CN209266347U - Integrated drop-type arrester fuse group - Google Patents

Abstract

The utility model relates to a kind of integrated drop-type arrester fuse groups, including drop-type arrester and fuse switch, drop-type arrester upper end has arrester upper static contact and upper static contact cover, lower end is lower moving contact, and wherein arrester upper static contact connects into galvanic circle by the fuse static contact on conducting wire and fuse switch；Upper static contact cover is fixed on fuse switch insulator by nut；Lower moving contact is installed in lower moving contact hook support by lower moving contact hook；Lower moving contact hook support and fuse mounting plate connect into an entirety.The utility model combined falling formula arrester fuse, it is mounted in transformer platform or line bar, only need a cross-arm, it only needs to introduce a piece-root grafting line from aerial cable, have many advantages, such as that material requested is few compared to conventional products, reduce the construction time, simplify form of construction work, occupied space is few, beautification becomes platform.

Description

Integrated drop-type arrester fuse group

Technical field

The utility model relates to a kind of arrester fuse, specially a kind of integrated drop-type arrester fuse group.

Background technique

Applied on transformer platform drop-type arrester and fuse switch be two independent products, be mounted on change On depressor platform or line bar.Drop-type arrester and fuse switch respectively need independent cross-arm to support product, are respectively required for Wiring is introduced from aerial cable, respectively constructed, engineering is cumbersome, and it is great in constructing amount, and also material utilization amount is more.

Existing Combined fuse is that arrester is combined in the insulator of fuse, although reducing construction volume, But as long as there is a damage, it is necessary to which route power-off, integral replacing, maintenance amount increase.

Utility model content

For drop-type arrester in Combined fuse in the prior art or fuse switch if there is a damage The deficiencies of then needing integral replacing to lead to the increase of maintenance amount, problem to be solved in the utility model, which is to provide one kind, can reduce material use Amount, the integrated drop-type arrester fuse group for simplifying form of construction work.

In order to solve the above technical problems, the technical solution adopted in the utility model is:

The utility model integration drop-type arrester fuse group, including drop-type arrester and fuse switch, Drop-type arrester upper end has arrester upper static contact and upper static contact cover, and lower end is lower moving contact, wherein quiet on arrester Contact connects into galvanic circle by the fuse static contact on conducting wire and fuse switch；Upper static contact cover is solid by nut Due on fuse switch insulator；Lower moving contact is installed in lower moving contact hook support by lower moving contact hook；Under Moving contact hook support and fuse mounting plate connect into an entirety.

The lower moving contact two sides have boss, and lower moving contact is hung on lower moving contact hook by two sides boss.

Lower moving contact hooking slits are upward.

The mounting plate of fuse is fixed on the insulator of fuse switch.

The utility model has the advantages that and advantage:

1. the utility model integration drop-type arrester fuse group, is mounted in transformer platform or line bar, it is only necessary to One cross-arm only needs to introduce a piece-root grafting line from aerial cable, when having few material requested, reduction construction compared to conventional products Between, simplify form of construction work, the advantages that occupied space is few, beautification becomes platform.

2. the utility model integration drop-type arrester fuse group, skilful by drop-type arrester and fuse switch Wonderful combines, and saves the insulator and mounting plate of drop-type arrester, makes it public one with fuse switch Insulator and mounting plate.

3. arrester and fuse group are combined into a product by the utility model, and while overhauling, can distinguish charged for replacement, grasp Facilitate, saves maintenance and operation cost.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model decline formula arrester structural schematic diagram；

Fig. 3 is drop-type arrester bottom end structural schematic diagram in the utility model；

Fig. 4 is lower moving contact hook support structural schematic diagram in the utility model；

Fig. 5 A is lower moving contact structural front view in the utility model；

Fig. 5 B is the side view of Fig. 5 A；

Fig. 5 C is the top view of Fig. 5 A；

Fig. 5 D is the partial sectional view of Fig. 5 A.

Wherein, 1 is drop-type arrester, and 101 be arrester upper static contact, and 102 be upper static contact cover, and 103 be lower dynamic touching Head hook, 104 be lower moving contact hook support, and 105 be lower moving contact, and 107 be boss, and 2 be fuse switch, and 201 be frame Empty end of incoming cables, 202 be nut, and 203 be fuse static contact, and 204 be insulator, and 3 be conducting wire.

