CN114252687A - Electricity testing trolley device of 10kV vacuum circuit breaker - Google Patents
Electricity testing trolley device of 10kV vacuum circuit breaker Download PDFInfo
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- CN114252687A CN114252687A CN202111461067.1A CN202111461067A CN114252687A CN 114252687 A CN114252687 A CN 114252687A CN 202111461067 A CN202111461067 A CN 202111461067A CN 114252687 A CN114252687 A CN 114252687A
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- circuit breaker
- assembly
- rear shell
- vacuum circuit
- trolley device
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 230000005611 electricity Effects 0.000 title claims abstract description 64
- 239000012212 insulator Substances 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 241000722921 Tulipa gesneriana Species 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Trip Switchboards (AREA)
Abstract
The invention discloses an electricity testing trolley device of a 10kV vacuum circuit breaker, wherein a movable shell assembly comprises a rear shell, a bottom plate and two wheel sets, wherein the rear shell is arranged at the top of one end of the bottom plate, and the two wheel sets are arranged at the bottom of the bottom plate; the lifting limiting assembly is arranged at the top of the bottom plate and comprises an upper limiting plate and a lower limiting plate, the upper limiting plate is arranged at the top of one side of the rear shell, and the lower limiting plate is arranged at one side of the bottom of the rear shell; the insulating support arm assembly is arranged at the bottom of the upper limiting plate and comprises a high-voltage insulator, a high-voltage sensor and a conductor, the high-voltage insulator is arranged on one side of the rear shell, the high-voltage sensor is connected with the high-voltage insulator, and the conductor is connected with one end of the high-voltage sensor; the signal feedback assembly is arranged on the other side of the rear shell and comprises a test position signal indicating lamp and a working position signal indicating lamp, and the test position signal indicating lamp is arranged at the top of the working position signal indicating lamp. According to the invention, through the cooperation of the movable shell component, the lifting limiting component, the insulating support arm component and the signal feedback component, the operation flow of electricity testing is greatly simplified, the electricity testing inside the switch cabinet of the kV station electric system is more standard, convenient, rapid and reliable, the safety of operators can be ensured, and the operation difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of detection and calibration, in particular to an electricity testing trolley device of a 10kV vacuum circuit breaker.
Background
The traditional electricity testing method comprises the following steps: 2 people take insulating gloves respectively and use the order gram stick to promote the valve self-lock device of circuit breaker upper and lower static contact both sides simultaneously, and must exert oneself evenly, in order to guarantee that valve self-lock mechanism connecting rod upwards or smooth movement downwards, do not take place the bite, otherwise can not normally open valve self-lock device, after opening circuit breaker stationary contact upper end (bus side) valve, 3 rd people take insulating gloves with 10kV electroscope contact circuit breaker electrified stationary contact upper end, in order to verify the good or bad of electroscope, confirm that the electroscope function is normal after, reuse same method to open circuit breaker static contact lower end (ground connection knife brake side) valve, then contact circuit breaker static contact lower end A, B, C respectively and carry out test one by one.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with the conventional 10kV vacuum circuit breaker electroscopic trolley apparatus.
The problem to be solved by the invention is therefore how to quickly and simply test electricity.
