Isolation vacuum circuit breaker inspection bench

Abstract

The utility model discloses an isolation vacuum circuit breaker inspection bench comprising a general control unit, and an input assembly and a display assembly which are electrically connected with the general control unit. The input assembly comprises at least one wiring terminal, and the wiring terminal is electrically connected to the general control unit; the display assembly comprises at least one of a display screen, an energy storage indication assembly, a switching-on indication assembly, an isolation switching-off / switching-on indication assembly, a phase input indication member and a voltage indication assembly. The device is used for improving the efficiency of field inspection operation and enhancing the convenience of work.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, and in particular to a testing bench for isolating vacuum circuit breakers. Background Technology

[0002] As an important component of high-voltage switchgear, the isolation vacuum circuit breaker requires a variety of testing instruments during actual use, whether for initial wiring tests during installation or for maintenance after use.

[0003] Therefore, having too many instruments for field operations can lead to problems such as inconvenience in carrying them and complicated wiring, which is not conducive to improving the efficiency of field inspection operations. Utility Model Content

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a contact box to improve the efficiency of on-site inspection operations and enhance the convenience of work.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A vacuum circuit breaker testing bench includes a central control unit and input components and a display assembly electrically connected to the central control unit;

[0007] The input component includes at least one terminal block, which is electrically connected to the main control unit;

[0008] The display assembly includes at least one of a display screen, an energy storage indicator component, a closing indicator component, an isolation opening / closing indicator component, a phase input indicator, and a voltage indicator component.

[0009] Furthermore, the number of the wiring terminals is two, and the number of insertion points of the two wiring terminals is different.

[0010] Furthermore, the energy storage indicator component includes at least three energy-stored indicator lights and three energy-not-stored indicator lights.

[0011] Furthermore, the closing indicator component includes at least eight closing indicator lights.

[0012] Furthermore, it also includes an extended indicator component, which includes at least one extended indicator light.

[0013] Furthermore, the isolation opening / closing indicator component includes at least ten isolation opening indicator lights and at least ten isolation closing indicator lights.

[0014] Furthermore, the phase input indicator includes a three-phase power input indicator.

[0015] Furthermore, the voltage indicator component includes at least three AC output indicator lights and at least one DC output indicator light.

[0016] Furthermore, it also includes a switching assembly comprising at least four air switches;

[0017] And / or, at least three control switches.

[0018] Furthermore, it also includes a housing, in which the central control unit is disposed, and the display assembly is disposed on one side of the housing.

[0019] In summary, the isolation vacuum circuit breaker testing bench provided by this utility model has the following technical effects:

[0020] By integrating various testing functions through the central control unit and display assembly, multiple test circuits can be connected to the wiring terminals of this invention through matching terminals when various tests are required on the isolation vacuum circuit breaker. This integrates multiple tests into one testing platform, reducing the number of testing tools required and thus reducing excessive wiring work, thereby improving the efficiency of inspection operations. In addition, the reduction in the number of tools lightens the burden on testing personnel and enhances the convenience of work. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0022] The meanings of the reference numerals in the attached figures are as follows:

[0023] 11. Housing; 12. Input component; 121. Terminal block; 13. Display screen; 14. Energy storage indicator component; 141. Energy stored indicator; 142. Energy not stored indicator; 15. Closing indicator component; 16. Extended indicator component; 17. Isolation open / close indicator component; 171. Isolation open indicator; 172. Isolation close indicator; 18. Phase input indicator; 19. Voltage indicator component; 191. AC output indicator; 192. DC output indicator; 20. Switching component; 21. Air switch; 22. Control switch. Detailed Implementation

[0024] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] See Figure 1 This utility model discloses a test bench for a vacuum circuit breaker, including a main control unit (not shown) and an input component 12; the input component 12 includes at least one terminal 121, which is electrically connected to the main control unit; and a display assembly electrically connected to the main control unit, the display assembly including at least one of a display screen 13, an energy storage indicator component 14, an isolation closing indicator component 15, an isolation opening / closing indicator component 17, a phase input indicator 18, and a voltage indicator component 19.

[0028] The vacuum circuit breaker testing bench is typically used for testing three-phase vacuum circuit breakers. In this embodiment, the main control unit can be a controller such as a control chip, which is powered by a power supply. Terminal 121 uses a commonly used connector in circuits. Connectors are typically divided into plugs and sockets, which are plugged into each other to achieve connection. Preferably, this embodiment uses a socket to connect to the main control unit because plugs have pins that are more prone to bending, and connecting a plug to the main control unit makes replacement inconvenient.