Specific embodiment

The utility model is further elaborated with reference to the accompanying drawings of the specification.

As shown in Figure 1,3, a kind of integrated drop-type arrester fuse group of the utility model, including drop-type arrester 1 and fuse switch 2,1 upper end of drop-type arrester has arrester upper static contact 101, upper static contact cover 102, and lower end is Lower moving contact 105, wherein arrester upper static contact 101 passes through the fuse static contact 203 on conducting wire 3 and fuse switch 2 Connect into galvanic circle；Upper static contact cover 102 is fixed on 2 insulator 204 of fuse switch by nut；Lower moving contact 105 are installed in lower moving contact hook support 104 by lower moving contact hook 103；Lower moving contact hook support 104 and drop type The mounting plate of fuse 2 links into an integrated entity.

As shown in Fig. 2,5A~5D, 105 two sides of lower moving contact have boss 107, and boss 107 is hung on lower moving contact extension On hook 103 (as shown in Figure 4)；The lower moving contact links up with 103 opening upwards.

Also there is upper static contact cover 102 on drop-type arrester 1, fuse switch 2 is fixed on by nut 202 204 top of insulator.The mounting plate of fuse 2 is fixed on the insulator 204 of fuse switch 2.

The utility model combined falling formula arrester fuse is mounted on when in use in transformer platform or line bar, is only needed A cross-arm is wanted, the mounting plate of fuse switch 2 is installed on cross-arm by bolt, and aerial cable only needs to introduce a piece-root grafting Line has few material requested, reduction construction time compared to conventional products, simplifies form of construction work, and occupied space is few, beautification becomes platform etc. Advantage.

The course of work of the utility model is as follows:

When route operates normally, arrester and fuse as shown in Figure 1 are "on" position；The course of work of arrester It is, when abnormal break down occurs in arrester, to be acted using power frequency short circuit current by disconnector, keep disconnector ground terminal automatic Disengage, unit of an arrester, which turns over, to be fallen, out of service to prevent accident progress from expanding, and member easy to maintain find to carry out in time maintenance with not It is replaced in the case where power-off.

The course of work of fuse is, when short circuit current passes through fuse failure, generates electric arc, the vulcan fibre of cartridge fuse liner Pipe generates a large amount of gas because cartridge fuse upper end is shut under arcing, and gas is sprayed to lower end, blows out electric arc.Due to molten Silk fusing, the upper lower moving contact of cartridge fuse loses the fastening force of fuse, in cartridge fuse self gravity and upper and lower static contact spring leaf Under the action of, cartridge fuse falls rapidly, disconnects circuit, cuts off faulty section route or faulty equipment.

The utility model combined falling formula arrester fuse, cleverly by drop-type arrester and fuse switch It combines, saves the insulator and mounting plate of drop-type arrester, it is made to share an insulation with fuse switch Son and mounting plate, when maintenance, can distinguish charged for replacement, easy to operate, save maintenance and operation cost.

Claims (4)

1. a kind of integration drop-type arrester fuse group, including drop-type arrester and fuse switch, feature exist In: drop-type arrester upper end has arrester upper static contact and upper static contact cover, and lower end is lower moving contact, wherein on arrester Static contact connects into galvanic circle by the fuse static contact on conducting wire and fuse switch；Upper static contact cover passes through nut It is fixed on fuse switch insulator；Lower moving contact is installed in lower moving contact hook support by lower moving contact hook； Lower moving contact hook support and fuse mounting plate connect into an entirety.

2. integration drop-type arrester fuse group according to claim 1, it is characterised in that: the lower moving contact two Side has boss, and lower moving contact is hung on lower moving contact hook by two sides boss.

3. integration drop-type arrester fuse group according to claim 1, it is characterised in that: lower moving contact hook is opened Mouth is upwards.

4. integration drop-type arrester fuse group according to claim 1, it is characterised in that: the mounting plate of fuse It is fixed on the insulator of fuse switch.