A metering junction box with short-circuit prompt function and short-circuit operation method thereof

Abstract

The present invention discloses a metering junction box with a short-circuit prompt function and a short-circuit operation method thereof, belonging to the technical field of electric power metering, comprising a junction box body, the junction box body comprising a box body and a box cover, a plurality of terminal posts distributed in the box body, gaskets respectively arranged in the terminal posts, tracks arranged on the gaskets, conductive sliders arranged on the tracks, two conductive sliders, the two conductive sliders move relative to each other on the tracks, a telescopic component is connected to the outer side of one of the conductive sliders, a limiting component is arranged on the outer side of the gasket, a slide groove is arranged in the conductive slider, a fixing bolt is installed in the middle of the slide groove, and a warning mark is also arranged in the slide groove. The present invention provides an obvious short-circuit prompt function for the short-circuit operation on the secondary side of the current transformer, and the risk of open circuit caused by the loosening of the short-circuit gasket and poor contact due to the vibration of the box body can be discovered in time during the operation, thereby solving the problems existing in the prior art.

Description

Technical Field

[0001] The invention relates to a metering junction box with a short-circuit prompting function and a short-circuit operating method thereof, belonging to the technical field of electric power metering. Background Art

[0002] As an important component of the secondary circuit connecting the current transformer and the voltage transformer, the electric energy metering junction box is mainly composed of a box body and a cover body, and is divided into current terminals and voltage terminals inside. In the process of replacing the metering terminal, the current terminals realize the short-circuit function of the secondary side of the current transformer by means of the horizontal gasket, and the voltage terminals realize the open-circuit operation of the secondary side of the voltage transformer by disconnecting the vertical gasket. However, in the actual working process, the vertical gasket of the voltage wiring will slide down due to gravity after the wiring nut is loosened, forming an obvious disconnection point, which is more reliable. The horizontal gasket under the current terminal has no obvious prompt mark after being tightened after being turned. In the process of replacing the metering equipment, it is difficult to avoid the vibration of the box, which will cause the short-circuit gasket to loosen and poor contact, thereby causing the secondary side of the current transformer to open, posing a great safety hazard. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a metering junction box with a short-circuit prompt function and a short-circuit operation method thereof, which solves the problems arising in the prior art.

[0004] A metering junction box with a short-circuit prompt function described in the present invention includes a junction box body, wherein the junction box body includes a box body and a box cover, wherein a plurality of terminal posts are distributed in the box body, wherein gaskets are respectively provided in the terminal posts, wherein tracks are provided on the gaskets, wherein conductive sliders are provided on the tracks, wherein the conductive sliders include two, wherein the two conductive sliders move relative to each other on the tracks, wherein a telescopic component is connected to the outer side of one of the conductive sliders, wherein a limiting component is provided on the outer side of the gasket, wherein the telescopic component is located between the conductive slider and the limiting component, wherein a slide groove is provided in the conductive slider, wherein a fixing bolt is installed in the middle of the slide groove, and wherein a warning mark is also provided in the slide groove.

[0005] Furthermore, the conductive slider includes a conductive slider 1 and a conductive slider 2, the conductive slider 1 and the conductive slider 2 move relative to each other on the track, and the outer side of the conductive slider 2 is connected to a telescopic component.

[0006] Furthermore, the limiting component is a baffle, and the telescopic component is located between the second conductive slider and the baffle.

[0007] Furthermore, the telescopic component is a spring.

[0008] Furthermore, the gaskets include current horizontal gaskets and voltage vertical gaskets.

[0009] Furthermore, the fixing bolts include fixing bolt 1 and fixing bolt 2, and the fixing bolt 1 and fixing bolt 2 are movable in the slide groove.

[0010] The short-circuit operation method of a metering junction box with a short-circuit prompt function described in the present invention comprises the following steps:

[0011] S1: When performing the secondary side short-circuit operation of the current transformer, push the conductive slider 1 to the right. When the right side surface of the conductive slider 1 contacts the left side of the conductive slider 2, continue to move until the leftmost warning mark on the conductive slider 2 is under the fixing bolt 2. At this time, the spring is in a contracted state. Tighten the fixing bolts one by one to complete the secondary side short-circuit operation of the current transformer and replace the metering equipment.

