CN213936935U

CN213936935U - Switch cabinet for testing cable

Info

Publication number: CN213936935U
Application number: CN202022339929.0U
Authority: CN
Inventors: 唐梅生; 莫绍肆
Original assignee: Guangxi Guanding Electric Co ltd
Current assignee: Guangxi Guanding Electric Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-08-10
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to a high-voltage electrical equipment makes technical field, discloses a cubical switchboard for test cable, including a cabinet body, its characterized in that: the test cabinet further comprises an air box fixed in the cabinet body, an operating mechanism and a middle door mechanism, wherein the operating mechanism and the middle door mechanism are arranged outside the air box; the middle door mechanism is used for being pulled out during testing, intervening detection equipment, enabling the detection equipment to be connected with the test sleeve for testing, and after the testing is finished, the middle door mechanism is tightly connected with the test sleeve; the front end of the test sleeve is connected with the middle door mechanism, and the wire inlet sleeve is connected with a wire inlet cable; the disconnection or the closure of three station switches are in separating brake or the position of closing through operating device and realize, the beneficial effects of the utility model are that the utility model discloses an whether intact of high tension cable just can be detected out in the cubical switchboard does not need other check out test set.

Description

Switch cabinet for testing cable

Technical Field

The utility model relates to a high-voltage electrical equipment makes technical field, specifically is a cubical switchboard for test cable.

Background

At present, in a switch cabinet in a power distribution system, after an incoming and outgoing cable is installed in the prior art, the installed cable needs to be tested again, and special test cable equipment needs to be transported from other places during testing; if the distribution equipment fails in the operation process, the high-voltage cable needs to be manufactured again, and equipment for testing the cable needs to be prepared again, so that hot-line work is inconvenient, and the operation safety and reliability of the distribution transformer are poor; meanwhile, the operation, maintenance and management are inconvenient, and the difficulty and complexity of the operation and maintenance work are high. In addition, in some lagging areas, after the cable is installed, the cable is not checked and tested any more due to condition limitation, the safety risk is large, after the cable is exposed, the problems of corrosion, aging, easy damage by external force and the like exist, the faults and potential safety hazards of the exposed electrified conductor are many, and the safety of the property and the life of people is seriously threatened.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, solve the high tension cable check-up of high tension switchgear among the current distribution network system and test various short slabs, the inconvenient shortcoming of installation operation maintenance, the utility model provides a cubical switchboard for testing cable adopts the structural style of integration, combination formula, can detect out whether intact of high tension cable the utility model discloses a just can carry out the check-up in the cubical switchboard.

In order to achieve the above object, the utility model provides a following technical scheme:

a switch cabinet for testing cables comprises a cabinet body, an air box fixed in the cabinet body, an operating mechanism and a middle door mechanism, wherein the operating mechanism and the middle door mechanism are arranged outside the air box; the middle door mechanism is used for being pulled out during testing, intervening detection equipment, enabling the detection equipment to be connected with the test sleeve for testing, and after the testing is finished, the middle door mechanism is tightly connected with the test sleeve; the front end of the test sleeve is connected with the middle door mechanism, and the wire inlet sleeve is connected with a wire inlet cable; the three-position switch is switched on or off by the operating mechanism at the opening or closing position; the test sleeve and the incoming line sleeve are connected in an equipotential mode, the bus is connected with the test sleeve and the incoming line sleeve through the three-position switch respectively, and disconnection or connection of the test sleeve and the incoming line sleeve and the bus is achieved through the three-position switch.

Furthermore, the front end of the wire inlet sleeve is connected with a wire inlet cable, and the rear end of the wire inlet sleeve is respectively connected with the test sleeve and the three-station switch through copper bars; the test sleeve is arranged above the wire inlet sleeve, the rear end of the test sleeve is connected with the wire inlet sleeve and the three-station switch through copper bars respectively, the test sleeve and the wire inlet sleeve are connected through the copper bars, and the voltage equipotential of the two sets of sleeves can be guaranteed.

Furthermore, the middle door mechanism comprises a middle door for closing the middle door mechanism, guide slide rails arranged on two sides of the middle door mechanism and a guide slide plate in sliding connection with the guide slide rails, a groove is formed in the rear end of the guide slide plate, and a guide fixing rod is fixedly arranged in the middle section of the guide slide plate; the middle door mechanism further comprises an insulating cap, the rear end of the insulating cap is arranged in the groove of the guide sliding plate, and the front end of the insulating cap is fixed on the guide sliding plate through a guide fixing rod. The insulating cap has three, and its rear end card respectively is in the recess that corresponds, and the rear end is fixed on the direction slide through the direction dead lever, like this, through the guide effect of direction slide rail, toward the internal insulating cap that impels of cabinet for insulating cap and test sleeve mutually support the butt joint.

