CN210604772U

CN210604772U - Current testing device

Info

Publication number: CN210604772U
Application number: CN201921292175.9U
Authority: CN
Inventors: 王腾飞; 赵春梅
Original assignee: Huayuan Zhongrui Technology Beijing Co ltd
Current assignee: Huayuan Zhongrui Technology Beijing Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-22
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a current testing device, including the removal test vehicle, be equipped with the holder that is used for being connected with the circuit breaker of cubical switchboard on the removal test vehicle, the holder is connected with miniature circuit breaker's inlet wire end, and miniature circuit breaker's inlet wire end still is connected with display device, and miniature circuit breaker's leading-out terminal is connected with single-phase condenser. Use the utility model provides a current test device, in the current test process, the main bus of electrified voltage seals in low-voltage switchgear, and operating personnel can keep safe distance with the cabinet body of being surveyed after pressing from both sides the holder again, and the phase current that the digital display meter that simultaneously operating personnel can observe outside safe distance in the corresponding drawer detected out, consequently can guarantee testing personnel's personal safety. The device does not need to frequently pull drawers of the cabinet body, simplifies the current testing steps, is convenient to move and simple to operate, and effectively improves the working efficiency.

Description

Current testing device

Technical Field

The utility model relates to a power equipment tests technical field, more specifically says, relates to a current test device.

Background

At present, a current general detection method for a low-voltage drawer cabinet or an outgoing line cabinet is as follows: the first step is as follows: the breaker must be in the opening state, and A, B, C, N power is added to the upper port, and the second step: one of the two test clips on the primary side of the current generator is in short circuit after penetrating through the current transformer, and the third step is as follows: the current generator outputs current, and whether the current is consistent with the current output by the current generator or not is observed from an ammeter or other observers; or directly throwing the current transformer away, connecting the two test clamps on the secondary side of the current generator with the secondary terminal of the measured point, and judging whether the reading is consistent with the output current of the current generator. The detection method is complicated, the drawers of the drawer cabinet need to be frequently pulled open, the test efficiency is low, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a current testing device to solve the problems of the current testing device such as being cumbersome and having low testing efficiency.

In order to achieve the first object, the present invention provides the following technical solutions:

a current testing device comprising:

the movable testing vehicle is provided with a clamping piece used for being connected with a circuit breaker of the switch cabinet, the clamping piece is connected with the wire inlet end of the miniature circuit breaker, the wire inlet end of the miniature circuit breaker is further connected with a display device, and the wire outlet end of the miniature circuit breaker is connected with a single-phase capacitor.

Preferably, be equipped with operating panel on the removal test car, miniature circuit breaker with display device equally divide and do not set up on the operating panel.

Preferably, the single-phase capacitor is arranged inside the mobile test vehicle.

Preferably, the display device is embodied as a red indicator light.

Preferably, the mobile test vehicle is provided with a grounding copper bar for grounding.

Preferably, the clamping piece is a wire clamp terminal, and the number of the wire clamp terminals is two.

Preferably, the bottom of the mobile test vehicle is provided with pulleys for sliding, and the pulleys are uniformly arranged at the bottom of the mobile test vehicle.

The utility model provides a current test device, including the mobile test car, be equipped with the holder that is used for being connected with the circuit breaker of cubical switchboard on the mobile test car, the holder is connected with miniature circuit breaker's inlet wire end, and miniature circuit breaker's inlet wire end still is connected with display device, and miniature circuit breaker's leading-out terminal is connected with single-phase condenser.

Use the utility model provides a current test device, one of the end opening three phase current of circuit breaker is connected in holder and the low-voltage switchgear when using in, it need not to pull open the drawer of drawer cabinet, can directly press from both sides on cable joint department and the zero row of being qualified for the next round of competitions, the miniature circuit breaker on the mobile test car is closed again to circuit breaker switching-on back in the low-voltage switchgear, and single-phase capacitor electric capacity drops into, shows the electric current that corresponds the phase sequence through the digital display table. In the current test process, the main bus with voltage is sealed in the low-voltage switch cabinet, the operator can keep a safe distance with the measured cabinet body after clamping the clamping piece, and simultaneously the operator can observe the phase current detected by the digital display meter in the corresponding drawer outside the safe distance, so that the personal safety of the tester can be ensured. The device does not need to frequently pull drawers of the cabinet body, simplifies the current testing steps, is convenient to move and simple to operate, and effectively improves the working efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a current testing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic front view of a low-voltage switchgear provided in an embodiment of the present invention during testing;

fig. 3 is a reverse side operation installation schematic diagram of the low-voltage switch cabinet provided by the embodiment of the present invention during testing.

The drawings are numbered as follows:

the device comprises a wire clamp terminal 1, a mobile test vehicle 2, a miniature circuit breaker 3, a red indicator lamp 4, a grounding copper bar 5, a pulley 6, a single-phase capacitor 7, a wiring terminal 8, a digital display meter 9 and a main bus 10.

Detailed Description

The embodiment of the utility model discloses current testing device to solve the loaded down with trivial details and low scheduling problem of efficiency of software testing of current testing device.

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.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a current testing apparatus according to an embodiment of the present invention; fig. 2 is a schematic front view of a low-voltage switchgear provided in an embodiment of the present invention during testing; fig. 3 is a reverse side operation installation schematic diagram of the low-voltage switch cabinet provided by the embodiment of the present invention during testing.

