Power-on inspection device

Abstract

The utility model belongs to the technical field of switch cabinet detection, and particularly relates to a power-on inspection device. The device comprises a shell and a power module, the power module is arranged in the shell, the shell is provided with a device input end used for being connected with commercial power and a device output end used for being connected with a switch cabinet bus to enable a to-be-detected access in a switch cabinet to form a closed loop, and the input end of the power module is electrically connected with the device input end. And the output end of the power supply module is electrically connected with the output end of the device. According to the utility model, all electrical parts are integrated in one suitcase, the ground area is not occupied, the device is connected with a switch cabinet bus to form a loop, the power-on state of a switch cabinet product is simulated, the detection of a secondary loop, secondary electrical parts and electrical interlocking is completed at one time, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch cabinet detection, and in particular relates to a power-on detection device. Background Art

[0002] At present, secondary wiring misconnection, missing connection, virtual connection and primary five-protection interlock debugging still occupy the top few positions in switch cabinet product quality indicators. After the whole cabinet is assembled, the secondary circuit and electrical interlock of the switch cabinet product need to be inspected. The secondary circuit inspection uses the method of checking the wire caps one by one and manually debugging the electrical interlock, which is time-consuming and cannot verify the quality of components.

[0003] For the power-on inspection of switch cabinets, desktop power-on inspection tables are currently mostly used, which occupy a large area and are not portable enough. In addition, the power module capacity of the power-on inspection table is large, and it can perform power-on inspections on 6 to 7 switch cabinets at the same time. If the number of switch cabinets that need to be tested is small, the use of the power-on inspection table is power-consuming.

[0004] For example, the Chinese utility model patent authorization announcement with the authorization announcement number CN220603599U and the authorization announcement date 2024.03.15 discloses a switch cabinet drawer inspection device, including a chassis, a drawer chamber is provided on the chassis, the top surface and the front side of the drawer chamber are respectively provided with an operation port and a loading and unloading port, a drawer transfer plate is provided on the rear side of the drawer chamber, and a drawer transfer terminal for connecting to the drawer is provided on the drawer transfer plate; a control device is provided in the chassis, and the control device includes a power module, a wiring terminal, etc. Such a setting often makes the inspection device larger in size and inconvenient to move. Utility Model Content

[0005] The utility model aims to provide a power-on inspection device to solve the technical problem that the power-on inspection device in the prior art is large in size and inconvenient to move.

[0006] In order to solve the above-mentioned technical problems, the utility model provides a technical solution for a power-on inspection device: it includes a shell and a power module, the power module is arranged inside the shell, and the shell is provided with a device input end for connecting to the mains power and a device output end for connecting to the switch cabinet busbar to form a closed loop for the passage to be inspected in the switch cabinet, the input end of the power module is electrically connected to the input end of the device, and the output end of the power module is electrically connected to the output end of the device.

[0007] The beneficial effects of the above technical solution are as follows: the technical solution of the power-on inspection device of the utility model belongs to an improved invention. The utility model integrates all electrical components into a suitcase, does not occupy the floor area, and is simple and portable. The device is connected to the switch cabinet busbar to form a loop, simulates the power-on state of the switch cabinet product, completes the detection of the secondary circuit, secondary electrical components and electrical interlock at one time, and improves the detection efficiency.

[0008] Furthermore, the power supply module includes an adjustable power supply module and a non-adjustable power supply module, the device output end includes an adjustable power supply output end and a non-adjustable power supply output end, the output end of the adjustable power supply module is connected to the adjustable power supply output end, and the output end of the non-adjustable unit module is connected to the non-adjustable power supply output end.

[0009] Furthermore, the output voltage of the adjustable power supply module is an adjustable direct current voltage of 0 to 220V.

[0010] Furthermore, the output voltage of the non-adjustable power module is a 110V non-adjustable DC voltage.

[0011] Furthermore, a panel socket is provided on the shell, and the panel socket constitutes the output end of the device.

[0012] Furthermore, an air switch is also provided in the shell, and the input end of the power module is electrically connected to the input end of the device through the air switch.

[0013] Furthermore, the device output end includes a first device output end, a second device output end and a third device output end; the first device output end is connected to the output end of the adjustable power module and outputs an adjustable DC voltage; the second device output end is connected to the output end of the non-adjustable power module and outputs a non-adjustable DC voltage; the third device output end is connected to the mains and outputs an AC voltage.

