Mobile electrical equipment overvoltage and undervoltage test device

Abstract

The utility model relates to a mobile electrical equipment overvoltage and undervoltage test device, comprising a first cabinet body (20) which is internally connected with a voltage regulator (15) and an isolation transformer (16) and externally connected with a pulley (22); and the second cabinet body (21) is connected with the first cabinet body (20), a control panel is arranged on the first surface of the second cabinet body (21), a wiring end is arranged on the second surface of the second cabinet body (21), and a contactor group (18) is connected in the second cabinet body (21). Compared with the prior art, the testing device has the advantages of improving the testing efficiency, reducing the operation difficulty and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to overvoltage and undervoltage test device technical field especially is related to a mobile electrical equipment overvoltage and undervoltage test device. BACKGROUND

[0002] In the electrical equipment overvoltage and undervoltage test, the traditional temporary line construction mode has many problems. The line construction process is complicated, often needs to spend several hours, and needs to be carefully checked after each construction is completed to ensure that the line connection is correct, has no security risk. This way not only is inefficient, but also is prone to human error, which affects the accuracy and reliability of the test results.

[0003] Therefore, for the overvoltage and undervoltage test of batch electrical equipment, there are problems of inconvenient movement, complex wiring, UTILITY MODEL CONTENTS

[0004] The utility model discloses a mobile electrical equipment overvoltage and undervoltage test device to overcome the defects of the prior art, so as to improve the convenience of the overvoltage and undervoltage test scene of batch electrical equipment.

[0005] The purpose of the utility model can be realized through the following technical schemes:

[0006] The utility model provides a mobile electrical equipment overvoltage and undervoltage test device, comprising:

[0007] The first cabinet body is internally connected with a voltage regulator and an isolation transformer, and is externally connected with a pulley.

[0008] The second cabinet body is connected with the first cabinet body, and for the second cabinet body, a control panel is arranged on the first surface, a wiring terminal is arranged on the second surface, and a contactor group is connected in the second cabinet body.

[0009] As a preferred technical scheme, the control panel comprises a switch group, a button group, a power indicator light and a display table.

[0010] As a preferred technical scheme, the switch group comprises a key switch, a timer switching switch, a two-stage four-stage switching switch, a total output voltage switch and a voltage regulator switch.

[0011] As a preferred technical scheme, the button group comprises a voltage regulator voltage reduction button and a voltage regulator voltage increase button.

[0012] As a preferred technical scheme, the display table comprises a voltage regulator voltage display table, a total voltage display table and a timer display table.

[0013] As a preferred technical scheme, the wiring terminal of the second surface comprises a voltage output wiring terminal and a timer wiring terminal.

[0014] As a preferred technical scheme, the voltage output terminal and the timer terminal are connected through the experiment product mounting guide rail.

[0015] As a preferred technical scheme, the first cabinet comprises two branches in parallel, and each branch comprises a voltage regulator and an isolation transformer in series.

[0016] As a preferred technical scheme, the secondary side of each isolation transformer is connected with a voltage meter in parallel.

[0017] As a preferred technical scheme, the contactor group comprises a plurality of contactors, and the trigger coil of one contactor is connected with the input end of the voltage regulator of one branch.

[0018] Compared with the prior art, the utility model has at least one of the following beneficial effects:

[0019] (1) improve test efficiency: the utility model discloses integrated design, pluggable interface and movable pulley, greatly shorten the test preparation time, and it is convenient to test at different places.

[0020] (2) reduce the operation difficulty: the utility model discloses control panel, terminal and contactor are set up, and the line connection and operation step of group are simplified, and human error is reduced.

[0021] (3) test interference is small: the utility model discloses respectively setting up timing circuit and test main circuit, and the voltage increment and decrement of main circuit are separated from timing circuit, guarantee the accuracy of test. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the front view of mobile electrical equipment overvoltage and undervoltage test device in the embodiment;

[0023] Figure 2 It is the side view of mobile electrical equipment overvoltage and undervoltage test device in the embodiment;

[0024] Figure 3 It is the perspective view of mobile electrical equipment overvoltage and undervoltage test device in the embodiment;

[0025] Figure 4 It is the test circuit diagram in mobile electrical equipment overvoltage and undervoltage test device in the embodiment;

[0026] Figure 5 It is the timing circuit diagram of mobile electrical equipment overvoltage and undervoltage test device in the embodiment,

[0027] Wherein, 1, total power indicator; 2, key switch; 3, voltage display table of voltage regulator; 4, total voltage display table; 5, timer display table; 6, timer switch; 7, two-pole four-pole switch; 8, voltage regulator boost button; 9, voltage regulator down button; 10, voltage regulator switch; 11, total output voltage switch; 12, voltage output terminal; 13, test product installation guide rail; 14, timer terminal; 15, voltage regulator; 16, isolation transformer; 17, wiring slot; 18, contactor group; 19, quick terminal; 20, first cabinet; 21, second cabinet; 22, pulley. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0029] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings or the orientation or position relationship usually placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In view of the problems of the prior art, the embodiment provides a mobile electrical equipment overvoltage and undervoltage test device, which is described below with reference to Figures 1-3 which mainly comprises:

[0032] The first cabinet 20 is internally connected with the voltage regulator 15 and the isolation transformer 16, and is externally connected with the rotatable and movable pulley 22 at four end points of the bottom side. In the embodiment, the voltage regulator and the isolation transformer are realized by using commercially available products.

[0033] The second cabinet 21 is connected with the first cabinet 20. The first surface of the second cabinet 21 is provided with a control panel, and the second surface is provided with a wiring terminal. The second cabinet is connected with the contactor group 18. The contactor group 18 is connected with the voltage regulator 15 and the isolation transformer 16 in the first cabinet 20 through the quick wiring terminal 19 and the wiring groove 17.

