CN111641185B - Duplex outlet pressure plate - Google Patents
Duplex outlet pressure plate Download PDFInfo
- Publication number
- CN111641185B CN111641185B CN202010596829.8A CN202010596829A CN111641185B CN 111641185 B CN111641185 B CN 111641185B CN 202010596829 A CN202010596829 A CN 202010596829A CN 111641185 B CN111641185 B CN 111641185B
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- China
- Prior art keywords
- pressing plate
- connecting sheet
- platen
- wiring column
- terminal
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/28—Terminal boards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The embodiment of the application discloses pair export clamp plate includes: a platen base; a first pressing plate and a second pressing plate for transmitting the position signal information of the first pressing plate back to the relay protection device are arranged on the pressing plate base at intervals; the first pressing plate comprises a first upper binding post and a first lower binding post; the second pressing plate comprises a second upper wiring column and a second lower wiring column; the first upper binding post is connected with the first lower binding post through a first connecting sheet; the second upper wiring column is connected with the second lower wiring column through a second connecting sheet; the first connecting sheet is connected with the second connecting sheet through a fixed seat; the fixed seat is provided with a switching component for realizing the simultaneous connection of the double loops. The invention can achieve the purpose of synchronously putting the first pressing plate and the second pressing plate in and out, and indirectly obtains the putting in and out state of one pressing plate through the putting in and out state of the other pressing plate.
Description
Technical Field
The application relates to the technical field of relay protection and safety automatic devices in an electric power system, in particular to a duplex outlet pressing plate.
Background
With the continuous development of power grids, the safe operation of the power grids is particularly important. The relay protection and safety automatic device in the power system is important equipment in the safe operation of a power grid, and provides protection for the safe and stable operation of the power system. The switching of the pressing plate (also called 'connecting plate') in the equipment is a main item in the operation of the equipment, the pressing plate is used for connecting or disconnecting a certain loop, and is a bridge and a link for connecting a relay protection and a safety automatic device with external or internal wiring, and the protection function and the action outlet of the equipment can normally play roles. It is very important that a power system accident occurs due to the misthrow and retreat of the pressure plate.
Some types of pressing plates (such as outlet pressing plates) require indirect collection of the on-off state of the type of pressing plate because relevant regulations prohibit the detection of the on-off state of the type of pressing plate directly through an own electric circuit. The existing indirect mode is that the on-off state of the pressing plate is judged by means of electromagnetic or photoelectric signals, but a complex external judgment part is added, so that the pressing plate is easily influenced by the use environment (such as electromagnetic interference) to cause misjudgment, and the external judgment part added by the pressing plate is easy to generate faults in actual use to cause misjudgment, so that the reliability is low, and meanwhile, the operation and maintenance cost of the equipment is increased. Therefore, the invention provides a duplex outlet pressure plate.
Disclosure of Invention
The embodiment of the application provides a duplex outlet pressing plate, so that the reliability in practical use is improved, and the misjudgment caused by the external electromagnetic environment is avoided.
In view of this, the present application provides a duplex exit platen comprising: a platen base;
a first pressing plate and a second pressing plate for transmitting the position signal information of the first pressing plate back to the relay protection device are arranged on the pressing plate base at intervals;
the first pressing plate comprises a first upper binding post and a first lower binding post;
the second pressing plate comprises a second upper wiring column and a second lower wiring column;
the first upper binding post is connected with the first lower binding post through a first connecting sheet;
the second upper wiring column is connected with the second lower wiring column through a second connecting piece;
the first connecting sheet and the second connecting sheet are respectively pressed on the first upper wiring column, the first lower wiring column, the second upper wiring column and the second lower wiring column through compression nut heads;
the first connecting sheet is connected with the second connecting sheet through a fixed seat;
the fixed seat is provided with a switching component for realizing the simultaneous connection of the double loops.
Optionally, the retractable assembly comprises a retractable rod and a T-shaped handle;
the telescopic link is located the middle part of fixing base, just the one end of telescopic link with the fixing base rotates to be connected, the other end with T type handle fixed connection.