[0012] Furthermore, after the metering equipment is replaced, it is necessary to restore the wiring of the junction box, loosen fixing bolt one and fixing bolt two respectively, and push the conductive slider one back to its original position. At this time, the spring is in a natural state, the two electric poles are separated, and the warning sign is exposed to the outside to alert the staff.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a metering junction box with a short-circuit prompt function and a short-circuit operation method thereof. The present invention provides an obvious short-circuit prompt function for the short-circuit operation of the secondary side of the current transformer. During the operation, the risk of open circuit caused by loose short-circuit gaskets and poor contact due to the vibration of the box can be discovered in time, thereby providing the staff with real-time corresponding processing, which is conducive to improving the safety level on site. The problems existing in the prior art are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the entire metering junction box in an embodiment of the present invention;

[0016] Figure 2 For the present invention Figure 1 The structural state at A Figure 1

[0017] Figure 3 For the present invention Figure 1 The structural state at A Figure 2 ;

[0018] In the figure: 1. Voltage terminal; 2. Current terminal; 3. Voltage vertical gasket; 4. Current horizontal gasket; 5. Conductive slider 1; 6. Fixing bolt 1; 7. Conductive slider 2; 8. Spring; 9. Baffle; 10. Warning sign; 11. Track; 12. Slide; 13. Fixing bolt 2. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0020] Embodiment 1:

[0021] A metering junction box with a short-circuit prompt function described in the present invention includes a junction box body, wherein the junction box body includes a box body and a box cover, wherein a plurality of terminal posts are distributed in the box body, wherein gaskets are respectively provided in the terminal posts, wherein a track 11 is provided on the gasket, wherein a conductive slider is provided on the track 11, wherein two conductive sliders are provided, wherein the two conductive sliders move relative to each other on the track 11, wherein a telescopic component is connected to the outer side of one of the conductive sliders, wherein a limiting component is provided on the outer side of the gasket, wherein the telescopic component is located between the conductive slider and the limiting component, wherein a slide groove 12 is provided in the conductive slider, wherein a fixing bolt is installed in the middle of the slide groove 12, and wherein a warning mark 10 is also provided in the slide groove 12.

[0022] The conductive slider includes a conductive slider 1 5 and a conductive slider 2 7 . The conductive slider 1 5 and the conductive slider 2 7 move relative to each other on the track 11 . The outer side of the conductive slider 2 7 is connected to a telescopic component.

[0023] The limiting component is a baffle 9 , and the telescopic component is located between the conductive sliding block 2 7 and the baffle 9 .

[0024] The telescopic component is a spring 8 .

[0025] The gaskets include a current horizontal gasket 4 and a voltage vertical gasket 3 .

[0026] The fixing bolts include a fixing bolt 1 6 and a fixing bolt 2 13 , and the fixing bolt 1 6 and the fixing bolt 2 13 are movable in the slide groove 12 .

[0027] The working process of this embodiment is: as a preferred embodiment, taking the current horizontal gasket 4 as an example, when performing the secondary short-circuit operation of the current transformer, by pushing the conductive slider 1 5 to the right, when the right surface of the conductive slider 1 5 contacts the left side of the conductive slider 2 7, continue to move until the leftmost warning mark 10 on the conductive slider 2 7 is under the fixing bolt. At this time, the spring 8 is in a contracted state, and the fixing bolts are tightened in turn to complete the secondary short-circuit operation of the current transformer.

[0028] After the metering equipment is replaced, the wiring of the junction box needs to be restored. At this time, the two fixing bolts are loosened respectively, and the conductive slider 5 is pushed back to the original position, and then the bolts are tightened. At this time, the spring 8 is in a natural state, and the two current wire posts 2 are separated. If it is a voltage terminal 1, the operation is the same as in this embodiment.

