JPS6013188Y2 - flexible conductor - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a flexible conductor used for a phase-apart busbar between a generator and a main transformer in a power plant.

Figures 1 to 3 show flexible conductors used in conventional phase separation busbars, etc. In the figures, reference numeral 1 denotes a flexible conductor consisting of a crimp terminal 11 and a flexible conductor piece 12 of braided wire. The crimp terminal 11 has a crimp part 21 for connecting the flexible conductor piece 12.
and a mounting plate 23 having a hole 22 for mounting to the phase-apart bus conductor, and the flexible conductor piece 12 is connected to the crimp terminal 11.
The crimp part 21 of the multi-layer (12at 12bt in the figure)
12c), its width direction is the crimp terminal 11.
It is inserted parallel to the mounting plate part and caulked.

3 is a power transport conductor that constitutes an electric circuit between the generator and the main transformer; 4 and 5 are bolts and nuts for attaching the flexible conductor 1 to the power transport conductor 3 through its mounting hole 22; .

Although the power transport conductor 3 is shown as a rectangle in this embodiment, the terminal to which this type of flexible conductor is attached generally has a polygonal shape.

Therefore, this flexible conductor is designed to prevent vibrations from being transmitted and received between equipment at the interface between the generator, main transformer, etc. and the phase-separated bus, and to take into consideration the uneven settlement of the foundation that supports the phase-separated bus. Properly provided on the separation bus bar.

As shown in FIG. 2, the number of conductors corresponding to the current carrying capacity is attached to each side between the opposing conductors 3 and 3 using bolts and nuts.

In the configuration as described above, each side 12a, 12b, 12c of the flexible conductor piece 12 is arranged along each side of the conductor 3, and when conducting electricity with a large current, the current Due to the skin action, the current is concentrated on the outer piece 12a of the several flexible conductor pieces, and the inner pieces 12b, 1
2c has the disadvantage that only too much current flows through it, which means that it constitutes a conductor connection that is unbalanced with respect to the cross-sectional area of the flexible conductor piece.

This idea was created in view of the above drawbacks, and by arranging the base piece of the flexible conductor piece at right angles to the mounting plate of the crimp terminal, the current flows evenly through the base piece. It is something.

An embodiment of this invention will be described below with reference to FIGS. 4 to 6.

That is, in the present invention, the multilayer flexible conductor pieces 12at 12b
When attaching the t 12c to the crimp terminal 11, it is inserted and caulked so that its width direction is perpendicular to the mounting plate portion of the crimp terminal 11.

In other words, the state in which the flexible conductor 1 is attached to the conductor 3 in this manner is as shown in FIG. On the other hand, they are arranged at right angles.

Note that the other parts are the same as the conventional one, so the explanation will be omitted.

As described above, according to this invention, each flexible conductor piece is attached in a line perpendicular to the mounting plate of the crimp terminal, so even if there is a skin effect of the current when carrying a large current, This has the effect that current can flow evenly through the base pieces 12a, 12b, and 12c of the flexible conductor piece 12.

[Brief explanation of drawings]

Figure 1 is a plan view and side view showing a conventional flexible conductor, Figure 2 is a diagram showing the conductor connection part of a phased bus using a conventional flexible conductor, and Figure 3 is the same as that shown in Figure 2. 4 is a plan view and a side view of a flexible conductor according to an embodiment of the present invention, and FIG. 5 is a conductor of a separated bus bar using a flexible conductor according to the present invention. A diagram showing the connection part, Figure 6 is VT=V in Figure 5.
It is a sectional view taken along the T line. In the figure, 1 is a flexible conductor, 11 is a crimp terminal, 12 is a flexible conductor piece, 21 is a crimp portion, 22 is a mounting hole, 23 is a mounting plate, and 3 is a conductor. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In a flexible conductor that is used to connect conductors of a phase-apart busbar and is constructed by connecting multilayer flexible conductor pieces in parallel between crimp terminals, the width direction of each flexible conductor piece is the same as that of the crimp terminal. A flexible conductor characterized by being installed in a direction perpendicular to the mounting plate.