In order to solve the technical problems, the invention provides the following technical scheme: the electricity testing trolley device of the 10kV vacuum circuit breaker comprises a movable shell assembly, a power supply control module and a power supply control module, wherein the movable shell assembly comprises a rear shell, a bottom plate and two wheel sets, the rear shell is arranged at the top of one end of the bottom plate, and the two wheel sets are arranged at the bottom of the bottom plate;
the lifting limiting assembly is arranged at the top of the bottom plate and comprises an upper limiting plate and a lower limiting plate, the upper limiting plate is arranged at the top of one side of the rear shell, and the lower limiting plate is arranged at one side of the bottom of the rear shell;
the insulating support arm assembly is arranged at the bottom of the upper limiting plate and comprises a high-voltage insulator, a high-voltage sensor and a conductor, the high-voltage insulator is arranged on one side of the rear shell, the high-voltage sensor is connected with the high-voltage insulator, and the conductor is connected with one end of the high-voltage sensor;
the signal feedback assembly is arranged on the other side of the rear shell and comprises a test position signal indicating lamp and a working position signal indicating lamp, and the test position signal indicating lamp is arranged at the top of the working position signal indicating lamp.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the lifting limiting assembly further comprises three guide grooves, and the three guide grooves are vertically and evenly distributed on one side of the rear shell.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the lifting limiting assembly further comprises a folding support and a horizontal supporting plate, the folding support is arranged at the top of the bottom plate, and the horizontal supporting plate is arranged at the top of the folding support.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the lifting limiting assembly further comprises a rotary screw rod, and the bottom of the folding support is matched with the rotary screw rod.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the insulating support arm assembly further comprises a limiting block, the limiting block is arranged in the guide groove, and the limiting block is fixedly connected with the high-voltage insulator.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the lifting limiting assembly further comprises a lifting mechanism operation hole and a moving chassis operation hole, the lifting mechanism operation hole is formed in the bottom of one side of the rear shell, and the moving chassis operation hole is formed in one side of the bottom plate.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the signal feedback subassembly still includes a display and No. two displays, a display with No. two displays set up in backshell one side, a display set up in No. two display one side.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the signal feedback assembly further comprises an upper end head in-place lamp and a lower end head in-place lamp, the upper end head in-place lamp is arranged on the test position signal indicating lamp, and the lower end head in-place lamp is arranged on one side of the working position signal indicating lamp.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the insulating support arm assembly further comprises a plum blossom contact which is fixedly matched with the conductor.
As a preferred scheme of the electricity testing trolley device of the 10kV vacuum circuit breaker, the electricity testing trolley device comprises the following components: the insulating support arm component has three sets, the stopper all with the guide way matches.
The invention has the beneficial effects that: according to the invention, through the cooperation of the movable shell component, the lifting limit component, the insulating support arm component and the signal feedback component, the operation flow of electricity testing is greatly simplified, so that the electricity testing inside the 10kV station power system switch cabinet is more standard, convenient, rapid and reliable, the safety of operators can be ensured, and the operation difficulty is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a side view of an electricity testing trolley device of a 10kV vacuum circuit breaker.
Fig. 2 is a view of the large part of the electricity testing trolley device of the 10kV vacuum circuit breaker.
Fig. 3 is a rear view of the electricity testing trolley device of the 10kV vacuum circuit breaker.
Fig. 4 is a front view (with an insulating support arm assembly below) of the electricity testing trolley device of the 10kV vacuum circuit breaker.
Fig. 5 is a front view (with the insulating support arm assembly on top) of the electricity testing trolley device of the 10kV vacuum circuit breaker.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, a first embodiment of the invention provides a 10kV vacuum circuit breaker electricity testing trolley device, and the 10kV vacuum circuit breaker electricity testing trolley device comprises.
Specifically, the mobile housing assembly 100 comprises a rear shell 101, a bottom plate 102 and two wheel pairs 103, wherein the rear shell 101 is arranged at the top of one end of the bottom plate 102, the two wheel pairs 103 are arranged at the bottom of the bottom plate 102, and the mobile housing assembly 100 provides a mobile capability for the electricity testing trolley device.
Specifically, the spacing subassembly 200 that goes up and down sets up in bottom plate 102 top, and spacing subassembly 200 includes spacing board 201 and lower limiting plate 202 down, goes up spacing board 201 and sets up in backshell 101 one side top, and lower limiting plate 202 sets up in backshell 101 bottom one side, and the spatial position of the measuring component of the spacing subassembly 200 regulation of going up and down electroscope device dolly the inside conveniently tests the electricity.
Specifically, insulating arm subassembly 300 sets up in limiting plate 201 bottom on, including high voltage insulator 301, high pressure sensor 302 and conductor 303, and high voltage insulator 301 sets up in backshell 101 one side, and high voltage sensor 302 connects high voltage insulator 301, and high voltage sensor 302 one end is connected to conductor 303, and insulating arm subassembly 300 includes various electroscope, for electroscope dolly provides the detection means.