[0029] Embodiment 2:

[0030] The short-circuit operation method of a metering junction box with a short-circuit prompt function described in the present invention comprises the following steps:

[0031] S1: When performing the secondary side short-circuit operation of the current transformer, push the conductive slider 1 5 to the right. When the right side surface of the conductive slider 1 5 contacts the left side of the conductive slider 2 7, continue to move until the leftmost warning mark 10 on the conductive slider 2 7 is under the fixing bolt 2 13. At this time, the spring 8 is in a contracted state. Tighten the fixing bolts one by one to complete the secondary side short-circuit operation of the current transformer and replace the metering equipment.

[0032] After replacing the metering equipment, it is necessary to restore the wiring of the junction box, loosen the fixing bolt 1 6 and the fixing bolt 2 13 respectively, and push the conductive slider 1 5 back to its original position. At this time, the spring 8 is in a natural state, the two electric poles are separated, and the warning sign 10 is exposed to the outside to warn the staff.

[0033] By observing the warning mark 10, it can be judged whether the short circuit is reliable, which can effectively avoid the hidden danger of open circuit on the secondary side of the current transformer caused by poor contact and looseness. This provides the staff with the opportunity to make corresponding treatment in real time, which is conducive to improving the safety level on site.

[0034] A metering junction box with a short-circuit prompt function and a short-circuit operation method thereof are adopted according to the embodiment of the present invention described above in combination with the accompanying drawings. The present invention provides an obvious short-circuit prompt function for the short-circuit operation on the secondary side of the current transformer. During the operation, the risk of open circuit caused by loose short-circuit gaskets and poor contact caused by the vibration of the box can be discovered in time, thereby providing the staff with the opportunity to make corresponding treatments in real time, which is beneficial to improving the safety level on site. The problems existing in the prior art are solved. However, the present invention is not limited to the described implementation modes, and these changes, modifications, substitutions and deformations to the implementation modes still fall within the protection scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A short-circuit operation method for a metering junction box with a short-circuit prompt function, comprising a junction box body, the junction box body comprising a box body and a box cover, a plurality of binding posts are distributed in the box body, and gaskets are respectively arranged in the binding posts, characterized in that: The gasket is provided with a track (11), the track (11) is provided with a conductive slider, the conductive slider includes two conductive sliders, the two conductive sliders move relative to each other on the track (11), a telescopic component is connected to the outer side of one of the conductive sliders, a limiting component is provided on the outer side of the gasket, the telescopic component is located between the conductive slider and the limiting component, a slide groove (12) is provided in the conductive slider, a fixing bolt is installed in the middle of the slide groove (12), and a warning mark (10) is also provided in the slide groove (12); the conductive slider includes a conductive slider 1 (5) and a conductive slider 2 (7) , the conductive slider 1 (5) and the conductive slider 2 (7) move relative to each other on the track (11), and the outer side of the conductive slider 2 (7) is connected to the telescopic component; the limiting component is a baffle (9), and the telescopic component is located between the conductive slider 2 (7) and the baffle (9); the telescopic component is a spring (8); the gasket includes a current horizontal gasket (4) and a voltage vertical gasket (3); the fixing bolt includes a fixing bolt 1 (6) and a fixing bolt 2 (13), and the fixing bolt 1 (6) and the fixing bolt 2 (13) are movable in the slide groove (12); The method comprises the following steps: S1: When performing the short-circuit operation on the secondary side of the current transformer, the conductive slider 1 (5) is pushed to the right. When the right side surface of the conductive slider 1 (5) contacts the left side of the conductive slider 2 (7), it continues to move to the right until the leftmost warning mark (10) on the conductive slider 2 (7) is under the fixing bolt 2 (13). At this time, the spring (8) is in a contracted state. The fixing bolts are tightened in turn to complete the short-circuit operation on the secondary side of the current transformer and replace the metering device. After the replacement of the metering device is completed, it is necessary to restore the wiring of the junction box, loosen the fixing bolt 1 (6) and the fixing bolt 2 (13) respectively, and push the conductive slider 1 (5) back to its original position. At this time, the spring (8) is in a natural state, the two electric poles are separated, and the warning mark (10) is exposed to the outside to warn the staff.

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