[0029] Importantly, in addition to the main control unit and the input component 12, this embodiment also includes at least two other components in the display assembly, which can be combined arbitrarily.

[0030] Optional, display 13 shows the voltage and current output of the display.

[0031] Optionally, the energy storage indicator component 14 includes at least three energy-stored indicator lights 141 and / or three energy-unstored indicator lights 142.

[0032] It is known that the standardized energy storage auxiliary contacts on the isolation vacuum circuit breaker are at least three. When the number exceeds three, the number of energy-stored indicator lights 141 can be increased accordingly. Taking three energy-stored indicator lights 141 as an example, the test circuits of the three energy-stored indicator lights 141 are connected to the circuits of the energy storage auxiliary contacts. When the energy storage contacts are wired correctly, all three energy-stored indicator lights 141 will be lit; otherwise, all three non-energy-stored indicator lights 142 will be lit.

[0033] Optionally, the closing indicator assembly 15 includes at least eight closing indicator lights.

[0034] It is known that the standardized closing auxiliary contacts on the isolating vacuum circuit breaker are at least eight (these closing auxiliary contacts are used on the three-phase pole closing lines). When the number exceeds eight, the number of energy-stored indicator lights 141 can be increased accordingly. Taking eight closing indicator lights as an example, the test lines for the eight closing indicator lights are connected to the lines of the closing auxiliary contacts. When the wiring of the closing auxiliary contacts is correct, all eight closing indicator lights will be lit; conversely, if the corresponding closing auxiliary contact is faulty, the corresponding closing indicator light will be off.

[0035] Alternatively, the closing indicator light can be converted into a disengagement indicator light as needed.

[0036] Optionally, it also includes an extended indicator component 16, which includes at least one extended indicator light.

[0037] The number of extended indicator lights can be one or more. For example, in this embodiment, there are eight extended indicator lights. It should be noted that non-standard isolation vacuum circuit breakers usually have additional extended contacts, which are used to test specific functions, and are not limited here. Similarly, the extended indicator light can be set to indicate that the extended contact is connected normally, which can be used as a judgment logic for inspection.

[0038] Optionally, the isolation opening / closing indicator assembly 17 includes at least ten isolation opening indicator lights 171 and at least ten isolation closing indicator lights 172.

[0039] It is known that the standardized isolation trip auxiliary contact and isolation trip auxiliary contact on the isolation vacuum circuit breaker are each at least ten (isolation trip auxiliary contact and isolation trip auxiliary contact are used for the isolation operation between the pole and the contact box). When the number of each is greater than ten, the number of isolation trip indicator 171 and isolation closing indicator 172 can be increased accordingly. Taking ten isolating trip indicator lights 171 and ten isolating close indicator lights 172 as examples, the test lines for the ten isolating trip indicator lights 171 and ten isolating close indicator lights 172 are connected to the lines of the isolating trip auxiliary contacts and the isolating close auxiliary contacts, respectively. When all the wiring of the isolating trip auxiliary contacts is correct, if the handcart of the isolating vacuum circuit breaker is in the isolating trip position, all ten isolating trip indicator lights 171 will be lit. If any of the isolating trip indicator lights 171 are not lit, it indicates that there is an abnormality in the isolating trip auxiliary contact, and corresponding maintenance is required. Similarly, when all the wiring of the isolating close auxiliary contacts is correct, if the handcart of the isolating vacuum circuit breaker is in the closed position, all ten isolating close indicator lights 172 will be lit. If any of the isolating close indicator lights 172 are not lit, it indicates that there is an abnormality in the isolating close auxiliary contact, and corresponding maintenance is required.

[0040] Optionally, the phase input indicator 18 includes a three-phase power input indicator.

[0041] As can be seen from the foregoing, the isolation vacuum circuit breaker is a three-phase isolation vacuum circuit breaker, and therefore the isolation vacuum circuit breaker test bench is equipped with a three-phase power input indicator light to indicate the power input status of the isolation vacuum circuit breaker.

[0042] Optionally, the voltage indication component 19 includes at least three AC output indicator lights 191 and at least one DC output indicator light 192.

[0043] As mentioned above, the three-phase power supply (generally 380V) is converted into 220V AC power through a transformer. Three 220V AC power output indicator lights 191 are then used to indicate whether the output is normal; a normal output indicates a lit light, while a faulty output indicates a lit light. Conversely, DC power is generally the power supply for the operating terminal, so the DC power output indicator light 192 indicates the circuit status at that terminal; a normal status indicates a lit light, while a faulty status indicates a lit light.

[0044] Optionally, it also includes a switch assembly 20, which includes at least four air switches 21; and / or at least three control switches 22.

