Portable secondary cable checking instrument

Abstract

The utility model discloses a portable secondary cable checking instrument. The portable secondary cable checking instrument comprises a host computer and a slave computer, the host computer and the slave computer are respectively connected to two sides of a secondary cable to be tested; the host comprises a power supply, a power switch, a host light emitting diode, a host secondary cable binding post and a first common binding post; the cathode of the power supply is connected with the first common binding post, and the anode of the power supply is connected with the power switch. The first common binding post is connected with one end of the first test wire, and the other end of the first test wire is connected with the first grounding copper bar. The slave comprises a plurality of slave branches which are connected in parallel and a second common binding post, and the slave branches are the same in structure; each slave branch comprises a slave secondary cable binding post and a slave light emitting diode; and one end of each slave branch is connected with one end of the to-be-tested secondary cable, and the other end of each slave branch is connected with the second common binding post.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electrical technology field, especially, relate to a portable secondary cable alignment instrument. BACKGROUND

[0002] Secondary cable alignment is an indispensable link in substation secondary circuit maintenance, especially in infrastructure engineering or large-scale technical transformation engineering construction, the workload of secondary cable alignment is very large.

[0003] In the related art, two operating personnel are generally required for substation secondary cable alignment work, and are located at two sides of the secondary cable and communicate through a intercom. One operating personnel connects the one-core cable at one end of the secondary cable to the grounding copper bar after sleeving the number tube, and the other operating personnel sets the multimeter to the on-off file, contacts the grounding copper bar with the black meter pen, and touches each core line of the secondary cable to be checked with the red meter pen one by one. If the multimeter emits a buzzing sound, it indicates that the loop is on, and the two ends of the core line have been matched, and the corresponding number tube is sleeved. The core line checking is completed. Then, the other core lines of the secondary cable are checked in turn according to the above method. However, in a noisy environment, the buzzing sound of the multimeter is difficult to hear, which will cause repeated checking of the core line and reduce the checking efficiency. Secondly, the meter pen of the multimeter is needle type, which cannot effectively fix the core line and the grounding copper bar. In addition, for N-core cable checking, the multimeter needs to be measured N(N-1) / 2 times, which is a large workload and is prone to errors. The repeated alignment will also lead to a decrease in alignment accuracy, which will cause wiring errors, resulting in serious consequences such as open circuit of current loop and short circuit of voltage loop after the equipment is put into operation. At the same time, the long secondary cable alignment time will squeeze the time of secondary cable access and secondary equipment debugging.

[0004] Therefore, how to improve the operation efficiency and accuracy of secondary cable alignment is the focus of the technical personnel in the field. UTILITY MODEL CONTENTS

[0005] To solve the problems in the prior art, the utility model provides a portable secondary cable alignment instrument, which improves the operation efficiency and accuracy of secondary cable alignment.

[0006] To achieve the purpose of the utility model, the utility model adopts the following technical scheme: a portable secondary cable alignment instrument, comprising: a host computer and a slave computer; the host computer and the slave computer are connected to two sides of the secondary cable to be measured respectively;

[0007] The host comprises: a power supply, a power switch, a host light emitting diode, a host secondary cable terminal post, and a first common terminal post; wherein the negative pole of the power supply is connected with the first common terminal post, the positive pole of the power supply is connected with the power switch; one end of the first common terminal post is connected with a first test wire, the other end of the first test wire is connected with a first grounding copper bar; the power switch, the host light emitting diode, and the host secondary cable terminal post are connected in series one by one; the host secondary cable terminal post is connected with one end of a test test wire, the other end of the test test wire is connected with one end of the secondary cable to be tested;

[0008] The slave machine comprises: a plurality of slave machine branches in parallel with each other, and a second common terminal post, each of the slave machine branches has the same structure; each of the slave machine branches comprises: a slave machine secondary cable terminal post and a slave machine light emitting diode; one end of each of the slave machine branches is connected with one end of the secondary cable to be tested, and the other end of each of the slave machine branches is connected with the second common terminal post; the second common terminal post is connected with one end of a second test wire, and the other end of the second test wire is connected with a second grounding copper bar, so that the host machine and the slave machine are connected through ground wires.