Optionally, a partition plate is arranged between the first pressing plate and the second pressing plate;
the partition plate is fixedly connected with the pressing plate base.
Optionally, the fixing seat is slidably connected to the partition plate.
Optionally, the bottom of the fixed seat is provided with a sliding chute matched with the partition plate;
the fixing seat is connected with the partition plate in a sliding mode through the sliding groove.
Optionally, the compression nut head crimps the first connection piece and the second connection piece onto the first upper terminal, the first lower terminal, the second upper terminal, and the second lower terminal through a crimping nut.
Optionally, the fixing seat is H-shaped;
the fixed seat is positioned above the first connecting sheet and the second connecting sheet, and two sides of the bottom of the fixed seat are respectively provided with a clamping groove for clamping the first connecting sheet and the second connecting sheet;
the first connecting piece and the second connecting piece are respectively clamped with the fixing seat.
Optionally, the external connection wires are respectively crimped on the first upper binding post, the first lower binding post, the second upper binding post and the second lower binding post through wire crimping assemblies.
Optionally, the crimping assembly is composed of a crimping washer, a crimping spring washer and a crimping nut.
Optionally, the pressure plate base is fixed on the panel by a fixing nut.
According to the technical scheme, the embodiment of the application has the following advantages: the first pressing plate and the second pressing plate used for transmitting the position signal information of the first pressing plate back to the relay protection device are arranged on the pressing plate base at intervals (namely the pressing plates connected with two channels are placed in one pressing plate), the first connecting piece of the first pressing plate and the second connecting piece of the second pressing plate are connected into a whole through the fixing base, synchronous motion is realized through the switching component on the fixing base, the pressing plate channel connection can be completed through one-time operation, the position signal pressing plate channel connection is completed simultaneously, operation difficulty and complexity are not increased, simultaneous connection of double loops is realized, in the operation of switching the pressing plates once, the position signal information of the pressing plates is transmitted back to the relay protection device simultaneously, whether switching is correct or not is judged by the device, and human errors are avoided. The duplex outlet pressing plate can accurately display the switching state of the pressing plate, the situation that the position of the pressing plate is displayed to be inconsistent with the actual state of the pressing plate is avoided, the reliability in actual use is improved, and misjudgment caused by the external electromagnetic environment is avoided.
Drawings
FIG. 1 is a perspective view of a duplex outlet platen in an embodiment of the present application;
FIG. 2 is a schematic view of a connection structure of a throw-in and withdraw assembly in the embodiment of the present application;
FIG. 3 is a schematic structural view of the retractable assembly after being lifted up according to the embodiment of the present application;
FIG. 4 is a top view of a platen base in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a gland nut head in an embodiment of the present application;
FIG. 6 is a front view of a duplex exit platen in an embodiment of the present application;
wherein the reference numerals are:
1-a pressing plate base, 2-a first upper binding post, 3-a first lower binding post, 4-a second upper binding post, 5-a second lower binding post, 6-a first connecting piece, 7-a second connecting piece, 8-a fixed seat, 9-a throwing and withdrawing assembly, 10-a compression nut head, 11-a partition plate, 12-a line pressing assembly, 13-a crimping nut, 81-a sliding groove, 91-a telescopic rod, 92-T-shaped handles, 121-a line pressing nut, 122-a line pressing gasket and 123-a line pressing spring gasket.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application provides one embodiment of a duplex exit platen, with particular reference to FIG. 1.
The duplex outlet platen in this embodiment includes: the clamp plate base 1, the interval is provided with first clamp plate and is used for passing back relay protection device's second clamp plate with the position signal information of first clamp plate on the clamp plate base 1, first clamp plate includes first upper terminal 2 and first lower terminal 3, the second clamp plate includes terminal 4 and second lower terminal post 5 on the second, first upper terminal 2 is connected through first connection piece 6 with first lower terminal 3, second upper terminal 4 is connected through second connection piece 7 with second lower terminal post 5, first connection piece 6 and second connection piece 7 are respectively through compressing tightly first upper terminal 2 of nut 10 crimping, first lower terminal 3, on second upper terminal 4 and the second lower terminal post 5, first connection piece 6 is connected through fixing base 8 with second connection piece 7, be provided with on the fixing base 8 and be used for realizing that the throw that double circuit connects back subassembly 9 simultaneously.
