CN110702952A - Portable 10kV handcart switch loop resistance test auxiliary device - Google Patents
Portable 10kV handcart switch loop resistance test auxiliary device Download PDFInfo
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- CN110702952A CN110702952A CN201910896995.7A CN201910896995A CN110702952A CN 110702952 A CN110702952 A CN 110702952A CN 201910896995 A CN201910896995 A CN 201910896995A CN 110702952 A CN110702952 A CN 110702952A
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- resistance test
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000012827 research and development Methods 0.000 abstract 1
- 238000010998 test method Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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Abstract
The invention relates to a portable 10kV handcart switch loop resistance test auxiliary device, which is suitable for the field of handcart switch tests of 10kV voltage class of a power system. Design research and development a test auxiliary device, possess the special fixture that accords with 10kV handcart switch contact, once connect 6 contacts (be a handcart switch), when good contact improves the measuring accuracy, it is convenient to accomodate, and is convenient to carry, can change the test of looks difference one by one, accord with return circuit resistance test method, avoid because of the commutation wiring in-process instrument not pulling out the electricity, the electrified human body that causes of fixture electrocutes the injury, the disposable wiring operation of hand-held device is convenient, very big improvement work efficiency, the hand-held device accomodates the test wire, the scene is neatly drawn one, satisfy star level standardization scene.
Description
Technical Field
The invention relates to a portable 10kV handcart switch loop resistance test auxiliary device, which is suitable for the field of handcart switch tests of 10kV voltage class of a power system.
Background
In a high-voltage test of an electric power system, according to the requirements of national standard electrical device installation engineering electrical equipment handover test standard (GB 50150-2016) and national grid company enterprise standard power transmission and transformation equipment state overhaul test regulations (Q/GDW 1168-2013), a test project for a handcart switch (vacuum circuit breaker) comprises the step of measuring the resistance of each phase of conductive loop so as to check whether the handcart switch (vacuum circuit breaker) meets the standard requirements.
In the handing-over acceptance of new-built transformer substation and routine maintenance of transformer substation, need carry out every looks conductive loop resistance test to the handcart switch in the 10kV high tension switchgear in the transformer substation, a handcart switch (vacuum circuit breaker) has ABC three-phase, a 66kV transformer substation is equipped with 30 ~ 40 vacuum circuit breakers, and main loop resistance test needs single-phase test, work load is great, complex operation, there is personal safety hidden danger among the commutation process, and present test instrument does not have special fixture, because of the bad contact that fixture problem leads to need retest many times, very big reduction work efficiency, the test wire that the instrument was equipped with is longer, often can cause scene disorder, unsatisfied star level standardization scene.
Disclosure of Invention
In order to solve the technical problems, the test auxiliary device is designed and researched, and is provided with a special fixture which accords with a 10kV handcart switch contact, and the technical scheme of the invention is as follows:
the utility model provides a portable 10kV handcart switch return circuit resistance test auxiliary device, including portable box, portable box is equipped with and receives line knob and phase place switching knob, it is connected with sample connecting wire and instrument connecting wire rear end respectively to receive the line knob, sample connecting wire front end is connected with special fixture, special fixture includes the metal fixture head, and a housing, T type pole, the housing front end is provided with two metal fixture heads through the hinge activity, the first closure of metal fixture forms the contained angle, be provided with between two metal fixture heads and tighten up the spring, two metal fixture heads are connected with the current pole and the voltage utmost point wire that pass the housing respectively, two fixture metal fixture head rear ends and T type pole front end T type head both ends swing joint, T type pole rear end runs through the housing and is connected with the take-out pole, be provided with supporting spring between T type pole front end T type head and the housing front end.
The two ends of the T-shaped head at the front end of the T-shaped rod are rotatably provided with rollers which are movably connected with the two metal clamp heads.
The elasticity of the supporting spring is larger than that of the tightening spring.
The suitcase body is internally provided with a clapboard which divides the suitcase body into an upper layer and a lower layer.
The take-up knob is arranged on the partition plate in a penetrating mode through the take-up shaft below the take-up knob, a bearing is arranged at the joint of the take-up shaft and the partition plate, the partition plate divides the take-up shaft into an upper part and a lower part, and the test sample connecting wire and the instrument connecting wire are respectively connected with the upper part and the lower part of the take-up shaft in a winding mode.
The upper and lower ends of the take-up shaft are provided with bearings
The portable box body is provided with a wire outlet hole, and the test article connecting wire and the instrument connecting wire are respectively connected with external equipment through the wire outlet hole.
Every two test article connecting lines are one phase and three phases in total, and the two test article connecting lines of each phase are controlled by a take-up knob.
