CN111293590A - Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet - Google Patents
Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet Download PDFInfo
- Publication number
- CN111293590A CN111293590A CN201811504143.0A CN201811504143A CN111293590A CN 111293590 A CN111293590 A CN 111293590A CN 201811504143 A CN201811504143 A CN 201811504143A CN 111293590 A CN111293590 A CN 111293590A
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- Prior art keywords
- baffle
- rotating shaft
- hole
- insulating
- switch cabinet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/14—Shutters or guards for preventing access to contacts
Abstract
The invention discloses an insulating baffle for direct electricity testing of a 10kV high-voltage switch cabinet, which comprises a baffle main body, wherein three through holes are uniformly distributed on the baffle main body; a rotating shaft is arranged below each through hole on the baffle main body, a circular baffle is arranged at the inner end of each rotating shaft, and the circular baffle shields the inner end of the corresponding through hole; the outer end of the rotating shaft is connected with a rotating shaft sleeve, and a bayonet lock is arranged on the rotating shaft sleeve along the radial direction, so that the insulating rod can be clamped on the rotating shaft sleeve and drive the rotating shaft sleeve to rotate; the round baffle is provided with a ball plunger close to the upper end of the outer edge of the round baffle, positioning pits are respectively arranged above each through hole at the back of the baffle main body, and when the round baffle shields the inner end of the corresponding through hole, steel balls of the ball plunger are respectively pushed into the corresponding positioning pits. The invention can directly test the 10kV high-voltage switch cabinet, has simple and convenient operation and high reliability, can avoid malignant misoperation accidents caused by incapability of directly testing the electricity and ensures personal safety and safe and stable operation of a power grid.
Description
Technical Field
The invention relates to an insulating baffle used in a high-voltage switch cabinet, in particular to an insulating baffle for direct electricity testing of the high-voltage switch cabinet.
Background
In recent years, with the continuous development of power grids, 10kV armored metal-enclosed switch cabinets are widely applied to power systems. However, in practical application, the problem of electricity testing of the switch cabinet is a problem which troubles the safe production of electric power for many years.
The safety regulations stipulate that before the grounding disconnecting link is closed, a contact electroscope with a corresponding voltage class is used for respectively testing electricity of each phase, and when the equipment is proved to have no voltage, the grounding disconnecting link can be closed. Due to the sealing requirement of the switch cabinet, the electricity testing operation on the circuit can be carried out only by opening the cabinet door behind the switch cabinet. But actually, the cubical switchboard has protection against electric shock shutting function, can open the back cabinet door of cubical switchboard only after closing ground connection disconnecting link. Therefore, when the equipment is changed from operation to maintenance operation, an operator cannot directly test the outgoing cable head. The safety regulations stipulate that indirect electricity testing can be performed on equipment which cannot be directly tested, namely, whether electricity exists is judged through changes of signals of a live display device of a switch cabinet and the like. However, the failure rate of the live display device of the existing switch cabinet is high, and the indication result can only be used as a reference. In addition, the reliability of indirect electroscopy is not superior to that of direct electroscopy.
At present, part of switch cabinet manufacturers research and develop corresponding electricity testing handcarts to carry out direct electricity testing. However, there are still some problems: firstly, test that electricity handcart weight is very big, fortune dimension personnel can only carry and operate with the help of the transfer car, very big influence work efficiency. Secondly, this electricity testing handcart is not widely promoted, and this electricity testing handcart has not been equipped with in many transformer substations yet.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet, which can be used for directly testing the electricity of the 10kV high-voltage switch cabinet, is simple and convenient to operate and high in reliability, can avoid malignant misoperation accidents caused by incapability of directly testing the electricity, and ensures personal safety and safe and stable operation of a power grid.
The technical scheme of the invention is as follows:
an insulating baffle for direct electricity testing of a 10kV high-voltage switch cabinet comprises a baffle main body made of insulating materials, wherein three through holes are uniformly distributed in the baffle main body, and each through hole corresponds to the central position of a static contact of the high-voltage switch cabinet; a rotatable rotating shaft is arranged below each through hole on the baffle main body, a circular baffle is fixed at the inner end of each rotating shaft, and the circular baffle shields the inner end of the corresponding through hole; the outer end of the rotating shaft is connected with a rotating shaft sleeve, a bayonet lock is arranged on the rotating shaft sleeve along the radial direction and is in clearance fit with a jack at the top of an insulating rod used when a grounding wire is arranged in a transformer substation, so that the insulating rod can be clamped on the rotating shaft sleeve and drive the rotating shaft sleeve to rotate; the round baffle is provided with a ball plunger close to the upper end of the outer edge of the round baffle, positioning pits are respectively arranged above each through hole at the back of the baffle main body, and when the round baffle shields the inner end of the corresponding through hole, steel balls of the ball plunger are respectively pushed into the corresponding positioning pits.
Preferably, the circular baffle is concentrically arranged with the corresponding through hole when shielding the inner end of the through hole, and the diameter of the circular baffle is 1.5-2 times of the inner diameter of the through hole.