It should be noted that: the first pressing plate and the second pressing plate used for transmitting position signal information of the first pressing plate back to the relay protection device are arranged on the pressing plate base 1 at intervals (namely, the pressing plates connected with two channels are placed in one pressing plate), the first connecting piece 6 of the first pressing plate and the second connecting piece 7 of the second pressing plate are connected into a whole through the fixing seat 8, synchronous motion is realized through the throw-in and retreat assembly 9 on the fixing seat 8, the pressing plate channel connection can be completed through one-time operation, the position signal pressing plate channel connection is completed simultaneously, operation difficulty and complexity are not increased, simultaneous connection of double loops is realized, in one-time throw-in and retreat operation of the pressing plates, the position signal information of the pressing plates is transmitted back to the relay protection device, whether throw-in and retreat is correct or not judged by the device, and artificial errors are avoided. The duplex outlet pressing plate can accurately display the switching state of the pressing plate, the situation that the position of the pressing plate is displayed to be inconsistent with the actual state of the pressing plate is avoided, the reliability in actual use is improved, and misjudgment caused by the external electromagnetic environment is avoided.
The above is a first embodiment of a duplex outlet pressure plate provided in the embodiments of the present application, and the following is a second embodiment of a duplex outlet pressure plate provided in the embodiments of the present application, please refer to fig. 1 to 6 specifically.
The duplex outlet platen in this embodiment includes: the clamp plate base 1, the interval is provided with first clamp plate and is used for passing back relay protection device's second clamp plate with the position signal information of first clamp plate on the clamp plate base 1, first clamp plate includes first upper terminal 2 and first terminal 3 down, the second clamp plate includes terminal 4 and second terminal 5 down on the second, first upper terminal 2 is connected through first connection piece 6 with first terminal 3 down, terminal 4 is connected through second connection piece 7 with second terminal 5 down on the second, first connection piece 6 and second connection piece 7 are respectively through compressing tightly first 10 crimping of nut 2, first terminal 3 down, on second upper terminal 4 and second terminal 5 down, first connection piece 6 is connected through fixing base 8 with second connection piece 7, be provided with on the fixing base 8 and be used for realizing throwing of double-circuit simultaneous connection moves back subassembly 9.
As shown in fig. 2 and 3, the retractable assembly 9 includes a retractable rod 91 and a T-shaped handle 92, the retractable rod 91 is located in the middle of the fixing base 8, one end of the retractable rod 91 is rotatably connected to the fixing base 8, and the other end of the retractable rod 91 is fixedly connected to the T-shaped handle 92.
During the use, unscrew and compress tightly the nut head 10, control is thrown and is moved back subassembly 9 from lower to upper movement, and T type handle 92 elongatable upwards is circular arc motion to first upper binding post 2 and the second upper binding post 4's top, releases T type handle 92, and T type handle 92 can contract the card back and on first upper binding post 2 and the second upper binding post 4, then the fastening compresses tightly nut head 10, and at this moment, the clamp plate is in and drops into the state. Similarly, when the throwing-withdrawing assembly 9 moves from top to bottom, the first lower wiring column 3 and the second lower wiring column 5 can be clamped by the T-shaped handle 92, and the pressing plate is in a withdrawing state at the moment.
It should be noted that: the on-site worker can visually observe the on-off state of the pressing plate by observing the position of the T-shaped handle 92, so that human errors are greatly reduced.