Further, the air box is arranged at the rear part of the cabinet body.

Furthermore, the inside of the gas box is sealed with insulating gas, so that the high-voltage part is arranged in the gas box and is completely isolated from the outside.

Furthermore, the test sleeve and the wire inlet sleeve are both made of epoxy resin materials through pouring and are placed in insulating gas inside the gas box, and the insulating mode is reinforced for the second time, so that a good sealing effect can be achieved.

Further, the insulating gas is SF6 gas or nitrogen gas.

Furthermore, the operating mechanism is a spring type operating mechanism or a permanent magnet type operating mechanism, the operating mechanism and the three-position switch are products in the prior art, and the connecting transmission mode of the operating mechanism and the three-position switch is also the prior art.

Furthermore, the two sleeves have different structures and different use modes, the test sleeve is a live direct plug-in sleeve, so that the cable test is facilitated, and the plug-in of 630A can be achieved; the inlet wire sleeve is a fixed sleeve and can be used for power transmission only by fastening.

Furthermore, the three-station switch can realize the opening or closing of the incoming cable and the outgoing cable and can also be grounded, and the three stations are designed on one switch to realize modularization.

The test sleeve and the wire inlet sleeve are connected together in the air box through a copper bar for wire outlet connection, and the disconnection or the connection of the test sleeve and the wire inlet sleeve and a bus is realized through a three-position switch, and the disconnection or the connection of the three-position switch is determined by an operating mechanism arranged outside the air box at a switch-off position or a switch-on position; therefore, the three-position switch is opened or closed through the transmission action of the operating mechanism, and the test sleeve and the incoming line sleeve are further opened or closed with the bus.

Compared with the prior art, the utility model provides a cubical switchboard for test cable possesses following beneficial effect:

(1) the safety problem of the high-voltage cable of the power distribution network is realized by adopting an integrated and combined structural form, and the personal safety and the operation safety of equipment are fully guaranteed; a special test sleeve, namely a high-voltage test sleeve, is reserved in the switch cabinet and is independent from the inlet and outlet high-voltage sleeve, so that the normal operation of the cabinet is not influenced; when the cable needs to be tested, the operating mechanism is driven to the brake separating position, and the middle door mechanism is pulled out, so that the cable test can be carried out; no additional cable detection equipment is needed, and the cost is low in maintenance aspect; the device has the advantages of small volume, simple structure, convenient installation, more technical and price advantages than the equipment required by the prior art, simple maintenance and low requirement on operators.

(2) The two groups of sleeves are poured by epoxy resin, so that the insulating property is good, and the air tightness is high; the gas tank has a simple internal structure, is processed and produced by adopting high-tech materials, has a simple installation process of each part, has low requirements on field processes, and is easy to produce.

Drawings

Fig. 1 is a left side view structure diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic view of the front view structure of FIG. 1;

fig. 3 is a schematic top view of the middle door mechanism 2 in fig. 2.

The reference numerals in the figures have the meaning: 1. gas tank, 2, well door mechanism, 3, test sleeve pipe, 4, inlet wire sleeve pipe, 5, insulating cap, 6, direction dead lever, 7, well door, 8, direction slide, 9, direction slide rail, 10, the cabinet body, 11, copper bar, 12, operating device, 13, three-station switch, 14, incoming cable, 15, generating line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 (the front and back in the present invention are the left side in fig. 1 is the front, the right side is the back), the switch cabinet of the present invention comprises a cabinet body 10, an air box 1 fixed in the cabinet body 10, an operating mechanism 12 and a middle door mechanism 2 arranged outside the air box 1, a test sleeve 3, a wire-feeding sleeve 4, a three-position switch 13 and a bus 15 are arranged in the air box 1; the middle door mechanism 2 is used for being drawn out during testing, intervening detection equipment, enabling the detection equipment to be connected with the test sleeve 3 for testing, and after testing is finished, the middle door mechanism 2 is fixedly connected with the test sleeve 3; the front end of the test sleeve 3 is connected with the middle door mechanism 2, and the wire inlet sleeve 4 is connected with the wire inlet cable 14; the three-position switch 13 is switched on or off by an operating mechanism 12 arranged outside the air box 1 at a switching-off or switching-on position; the test sleeve 3 and the incoming line sleeve 4 are connected in an equipotential mode, the bus 15 is respectively connected with the test sleeve 3 and the incoming line sleeve 4 through the three-position switch 13, and disconnection or connection of the test sleeve 3 and the incoming line sleeve 4 with the bus 15 is achieved through the three-position switch 13.

