CN104392874A

CN104392874A - 35 KV fuse

Info

Publication number: CN104392874A
Application number: CN201410735566.9A
Authority: CN
Inventors: 安卫军; 易梅; 王创业
Original assignee: State Grid Corp of China SGCC; Bengbu Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Bengbu Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2014-12-08
Filing date: 2014-12-08
Publication date: 2015-03-04

Abstract

The invention relates to a 35KV fuse. The 35 KV fuse comprises a porcelain sleeve (5), a fuse pipe (7) which is installed inside the porcelain sleeve (5), and end caps (4) installed at two ends of the porcelain sleeve (5), a compressed spring (6) is arranged between the inner end surface of one end cap and a end surface of the fuse pipe, wherein the external cylindrical surface of one end of the porcelain sleeve (5) is matched and fixed with a hoop (1); and opposite bilateral sides of the hoop (1) are provided with clamps for fixing the end caps (4). By using the 35 KV fuse, each maintenance time is reduced from 120 minutes to less than 20 minutes under the same fault, thereby reducing the blackout time, saving the material cost of changing the porcelain sleeve because the terminals cannot be detached, reducing the economic loss, and ensuring the stable running of power grid.

Description

A kind of 35KV fuse

Technical field

The present invention relates to high-tension electricity technical field, particularly a kind of 35KV high-tension transformer fuse.

Background technology

RWXO-35/0.5-2 type transformer fuse forms primarily of porcelain bushing, melt pipe and end cap, melt pipe is located in porcelain bushing, melt pipe is closed by the two ends that end cap is screwed in porcelain bushing, is provided with spring between the inner face of end cap and the end face of melt pipe, because the melt pipe fusing rate in porcelain bushing is higher, often need to change melt pipe, in the process changed, find that the structure of existing fuse exists following shortcoming: because fuse is located at outdoor, end cap fixed screw is easy to corrosion, dismounting difficulty, waste time and energy, whole fuse must be removed from framework and change, the time changed once is approximately 120 minutes, also often can there is terminal in addition not tear open not get off and the situation that melt pipe cannot be changed, at this moment will change together with porcelain bushing, a porcelain bushing 300 circle left and right, cause waste of material.

Summary of the invention

There is not easily detachable problem for existing fuse terminal, the invention provides the quick detachable 35KV fuse being convenient to change melt pipe of a kind of terminal.

For reaching above-mentioned purpose, the present invention adopts following technical scheme.

A kind of 35KV fuse, comprise a porcelain bushing 5, and the melt pipe 7 be arranged in porcelain bushing 5, be assemblied in the end cap 4 at porcelain bushing 5 two ends, stage clip 6 is provided with between the inner face of one of them end cap and the end face of melt pipe, it is characterized in that, one end external cylindrical surface of described porcelain bushing 5 coordinates and is installed with anchor ear 1, the relative both sides of anchor ear 1 are provided with the jig for fixing end cap 4.

Further, described jig comprises the clasp bearing 1a and pressure ring bearing 1b that are arranged at the relative both sides of anchor ear 1 respectively, and hinged clasp 3 on clasp bearing 1a, hinged pressure ring 2 on pressure ring bearing 1b, described pressure ring 2 coordinates with clasp 3 grafting.

Further, described pressure ring 2 is for there being the right angle pressure ring at 90 ° of bending angles, and the bending section 2a of pressure ring 2 to be pressed on end cap 4 and to be plugged in clasp 3.

Beneficial effect: adopt the present invention, under same fault, be down within 20 minutes by each repair time by 120 minutes, reduces interruption duration, reducing economic loss, saving the Master Cost changing porcelain bushing because tearing to fall terminal open, ensures the stable operation of electrical network.

Accompanying drawing explanation

Fig. 1 is basic structure schematic diagram of the present invention;

Fig. 2 is 3D illustraton of model of the present invention;

Fig. 3 is partial sectional view of the present invention.

Embodiment

A kind of 35KV fuse provided by the invention, as Fig. 1, Fig. 2, shown in Fig. 3, comprise a porcelain bushing 5, and the melt pipe 7 be arranged in porcelain bushing 5, be assemblied in the end cap 4 at porcelain bushing 5 two ends, stage clip 6 is provided with between the inner face of one of them end cap and the end face of melt pipe, one end external cylindrical surface of described porcelain bushing 5 coordinates and is installed with anchor ear 1, the relative both sides of anchor ear 1 arrange clasp bearing 1a and pressure ring bearing 1b respectively, hinged clasp 3 on clasp bearing 1a, hinged pressure ring 2 on pressure ring bearing 1b, described pressure ring 2 is for there being the right angle pressure ring at 90 ° of bending angles, the bending section 2a of pressure ring 2 to be pressed on end cap 4 and to be plugged in clasp 3.

Operation principle is summarized as follows:

Anchor ear 1 is linked on porcelain bushing 5, and hinged clasp 3 thereon and pressure ring 2 coordinate and push down wiring end cover 4, and spring 6, by wiring end cover 4 jack-up, makes clasp 3 and pressure ring 2 be fixed, thus can not come off; When needing to open end cap replacing melt pipe, only need a compressing end cap downwards easily can open jig.

Claims

1. a 35KV fuse, comprise a porcelain bushing (5), and the melt pipe (7) be arranged in porcelain bushing (5), be assemblied in the end cap (4) at porcelain bushing (5) two ends, stage clip (6) is provided with between the inner face of one of them end cap and the end face of melt pipe, it is characterized in that, one end external cylindrical surface of described porcelain bushing (5) coordinates and is installed with anchor ear (1), the relative both sides of anchor ear (1) are provided with the jig for fixing end cap (4).

2. a kind of 35KV fuse according to claim 1, it is characterized in that, described jig comprises the clasp bearing (1a) and pressure ring bearing (1b) that are arranged at the relative both sides of anchor ear (1) respectively, the upper hinged clasp (3) of clasp bearing (1a), the upper hinged pressure ring (2) of pressure ring bearing (1b), described pressure ring (2) coordinates with clasp (3) grafting.

3. a kind of 35KV fuse according to claim 2, it is characterized in that, described pressure ring (2) is for there being the right angle pressure ring at 90 ° of bending angles, and the bending section (2a) of pressure ring (2) is pressed in end cap (4) and goes up and be plugged in clasp (3).