As shown in figure 4, a partition plate 11 is arranged between the first pressing plate and the second pressing plate, the partition plate 11 is fixedly connected with the pressing plate base 1, the left connecting channel and the right connecting channel can be isolated by arranging the partition plate 11, left and right mistaken communication is prevented, and safety is improved.
The fixed seat 8 can be connected with the clapboard 11 in a sliding way. Specifically, as shown in fig. 3, the bottom of the fixing base 8 is provided with a sliding groove 81 matched with the partition plate 11, wherein the depth of the sliding groove 81 is greater than 5 mm, the fixing base 8 is connected with the partition plate 11 in a sliding manner through the sliding groove 81, the fixing base 8 cannot deviate in the sliding process by arranging the sliding groove 81, and meanwhile, the fixing base 8 cannot be separated from the partition plate 11 under the loose condition, so that the left and right wrong touch is caused, and the operation safety is improved.
As shown in fig. 3 and 5, the compression nut head 10 presses the first connection piece 6 and the second connection piece 7 to the first upper terminal 2, the first lower terminal 3, the second upper terminal 4 and the second lower terminal 5 through the compression nut 13, and it is understood that the compression nut 13 may be replaced by a pressed piece, which is not limited herein.
It should be noted that: through adopting crimping nut 13, compress tightly nut head 10 through compressing tightly with first connection piece 6 and the crimping nut 13 of second connection piece 7 crimping on terminal 5 under first terminal 2, first terminal 3, the second, can effectual contact, can not cause the virtual joint on terminal 4 and the second.
As shown in fig. 2 and 3, the fixing base 8 is H-shaped, the fixing base 8 is located above the first connecting sheet 6 and the second connecting sheet 7, the two sides of the bottom of the fixing base 8 are respectively provided with a clamping groove for clamping the first connecting sheet 6 and the second connecting sheet 7, and the first connecting sheet 6 and the second connecting sheet 7 are respectively clamped with the fixing base 8.
It should be noted that: adopt the fixing base 8 of H type, the bottom both sides of fixing base 8 are embedded into first connection piece 6 and second connection piece 7 respectively fixedly, and fixing base 8 has just constituted a semi-enclosed insulation system like this, can make the metal connection piece encircleed in fixing base 8, and then makes the operator in the operation can not have the danger of electrocuteeing, increases the security of using.
External wiring is respectively pressed on the first upper wiring terminal 2, the first lower wiring terminal 3, the second upper wiring terminal 4 and the second lower wiring terminal 5 through the wire pressing assembly 12.
As shown in fig. 6, the wire pressing assembly 12 is composed of two wire pressing pads 122, one wire pressing spring pad 123 and two wire pressing nuts 121, specifically, the wire pressing assembly 12 includes two wire pressing pads 122, one wire pressing spring pad 123 and two wire pressing nuts 121, an external connection is crimped between the two wire pressing pads 122, the two wire pressing nuts 121 are respectively located outside the two wire pressing pads 122 and are compressed, and the wire pressing spring pad 123 is disposed between the wire pressing pad 122 below and the wire pressing nut 121 below.
The pressing plate base 1 is fixed on the panel through a fixing nut.
The duplex outlet pressure plate improves the reliability in practical use, enhances the anti-interference capability, reduces the maintenance cost in practical use, and reduces the workload and artificial errors of field maintenance personnel.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. A duplex outlet platen, comprising: a platen base;
a first pressing plate and a second pressing plate for transmitting the position signal information of the first pressing plate back to the relay protection device are arranged on the pressing plate base at intervals;
the first pressing plate comprises a first upper binding post and a first lower binding post;
the second pressing plate comprises a second upper wiring column and a second lower wiring column;
the first upper binding post is connected with the first lower binding post through a first connecting sheet;
the second upper wiring column is connected with the second lower wiring column through a second connecting piece;
the first connecting sheet and the second connecting sheet are respectively pressed on the first upper wiring column, the first lower wiring column, the second upper wiring column and the second lower wiring column through compression nut heads;
the first connecting sheet is connected with the second connecting sheet through a fixed seat;
the fixed seat is provided with a switching component for realizing the simultaneous connection of the double loops;
the throwing and withdrawing assembly comprises a telescopic rod and a T-shaped handle;
the telescopic link is located the middle part of fixing base, just the one end of telescopic link with the fixing base rotates to be connected, the other end with T type handle fixed connection.