Preferably, two positioning pieces are respectively arranged at the periphery of each through hole at the back of the baffle main body, wherein the first positioning piece is obliquely arranged, and the second positioning piece is horizontally arranged; when the circular baffle shields the inner end of the corresponding through hole, the outer edge of the circular baffle leans against the first positioning sheet; the circular baffle is turned over and leans against the second positioning sheet when opening the corresponding through hole.
Preferably, the two positioning pieces are U-shaped in cross section.
Preferably, the rotating shaft is connected with the rotating shaft sleeve through threads, and the rotating shaft penetrates through the baffle main body and is limited through the clamp spring.
Preferably, a warning board is arranged in front of the baffle body above each through hole.
Preferably, the rotating shaft, the circular baffle and the rotating shaft sleeve are all made of insulating materials.
The invention has the beneficial effects that: the application of the insulating baffle can effectively solve the problem that the 10kV high-voltage switch cabinet cannot be directly tested or is difficult to directly test electricity, can directly test electricity for the static contact of the circuit and the bus in the high-voltage switch cabinet, has very high reliability, is very simple and convenient to operate, can avoid malignant misoperation accidents caused by the fact that electricity cannot be directly tested, and ensures the safe and stable operation of personal safety and a power grid. Meanwhile, the operation and maintenance cost can be greatly saved, and the electricity testing time of the switch cabinet is effectively shortened, so that the power failure time is shortened, the power supply amount is increased, and more economic benefits are obtained.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a rear view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 2.
In the figure: the baffle comprises a baffle body 1, a through hole 101, a positioning pit 102, a rotating shaft sleeve 3, a bayonet 4, a circular baffle 5, a ball plunger 6, a first positioning piece 7, a second positioning piece 8 and a rotating shaft 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the insulating baffle for direct electricity testing of a 10kV high-voltage switch cabinet according to the present invention comprises a rectangular baffle main body 1 made of an insulating material, wherein three through holes 101 are uniformly distributed on the baffle main body 1, and each through hole 101 corresponds to a central position of a static contact of the high-voltage switch cabinet; rotatable rotating shafts 9 are arranged below each through hole 101 in the baffle body 1 in a penetrating mode respectively, and the rotating shafts 9 penetrate through the baffle body 1 and then are limited through clamp springs. The inner ends of the rotating shafts 9 are fixedly connected with circular baffles 5, the circular baffles 5 shield the inner ends of the corresponding through holes 101 and are arranged concentrically with the corresponding through holes 101, and the diameter of each circular baffle 5 is 1.5-2 times of the inner diameter of each through hole 101. The outer end of the rotating shaft 9 is connected with a rotating shaft sleeve 3 through threads, a bayonet lock 4 penetrates through the rotating shaft sleeve 3 along the radial direction and is in clearance fit with a jack at the top of an insulating rod used when a grounding wire is arranged in a transformer substation, so that the insulating rod can be clamped on the rotating shaft sleeve 3 and drives the rotating shaft sleeve 3 to rotate.
The round baffle 5 is provided with a ball plunger 6 close to the upper end of the outer edge of the round baffle through threads and a locking nut, a positioning pit 102 is respectively arranged above each through hole 101 at the back of the baffle main body 1, and when the round baffle 5 shields the inner end of the corresponding through hole 101, the steel balls of the ball plunger 6 are respectively pushed into the corresponding positioning pits 102.
Two positioning pieces are respectively fixed on the periphery of each through hole 101 at the back of the baffle body 1, and the cross sections of the two positioning pieces are U-shaped. Wherein the first locating plate 7 is obliquely arranged and the second locating plate 8 is horizontally arranged. When the circular baffle 5 shields the inner end of the corresponding through hole 101, the outer edge of the circular baffle 5 leans against the first positioning sheet 7, so that auxiliary positioning when the circular baffle 5 shields is realized; the circular baffle 5 is turned over to lean against the second positioning sheet 8 when the corresponding through hole 101 is opened.
And warning boards 2 are respectively arranged in front of the baffle body 1 above the through holes 101. The rotating shaft 9, the circular baffle 5 and the rotating shaft sleeve 3 are all made of insulating materials.
When the insulating baffle is installed, the insulating baffle is respectively installed on the outer sides of the static contacts on the bus side and the line side of the 10kV high-voltage switch cabinet. When the switching operation needs to test electricity, operation and maintenance personnel can operate according to the following steps:
(1) and inserting an insulating rod into a rotary shaft sleeve 3 in front of the insulating baffle outside a fixed contact on the bus side of the switch cabinet, and driving a circular baffle 5 inside a baffle main body 1 to rotate through a rotating shaft 9 so that the circular baffle 5 rotates to lean against a second positioning sheet.
(2) Insert elongated electroscope front end metal pole and test electricity to generating line side static contact in every through-hole 101, if electroscope makes a sound, prove this electroscope state is good, can test electricity operation to the static contact of power failure line side.