Specifically, signal feedback subassembly 400 sets up in backshell 101 opposite side, including experimental position signal indicator 401 and work position signal indicator 402, and experimental position signal indicator 401 sets up in work position signal indicator 402 top, according to equipping the task that required completion, can adjust work position or experimental position respectively, and corresponding lamp can be bright this moment.
When the vacuum circuit breaker is used, the movable shell assembly 100 provides the moving capacity for the electricity testing trolley device, the lifting limiting assembly 200 adjusts the space position of the measuring assembly inside the electricity testing trolley device, electricity testing is convenient, the insulating support arm assembly 300 comprises various electricity testing sensors, a detection means is provided for the electricity testing trolley, and the running state of the vacuum circuit breaker is judged according to the display content of the signal feedback assembly 400.
Example 2
Referring to fig. 1 to 5, there is shown a second embodiment of the present invention, which is based on the above embodiment.
Specifically, the lifting limiting assembly 200 further comprises three guide grooves 203, the three guide grooves 203 are vertically and evenly distributed on one side of the rear shell 101, and the guide grooves 203 limit the insulating support arm assembly 300 to move up and down only along the direction of the grooves.
Specifically, the lifting limiting assembly 200 further comprises a folding support 204 and a horizontal support plate 205, the folding support 204 is arranged at the top of the bottom plate 102, the horizontal support plate 205 is arranged at the top of the folding support 204, the folding support 204 is fixed on the bottom plate 102, the horizontal support plate 205 is fixed on the folding support 204, the stability of the device is enhanced, and the folding support 204 adjusts the height of the insulating support arm assembly 300.
Specifically, the lifting limiting assembly 200 further comprises a rotary screw 206, which is matched with the bottom of the folding bracket 204, and the rotary screw 206 adjusts the horizontal position of the folding bracket 204, so as to adjust the horizontal position of the insulating support arm assembly 300.
Specifically, the insulating support arm assembly 300 further comprises a limiting block 304 which is arranged in the guide groove 203, the limiting block 304 is fixedly connected with the high-voltage insulator 301, and the limiting block 304 limits the insulating support arm assembly 300 to move up and down only in the guide groove 203.
Specifically, the lifting limit assembly 200 further includes a lifting mechanism operation hole 207 and a moving chassis operation hole 208, the lifting mechanism operation hole 207 is disposed at the bottom of one side of the rear casing 101, the moving chassis operation hole 208 is disposed at one side of the bottom plate 102, and the two holes are used for inserting corresponding operation members to adjust the movement of the lifting limit assembly 200 and the whole device.
When in use, the movable shell assembly 100 provides the moving capability for the electricity testing trolley device, the lifting limiting assembly 200 adjusts the space position of the measuring assembly in the electricity testing trolley device, the guide groove 203 limits the insulating support arm assembly 300 to only move up and down along the groove direction, the horizontal supporting plate 205 is fixed on the folding support 204 to strengthen the stability of the device, the folding support 204 adjusts the height of the insulating support arm assembly 300, the rotary screw 206 adjusts the horizontal position of the folding support 204, thereby adjust insulating arm subassembly 300 horizontal position, elevating system handle hole 207 and removal chassis handle hole 208 are used for inserting corresponding operating parts, adjust the removal of spacing subassembly 200 of lift and whole device, conveniently test the electricity, and insulating arm subassembly 300 includes various electricity sensors, for testing the electricity dolly provides the detection means, according to signal feedback subassembly 400 display content, judges vacuum circuit breaker operating condition.
Example 3
Referring to fig. 1 to 5, there is shown a third embodiment of the present invention, which is based on the first two embodiments.
Specifically, the signal feedback assembly 400 further comprises a first display 403 and a second display 404, the first display 403 and the second display 404 are arranged on one side of the rear shell 101, the first display 403 is arranged on one side of the second display 404, after the positions of the movable shell assembly 100, the lifting limiting assembly 200 and the insulating support arm assembly 300 are adjusted, the high-voltage sensor 302, the conductor 303 and the tulip contact 305 can start to test electricity, and the two electrified displays can display corresponding states.
