CN111341580A - Three-position dual-power transfer switch - Google Patents
Three-position dual-power transfer switch Download PDFInfo
- Publication number
- CN111341580A CN111341580A CN202010188964.9A CN202010188964A CN111341580A CN 111341580 A CN111341580 A CN 111341580A CN 202010188964 A CN202010188964 A CN 202010188964A CN 111341580 A CN111341580 A CN 111341580A
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- panel
- sliding block
- rod
- pin
- indicating lamp
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a three-position dual-power transfer switch, which comprises a shell, a transfer component and an indicating device, wherein the shell is provided with a first end and a second end; the casing includes bottom plate and panel, the conversion subassembly sets up on the bottom plate, the conversion subassembly includes first telescopic link and second telescopic link, indicating device is including setting up the first pilot lamp box on the panel outer wall, second pilot lamp box and third pilot lamp box, be equipped with pilot lamp and battery in each pilot lamp box, when first telescopic link and second telescopic link are all in the withdrawal state, change over switch is in two branch states, pilot lamp on the second pilot lamp box lights, when first telescopic link is in the state of stretching out, the common power switch-on, and the pilot lamp on the first pilot lamp box lights, when the second telescopic link is in the state of stretching out, stand-by power switch-on, and the pilot lamp on the third pilot lamp box lights. The three-position dual-power transfer switch can obviously indicate the working state of the transfer switch, provide real and reliable indication information for operation and maintenance personnel, and improve the safety.
Description
Technical Field
The invention relates to a three-position dual-power transfer switch.
Background
The dual-power automatic transfer switch's usage is simply all the way standby all the way commonly used, when the sudden failure of common power or power failure, through dual power transfer switch, automatically puts into stand-by power supply, and at present, dual power automatic transfer switch comprises body and controller, adopts the circuit breaker as executive component, breaks down and carries out the automatic switch-over between the power because of power all the way. However, the existing dual-power automatic transfer switch has single indication and is not obvious enough in prompt, so that the electricity utilization is unsafe.
Disclosure of Invention
The invention aims to provide a three-position dual-power transfer switch which is reasonable in structure, can obviously indicate the working state of the dual-power transfer switch, and provides real and reliable indication information for operation and maintenance personnel, so that the safety is improved.
In order to achieve the purpose, the technical scheme of the invention is to design a three-position dual-power transfer switch, which comprises a shell, a transfer component and an indicating device;
the shell comprises a bottom plate and a panel vertically connected to the bottom plate, a plurality of reinforcing ribs are arranged at the joint of the bottom plate and the panel, the conversion assembly is arranged on the bottom plate, a first circuit breaker and a second circuit breaker are arranged on the bottom plate and symmetrically arranged on two sides of the conversion assembly, the conversion assembly comprises a mounting seat, a first telescopic rod and a second telescopic rod are arranged at the top of the mounting seat and are both arranged towards the panel, the first telescopic rod is arranged close to the first circuit breaker and comprises a first fixed rod and a first movable rod, the first movable rod is sleeved in the first fixed rod, a first push rod is vertically connected to the side part of the first movable rod, a first pushing piece is arranged at the end part of the first push rod, far away from the first movable rod, and is positioned above the first circuit breaker, the first pushing piece is of a C-shaped structure, a first deflector rod positioned in an opening of the first pushing piece is arranged on the first breaker, the second telescopic rod comprises a second fixed rod and a second movable rod, the second movable rod is sleeved in the second fixed rod, a second push rod is vertically connected to the side part of the second movable rod, a second pushing piece is arranged at the end part, far away from the second movable rod, of the second push rod, the second pushing piece is positioned above the second breaker, the second pushing piece is of a C-shaped structure, and a second deflector rod positioned in the opening of the second pushing piece is arranged on the second breaker;