[0045] In this circuit, considering the aforementioned three-phase power supply, energy storage power supply, switching power supply, and isolation switching power supply as power sources, an air switch 21 is installed in the isolation vacuum circuit breaker to ensure line safety. Therefore, the number of air switches 21 is related to the number of power supply units in the isolation vacuum circuit breaker. The diagram uses 1QF, 2QF, 3QF, and 4QF to represent these. It can be seen that after the isolation vacuum testing platform is connected to the isolation vacuum circuit breaker for testing, the aforementioned air switches 21 are installed to prevent short circuits caused by wiring problems in the isolation vacuum circuit breaker.

[0046] In addition, taking three control switches 22 as an example. The control switches 22 are connected to the circuits of the aforementioned energy storage power supply, the switching power supply, and the isolation switching power supply. In this embodiment, the three control switches are represented by QK1, QK2, and KK1 in the figure.

[0047] In addition, similar to the design purpose of the extended indicator component 16, this embodiment also provides KK2, KK3 and KK4 as extended and backup switches.

[0048] Optionally, the number of terminals 121 is two, and the number of insertion points of the two terminals 121 is different.

[0049] In this example, terminal block 121 includes two specifications: 46-pin and 64-pin, to be used for different testing needs.

[0050] Optionally, the isolation vacuum circuit breaker test bench also includes a housing 11, in which a central control unit is disposed, and a display assembly is disposed on one side of the housing 11.

[0051] In this embodiment, the housing 11 is used as the side of the display assembly and is divided into five regions from top to bottom, namely the first region, the second region, the third region, the fourth region and the fifth region.

[0052] In the first area, two terminals 121 are arranged from left to right, with a display screen 13 positioned between them. In the second area, from left to right, an energy storage indicator component 14, an extended indicator component 16, and a closing indicator component 15 are arranged, with three energy-stored indicator lights 141 and three non-energy-stored indicator lights 142 aligned vertically. Eight extended indicator lights are arranged in two rows of four. In the third area, from left to right, isolation trip indicator lights 171 and isolation closing indicator lights 172 are arranged. Specifically, ten isolation trip indicator lights 171 are arranged in two groups of five, with ten isolation closing indicator lights 172 arranged similarly. In the fourth area, from left to right, three-phase power input indicator lights and AC output indicator lights 191 (including a first AC output indicator light, a second AC output indicator light, and a third AC output indicator light) are arranged, with a DC output indicator light 192 positioned between the first and second AC output indicator lights. The fifth zone contains four air switches (1QF, 2QF, 3QF and 4QF) and six control switches (QK1, QK2, KK1, KK2, KK3 and KK4) from left to right.

[0053] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. Isolated vacuum circuit breaker test bench, characterized in that, The total control unit, an input assembly (12) and a display assembly electrically connected to the total control unit are included; The input assembly (12) includes at least one terminal (121) electrically connected to the total control unit; The display assembly includes at least one of a display screen (13), an energy storage indication assembly (14), a closing indication assembly (15), an isolation opening / closing indication assembly (17), a phase input indication (18) and a voltage indication assembly (19).

2. The isolated vacuum breaker testing bench according to claim 1, characterized in that, The number of the terminal (121) is two, and the number of the plug-in positions of the two terminals (121) is different.

3. The isolated vacuum breaker testing bench according to claim 1, characterized in that, The energy storage indication assembly (14) includes at least three energy storage indication lamps (141) and three non-energy storage indication lamps (142).

4. The isolated vacuum breaker testing bench of claim 1, wherein, The closing indication assembly (15) includes at least eight closing indication lamps.

5. The isolated vacuum breaker testing bench of claim 1, wherein, An extension indication assembly (16) is further included, and the extension indication assembly (16) includes at least one extension indication lamp.

6. The isolated vacuum breaker testing bench of claim 1, wherein, The isolation opening / closing indication assembly (17) includes at least ten isolation opening indication lamps (171) and at least ten isolation closing indication lamps (172).

7. The isolated vacuum breaker testing bench according to claim 1, characterized in that, The phase input indication (18) includes three-phase power input indication lamps.

8. The isolated vacuum breaker testing bench of claim 1, wherein, The voltage indication assembly (19) includes at least three AC output indication lamps (191) and at least one DC output indication lamp (192).

9. The isolated vacuum breaker testing bench of claim 1, wherein, A switch assembly (20) is further included, and the switch assembly (20) includes at least four air switches (21); And / or, at least three control switches (22).

10. The isolated vacuum circuit breaker testing station according to any of claims 1-9, characterized in that, A shell (11) is further included, and the total control unit is arranged in the shell (11), and the display assembly is arranged on one side of the shell (11).

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