[0009] Optionally, the first common terminal post and the second common terminal post are both banana socket type terminal posts, and the first test wire and the second test wire are both banana plug to crocodile clip type test wires; one end of the test wire is matched with the common terminal post, and the other end of the test wire is tightly connected with the grounding copper bar.

[0010] Optionally, the host secondary cable terminal post is a banana socket type terminal post, and the test test wire is a banana plug to crocodile clip type test wire; one end of the test test wire is matched with the host secondary cable terminal post, and the other end of the test test wire is tightly connected with the core of the secondary cable to be tested.

[0011] Optionally, the slave machine secondary cable terminal post is a quick terminal post row.

[0012] Optionally, the host is arranged in a host box, and the slave machine is arranged in a slave machine box.

[0013] Optionally, the host secondary cable terminal post, the first common terminal post, the host light emitting diode, and the power switch are arranged on the upper surface of the host box; each of the slave machine secondary cable terminal posts is arranged in the slave machine box, and the slave machine light emitting diode and the second common terminal post are arranged on the upper surface of the slave machine box.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The host and the slave are connected to two sides of the secondary cable to be tested respectively, the host contains power supply and the like, and the slave contains multiple branches, so that 1-to-N line checking mode is realized, and the number of repetitions is reduced, for example, 10 cables are checked, and 64% of time is saved compared with the traditional mode. The host checks the cores one by one, the slave does not need to be operated, the line checking result is accurate and intuitive, the corresponding situation of the cores is judged through the light emitting diode, and the efficiency and accuracy of operation are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A circuit schematic diagram of a portable secondary cable line checking instrument provided by the embodiment of the application;

[0017] Figure 2 A structure schematic diagram of a portable secondary cable line checking instrument provided by the embodiment of the application;

[0018] In the figure: host 1, power supply 11, first common terminal post 12, first test line 13, first grounding copper bar 14, power switch 15, host light emitting diode 16, host secondary cable terminal post 17, test test line 18, host box 19, secondary cable to be tested 3, slave 2, slave branch 21, slave secondary cable terminal post 22, slave light emitting diode 23, second common terminal post 24, second test line 25, second grounding copper bar 26, slave box 27. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiment of the application will be described clearly and completely below with reference to the drawings in the embodiment of the application:

[0020] Please refer to Figure 1 , Figure 1 A circuit schematic diagram of a portable secondary cable line checking instrument provided by the embodiment of the application.

[0021] Please refer to Figure 2 , Figure 2 A structure schematic diagram of a portable secondary cable line checking instrument provided by the embodiment of the application.

[0022] In the embodiment, the device can include:

[0023] The host 1 and the slave 2;

[0024] The host 1 and the slave 2 are connected to two sides of the secondary cable to be tested 3 respectively;

[0025] The host 1 comprises: a power supply 11, a power switch 15, a host light emitting diode 16, a host secondary cable terminal post 17, a first common terminal post 12; wherein the negative pole of the power supply 11 is connected with the first common terminal post 12, the positive pole of the power supply 11 is connected with the power switch 15; the first common terminal post 12 is connected with one end of a first test line 13, the other end of the first test line 13 is connected with a first grounding copper bar 14; the power switch 15, the host light emitting diode 16, and the host secondary cable terminal post 17 are connected in series one by one; the host secondary cable terminal post 17 is connected with one end of a test test line 18, the other end of the test test line 18 is connected with one end of a secondary cable 3 to be tested;

[0026] The slave 2 comprises: a plurality of slave branches 21 connected in parallel with each other, and a second common terminal post 24, each of the slave branches 21 is of the same structure; each of the slave branches 21 comprises: a slave secondary cable terminal post 22 and a slave light emitting diode 23; one end of each of the slave branches 21 is connected with one end of the secondary cable 3 to be tested, and the other end of each of the slave branches 21 is connected with the second common terminal post 24; the second common terminal post 24 is connected with one end of a second test line 25, and the other end of the second test line 25 is connected with a second grounding copper bar 26, so that the host 1 and the slave 2 are connected through the ground wire.

