CN213482405U - A divide and present electric leakage experiment detection device for feed switch - Google Patents
A divide and present electric leakage experiment detection device for feed switch Download PDFInfo
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- CN213482405U CN213482405U CN202022626312.7U CN202022626312U CN213482405U CN 213482405 U CN213482405 U CN 213482405U CN 202022626312 U CN202022626312 U CN 202022626312U CN 213482405 U CN213482405 U CN 213482405U
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- feed switch
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Abstract
The utility model discloses a divide and present electric leakage experiment detection device for feed switch, including the finder, first inspection wire and second inspection wire, the top fixed mounting of finder has first joint, and the inside fixed mounting of first joint has first contact, and the top fixed mounting of finder has the second to connect, and the inside fixed mounting that the second connects has the second contact, and the top fixed mounting of finder has the pilot lamp, and the one end fixed mounting of first inspection wire has first cap of touching, and the one end electric connection that first inspection wire kept away from first cap of touching has first wire. The device can be tested by being connected in parallel at the three-phase power supply side of the feed switch, if the feed switch does not trip in the sub-feed leakage test, the feed switch can be kept in a trip state only by replacing the two outlet terminals of the primary end or the secondary end of the zero-sequence voltage transformer, the feed switch does not need to be replaced underground, the normal operation of equipment is guaranteed, and the normal operation of the equipment is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of power equipment, concretely relates to divide and present electric leakage experiment detection device for feed switch.
Background
The other is an incoming line loop, which has outgoing lines to each branch cabinet. For example, the high voltage has two incoming lines, four transformer outgoing lines, the cabinet connected with two buses from the power supply office is called incoming line, the cabinet of the transformer outgoing lines is called feeder line, and the like of a metering cabinet and a PT cabinet, wherein the feeder switch is a switch arranged in the cabinet of the transformer outgoing lines and is used for controlling the feeding of the outgoing lines.
When the existing mining feed switch is used in a separate feed leakage test in a maintenance plant, the switch cannot be tripped, and a worker can only observe the change of zero-sequence voltage and zero-sequence current in a protector menu to judge whether the selective leakage test is reliable and normal, but the mode is inaccurate, so that the state of the feed switch cannot be accurately judged, and sometimes when the worker uses the switch underground, the worker needs to replace two outlet terminals of a primary end or a secondary end of a zero-sequence voltage transformer again to use the switch, and great trouble is brought to the underground electrician.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a branch is presented and is leaked electric experiment detection device for feed switch, in order to solve and to propose among the above-mentioned background art that present a branch is presented and is leaked electric detection mode in the use, because when doing branch and present leakage test at the machine maintenance factory, the switch can not act the tripping operation all, the staff can only observe the change of zero sequence voltage and zero sequence current in the protector menu, judge whether reliable normal of selective leakage test with this method, but this kind of mode is very inaccurate, thereby lead to the staff when using in the pit, still need again to change the position to just can use zero sequence voltage transformer's primary or two outlet terminals of secondary, bring very big vexed problem for electrician in the pit.
In order to achieve the above object, the utility model provides a following technical scheme: a branch feeder leakage experiment detection device for a feed switch comprises a checker, a first inspection wire and a second inspection wire, wherein a first joint is fixedly arranged at the top of the checker, a first contact is fixedly arranged in the first joint, a second joint is fixedly arranged at the top of the checker, a second contact is fixedly arranged in the second joint, an indicator lamp is fixedly arranged at the top of the checker, a first contact cap is fixedly arranged at one end of the first inspection wire, one end, far away from the first contact cap, of the first inspection wire is electrically connected with the first wire, one end, far away from the first contact cap, of the first wire is connected with a plug, one end, far away from the first contact cap, of the first inspection wire is electrically connected with a second wire, one end, far away from the first contact cap, of the second wire is connected with an electric clamp, one end, fixed mounting of the second inspection wire is provided with a second contact cap, and one end of the second inspection lead, which is far away from the second contact cap, is connected with an electricity-connecting ring.
Preferably, the specification size of the first contact cap is matched with the specification size of the first connector, and the specification size of the first contact cap is matched with the specification size of the first contact.
Preferably, the number of the second inspection leads is three, the number of the second contacts is three, the specification size of the second contact cap is matched with the specification size of the second contact, and the specification size of the second contact cap is matched with the specification size of the second contact.
Preferably, the number of the indicator lights is three, and the positions of the three indicator lights correspond to the positions of the three second connectors.
Preferably, the both sides of checker are all fixed mounting have a fixing base, the inside of fixing base has been seted up the mounting hole.
Preferably, the back of the checker is fixedly provided with a signboard.