the indicating device comprises a first indicating lamp box, a second indicating lamp box and a third indicating lamp box which are sequentially arranged on the outer wall of a panel along the horizontal direction, wherein a first indicating lamp and a first battery are arranged in the first indicating lamp box, a cathode pin of the first indicating lamp is connected with a cathode of the first battery, an anode pin of the first indicating lamp penetrates through the panel and extends into the shell, a second indicating lamp and a second battery are arranged in the second indicating lamp box, a cathode pin and an anode pin of the second indicating lamp both penetrate through the panel and extend into the shell, a third indicating lamp and a third battery are arranged in the third indicating lamp box, a cathode pin of the third indicating lamp is connected with a cathode of the third battery, an anode pin of the third indicating lamp penetrates through the panel and extends into the shell, a fixing block is arranged on the inner wall of the panel and is positioned between the anode pin and the cathode pin of the second indicating lamp, the inner wall of the panel is connected with a first sliding block and a second sliding block in a sliding manner, the first sliding block is positioned between the fixed block and the anode pin of the first indicator lamp, the first sliding block is provided with a first conductive block corresponding to the anode pin of the first indicator lamp, the first conductive block is connected with the anode of the first battery through a lead, the end part of the first movable rod is provided with a first slotting tool, the outer side of the end part of the first slotting tool is provided with a first inclined plane, the first sliding block is provided with a first groove for the first slotting tool to insert, the groove wall of the first groove is provided with a second inclined plane corresponding to the first inclined plane, the second sliding block is positioned between the fixed block and the anode pin of the third indicator lamp, the second sliding block is provided with a second conductive block corresponding to the anode pin of the third indicator lamp, the second conductive block is connected with the anode of the third battery through a lead, and the end part of the second movable rod is provided with a second slotting tool, a third inclined plane is arranged on the outer side of the end part of the second slotting tool, a second groove for the second slotting tool to insert is arranged on the second sliding block, a fourth inclined plane corresponding to the third inclined plane is arranged on the groove wall of the second groove, a reset spring is connected between the first sliding block and the fixed block and between the second sliding block and the fixed block respectively, a third conductive block which is contacted with a negative electrode pin of the second indicator lamp is arranged on the first sliding block, the third conductive block is connected with the negative electrode of the second battery through a wire, a fourth conductive block which is contacted with a positive electrode pin of the second indicator lamp is arranged on the second sliding block, the fourth conductive block is connected with the positive electrode of the second battery through a wire, and a wire passing hole for the wire to pass through is arranged on the panel;
the bottom plate is provided with a guide plate located between the mounting seat and the panel, the first slotting tool and the second slotting tool penetrate through the guide plate respectively, and the guide plate is provided with a sliding hole for the first slotting tool and the second slotting tool to penetrate through.
Preferably, the first slider and the second slider are both insulators.
Preferably, the outer wall of the panel is provided with a first label, a second label and a third label, the first label is located below the first indicator light box, the second label is located below the second indicator light box, and the third label is located below the third indicator light box.
Preferably, the first telescopic rod and the second telescopic rod are both electric telescopic rods.
The invention has the advantages and beneficial effects that: the three-position dual-power transfer switch is reasonable in structure, can obviously indicate the working state of the dual-power transfer switch, provides real and reliable indication information for operation and maintenance personnel, and accordingly improves safety.
When the first telescopic link and the second telescopic link are both in a retracting state, the change-over switch is in a double-division state, the negative electrode pin and the positive electrode pin of the second indicator light are respectively contacted with the third conductive block and the fourth conductive block, and the third conductive block and the fourth conductive block are respectively connected with the negative electrode and the positive electrode of the second battery, so that the second indicator light is electrified and lightened.
When a common power supply needs to be switched on, the first movable rod of the first telescopic rod extends out, so that the first driving lever is pushed downwards through the first pushing piece to enable the common power supply to be switched on, in the process that the first movable rod extends out, the first inserting knife is driven to be inserted into the first groove of the first sliding block, the first sliding block is driven to slide towards the direction of the positive pin of the first indicator lamp through the matching of the first inclined surface and the second inclined surface, the third conductive block on the first sliding block is separated from the negative pin of the second indicator lamp, the second indicator lamp is extinguished, then the first conductive block on the first sliding block is in contact with the positive pin of the first indicator lamp, the first indicator lamp is powered on and is lightened, and the spring is in a stretching state at the moment.