In a specific embodiment, the utility model provides a current testing device, including mobile test car 2, be equipped with the holder that is used for being connected with the circuit breaker of cubical switchboard on the mobile test car 2, the holder is connected with miniature circuit breaker 3's inlet wire end, and miniature circuit breaker 3's inlet wire end still is connected with display device, and miniature circuit breaker 3's leading-out terminal is connected with single-phase capacitor 7.

The clamping member is preferably the clip terminal 1, and in other embodiments, the specific form of the clamping member can be selected by oneself as long as the same technical effect can be achieved. The display device can be specifically an indicator lamp to remind the worker of the current charged state and protect personal safety. As shown in fig. 3, in use, A, B, C, N power is applied to the circuit breaker inside the low-voltage switch cabinet; one phase (external cable connection position) of any A, B, C three phases of the lower opening of the circuit breaker is clamped by a wire clamp terminal 1 on the movable test vehicle 2. After the circuit breaker inside the low-voltage switch cabinet is switched on, the miniature circuit breaker 3 on the movable handcart is switched on, the capacitor in the movable handcart is put into use, and as shown in fig. 2, the digital display meter 9 displays the current corresponding to the phase sequence.

Wherein, the bottom of mobile test car 2 is equipped with and is used for gliding pulley 6, and pulley 6 evenly sets up in the bottom of mobile test car 2.

Use the utility model provides a current test device, one of the end opening three phase current of circuit breaker is connected in holder and the low-voltage switchgear when using in, it need not to pull open the drawer of drawer cabinet, can directly press from both sides on cable joint department and the zero row of being qualified for the next round of competitions, the circuit breaker 3 on the test car 2 is moved in the reclosing after the low-voltage switchgear circuit breaker combined floodgate, and 7 electric capacities of single-phase capacitor drop into, show the electric current that corresponds the phase sequence through digital display table 9. In the current testing process, the main bus 10 with voltage is sealed in the low-voltage switch cabinet, the operator can keep a safe distance with the tested cabinet body after clamping the clamping piece, and simultaneously the operator can observe the phase current detected by the digital display meter 9 in the corresponding drawer outside the safe distance, so that the personal safety of the tester can be ensured. The device does not need to frequently pull drawers of the cabinet body, simplifies the current testing steps, is convenient to move and simple to operate, and effectively improves the working efficiency.

Specifically, be equipped with operating panel on the mobile test car 2, miniature circuit breaker 3 and display device are equallyd divide and are set up respectively on operating panel. The device is arranged to perform function division, and the operation panel is provided with a device for facilitating observation operation. Operation panel and the detachable fixed connection of mobile test car 2 to the dismouting of being convenient for. Further, a single-phase capacitor 7 is provided inside the mobile test cart 2.

In one embodiment, the mobile testing vehicle 2 is provided with a grounding copper bar 5 for grounding, so as to protect the operation safety. The device is connected with a 10-square-millimeter copper wire through a clamp terminal 1, and one end of the clamp terminal 1 clamps a measured point so that an alternating current power supply flows into a miniature circuit breaker 3. The other end of the 10 square millimeter copper wire is connected into the wiring terminal 8, the other end of the wiring terminal 8 is connected with the wire inlet end of the miniature circuit breaker 3 through the 10 square millimeter copper wire, the wire inlet end of the miniature circuit breaker 3 is connected with the red indicator lamp 4 through the 1.5 square millimeter copper wire, the red indicator lamp 4 and the miniature circuit breaker 3 are respectively fixed on the operation panel, the wire outlet end of the miniature circuit breaker 3 is connected with the single-phase capacitor 7 through the 10 square millimeter copper wire, the single-phase capacitor 7 is fixed in the mobile test vehicle 2, the outer part of the single-phase capacitor is provided with the grounding copper bar 5, so.

As shown in fig. 3, the low-voltage switch cabinet comprises a main bus 10, N rows (one is a zero row for working current to pass through) and a PE row (a zero current row for protecting grounding) which are enclosed in a cabinet body, and during testing, a tester works on the back of the low-voltage switch cabinet and passes through 2 wire clamp terminals 1, wherein one wire clamp a tested phase sequence, and the other wire clamp the N rows. Then, the main bus 10 on the bus side of the tested loop is electrified, the breaker of the tested loop is closed, the miniature breaker 3 is closed, and the capacitor runs in the circuit, as shown in fig. 2, a tester checks the display value of the digital display table 9 of the tested loop on the front side of the low-voltage switch cabinet to see whether the display value is consistent with the current which can be generated by the capacity of the capacitor.

When exiting: the miniature circuit breaker 3 is firstly disconnected, and then the circuit breaker of the tested circuit is disconnected. And under the condition that the wire inlet side of the current testing device is determined to be free of electricity, the wire clamp terminal 1 is moved to other phase sequences to be tested again until the current inspection is finished.

Finally, it should also be 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.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A current testing device, comprising:

2. The current testing device according to claim 1, wherein an operation panel is provided on the mobile testing vehicle, and the miniature circuit breaker and the display device are respectively provided on the operation panel.

3. The current testing device of claim 2, wherein the single-phase capacitor is disposed inside the mobile testing vehicle.

4. The current testing device according to claim 3, wherein the display device is embodied as a red indicator light.

5. The current testing device according to claim 4, wherein the mobile testing vehicle is provided with a grounding copper bar for grounding.

6. Current testing device according to claim 5, characterized in that the clamping piece is embodied as a clip terminal, the number of which is two.

7. The current testing device according to claim 6, wherein the bottom of the mobile testing vehicle is provided with pulleys for sliding, and the pulleys are uniformly arranged on the bottom of the mobile testing vehicle.