The phase switching knob comprises three-phase current and voltage pole contacts, and the contacts of the current pole and the voltage pole of the test sample connecting line and the instrument connecting line can be respectively connected by rotating the phase switching knob.
The portable box body is provided with a wire outlet hole, and the sample connecting wire and the instrument connecting wire can be extended and stored through the wire outlet hole and are manually controlled by a wire collecting knob. The wire holes are provided with a wire hole which is the wire hole of the instrument connecting wire, six wire holes are the wire holes of the test sample connecting wires, each test sample connecting wire is connected with a special fixture, every two test sample connecting wires are of one phase, the ABC three phases are total, and the two test sample connecting wires of each phase are controlled by a wire collecting knob. Wherein every inside of receipts line knob contains a receipts spool, three bearing, a baffle, receives the line knob through the rotation and drives the receipts spool, accomodates and release the connecting wire through the support rotation of baffle and bearing. Wherein the principle of accomodating of instrument connecting wire is the same with the principle of sample connecting wire.
The phase switching knob is internally provided with an ABC three-phase current pole contact and a voltage pole contact, and the phase switching knob is rotated to respectively connect the voltage current pole contact of the instrument connecting wire end and the voltage current pole contact of the test sample connecting wire end.
The voltage and current pole contact of the instrument connecting wire end and the voltage and current pole contact of the test article connecting wire end.
Compared with the prior art, the invention has the beneficial effects that: the special fixture which is in line with the 10kV handcart switch contact is designed, 6 contacts are connected at one time, the testing precision is improved due to good contact, the phase difference testing can be converted one by one, the circuit resistance testing method is in line, and the personal electric shock injury caused by non-electrification of an instrument and electrification of the fixture in the phase change wiring process is avoided.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a view showing the structure of the special fixture of the present invention;
FIG. 3 is a schematic view of the stowing of the present invention;
FIG. 4 is a schematic diagram of the commutation of the present invention;
FIG. 5 is a schematic view of the application of the special fixture of the present invention;
in the figure: 1. the portable box body, 2, a phase switching knob, 3, a sample connecting wire take-up knob, 4, an instrument connecting wire take-up knob, 5, a wire outlet hole, 6, a sample connecting wire, 7, an instrument connecting wire, 8, a special clamp, 9, a tightening spring, 10, a T-shaped rod, 11, a supporting spring, 12, a roller, 13, a metal clamp head, 14, a sample insulating sheath, 15, a sample inner tube wall, 16, a sample spring contact finger, 17, a current pole, 18, a voltage pole, 19, a current voltage pole contact, 20, a bearing, 21, a take-up shaft, 22, a partition plate, 23, a take-up rod, 24, a hinge, 25 and a shell.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments
Example 1
As shown in fig. 2 and 5, the metal fixture head 13 has two pieces, which are respectively connected to the voltage electrode 17 wire and the current electrode 18 wire, and are movably connected to the front end of the housing 25 through a hinge 24, the pull rod 23 is pulled to drive the T-shaped rod 10 to compress the support spring 11, at this time, the metal fixture head 13 will make a closing action under the action of the tightening spring 9, enter the inner tube wall 15 of the tested article, at this time, the pull rod 23 is released, the T-shaped rod 10 will open the metal fixture head 13 through the roller 12 under the action of the support spring 11, so that the metal fixture head 13 is clamped on the inner tube wall 15 and is reliably contacted.
Example 2
As shown in fig. 1 and 3, the suitcase body 1 is provided with a wire outlet 5, and the sample connecting wire 6 and the instrument connecting wire 7 can be extended and stored through the wire outlet 5 and manually controlled by the wire take-up knob 3. The wire outlet holes 5 are provided with a wire outlet hole which is a wire outlet hole of the instrument connecting wire 7, six wire outlet holes are wire outlet holes of the test product connecting wires 6, each test product connecting wire 6 is connected with a special fixture 8, every two test product connecting wires 6 are in one phase, the ABC three phases are formed, and the two test product connecting wires 6 in each phase are controlled by a wire collecting knob. Each inside of the wire take-up knob contains a wire take-up shaft 21, three bearings 20 and a partition plate 22, the wire take-up shaft 21 is driven by rotating the wire take-up knob, a test article connecting wire 6 and an instrument connecting wire 7 are stored and released through the support rotation of the partition plate 22 and the bearings 20, and the structure and the storage principle of the wire take-up knob 3 for the test article connecting wire and the wire take-up knob 4 for the instrument connecting wire are the same.
