CN209247940U - A test device for secondary line inspection of current and voltage loops - Google Patents

Abstract

The utility model provides a test device for checking the secondary line of the current and voltage loop, which includes a box body, and four batteries and switches connected in series through wires are arranged in the box, wherein one battery negative electrode leads to the terminal U, and the other three batteries are connected in series. The positive pole of the battery leads to terminal A, terminal B, and terminal C respectively, and the switch is set on terminal U, and voltmeters with different ranges are respectively set between terminal U, terminal A, terminal B, and terminal C, When in use, disconnect the power supply of the monitoring device of the current and voltage loops, connect the roots of the secondary cables that need to be checked to the corresponding terminals on the box according to the actual configuration of the secondary lines of the current and voltage loops on site, and connect them to the analog quantity of the monitoring device. Use a multimeter to measure the corresponding cable voltage at the board plug-in in turn. Through different voltage levels and refer to the voltmeter reading on the box, you can check whether the corresponding secondary line of the circuit is correct and intact.

Description

A test device for secondary line inspection of current and voltage loops

technical field

The utility model belongs to the technical field of line detection, in particular to a test device for secondary line inspection of current and voltage loops.

Background technique

Usually, the current and voltage loop secondary lines in some areas of outdoor substations or power plant production sites are limited by factors such as special installation locations, small on-site work spaces, high-altitude operations, lack of maintenance power supplies, and inconvenient use of test instruments. The online verification work brings great inconvenience.

Contents of the invention

The utility model provides a test device for the inspection of the secondary line of the current and voltage circuit, which can make the inspection of the current and voltage circuit secondary lines of the production site in the outdoor complex environment safe, convenient and efficient, and avoid the on-site inspection of the traditional test device. Difficult to use, heavy work tasks and other disadvantages, it is a very cost-effective practical line checking device.

The technical scheme of the utility model is: a test device for checking the secondary line of the current and voltage circuit, including a box body, and four batteries and switches connected in series through wires are arranged in the box body, and the batteries are respectively the first 1 battery, the 2nd battery, the 3rd battery, and the 4th battery; Connecting terminal A, connecting terminal B and connecting terminal C are drawn out, and the switch is set on the connecting terminal U drawn from the negative pole of the first battery, and the connecting terminal U and connecting terminal A, connecting terminal B and connecting terminal C are respectively A voltmeter A with a range of 3V, a voltmeter B with a range of 4.5V, and a voltmeter C with a range of 6V are provided.

Further in the solution, the box is an insulating box.

The steps when the utility model is used include: disconnecting the power supply of the monitoring device of the current and voltage loops; connecting the roots of the secondary cables that need to be checked to the corresponding terminals on the box according to the actual secondary line configuration of the current and voltage loops on site U, terminal A, terminal B, and terminal C; at the terminal of the secondary cable, that is, at the plug-in of the analog quantity backplane of the monitoring device, use a multimeter to measure the corresponding cable voltage in turn, pass through different voltage levels and refer to the box body The reading of the voltmeter can verify whether the corresponding secondary line of the circuit is correct and intact.

The utility model has the advantages that: the utility model solves the disadvantages of difficulty in checking the secondary line of the current and voltage loops of outdoor equipment and low efficiency due to the lack of power supply for outdoor on-site maintenance, bulky and inconvenient use of maintenance test instruments, narrow working space, and many dangerous sources .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among them: 1. Box, 2. Battery, 3. Wire, 4. Terminal U, 5. Terminal A, 6. Voltmeter A, 7. Voltmeter B, 8. Terminal B, 9. Voltmeter C , 10, terminal C, 11, switch.

Detailed ways

The utility model will be clearly and completely described below in conjunction with the accompanying drawings, so that those skilled in the art can fully implement the utility model without creative work.

The specific embodiment of the present utility model is: as shown in Figure 1, a kind of test device for the secondary line inspection of the current and voltage circuit, comprises a box body 1, and four sections are arranged in the box body 1 and are connected in series by wires 3 The battery 2 and the switch 11, the batteries 2 are the first battery, the second battery, the third battery, and the fourth battery, the first battery negative terminal U4, the second battery The positive poles of the battery, the third battery, and the fourth battery respectively lead to terminal A5, terminal B8, and terminal C10, and the switch 11 is arranged on the terminal U4 leading to the negative pole of the first battery, and the terminal U4 A voltmeter A6 with a range of 3V, a voltmeter B7 with a range of 4.5V, and a voltmeter C9 with a range of 6V are respectively provided between the connection terminal A5, the connection terminal B8 and the connection terminal C10.

Further, the box 1 is an insulating box.

The specific implementation steps of the utility model include: disconnecting the power supply of the monitoring device of the current and voltage loops; connecting the roots of the secondary cables that need to be checked to the corresponding terminals on the box body 1 in sequence according to the actual secondary line configuration of the current and voltage loops on site U4, terminal A5, terminal B8, and terminal C10; at the terminal of the secondary cable, that is, at the plug-in of the analog quantity backplane of the monitoring device, use a multimeter to measure the corresponding cable voltage in sequence, pass through different voltage levels and refer to box 1 The reading of the voltmeter on the battery can verify whether the corresponding secondary line of the circuit is correct and intact.

The preferred embodiments of the present utility model have been described above, and it should be pointed out that the present utility model is not limited to the above-mentioned specific implementation, and the equipment and structures that are not described in detail should be understood as using common methods in the art. Implementation; any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model by any person familiar with the art, without departing from the scope of the utility model technical solution, still belong to the utility model within the scope of technical protection.

Claims (2)

1. a kind of experimental rig for the secondary ray examination in Current Voltage circuit, which is characterized in that including cabinet, in the cabinet Battery, the switch that four sections are connected in series with each other by conducting wire are set, and the battery is respectively Section 1 battery, Section 2 battery, the 3rd Batteries, Section 4 battery, Section 1 battery cathode draw connecting terminal U, Section 2 battery, Section 3 battery, Section 4 The anode of battery draws connecting terminal A, connecting terminal B, connecting terminal C respectively, and the switch setting is drawn in Section 1 battery cathode On connecting terminal U out, range the connecting terminal U and connecting terminal A, connecting terminal B, is respectively equipped between connecting terminal C The voltmeter C of voltmeter B, 6V of voltmeter A, 4.5V of 3V.

2. a kind of experimental rig for the secondary ray examination in Current Voltage circuit according to claim 1, which is characterized in that The cabinet is insulation box.