In a specific implementation manner of this embodiment, the front end of the incoming line casing 4 is connected to the incoming line cable 14, and the rear end is connected to the test casing 3 and the three-position switch 13 through the copper bar 11; the test sleeve 3 is arranged above the wire inlet sleeve 4, the rear end of the test sleeve is respectively connected with the wire inlet sleeve 4 and the three-position switch 13 through the copper bar 11, the test sleeve 3 and the wire inlet sleeve 4 are connected through the copper bar 11, and the voltage equipotential of the two sets of sleeves can be guaranteed.

In a specific implementation manner of this embodiment, the middle door mechanism 2 includes a middle door 7 for closing the middle door mechanism, guide slide rails 9 disposed on both sides, and a guide slide plate 8 slidably connected to the guide slide rails 9, a groove is disposed at a rear end of the guide slide plate 8, and a guide fixing rod 6 is fixedly disposed at a middle section of the guide slide plate 8; the middle door mechanism 2 further comprises an insulating cap 5, the rear end of the insulating cap 5 is arranged in a groove of the guide sliding plate 8, and the front end of the insulating cap is fixed on the guide sliding plate 8 through a guide fixing rod 6. The insulating cap 5 has three, and its rear end card respectively is in the recess that corresponds, and the rear end passes through direction dead lever 6 to be fixed on direction slide 8, like this, through the guide effect of direction slide rail 9, impels insulating cap 5 toward the cabinet body 10 internal for insulating cap 5 and test sleeve 4 mutually support the butt joint.

In one embodiment of the present embodiment, the air box 1 is disposed at the rear of the cabinet 10.

In a specific embodiment of this embodiment, the gas tank 1 is sealed with an insulating gas for the purpose of placing a high voltage inside the gas tank 1, completely isolated from the outside.

In one embodiment of this embodiment, the insulating gas is SF6 gas or nitrogen gas.

In a specific embodiment of this embodiment, the operating mechanism 12 is a spring-type operating mechanism or a permanent magnet-type operating mechanism, the operating mechanism 12 and the three-position switch 13 are prior art products, and the connection transmission manner thereof is also prior art.

In a specific implementation manner of this embodiment, the two sleeves have different structures and different usage manners, and the testing sleeve 3 is a live-line directly pluggable sleeve, which facilitates cable testing and can achieve 630A plugging; the inlet bushing 4 is a fixed bushing and must be fastened to transmit power.

Example 2

For the utility model discloses sealed effect in the gas tank 1 is better, and the difference of this embodiment and embodiment 1 lies in:

as shown in fig. 1, the utility model discloses a test sleeve 3 and inlet wire sleeve 4 all obtain for the epoxy resin material pouring in place in the insulating gas of gas tank 1 inside, and insulating mode secondary is strengthened, can play very good sealed effect.

In a specific embodiment of this embodiment, the three-position switch 13 can realize opening or closing of the incoming and outgoing cables, and can also be grounded, and three positions are designed on one switch to realize modularization.

The utility model discloses a theory of operation: the test sleeve 3 and the wire inlet sleeve 4 are connected together through a copper bar 11 for wire outlet connection in the air box 1, because the disconnection or the connection of the test sleeve 3 and the wire inlet sleeve 4 with the bus 15 is realized through a three-position switch 13, and the disconnection or the connection of the three-position switch 13 is determined by an operating mechanism 12 arranged outside the air box 1 at the opening or closing position; therefore, the three-position switch 13 is opened or closed through the transmission action of the operating mechanism 12, and the test sleeve 3 and the incoming sleeve 4 are further opened or closed from the bus 15.