2. The dual outlet platen of claim 1, wherein a baffle is disposed between the first platen and the second platen;
the partition plate is fixedly connected with the pressing plate base.
3. The tandem outlet platen of claim 2 wherein the holders are slidably connected to the partition.
4. The duplex outlet platen according to claim 3, wherein a chute matching with the partition plate is provided at the bottom of the fixing base;
the fixing seat is connected with the partition plate in a sliding mode through the sliding groove.
5. The duplex outlet platen according to claim 1, wherein the compression nut head crimps the first and second connection tabs over the first upper terminal, the first lower terminal, the second upper terminal, and the second lower terminal via crimp nuts.
6. The duplex outlet platen according to claim 1, wherein the holders are H-shaped;
the fixed seat is positioned above the first connecting sheet and the second connecting sheet, and two sides of the bottom of the fixed seat are respectively provided with a clamping groove for clamping the first connecting sheet and the second connecting sheet;
the first connecting piece and the second connecting piece are respectively clamped with the fixing seat.
7. The duplex outlet platen according to claim 1, wherein external wiring is crimped onto the first upper terminal, the first lower terminal, the second upper terminal, and the second lower terminal, respectively, by a crimping assembly.
8. The twin outlet platen of claim 7 wherein the press line assembly is comprised of a press line washer, a press line spring washer and a press line nut.
9. The duplex outlet platen according to claim 1, wherein the platen base is secured to the face plate by a retaining nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596829.8A CN111641185B (en) | 2020-06-28 | 2020-06-28 | Duplex outlet pressure plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596829.8A CN111641185B (en) | 2020-06-28 | 2020-06-28 | Duplex outlet pressure plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111641185A CN111641185A (en) | 2020-09-08 |
| CN111641185B true CN111641185B (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010596829.8A Active CN111641185B (en) | 2020-06-28 | 2020-06-28 | Duplex outlet pressure plate |
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| CN (1) | CN111641185B (en) |
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| JPH0923539A (en) * | 1995-07-10 | 1997-01-21 | Yazaki Corp | Electric connection box for common use in hi-lo grade |
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| JP6554611B2 (en) * | 2015-08-31 | 2019-07-31 | ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ | relay |
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| CN209860572U (en) * | 2019-05-28 | 2019-12-27 | 国网福建省电力有限公司 | Transformer substation can realize linkage clamp plate of state monitoring |
| CN111313358B (en) * | 2020-03-18 | 2022-09-16 | 国网湖南省电力有限公司 | Double-contact scribing type relay protection pressing plate with state acquisition function |
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| CN202121304U (en) * | 2011-07-12 | 2012-01-18 | 珠海优特电力科技股份有限公司 | Electric power pressure plate having switching on/off state detecting device |
| CN106298322A (en) * | 2016-07-20 | 2017-01-04 | 国网江苏省电力公司南通供电公司 | A kind of synchronism switching multichannel pressing plate |
| CN108808339A (en) * | 2018-07-12 | 2018-11-13 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device and electrical power wiring device |
| KR101993600B1 (en) * | 2019-02-26 | 2019-06-27 | 주식회사 대연전력기술 | 96T Protection Relay With Remote Reset |
| CN210201556U (en) * | 2019-06-03 | 2020-03-27 | 国网安徽省电力有限公司检修分公司 | Transformer substation's clamp plate is thrown and is moved back state on-line monitoring device |
| CN110849396A (en) * | 2019-11-19 | 2020-02-28 | 国网浙江淳安县供电有限公司 | Pressing plate on-off state detection device and pressing plate anti-misoperation system |
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| Publication number | Publication date |
|---|---|
| CN111641185A (en) | 2020-09-08 |
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