When a standby power supply needs to be switched on, the first movable rod of the first telescopic rod retracts, so that the first deflector rod is pushed upwards through the first pushing piece to switch off a common power supply, the first sliding block resets under the action of elastic restoring force of the spring in the process of retracting the first movable rod, the first conducting block on the first sliding block is separated from the positive pin of the first indicator lamp at the moment, the first indicator lamp is turned off, the second indicator lamp is powered on and turned on, the second movable rod of the second telescopic rod extends out next to the first movable rod, so that the second deflector rod is pushed downwards through the second pushing piece to switch on the standby power supply, in the process of extending the second movable rod, the second inserting knife is driven to be inserted into the second groove of the second sliding block, the second sliding block is driven to slide towards the pin direction of the third indicator lamp through the matching of the third inclined surface and the fourth inclined surface, so that the fourth conducting block on the second sliding block is separated from the positive pin of the second indicator lamp, the second indicator light is turned off, then the second conductive block on the second sliding block is in contact with the positive pin of the third indicator light, and the third indicator light is powered on and turned on.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic view of a panel according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
as shown in fig. 1, 2 and 3, a three-position dual power transfer switch includes a housing, a transfer assembly and an indicating device;
the shell comprises a bottom plate 1 and a panel 2 vertically connected to the bottom plate 1, a plurality of reinforcing ribs 3 are arranged at the joint of the bottom plate 1 and the panel 2, the conversion assembly is arranged on the bottom plate 1, a first circuit breaker 4 and a second circuit breaker 5 are arranged on the bottom plate 1, the first circuit breaker 4 and the second circuit breaker 5 are symmetrically arranged at two sides of the conversion assembly, the conversion assembly comprises a mounting seat 6, a first telescopic rod and a second telescopic rod are arranged at the top of the mounting seat 6, the first telescopic rod and the second telescopic rod are both arranged towards the panel 2, the first telescopic rod is arranged close to the first circuit breaker 4, the first telescopic rod comprises a first fixed rod 7 and a first movable rod 8, the first movable rod 8 is sleeved in the first fixed rod 7, a first push rod 9 is vertically connected to the side part of the first movable rod 8, and a first push member 10 is arranged at the end part of the first push rod 9 far away from the first movable rod 8, the first pushing part 10 is positioned above the first breaker 4, the first pushing part 10 is of a C-shaped structure, a first driving lever 11 positioned in an opening of the first pushing part 10 is arranged on the first breaker 4, the second telescopic rod comprises a second fixed rod 12 and a second movable rod 13, the second movable rod 13 is sleeved in the second fixed rod 12, a second push rod 14 is vertically connected to the side part of the second movable rod 13, a second pushing part 15 is arranged at the end part, far away from the second movable rod 13, of the second push rod 14, the second pushing part 15 is positioned above the second breaker 5, the second pushing part 15 is of a C-shaped structure, and a second driving lever 16 positioned in an opening of the second pushing part 15 is arranged on the second breaker 5;
the indicating device comprises a first indicator lamp box 17, a second indicator lamp box 18 and a third indicator lamp box 19 which are sequentially arranged on the outer wall of a panel 2 along the horizontal direction, a first indicator lamp 20 and a first battery 21 are arranged in the first indicator lamp box 17, a negative electrode pin 22 of the first indicator lamp 20 is connected with the negative electrode of the first battery 21, a positive electrode pin 23 of the first indicator lamp 20 penetrates through the panel 2 and extends into the shell, a second indicator lamp 24 and a second battery 25 are arranged in the second indicator lamp box 28, a negative electrode pin 22 and a positive electrode pin 23 of the second indicator lamp 24 both penetrate through the panel 2 and extend into the shell, a third indicator lamp 26 and a third battery 27 are arranged in the third indicator lamp box 19, a negative electrode pin 22 of the third indicator lamp 26 is connected with the negative electrode of the third battery 27, a positive electrode pin 23 of the third indicator lamp 26 penetrates through the panel 2 and extends into the shell, a fixed block 28 is arranged on the inner wall of the panel 2, the fixed block 28 is positioned between the positive pin 23 and the negative pin 22 of the second indicator light 24, a first sliding block 29 and a second sliding block 30 are connected to the inner wall of the panel 2 in a sliding manner, the first sliding block 29 is positioned between the fixed block 28 and the positive pin 23 of the first indicator light 20, a first conductive block 31 corresponding to the positive pin 23 of the first indicator light 20 is arranged on the first sliding block 29, the first conductive block 31 is connected with the positive electrode of the first battery 21 through a lead, a first slotting tool 32 is arranged at the end part of the first movable rod 8, a first inclined plane 33 is arranged at the outer side of the end part of the first slotting tool 32, a first groove 34 for the first slotting tool 32 to be inserted into is arranged on the first sliding block 29, a second inclined plane 35 corresponding to the first inclined plane 33 is arranged on the groove wall of the first groove 34, the second sliding block 30 is positioned between the fixed block 28 and the positive pin 23 of the third indicator light 26, the second slider 30 is provided with a second conductive block 36 corresponding to the positive pin 23 of the third indicator light 26, the second conductive block 36 is connected with the positive electrode of the third battery 27 through a wire, the end of the second movable rod 13 is provided with a second slotting tool 37, the outer side of the end of the second slotting tool 37 is provided with a third inclined surface 38, the second slider 30 is provided with a second groove 39 for the second slotting tool 37 to insert, the groove wall of the second groove 39 is provided with a fourth inclined surface 40 corresponding to the third inclined surface 38, return springs 41 are respectively connected between the first slider 29 and the second slider 30 and the fixed block 28, the first slider 29 is provided with a third conductive block 42 contacting with the negative pin 22 of the second indicator light 24, the third conductive block 42 is connected with the negative electrode of the second battery 25 through a wire, the second slider 30 is provided with a fourth conductive block 43 contacting with the positive pin 23 of the second indicator light 24, the fourth conductive block 43 is connected with the positive electrode of the second battery 25 through a wire, and a wire through hole for the wire to pass through is arranged on the panel 2;
the bottom plate 1 is provided with a guide plate 44 located between the mounting seat 6 and the panel 2, the first slotting tool 32 and the second slotting tool 37 respectively penetrate through the guide plate 44, and the guide plate 44 is provided with a sliding hole for the first slotting tool 32 and the second slotting tool 37 to penetrate through.