(3) And sequentially inserting the insulating rod into the rotating shaft sleeve 3 in front of the insulating baffle of the fixed contact at the line side of the switch cabinet, and driving the circular baffle 5 at the inner side of the baffle main body 1 to rotate through the rotating shaft 9 so that the circular baffle 5 rotates to lean against the second positioning sheet.
(4) And (3) sequentially extending a metal rod at the front end of the lengthened electroscope into the three through holes 101 of the circuit side baffle main body 1 to test the static contact at the side of the power failure circuit.
(5) After testing the electricity, insert every rotation axle sleeve 3 with the insulator spindle in proper order on, drive circular baffle 5 through pivot 9 and rotate its position to first locating piece, resume normal condition can.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides an insulating baffle that is used for direct electricity of testing of 10kV high tension switchgear, includes the baffle main part of being made by insulating material, characterized by: three through holes are uniformly distributed on the baffle main body, and each through hole corresponds to the central position of a static contact of the high-voltage switch cabinet; a rotatable rotating shaft is arranged below each through hole on the baffle main body, a circular baffle is fixed at the inner end of each rotating shaft, and the circular baffle shields the inner end of the corresponding through hole; the outer end of the rotating shaft is connected with a rotating shaft sleeve, a bayonet lock is arranged on the rotating shaft sleeve along the radial direction and is in clearance fit with a jack at the top of an insulating rod used when a grounding wire is arranged in a transformer substation, so that the insulating rod can be clamped on the rotating shaft sleeve and drive the rotating shaft sleeve to rotate; the round baffle is provided with a ball plunger close to the upper end of the outer edge of the round baffle, positioning pits are respectively arranged above each through hole at the back of the baffle main body, and when the round baffle shields the inner end of the corresponding through hole, steel balls of the ball plunger are respectively pushed into the corresponding positioning pits.
2. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet according to claim 1, wherein: the circular baffle is concentrically arranged with the corresponding through hole when shielding the inner end of the through hole, and the diameter of the circular baffle is 1.5-2 times of the inner diameter of the through hole.
3. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet as claimed in claim 1 or 2, wherein: two positioning sheets are respectively arranged at the periphery of each through hole at the back of the baffle main body, wherein the first positioning sheet is obliquely arranged, and the second positioning sheet is horizontally arranged; when the circular baffle shields the inner end of the corresponding through hole, the outer edge of the circular baffle leans against the first positioning sheet; the circular baffle is turned over and leans against the second positioning sheet when opening the corresponding through hole.
4. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet as claimed in claim 3, wherein: the cross sections of the two positioning pieces are U-shaped.
5. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet as claimed in claim 1 or 4, wherein: the rotating shaft is connected with the rotating shaft sleeve through threads, and the rotating shaft penetrates through the baffle main body and is limited through the clamp spring.
6. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet according to claim 5, wherein: warning boards are respectively arranged above the through holes in front of the baffle body.
7. The insulating baffle plate for direct electricity testing of the 10kV high-voltage switch cabinet as claimed in claim 1 or 6, wherein: the rotating shaft, the circular baffle and the rotating shaft sleeve are all made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504143.0A CN111293590A (en) | 2018-12-10 | 2018-12-10 | Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504143.0A CN111293590A (en) | 2018-12-10 | 2018-12-10 | Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111293590A true CN111293590A (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811504143.0A Pending CN111293590A (en) | 2018-12-10 | 2018-12-10 | Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet |
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| CN (1) | CN111293590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421466A (en) * | 2020-11-27 | 2021-02-26 | 国网天津市电力公司 | Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200395441Y1 (en) * | 2005-06-10 | 2005-09-16 | 에스티인 주식회사 | Shield apparatus of the equipment for an earthly machinery of road side |
| CN202134826U (en) * | 2011-06-02 | 2012-02-01 | 河南森源电气股份有限公司 | Electricity detection protective apparatus for switch cabinet |
| CN204696460U (en) * | 2015-06-08 | 2015-10-07 | 孟镇 | Easy inspection switch cabinet baffle plate |
| CN205846472U (en) * | 2016-07-21 | 2016-12-28 | 新疆特变电工自控设备有限公司 | A kind of high-tension switch cabinet of band electrical verification form |
-
2018
- 2018-12-10 CN CN201811504143.0A patent/CN111293590A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200395441Y1 (en) * | 2005-06-10 | 2005-09-16 | 에스티인 주식회사 | Shield apparatus of the equipment for an earthly machinery of road side |
| CN202134826U (en) * | 2011-06-02 | 2012-02-01 | 河南森源电气股份有限公司 | Electricity detection protective apparatus for switch cabinet |
| CN204696460U (en) * | 2015-06-08 | 2015-10-07 | 孟镇 | Easy inspection switch cabinet baffle plate |
| CN205846472U (en) * | 2016-07-21 | 2016-12-28 | 新疆特变电工自控设备有限公司 | A kind of high-tension switch cabinet of band electrical verification form |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421466A (en) * | 2020-11-27 | 2021-02-26 | 国网天津市电力公司 | Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet |
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Application publication date: 20200616 |