[0014] Furthermore, a terminal block is also provided in the shell, and the output end of the power module is electrically connected to the output end of the device through the terminal block.

[0015] Furthermore, the housing is a suitcase. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a suitcase of an embodiment of a power-on inspection device of the utility model;

[0017] Figure 2 A schematic diagram of the internal structure of a power-on inspection device according to an embodiment of the utility model;

[0018] Figure 3 The utility model is an electrical circuit diagram of an embodiment of a power-on inspection device.

[0019] Among them, 1. Safety panel socket; 2. Adjustable power module; 3. Non-adjustable power module; 4. Terminal block; 5. AC circuit breaker. DETAILED DESCRIPTION

[0020] The utility model provides a power-on inspection device: comprising a housing and a power module, wherein the power module is arranged inside the housing, and the housing is provided with a device input end for connecting to the mains and a device output end for connecting to the busbar of the switch cabinet to form a closed loop for the passage to be inspected in the switch cabinet, the input end of the power module is electrically connected to the device input end, and the output end of the power module is electrically connected to the device output end. The utility model integrates all electrical components in the housing, does not occupy floor space, and is simple and portable. Moreover, the power module capacity of the power-on inspection device can simultaneously conduct power-on tests on 2 to 3 switch cabinets, and the number of power-on inspection devices can be selected according to the number of switch cabinets that need to be tested, thereby reducing resource waste.

[0021] An embodiment of a power-on inspection device of the utility model:

[0022] A power-on inspection device of this embodiment includes a housing and a power module, the power module is arranged inside the housing, the housing is provided with a device input end for connecting to the mains and a device output end for connecting to the switch cabinet busbar to form a closed loop for the to-be-inspected path in the switch cabinet, the input end of the power module is electrically connected to the device input end, and the output end of the power module is electrically connected to the device output end. Specifically, the housing in this embodiment is a suitcase, which is convenient to carry.

[0023] Specifically, Figure 2 As shown, the power module includes an adjustable power module 2 and a non-adjustable power module 3. The adjustable power module 2 can convert 220V AC voltage into 0-220V DC voltage, and the non-adjustable power module can convert 220V AC voltage into 110V DC voltage. A variety of voltage types can be provided for the switch cabinet to simulate different working conditions of the switch cabinet.

[0024] Of course, in other implementations, the output voltage of the power module can be set to any specification as long as it can meet the relevant requirements of the switch cabinet to be tested.

[0025] Specifically, the device output end includes a first device output end, a second device output end and a third device output end; the first device output end is connected to the output end of the adjustable power module and outputs an adjustable DC voltage; the second device output end is connected to the output end of the non-adjustable power module and outputs a non-adjustable DC voltage; the third device output end is connected to the mains and outputs an AC voltage. That is, in this embodiment, the first device output end outputs an adjustable DC voltage of 0 to 220V, the second device output end outputs a non-adjustable DC voltage of 110V, and the third device output end outputs an AC voltage of 220V.

[0026] In this embodiment, a terminal block 4 is further provided in the housing of the power-on test device, and the output end of the power module is electrically connected to the switch cabinet busbar through the terminal block. Figures 1 to 3 As shown, one side of the terminal block 4 is the positive and negative poles of the adjustable power module, the positive and negative poles of the non-adjustable power module, the live wire, and the neutral wire; the other side of the terminal block is 0~220V positive, 0~220V negative, 110V positive, 110V negative, the live wire, and the neutral wire and is connected to the upper plate of the suitcase through 6 leads and fixed using a safety panel socket 1.

[0027] Of course, in other embodiments, the panel socket may not be used for fixing, but the wire head may be suspended in the air, as long as a reliable electrical connection can be formed during the inspection.

[0028] In this embodiment, an air switch is also provided inside the housing, and specifically, the air switch is an AC air switch 5. Figure 3 As shown, one end of the AC circuit breaker is connected to the input end of the adjustable power module 2 and the non-adjustable power module 3, and the other end is connected to the mains to obtain a 220V AC voltage. In particular, the live wire and the neutral wire on one side of the terminal block 4 are introduced from one end of the AC circuit breaker 5 so that the AC circuit breaker 5 can control the on and off of the 220V AC voltage.