[0027] As shown in Figure 1 The portable secondary cable calibration instrument of the embodiment comprises the host 1 and the slave 2, one end of the host 1 and the slave 2 is respectively connected at two ends of the secondary cable 3 to be tested, and the other end is connected with the grounding wire, since the ground is equipotential, a loop is formed.

[0028] When the secondary cable calibration work is performed, first, the first test line 13 and the second test line 25 of the host 1 and the slave 2 are respectively connected with the grounding copper bar, then all the core lines of one end of the secondary cable 3 to be tested are sleeved with number tubes and connected with the slave 2 through the quick terminal, each cable core corresponds to one of the slave branches 21. At the other end of the cable, any core line of the other end of the secondary cable 3 to be tested is connected with the test test line 18 of the host 1, the power switch 15 is turned on, if the host light emitting diode 16 of the host 1 is bright, it indicates that the loop is connected, then according to the light emitting condition of the slave light emitting diode 23 of the slave 2, it is judged which of the slave branches 21 corresponds to. For example, if the second slave light emitting diode 23 of the slave 2 is bright, it indicates that the cable core on the host 1 and the cable on the second slave branch 21 are the same core, and the corresponding cable number tube is sleeved. The next core is checked in turn, during the checking process, the slave 2 is always not operated, the host 1 is checked one by one, and the total checking times are N times. Each core line only needs to be checked once, so that the calibration work is completed, the calibration workload is reduced, and the calibration efficiency is improved.

[0029] It can be seen that the host 1 and the slave 2 are connected to two sides of the secondary cable 3 to be tested respectively, the host 1 comprises a power supply 11 and the like, and the slave 2 comprises a plurality of branches, so that the 1-to-N line checking mode is realized, the number of repetitions is reduced, and for example, the line checking of 10 cables saves 64% of time compared with the traditional mode. The host 1 checks the cores one by one, and the slave 2 does not need to be operated, the line checking result is accurate and intuitive, the corresponding situation of the core is judged through the light-emitting diode, and the efficiency and accuracy of the operation are greatly improved.

[0030] Optionally, the first common terminal post 12 and the second common terminal post 24 are banana socket terminal posts, and the first test line 13 and the second test line 25 are banana plug to crocodile clip type test lines; one end of the test line is matched with the common terminal post, and the other end of the test line is tightly connected with the grounding copper bar.

[0031] Optionally, the first common terminal post 12 and the second common terminal post 24 are banana socket terminal posts, and the first test line 13 and the second test line 25 are banana plug to crocodile clip type test lines; one end of the test line is matched with the common terminal post, and the other end of the test line is tightly connected with the grounding copper bar.

[0032] Optionally, the host secondary cable terminal post 17 is a banana socket terminal post, and the test test line 18 is a banana plug to crocodile clip type test line; one end of the test test line 18 is matched with the host secondary cable terminal post 17, and the other end of the test test line 18 is tightly connected with the core of the secondary cable 3 to be tested.

[0033] Optionally, the host secondary cable terminal post 17 is a banana socket terminal post, and the test test line 18 is a banana plug to crocodile clip type test line; one end of the test test line 18 is matched with the host secondary cable terminal post 17, and the other end of the test test line 18 is tightly connected with the core of the secondary cable 3 to be tested.

[0034] Optionally, the slave secondary cable terminal post 22 is a quick terminal post row.

[0035] The slave secondary cable wiring post 22 is a fast wiring terminal row. This design can quickly realize the access of the secondary cable core and can avoid the short circuit of the secondary cable core. It can be seen that the speed of the slave 2 to access the cable core is improved, and the preparation time of the calibration line is saved. At the same time, the core short circuit is avoided, the risk of equipment damage and calibration error caused by short circuit is reduced, and the safety and accuracy of calibration are improved.

