Low-voltage switch cabinet drawer function detection test device

Abstract

The utility model discloses a low-voltage switch cabinet drawer function detection test device. The test device comprises a first direct-current power supply, a second direct-current power supply, a terminal strip, a plurality of indicating lamps, a first switch, a second switch and a connector, the positive output end and the negative output end of the first direct-current power supply are connected with a first terminal and a second terminal of the terminal strip respectively, and the positive output end of the second direct-current power supply is connected with a fifth terminal and a twelfth terminal of the terminal strip and the first end of the first switch. The negative output end of the second direct-current power supply is connected with the first end of each indicator light and the first end of the second switch; the second end of each indicator light and the second ends of the first switch and the second switch are respectively connected with different terminals of the terminal strip; and the terminal strip is connected with the connector. According to the utility model, the labor cost is greatly reduced, and the detection efficiency and the visualization degree of the detection result are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to switchgear detection technical field, especially related to a low voltage switchgear drawer function test device. BACKGROUND

[0002] At present, the structure form of drawer type MNS (M represents closed switch cabinet, N represents pull-out type, S represents electrical system) low voltage switch cabinet is fully enclosed drawer type, adopts high-quality aluminum-zinc plate to be formed after bending processing, can effectively prevent damp, dust, corrosion, prevents the accident that arc or busbar and other line short circuit causes due to the failure of electrical components. Each component in the cabinet body does not interfere with each other, each drawer can be independently powered off and powered on, and the hot standby power function can be realized, ensuring the continuous operation of the power distribution network. The drawer type MNS low voltage switch cabinet has wide application scenarios and is suitable for power plants, petrochemical industry, metallurgy, high-rise residential buildings, telecommunications, light industry, commercial centers, airports and other places where reliability is required.

[0003] The drawer is an important part of the drawer type MNS low voltage switch cabinet, and its main function is to protect electrical components, isolate circuits, split currents and facilitate maintenance and replacement. The drawer can be easily pulled out of the cabinet body for maintenance and replacement without stopping the entire switch cabinet. At present, when detecting the function of the drawer in the drawer type MNS low voltage switch cabinet, the drawer needs to be inserted into the low voltage switch cabinet, and one person operates and observes the drawer panel, and the other person measures the signal of the terminal at the back of the low voltage switch cabinet using a digital multimeter (such as on-off detection, voltage parameter measurement; manually supplying power to test the effective action of electrical components, and testing whether the function of the drawer meets the technical requirements). This drawer function detection method requires two people to cooperate, which has the problems of high labor cost and low debugging efficiency. When quality defects are found in the drawer function during detection, the drawer needs to be pulled out of the low voltage switch cabinet for rectification, and after rectification, the drawer needs to be inserted into the low voltage switch cabinet again for function detection, resulting in low efficiency of quality defect rectification. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a low voltage switch cabinet drawer function test device to solve the problems of high labor cost, low debugging efficiency and low quality defect rectification efficiency of the traditional drawer function detection method.

[0005] The utility model discloses a low -voltage switchgear drawer function detection test device, including first DC power supply, second DC power supply, terminal row, a plurality of pilot lamp, the first switch and the second switch of association and connector, the positive output of first DC power supply and negative output are connected with the first terminal and the second terminal of terminal row respectively, the positive output of second DC power supply is connected with the fifth terminal and the twelfth terminal of terminal row, the first end of first switch, the negative output of second DC power supply is connected with the first end of each pilot lamp, the first end of second switch, and the second end of each pilot lamp, the second end of first switch and second switch are connected with different terminal of terminal row respectively, terminal row is connected with connector, and the connector is used for with the secondary connector of measured drawer matching connection.

[0006] Further, the first DC power supply is 110V DC power supply, and the second DC power supply is 24V DC power supply.

[0007] Further, the first switch and the second switch are buttons.

[0008] Further, the colors of the pilot lamps are different, and the number of the pilot lamps matches the number of breaker states of the measured drawer.

[0009] Further, the number of the pilot lamps is 6, and the breaker states include breaker closed position, breaker open position, breaker fault, breaker working, fire-fighting closed position and fire-fighting open position.

[0010] Further, a first DC breaker is arranged at the output of the first DC power supply, and a second DC breaker is arranged at the output of the second DC power supply.