[0029] When the power-on device is working, connect one end of the power test lead to the small busbar on the top of the switch cabinet, and the other end to the panel socket of the power-on device. Select the voltage type according to the needs to form a closed loop to detect the secondary circuit, secondary electrical components and electrical interlock of the switch cabinet. Specifically, the power test lead has 4 wires, 2 of which are connected to the positive and negative poles of the small busbar on the top of the switch cabinet, and the other end is connected to the positive and negative poles on the safety panel socket; the other 2 wires are connected to the live and neutral wires of the small busbar on the top of the switch cabinet, and the other end is connected to the live and neutral wires on the safety panel socket.

[0030] After the assembly and commissioning of the switch cabinet is completed, the power-on inspection of the switch cabinet is carried out. The specific steps are as follows:

[0031] 1. Before powering on, use a multimeter to measure all circuit breakers to make sure there are no short circuits or grounding problems. If there are any of the above problems, make corrections immediately. Power on only after the measurement is correct.

[0032] 2. First, manually store energy and close and open the circuit breaker. The trolley cannot be closed when it is in the middle position. Close and lock all cabinet doors, manually test the opening and closing of the ground switch (three times of opening and closing are powerful and without sticking, and the small valve of the ground switch opens and closes correctly), and the trolley is shaken in and out (three times without sticking). All indication positions are visible in the middle without deviation.

[0033] 3. Connect the power supply according to the secondary schematic diagram (pay attention to AC and DC). After power on, first check the front and rear room lights, whether the mechanism has completed energy storage, whether the status display instrument indicates correctly, whether the temperature and humidity controller displays correctly, and whether the micro-protection display is correct.

[0034] 4. When the earth switch is in the open position, the circuit breaker can be powered on and the local control closing and opening operations and the electric trolley can be operated. The circuit breaker can be effectively opened and closed three times in the inspection position and working position.

[0035] 5. When the circuit breaker is in the inspection position, the electric earth switch can be operated on and off three times.

[0036] 6. The transfer switch is in the remote control position for micro-protection operation. At this time, the earth switch must be in the open position and the circuit breaker in the inspection position.

[0037] 7. After the power-on inspection is completed, eliminate any problems found.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A power-on inspection device, comprising a housing and a power module, characterized in that: The power module is arranged inside the shell, and the shell is provided with a device input end for connecting to the mains and a device output end for connecting to the switch cabinet busbar to form a closed loop for the passage to be inspected in the switch cabinet. The input end of the power module is electrically connected to the device input end, and the output end of the power module is electrically connected to the device output end.

2. The power-on inspection device according to claim 1, characterized in that: The power supply module includes an adjustable power supply module and a non-adjustable power supply module, the device output end includes an adjustable power supply output end and a non-adjustable power supply output end, the output end of the adjustable power supply module is connected to the adjustable power supply output end, and the output end of the non-adjustable unit module is connected to the non-adjustable power supply output end.

3. The power-on inspection device according to claim 2, characterized in that: The output voltage of the adjustable power supply module is an adjustable direct current voltage of 0 to 220V.

4. The power-on inspection device according to claim 2, characterized in that: The output voltage of the non-adjustable power supply module is a 110V non-adjustable DC voltage.

5. The power-on inspection device according to claim 1, characterized in that: A panel socket is arranged on the shell, and the panel socket constitutes the output end of the device.

6. The power-on inspection device according to claim 1, characterized in that: An air switch is also provided in the shell, and the input end of the power module is electrically connected to the input end of the device through the air switch.

7. The power-on inspection device according to claim 2, characterized in that: The device output end includes a first device output end, a second device output end and a third device output end; the first device output end is connected to the output end of the adjustable power module and outputs an adjustable DC voltage; the second device output end is connected to the output end of the non-adjustable power module and outputs a non-adjustable DC voltage; the third device output end is connected to the mains and outputs an AC voltage.

8. The power-on inspection device according to claim 1, characterized in that: A terminal block is also provided in the shell, and the output end of the power module is electrically connected to the output end of the device through the terminal block.

9. The power-on inspection device according to claim 1, characterized in that: The housing is a suitcase.

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