The purpose of the utility model is to test three incoming cables 14; the high-voltage test sleeve 3 is mutually connected with the high-voltage wire inlet sleeve 4 through a wire outlet connecting copper bar 11, namely 3 copper bars, 3 high-voltage test sleeves, 3

wire inlet sleeves

4 and 1 three-position switch, wherein the copper bars are L-shaped structures, and 3 binding posts are arranged on 1 copper bar and are respectively connected with one corresponding binding post of 1 high-

voltage test sleeve

3, 1 wire inlet sleeve 4 and one binding post of the three-position switch, so that the voltage equipotential of the two groups of sleeves is ensured;

the front end of the high-voltage test sleeve 3 is provided with a middle door mechanism 2 arranged in the cabinet body 10, the middle door mechanism 2 is arranged in the cabinet body 10 in the running state, and a high-voltage insulating cap 5 of the middle door mechanism 2 is mutually fastened and matched with the high-voltage test sleeve 3 in the running state, so that the high-voltage test sleeve 3 is prevented from discharging outwards; when the incoming cable 14 needs to be tested, the middle door mechanism 2 is detached, detection equipment is involved, and meanwhile, the rotating operation mechanism 12 is in a brake separating position, so that detection can be carried out; after the test, the middle door mechanism 2 is installed and fastened back into the cabinet body 10.

The utility model adopts an integrated and combined structure, realizes the safety problem of the high-voltage cable of the distribution network, and fully ensures the personal safety and the operation safety of the equipment; the switch cabinet of the utility model reserves a special test sleeve, namely a high-voltage test sleeve, which is independent from the inlet and outlet high-voltage sleeves, and does not influence the normal operation of the cabinet; when the cable needs to be tested, the operating mechanism is driven to the brake separating position, and the middle door mechanism is pulled out, so that the cable test can be carried out; no additional cable detection equipment is needed, and the cost is low in maintenance aspect; the device has the advantages of small volume, simple structure, convenient installation, more technical and price advantages than the equipment required by the prior art, simple maintenance and low requirement on operators.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cubical switchboard for test cable, includes a cabinet body, its characterized in that: the test cabinet further comprises an air box fixed in the cabinet body, an operating mechanism and a middle door mechanism, wherein the operating mechanism and the middle door mechanism are arranged outside the air box; the middle door mechanism is used for being pulled out during testing, intervening detection equipment, enabling the detection equipment to be connected with the test sleeve for testing, and after the testing is finished, the middle door mechanism is tightly connected with the test sleeve; the front end of the test sleeve is connected with the middle door mechanism, and the wire inlet sleeve is connected with a wire inlet cable; the three-position switch is switched off or switched on by an operating mechanism, the test sleeve and the incoming line sleeve are connected in an equipotential manner, and the bus is respectively connected with the test sleeve and the incoming line sleeve through the three-position switch.

2. A switchgear for testing cables, according to claim 1, characterized in that: the front end of the wire inlet sleeve is connected with a wire inlet cable, and the rear end of the wire inlet sleeve is respectively connected with the test sleeve and the three-station switch through copper bars; the test sleeve is arranged above the wire inlet sleeve, and the rear end of the test sleeve is connected with the wire inlet sleeve and the three-position switch through copper bars respectively.

3. A switchgear for testing cables, according to claim 1, characterized in that: the middle door mechanism comprises a middle door for closing the middle door mechanism, guide slide rails arranged on two sides of the middle door mechanism and a guide slide plate in sliding connection with the guide slide rails, a groove is formed in the rear end of the guide slide plate, and a guide fixing rod is fixedly arranged in the middle section of the guide slide plate; the middle door mechanism further comprises an insulating cap, the rear end of the insulating cap is arranged in the groove of the guide sliding plate, and the front end of the insulating cap is fixed on the guide sliding plate through a guide fixing rod.

4. A switchgear for testing cables, according to claim 1, characterized in that: the air box is arranged at the rear part of the cabinet body.

5. A switchgear for testing cables, according to claim 1, characterized in that: and insulating gas is sealed in the gas box.

6. A switchgear for testing cables, according to claim 5, characterized in that: the insulating gas is SF6 gas or nitrogen.

7. A switchgear for testing cables, according to claim 1, characterized in that: the test sleeve and the wire inlet sleeve are both obtained by pouring epoxy resin materials.

8. A switchgear for testing cables, according to claim 1, characterized in that: the operating mechanism is a spring type operating mechanism or a permanent magnet type operating mechanism.

9. A switchgear for testing cables, according to claim 1, characterized in that: the test sleeve is a direct plug-in sleeve capable of being electrified.

10. A switchgear for testing cables, according to claim 1, characterized in that: the wire inlet sleeve is a fixed sleeve.