[0011] Further, the input of the second DC power supply is connected with an AC power supply through a third breaker, and the zero line of the AC power supply is connected with the terminal of the terminal row.

[0012] Further, the device further includes a shell and a panel arranged on the shell, the first DC power supply, the second DC power supply and the terminal row are arranged in the shell, each pilot lamp, the first switch and the second switch are arranged on the panel, and the connector is located outside the shell.

[0013] Advantages

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model provides a low -voltage switchgear drawer function test test device, through its connector (female head) with low -voltage switchgear's drawer's secondary connector (male head) connection, realized reliable connection during detection, and one test personnel can operate the electrical element and observation device panel's pilot lamp state of drawer panel simultaneously, and only through observation device panel's pilot lamp state can obtain the current position state of circuit breaker, need not utilize multimeter measurement on-off, greatly reduced manpower cost, improved detection efficiency and the visualization degree of detection result,

[0016] Through the point first switch and second switch simulate circuit breaker split excitation tripping signal, reach circuit breaker split excitation tripping function's detection, compared with traditional detection utilizes two electric wires test circuit breaker split excitation tripping function, the utility model is convenient to operate, safe and reliable, more intuitive,

[0017] The utility model discloses compact structure, low in cost, small, convenient to carry, simple operation. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing only is an embodiment of the utility model, for the ordinary skill in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0019] Figure 1 It is the circuit schematic diagram of low -voltage switchgear drawer function test test device in the utility model embodiment. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model is clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0021] The technical scheme of the present application will be described in detail below with specific examples. The following several specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0022] As Figure 1As shown, the low-voltage switch cabinet drawer function test device provided by the embodiment of the utility model includes a first DC power supply, a second DC power supply, a terminal block XT101, a plurality of indicator lights, a first switch and a second switch associated and a connector; the positive output end and the negative output end of the first DC power supply are connected with the first terminal 1 and the second terminal 2 of the terminal block XT101 respectively, the positive output end of the second DC power supply is connected with the fifth terminal 5 and the twelfth terminal 12 of the terminal block XT101 and the first end of the first switch, the negative output end of the second DC power supply is connected with the first end of each indicator light and the first end of the second switch, the second end of each indicator light, the second end of the first switch and the second end of the second switch are connected with different terminals of the terminal block XT101 respectively; the terminal block XT101 is connected with the connector, and the connector is used for matching connection with the secondary connector of the drawer under test, that is, each output signal of the connector (female head) matches each output signal of the secondary connector (male head) of the drawer under test, and each output signal of the connector is the signal of each terminal of the terminal block XT101.

[0023] The first DC power supply provides DC power supply for the multifunctional instrument of the drawer under test through the first terminal 1 and the second terminal 2 of the terminal block XT101; the second DC power supply is used for power supply for each indicator light, the first switch and the second switch. When the electrical element of the drawer panel under test is operated, the current position of the circuit breaker of the drawer under test is known through the state of each indicator light, without using a multimeter to measure on-off, so that the labor cost is greatly reduced, and the detection efficiency and the visualization degree of the detection result are improved.

[0024] Under actual working conditions, the fire-fighting system outputs the circuit breaker split excitation tripping signal under certain conditions, so as to achieve the purpose of opening the circuit breaker split excitation tripping. During debugging, the output signal of the fire-fighting system is simulated by closing the first switch and the second switch, so as to simulate and test the circuit breaker split excitation tripping function; compared with the traditional detection of testing the circuit breaker split excitation tripping function by using two wires, the utility model is convenient, safe and reliable, and more intuitive. Through the utility model, various active signals or passive signals of each electrical element in the drawer can be detected.

[0025] In the specific embodiment of the utility model, the first DC power supply is a 110V DC power supply, and the second DC power supply is a 24V DC power supply.

[0026] In the specific embodiment of the utility model, the first switch and the second switch are both button SB, and the first switch and the second switch correspond to the terminal 13 and the terminal 14 of the terminal block XT101 respectively.

[0027] In the specific embodiment of the utility model, the color of each indicator light is different, and the number of the indicator lights matches the number of the circuit breaker states of the drawer under test.