Compared with the prior art, the beneficial effects of the utility model are that:
the testing device can realize the sub-feed leakage test of the feed switch on the ground, the testing device is only required to be connected in parallel at the power supply side of the feed switch and is equivalent to a leakage compensation device, the device is modified by a resistance-capacitance absorption device in the switch, the method is simple, the operation is convenient, the testing can be carried out only by connecting the device in parallel at the three-phase power supply side of the feed switch, if the feed switch does not trip in the sub-feed leakage test, the feed switch can be kept in a trip state only by changing the positions of two wire outlet heads at the primary end or the secondary end of the zero sequence voltage transformer, the worker does not need to switch down and down in the well, the normal operation of the equipment is ensured, the smooth work of the electrician in the well is ensured, the accident of the electrical equipment is reduced, the damage of the equipment is avoided, the normal operation of the equipment is ensured, and the cost is reduced, the benefit is increased.
Drawings
Fig. 1 is a schematic view of the three-dimensional appearance structure of the present invention;
FIG. 2 is a schematic view of the three-dimensional appearance structure of the checker of the present invention;
fig. 3 is a schematic view of a three-dimensional appearance structure of a first inspection lead according to the present invention;
fig. 4 is a schematic view of a three-dimensional appearance structure of a second inspection lead of the present invention;
fig. 5 is a schematic diagram of the internal circuit structure of the checker according to the present invention.
In the figure: 1. a checker; 2. an indicator light; 3. a second joint; 4. a first joint; 5. a fixed seat; 6. mounting holes; 7. a first inspection wire; 8. a first touch cap; 9. a second conductive line; 10. a first conductive line; 11. a plug; 12. an electric clamp; 13. a second inspection wire; 14. an electrical loop; 15. a second touch cap; 16. a signboard; 17. a second contact; 18. a first contact.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a separate feed leakage experiment detection device for a feed switch comprises a checker 1, a first check lead 7 and a second check lead 13, wherein a first joint 4 is fixedly installed at the top of the checker 1, a first contact 18 is fixedly installed inside the first joint 4, a second joint 3 is fixedly installed at the top of the checker 1, a second contact 17 is fixedly installed inside the second joint 3, an indicator lamp 2 is fixedly installed at the top of the checker 1, a first contact cap 8 is fixedly installed at one end of the first check lead 7, a first lead 10 is electrically connected to one end of the first check lead 7, which is far away from the first contact cap 8, a plug 11 is connected to one end of the first lead 10, which is far away from the first contact cap 8, a second lead 9 is electrically connected to one end of the second lead 9, which is far away from the first contact cap 8, an electric clamp 12 is connected to one end of the second check lead 13, a second contact cap 15 is fixedly installed at one end of the second check lead 13, an electrical ring 14 is connected to the end of the second test line 13 remote from the second contact cap 15.
In this embodiment, six resistors are arranged inside the tester 1, the six resistors are divided into three groups, the three groups of resistors are connected in parallel, the two resistors in each group are connected in series, the outer side of one of the two resistors in each group is connected in parallel with a capacitor, the main circuit is grounded, actually, a ground capacitance is added in each group of analog circuits, which can be called ground capacitance compensation, namely, a resistance-capacitance absorption neutral point of a superior master switch is grounded to ensure the reliability of the experiment, first, the first testing conducting wire 7 is connected with the tester 1 through the matching among the first contact cap 8, the first connector 4 and the first contact 18, then, the three second testing conducting wires 13 are connected with the tester 1 through the matching among the second contact cap 15, the second connector 3 and the second contact 17, and then, the tester 1 is fixed at a certain position through the matching between the fixed base 5 and the mounting hole 6, then connect the three-phase power supply side of the feed switch through three electricity-connecting rings 14, the plug 11 and the electric clamp 12 will be used as main ground and auxiliary ground, after the test is started, if the feed switch does not trip in the sub-feed leakage test, the feed switch can be kept in the trip state only by changing the positions of two wire outlets of the primary end or the secondary end of the zero sequence voltage transformer, the worker does not need to change the zero sequence voltage transformer underground, the normal operation of the equipment is ensured, the electrician is ensured to work smoothly underground, the electrical equipment accident is reduced, the damage of the equipment is avoided, the normal operation of the equipment is ensured, the cost is reduced, and the benefit is increased.
Specifically, the specification size of the first contact cap 8 is matched with the specification size of the first connector 4, and the specification size of the first contact cap 8 is matched with the specification size of the first contact 18.
In this embodiment, the first inspection wire 7 can be connected to the checker 1 by the cooperation between the first contact cap 8, the first tab 4, and the first contact 18.
Specifically, there are three second inspection conductors 13, three second contacts 3, and the second contact cap 15 is adapted in size to the second contacts 17.