Specifically, the signal feedback assembly 400 further includes an upper end in-place lamp 405 and a lower end in-place lamp 406, the upper end in-place lamp 405 is disposed on the test position signal indicator lamp 401, the lower end in-place lamp 406 is disposed on one side of the working position signal indicator lamp 402, the electricity testing device sends an "upper end in-place" signal after contacting a movable door on the bus side of the upper end of the static contact of the circuit breaker, the upper end in-place lamp 405 is turned on, the lower end in-place signal is sent after contacting a static contact on the circuit breaker, and the lower end in-place lamp 406 is turned on.
Specifically, the insulating support arm assembly 300 further comprises a tulip contact 305, and the tulip contact 305 is fixedly matched with the conductor 303 and used for judging high voltage and measuring the electrified condition.
Specifically, the insulating support arm assembly 300 has three sets, and the stopper 304 all cooperates with the guide way 203, and the insulating support arm assembly 300 is only restricted to move in the vertical direction, avoids unnecessary position change.
When in use, the movable shell assembly 100 provides the moving capability for the electricity testing trolley device, the lifting limiting assembly 200 adjusts the space position of the measuring assembly in the electricity testing trolley device, the guide groove 203 limits the insulation support arm assembly 300 to only move up and down along the groove direction, the horizontal supporting plate 205 is fixed on the folding support 204 to enhance the device stability, the folding support 204 adjusts the height of the insulation support arm assembly 300, the rotary screw 206 adjusts the horizontal position of the folding support 204 so as to adjust the horizontal position of the insulation support arm assembly 300, the lifting mechanism operation hole 207 and the movable chassis operation hole 208 are used for inserting corresponding operation pieces to adjust the movement of the lifting limiting assembly 200 and the whole device, the electricity testing is convenient, the insulation support arm assembly 300 comprises various electricity testing sensors and provides a detection means for the electricity testing trolley, and two electrified displays can display corresponding states according to the display content of the signal feedback assembly 400, thereby judging the operating state of the vacuum circuit breaker.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a 10kV vacuum circuit breaker tests electric dolly device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the mobile shell assembly (100) comprises a rear shell (101), a bottom plate (102) and two wheel pairs (103), wherein the rear shell (101) is arranged at the top of one end of the bottom plate (102), and the two wheel pairs (103) are arranged at the bottom of the bottom plate (102);
the lifting limiting assembly (200) is arranged at the top of the bottom plate (102), the limiting assembly (200) comprises an upper limiting plate (201) and a lower limiting plate (202), the upper limiting plate (201) is arranged at the top of one side of the rear shell (101), and the lower limiting plate (202) is arranged at one side of the bottom of the rear shell (101);
the insulation support arm assembly (300) is arranged at the bottom of the upper limiting plate (201) and comprises a high-voltage insulator (301), a high-voltage sensor (302) and a conductor (303), the high-voltage insulator (301) is arranged on one side of the rear shell (101), the high-voltage sensor (302) is connected with the high-voltage insulator (301), and the conductor (303) is connected with one end of the high-voltage sensor (302);
the signal feedback assembly (400) is arranged on the other side of the rear shell (101) and comprises a test position signal indicator lamp (401) and a working position signal indicator lamp (402), and the test position signal indicator lamp (401) is arranged at the top of the working position signal indicator lamp (402).
2. The 10kV vacuum circuit breaker electricity testing trolley device of claim 1, wherein: the lifting limiting assembly (200) further comprises three guide grooves (203), and the three guide grooves (203) are vertically and evenly distributed on one side of the rear shell (101).
3. The 10kV vacuum circuit breaker electricity testing trolley device of claim 2, wherein: the lifting limiting assembly (200) further comprises a folding support (204) and a horizontal supporting plate (205), the folding support (204) is arranged at the top of the bottom plate (102), and the horizontal supporting plate (205) is arranged at the top of the folding support (204).