[0036] Optionally, the host 1 is arranged in the host box 19, and the slave 2 is arranged in the slave box 27.

[0037] The host 1 is arranged in the host box 19, and the slave 2 is arranged in the slave box 27. In this way, the host 1 and the slave 2 are physically isolated and protected. It can be seen that it is convenient to carry and store, and the circuit elements inside the host 1 and the slave 2 are protected from the external environment, such as dust and collision. The service life and reliability of the instrument are improved, and it is convenient to use in different working places.

[0038] Optionally, the host secondary cable wiring post 17, the first common wiring post 12, the host light-emitting diode 16, and the power switch 15 are arranged on the upper surface of the host box 19; each slave secondary cable wiring post 22 is arranged in the slave box 27, and the slave light-emitting diode 23 and the second common wiring post 24 are arranged on the upper surface of the slave box 27.

[0039] The host secondary cable wiring post 17, the first common wiring post 12, the host light-emitting diode 16, and the power switch 15 are arranged on the upper surface of the host box 19; each slave secondary cable wiring post 22 is arranged in the slave box 27, and the slave light-emitting diode 23 and the second common wiring post 24 are arranged on the upper surface of the slave box 27. This layout design is convenient to operate and observe. It can be seen that the operator can conveniently perform wiring, switch operation, and observe the state of the light-emitting diode, thereby improving the convenience and efficiency of operation. At the same time, the reasonable layout also makes the instrument more beautiful and easy to use.

[0040] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A portable secondary cable alignment instrument, characterized in that, The utility model relates to a kind of secondary cable test device, including: Host and slave machine; The host and the slave machine are connected to the two sides of the secondary cable to be measured respectively; The host, including: power supply, power switch, host light emitting diode, host secondary cable terminal post, first common terminal post;Wherein, the negative pole of the power supply is connected with first common terminal post, the positive pole of the power supply is connected with the power switch;The first common terminal post is connected with one end of first test line, and the other end of the first test line is connected to first ground copper bar;The power switch, the host light emitting diode, the host secondary cable terminal post are connected in series one by one;The host secondary cable terminal post is connected with one end of test test line, and the other end of the test test line is connected to one end of the secondary cable to be measured; The slave machine, including: a plurality of slave machine branches parallel to each other, second common terminal post, each slave machine branch structure is same;Each of the slave machine branch includes: slave machine secondary cable terminal post, slave machine light emitting diode;One end of each of the slave machine branch is connected with one end of the secondary cable to be measured, and the other end of each of the slave machine branch is connected with the second common terminal post;The second common terminal post is connected with one end of second test line, and the other end of the second test line is connected to second ground copper bar, so that the host and the slave machine are communicated through ground wire.

2. The portable secondary cable alignment tool of claim 1, wherein, The first common terminal post and the second common terminal post are both banana socket type terminal post, and the first test line and the second test line are both banana plug to crocodile clamp type test line;One end of test line is matched with common terminal post, and the other end of test line is tightly connected with ground copper bar.

3. The portable secondary cable alignment tool of claim 2, wherein, The host secondary cable terminal post is banana socket type terminal post, and the test test line is banana plug to crocodile clamp type test line;One end of the test test line is matched with the host secondary cable terminal post, and the other end of the test test line is tightly connected with the core of the secondary cable to be measured.

4. The portable secondary cable alignment tool of claim 3, wherein, The slave machine secondary cable terminal post is quick terminal post row.

5. The portable secondary cable alignment tool of claim 4, wherein, The host is arranged in host box, and the slave machine is arranged in slave machine box.

6. The portable secondary cable alignment tool of claim 5, wherein, The host secondary cable terminal post, the first common terminal post, the host light emitting diode and the power switch are arranged on the upper surface of the host box;Each of the slave machine secondary cable terminal post is arranged in the slave machine box, and the slave machine light emitting diode and the second common terminal post are arranged on the upper surface of the slave machine box.

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