In this embodiment, three second inspection wires 13 can be connected to the checker 1 by the cooperation between the second contact cap 15, the second tab 3, and the second contact 17.
Specifically, there are three indicator lights 2, and the positions of the three indicator lights 2 correspond to the positions of the three second connectors 3.
In this embodiment, the experimental detection condition can be judged through the indicator lamp 2, and when the feeder switch of the separate feed leakage test does not trip, the indicator lamp 2 can be lighted.
Specifically, the fixing base 5 is fixedly mounted on two sides of the checker 1, and the mounting hole 6 is formed in the fixing base 5.
In this embodiment, the checker 1 can be fixed somewhere by the fit between the fixing base 5 and the mounting hole 6.
Specifically, the back of the checker 1 is fixedly provided with a signboard 16.
In this embodiment, the signboard 16 is convenient for the worker to recognize.
The utility model discloses a theory of operation and use flow: firstly, a first inspection lead 7 is connected with an inspector 1 through the matching among a first contact cap 8, a first connector 4 and a first contact 18, then three second inspection leads 13 are connected with the inspector 1 through the matching among a second contact cap 15, a second connector 3 and a second contact 17, then the inspector 1 is fixed at a certain position through the matching among a fixed seat 5 and a mounting hole 6, then a three-phase power source side of a feed switch is connected through three power rings 14, a plug 11 and an electric clamp 12 are used as a main ground and an auxiliary ground, after a test is started, if the feed switch is subjected to a sub-feed leakage test and does not trip, the feed switch can be kept in a trip state only by changing the positions of two outlet terminals of a primary end or a secondary end of a zero sequence voltage transformer, a worker does not need to switch down in a well, and the normal use of equipment is guaranteed, the underground electric power tool has the advantages that smooth work of electricians in the underground is guaranteed, electrical equipment accidents are reduced, equipment damage is avoided, normal use of the equipment is guaranteed, cost is reduced, and benefits are increased.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A branch feeder leakage experiment detection device for a feeder switch comprises a checker (1), a first check lead (7) and a second check lead (13), and is characterized in that: the top fixed mounting of finder (1) has first joint (4), the inside fixed mounting of first joint (4) has first contact (18), the top fixed mounting of finder (1) has second joint (3), the inside fixed mounting of second joint (3) has second contact (17), the top fixed mounting of finder (1) has pilot lamp (2), the one end fixed mounting of first inspection wire (7) has first cap (8) of touching, the one end electric connection that first inspection wire (7) kept away from first cap (8) has first wire (10), the one end that first wire (10) kept away from first cap (8) is connected with plug (11), the one end electric connection that first inspection wire (7) kept away from first cap (8) has second wire (9), the one end that first cap (8) of touching was kept away from to second wire (9) is connected with electric clamp (12), one end fixed mounting of second inspection wire (13) has the second to touch cap (15), the one end that second inspection wire (13) kept away from second and touched cap (15) is connected with and connects electric ring (14).
2. The apparatus according to claim 1, wherein the apparatus comprises: the specification and size of the first contact cap (8) are matched with the specification and size of the first connector (4), and the specification and size of the first contact cap (8) are matched with the specification and size of the first contact (18).
3. The apparatus according to claim 1, wherein the apparatus comprises: the second inspection wire (13) has three, the second connects (3) has three, the specification and size that cap (15) was touched to the second and the specification and size looks adaptation of second joint (3), the specification and size that cap (15) was touched to the second and the specification and size looks adaptation of second contact (17).
4. The apparatus according to claim 1, wherein the apparatus comprises: the number of the indicator lamps (2) is three, and the positions of the three indicator lamps (2) correspond to the positions of the three second connectors (3).
5. The apparatus according to claim 1, wherein the apparatus comprises: the both sides of checker (1) are all fixedly mounted with fixing seats (5), and mounting holes (6) are opened in the fixing seats (5).
6. The apparatus according to claim 1, wherein the apparatus comprises: and a signboard (16) is fixedly arranged on the back of the checker (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022626312.7U CN213482405U (en) | 2020-11-13 | 2020-11-13 | A divide and present electric leakage experiment detection device for feed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022626312.7U CN213482405U (en) | 2020-11-13 | 2020-11-13 | A divide and present electric leakage experiment detection device for feed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213482405U true CN213482405U (en) | 2021-06-18 |
Family
ID=76355088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022626312.7U Expired - Fee Related CN213482405U (en) | 2020-11-13 | 2020-11-13 | A divide and present electric leakage experiment detection device for feed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213482405U (en) |
-
2020
- 2020-11-13 CN CN202022626312.7U patent/CN213482405U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |