection terminal, /7,
20...Support terminal fitting 1.2...Grounding conductor. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] It is characterized by being integrally cast into the utility pole with a cast insulating material and embedded in the utility pole together with the connection conductor to the terminal fitting that connects the high voltage overhead line and the connection conductor to the terminal fitting that connects the low voltage line. Pole transformer.