[0028] Exemplarily, the number of the indicator lights is 6 (6 indicator lights correspond to terminals 6-11 of the terminal row XT101), and the circuit breaker states include a circuit breaker closed position (corresponding to a green indicator light GN1), a circuit breaker open position (corresponding to a red indicator light RD1), a circuit breaker fault (corresponding to an orange indicator light YW), a circuit breaker working (corresponding to a green indicator light GN2), a fire alarm closed position (corresponding to a green indicator light GN3), and a fire alarm open position (corresponding to a red indicator light RD2). When a circuit breaker handle in a drawer is manually operated, the state of the corresponding indicator light changes, and the current position state of the circuit breaker can be known by observing the state of each indicator light, without the need to measure the on-off state with a multimeter.

[0029] In the specific embodiment of the utility model, the output end of the first direct current power supply is provided with a first direct current circuit breaker QF1, and the output end of the second direct current power supply is provided with a second direct current circuit breaker QF2, which plays a short circuit, overload or under voltage protection role.

[0030] In the specific embodiment of the utility model, the input end of the second direct current power supply is connected with an alternating current power supply through a third circuit breaker QF3, and the zero line N of the alternating current power supply is connected with the terminal of the terminal row XT101.

[0031] In the specific embodiment of the utility model, the device further comprises a shell and a panel arranged on the shell, the first direct current power supply, the second direct current power supply and the terminal row are arranged in the shell, each indicator light, the first switch and the second switch are arranged on the panel, and the connector is located outside the shell. The terminal row XT101 plays a signal transition role of connecting internal components and the connector of the shell, the shell plays a protection role, and the panel is convenient to operate.

[0032] The utility model discloses compact structure, low in cost, small, convenient to carry, easy operation, in the drawer assembly area can use the utility model to carry out drawer debugging, when discovering quality defect, disconnects power supply, can handle the defect of electrical components in the drawer, reduces the repeated action of the drawer insertion and extraction, and great improvement production efficiency has been achieved.

[0033] The above disclosed is only the specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the change or modification in the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A low-voltage switch cabinet drawer function detection test device, characterized in that: The test device includes a first DC power supply, a second DC power supply, a terminal block, multiple indicator lights, associated first and second switches, and a connector; the positive output end and negative output end of the first DC power supply are respectively connected to the first terminal and the second terminal of the terminal block, the positive output end of the second DC power supply is connected to the fifth terminal and the twelfth terminal of the terminal block and the first end of the first switch, the negative output end of the second DC power supply is connected to the first end of each indicator light and the first end of the second switch, and the second end of each indicator light and the second end of the first switch are respectively connected to different terminals of the terminal block; the terminal block is connected to the connector, and the connector is used to mate and connect with the secondary connector of the drawer under test.

2. The low-voltage switch cabinet drawer function detection test device according to claim 1 is characterized in that: The first DC power supply is a 110V DC power supply, and the second DC power supply is a 24V DC power supply.

3. The low-voltage switch cabinet drawer function detection test device according to claim 1 is characterized in that: The first switch and the second switch are both buttons.

4. The low-voltage switch cabinet drawer function detection test device according to claim 1 is characterized in that: Each indicator light has a different color, and the number of the indicator lights matches the number of circuit breaker states of the drawer being tested.

5. The low-voltage switch cabinet drawer function detection test device according to claim 4 is characterized in that: The number of the indicator lights is 6, and the circuit breaker status includes circuit breaker closed position, circuit breaker open position, circuit breaker fault, circuit breaker working, fire protection closed position and fire protection open position.

6. The low-voltage switch cabinet drawer function detection test device according to any one of claims 1 to 5, characterized in that: A first DC circuit breaker is provided at the output end of the first DC power supply, and a second DC circuit breaker is provided at the output end of the second DC power supply.

7. The low-voltage switch cabinet drawer function detection test device according to claim 6 is characterized in that: An input end of the second DC power supply is connected to an AC power supply through a third circuit breaker, and a neutral line of the AC power supply is connected to a terminal of the terminal block.

8. The low-voltage switch cabinet drawer function detection test device according to any one of claims 1 to 5, characterized in that: The device also includes a shell and a panel arranged on the shell, the first DC power supply, the second DC power supply and the terminal block are arranged in the shell, the indicator lights, the first switch and the second switch are arranged on the panel, and the connector is located outside the shell.

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