4. The 10kV vacuum circuit breaker electricity inspection trolley device of claim 3, wherein: the lifting limiting assembly (200) further comprises a rotary screw rod (206) matched with the bottom of the folding support (204).
5. The 10kV vacuum circuit breaker electricity inspection trolley device of claim 4, wherein: the insulating support arm assembly (300) further comprises a limiting block (304) which is arranged in the guide groove (203), and the limiting block (304) is fixedly connected with the high-voltage insulator (301).
6. The 10kV vacuum circuit breaker electricity inspection trolley device of claim 5, wherein: the lifting limiting assembly (200) further comprises a lifting mechanism operation hole (207) and a moving chassis operation hole (208), the lifting mechanism operation hole (207) is formed in the bottom of one side of the rear shell (101), and the moving chassis operation hole (208) is formed in one side of the bottom plate (102).
7. The 10kV vacuum circuit breaker electricity inspection trolley device of claim 5 or 6, wherein: the signal feedback assembly (400) further comprises a first display (403) and a second display (404), the first display (403) and the second display (404) are arranged on one side of the rear shell (101), and the first display (403) is arranged on one side of the second display (404).
8. The 10kV vacuum circuit breaker electricity testing trolley device of claim 7, wherein: the signal feedback assembly (400) further comprises an upper end positioning lamp (405) and a lower end positioning lamp (406), the upper end positioning lamp (405) is arranged on the test position signal indicator lamp (401), and the lower end positioning lamp (406) is arranged on one side of the working position signal indicator lamp (402).
9. The 10kV vacuum circuit breaker electricity testing trolley device of claim 8, wherein: the insulating support arm assembly (300) further comprises a tulip contact (305), and the tulip contact (305) is fixedly matched with the conductor (303).
10. The 10kV vacuum circuit breaker electricity testing trolley device of claim 5 or 9, wherein: the insulating support arm assembly (300) is provided with three sets, and the limiting blocks (304) are matched with the guide grooves (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461067.1A CN114252687A (en) | 2021-11-30 | 2021-11-30 | Electricity testing trolley device of 10kV vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461067.1A CN114252687A (en) | 2021-11-30 | 2021-11-30 | Electricity testing trolley device of 10kV vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114252687A true CN114252687A (en) | 2022-03-29 |
Family
ID=80793838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111461067.1A Withdrawn CN114252687A (en) | 2021-11-30 | 2021-11-30 | Electricity testing trolley device of 10kV vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114252687A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204118542U (en) * | 2014-08-09 | 2015-01-21 | 南京开关厂有限公司 | A kind of movable electricity testing device |
| CN207504331U (en) * | 2017-11-06 | 2018-06-15 | 国网河南省电力公司南阳供电公司 | A kind of totally-enclosed switch cabinet electricity detection device |
| CN207939072U (en) * | 2018-04-06 | 2018-10-02 | 江苏瑞鑫电器有限公司 | A kind of high voltage switch cabinet electricity check trolley |
| CN213275884U (en) * | 2020-06-22 | 2021-05-25 | 华能澜沧江水电股份有限公司 | 10kV vacuum circuit breaker tests electric installation |
-
2021
- 2021-11-30 CN CN202111461067.1A patent/CN114252687A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204118542U (en) * | 2014-08-09 | 2015-01-21 | 南京开关厂有限公司 | A kind of movable electricity testing device |
| CN207504331U (en) * | 2017-11-06 | 2018-06-15 | 国网河南省电力公司南阳供电公司 | A kind of totally-enclosed switch cabinet electricity detection device |
| CN207939072U (en) * | 2018-04-06 | 2018-10-02 | 江苏瑞鑫电器有限公司 | A kind of high voltage switch cabinet electricity check trolley |
| CN213275884U (en) * | 2020-06-22 | 2021-05-25 | 华能澜沧江水电股份有限公司 | 10kV vacuum circuit breaker tests electric installation |
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Application publication date: 20220329 |