Example 3
As shown in fig. 4, the phase switching knob 2 includes a current electrode 17 contact 19 and a voltage electrode 18 contact 19 for the ABC three phases therein, and the phase switching knob 2 is rotated to make the voltage current electrode contact 19 at the instrument connection line 7 end and the voltage current electrode contact 19 at the sample connection line 6 end respectively.
Example 4
When the phase switching knob 2 is used, the instrument connecting wire 7 is connected with the existing instrument, the test article connecting wire 6 is connected with a test piece through the special fixture 8, and then the phase switching knob 2 is adjusted to perform a test.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A portable 10kV handcart switch loop resistance test auxiliary device comprises a portable box body (1), and is characterized in that the portable box body (1) is provided with a take-up knob and a phase switching knob (2), the take-up knob is respectively connected with a test article connecting wire (6) and the rear end of an instrument connecting wire (7), the front end of the test article connecting wire (6) is connected with a special fixture (8), the special fixture (8) comprises a metal fixture head (13), a shell (25) and a T-shaped rod (10), the front end of the shell (25) is movably provided with two metal fixture heads (13) through a hinge (24), the metal fixture heads (13) are closed to form an included angle, a tightening spring (9) is arranged between the two metal fixture heads (13), the two metal fixture heads (13) are respectively connected with a current electrode (17) and a voltage electrode (18) which penetrate through the shell (25), the rear ends of the two metal fixture heads (13) are movably connected with the two T-shaped ends of the front end of the T-shaped rod, the rear end of the T-shaped rod (10) penetrates through the shell (25) to be connected with the pulling rod (23), and a supporting spring (11) is arranged between the T-shaped head at the front end of the T-shaped rod (10) and the front end of the shell (25).
2. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, characterized in that rollers (12) are rotatably arranged at two ends of a T-shaped head at the front end of the T-shaped rod (10) and movably connected with two metal fixture heads (13).
3. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, characterized in that the elasticity of the supporting spring (11) is larger than that of the tightening spring (9).
4. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, characterized in that a partition board (22) is arranged in the suitcase body (1), and the suitcase body (1) is divided into an upper layer and a lower layer by the partition board (22).
5. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 4, characterized in that the take-up knob is arranged on the partition plate (22) through the take-up shaft (21) below, a bearing (20) is arranged at the joint of the take-up shaft (21) and the partition plate (22), the take-up shaft (21) is divided into an upper part and a lower part by the partition plate (22), and the test article connecting wire (6) and the instrument connecting wire (7) are respectively wound and connected with the upper part and the lower part of the take-up shaft (21).
6. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, characterized in that bearings (20) are arranged at the upper and lower ends of the take-up shaft (21).
7. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, characterized in that the suitcase body (1) is provided with an outlet hole (5), and the sample connecting wire (6) and the instrument connecting wire (7) are respectively connected with external equipment through the outlet hole (5).
8. The portable 10kV handcart switch loop resistance test auxiliary device according to claim 1, wherein each two test article connecting lines (6) are in one phase and three phases, and the two test article connecting lines (6) of each phase are controlled by a take-up knob.
9. The portable 10kV handcart switch loop resistance test auxiliary device as claimed in claim 1, wherein the phase switching knob (2) comprises three-phase current and voltage pole contacts (19), and the contacts of the current pole (17) and the voltage pole (18) of the test sample connecting line (6) and the instrument connecting line (7) can be respectively connected by rotating the phase switching knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896995.7A CN110702952A (en) | 2019-09-23 | 2019-09-23 | Portable 10kV handcart switch loop resistance test auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896995.7A CN110702952A (en) | 2019-09-23 | 2019-09-23 | Portable 10kV handcart switch loop resistance test auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN110702952A true CN110702952A (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910896995.7A Pending CN110702952A (en) | 2019-09-23 | 2019-09-23 | Portable 10kV handcart switch loop resistance test auxiliary device |
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| Country | Link |
|---|---|
| CN (1) | CN110702952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398642A (en) * | 2020-06-08 | 2020-07-10 | 广东电网有限责任公司惠州供电局 | Circuit breaker mechanical characteristic tester line box |
| CN114593901A (en) * | 2022-01-12 | 2022-06-07 | 国网陕西省电力公司西安供电公司 | Handcart switch mechanical characteristic test connecting device |
-
2019
- 2019-09-23 CN CN201910896995.7A patent/CN110702952A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398642A (en) * | 2020-06-08 | 2020-07-10 | 广东电网有限责任公司惠州供电局 | Circuit breaker mechanical characteristic tester line box |
| CN114593901A (en) * | 2022-01-12 | 2022-06-07 | 国网陕西省电力公司西安供电公司 | Handcart switch mechanical characteristic test connecting device |
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