[0034] Referring to Figure 1 , the control panel includes a switch group, a button group, a total power supply indicator 1, and a display table.

[0035] Specifically, the switch group includes a key switch 2, a timer switching switch 6, a two-stage and four-stage switching switch 7, a total output voltage switch 11, and a voltage regulator switch 10.

[0036] The button group includes a voltage regulator voltage reduction button 9 and a voltage regulator voltage increase button 8.

[0037] The display table includes a voltage regulator voltage display table 3, a total voltage display table 4, and a timer display table 5.

[0038] Referring to Figure 2 , the wiring terminal of the second surface of the second cabinet 21 includes a voltage output wiring terminal 12 and a timer wiring terminal 14. An experimental product mounting guide rail 13 is arranged between the voltage output wiring terminal 12 and the timer wiring terminal 14.

[0039] At the circuit connection level, referring to Figure 4 is a schematic diagram of the test main circuit, which includes two parallel branches. Each branch includes a voltage regulator 15 (corresponding to TA1, TA2) and an isolation transformer 16 (corresponding to T2, T2) in series. The front end of one voltage regulator TA2 is connected with the coil of one contactor KM1, which serves as the trigger source of the contactor. The front end of the voltage regulator of each branch is provided with a voltage regulator switch 10 (corresponding to K1, K2). The end of the two branches is provided with a total output voltage switch 11 (corresponding to K3). D represents an electrical equipment experimental product connected through the voltage output wiring terminal 12 and mounted on the experimental product mounting guide rail 13. After passing through the electrical equipment experimental product, the coil of another two contactors KM2 and KM3 is connected, which serves as the trigger source of KM2 and KM3. The secondary side of each isolation transformer 16 is connected with a voltage meter, which is connected to the voltage regulator voltage display table 3. The front of the output voltage switch 11 is connected with a voltage meter, which is connected to the total voltage display table 4. Preferably, the voltage regulators 15 and the isolation transformers 16 of the two branches work in different voltage ranges.

[0040] Referring to Figure 5For the timing circuit diagram, the external timer is connected to the second cabinet 21 through the timer terminal 14, one end of the timer is connected to the timer switch 6 (corresponding to SW1), the contactor KM1, the two-pole four-pole switch 7 (corresponding to SW2), the two contactors KM2 and KM3 in parallel, and finally back to the timer in sequence. The timer is also connected to the timer display table 5.

[0041] The working principle of the device is as follows:

[0042] By dragging the first cabinet 20 and the second cabinet 21, the device is dragged to the target position by the pulley 22, the experimental product to be tested is installed to the experimental product installation guide rail 13, and the circuit is connected in the mode of Figure 4 、 Figure 5 Adjust the timer switch 6 to the corresponding test gear, adjust the two-pole four-pole switch 7 to the gear corresponding to the required voltage of the test, turn the key switch 2 to turn on the power supply, open the voltage regulator switch 10, and adjust the required test voltage through the voltage regulator up button 8 and the voltage regulator down button 9. During the period, the voltage display table 3 of the voltage regulator will display the current voltage in real time. According to the specific experimental content, adjust the voltage regulator switch 10 and the total output voltage switch 11 to add or reduce the voltage, or output a single voltage. The timer displays the time result of the test to the timer display table 5.

[0043] It should be noted that the trigger, the switch, and the timer in the utility model are realized by using commercially available products, and the timing software built-in the timer uses an existing program. The utility model does not involve the improvement of the method level.

[0044] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the technical field can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model. These modifications or replacements should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A mobile electrical equipment over- and under-voltage test device, characterized in that, The utility model relates to a kind of portable multifunctional power supply device, including: First cabinet (20), inside connection has voltage regulator (15) and isolation transformer (16), outside connection has pulley (22); Second cabinet (21) is connected with the first cabinet (20), for the second cabinet (21), control panel is equipped on the first surface, wiring terminal is provided with on the second surface, contactor group (18) is connected in the second cabinet.

2. A mobile electrical equipment over / under voltage test apparatus according to claim 1, wherein The control panel includes a switch group, a button group, a total power indicator light (1), and a display table.

3. A mobile electrical equipment over / under voltage test apparatus according to claim 2, wherein The switch group includes a key switch (2), a timer switch (6), a two-stage four-stage switch (7), a total output voltage switch (11), and a voltage regulator switch (10).

4. A mobile electrical equipment over / under voltage test apparatus according to claim 2, wherein The button group includes a voltage regulator down button (9) and a voltage regulator up button (8).

5. The mobile electrical equipment over / under voltage test apparatus according to claim 2, wherein The display table includes a voltage regulator voltage display table (3), a total voltage display table (4), and a timer display table (5).

6. A mobile electrical equipment over / under voltage test apparatus according to claim 1, wherein The wiring terminal on the second surface includes a voltage output terminal (12) and a timer terminal (14).

7. A mobile electrical equipment over / under voltage test apparatus according to claim 6, wherein An experimental product mounting guide rail (13) is provided between the voltage output terminal (12) and the timer terminal (14).

8. The mobile electrical equipment over / under voltage testing device of claim 1, wherein, The first cabinet (20) includes two parallel branches, each branch includes a voltage regulator (15) and an isolation transformer (16) in series.

9. A mobile electrical equipment over / under voltage test apparatus according to claim 8, wherein A voltage meter is connected in parallel to the secondary side of each isolation transformer (16).

10. The mobile electrical equipment over / under voltage testing device of claim 8, wherein, The contactor group (18) includes multiple contactors, and the trigger coil of one contactor is connected to the input end of the voltage regulator (15) of one branch.

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