The first slider 29 and the second slider 30 are both insulators.
The outer wall of the panel 2 is provided with a first label 45, a second label 46 and a third label 47, the first label 45 is positioned below the first indicator light box 17, the second label 46 is positioned below the second indicator light box 18, and the third label 47 is positioned below the third indicator light box 19.
The first telescopic rod and the second telescopic rod are both electric telescopic rods.
The invention has the advantages and beneficial effects that: the three-position dual-power transfer switch is reasonable in structure, can obviously indicate the working state of the dual-power transfer switch, provides real and reliable indication information for operation and maintenance personnel, and accordingly improves safety.
When the first telescopic rod and the second telescopic rod are both in the retraction state, the change-over switch is in the double-division state, at this time, the negative electrode pin 22 and the positive electrode pin 23 of the second indicator light 24 are respectively contacted with the third conductive block 42 and the fourth conductive block 43, and as the third conductive block 42 and the fourth conductive block 43 are respectively connected with the negative electrode and the positive electrode of the second battery 25, the second indicator light 24 is electrified and lightened.
When a common power supply needs to be connected, the first movable rod 8 of the first telescopic rod extends out, so that the first poking rod 11 is pushed downwards by the first pushing piece 10 to connect the common power supply, and in the process that the first movable rod 8 extends out, the first poking knife 32 is driven to be inserted into the first groove 34 of the first sliding block 29, the first sliding block 29 is driven to slide towards the direction of the positive pin 23 of the first indicator light 20 through the matching of the first inclined surface 33 and the second inclined surface 35, so that the third conductive block 42 on the first sliding block 29 is separated from the negative pin 22 of the second indicator light 24, the second indicator light 24 is turned off, then the first conductive block 31 on the first sliding block 29 is in contact with the positive pin 23 of the first indicator light 20, the first indicator light 20 is powered on and turned on, and the spring 41 is in a stretching state at this time.
When the standby power supply needs to be switched on, the first movable rod 8 of the first telescopic rod retracts, so that the first shift lever 11 is pushed upwards by the first pushing piece 10, so that the common power supply is switched off, in the process of retracting the first movable rod 8, the first sliding block 29 is reset under the action of the elastic restoring force of the spring 41, at the moment, the first conducting block 31 on the first sliding block 29 is separated from the positive pole pin 23 of the first indicator light 20, the first indicator light 20 is turned off, the second indicator light 24 is electrified and turned on, and then the second movable rod 13 of the second telescopic rod extends, so that the second shift lever 16 is pushed downwards by the second pushing piece 15, so that the standby power supply is switched on, in the process of extending the second movable rod 13, the second inserting knife 37 is driven to be inserted into the second groove 39 of the second sliding block 30, and the second sliding block 30 is driven to slide towards the positive pole pin 23 of the third indicator light 26 by the cooperation of the third inclined plane 38 and the fourth inclined plane 40, the fourth conductive block 43 on the second slider 30 is separated from the positive terminal pin 23 of the second indicator light 24, the second indicator light 24 is turned off, then the second conductive block 36 on the second slider 30 is in contact with the positive terminal pin 23 of the third indicator light 26, and the third indicator light 26 is turned on.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A three-position dual-power transfer switch is characterized by comprising a shell, a transfer component and an indicating device;
the shell comprises a bottom plate and a panel vertically connected to the bottom plate, a plurality of reinforcing ribs are arranged at the joint of the bottom plate and the panel, the conversion assembly is arranged on the bottom plate, a first circuit breaker and a second circuit breaker are arranged on the bottom plate and symmetrically arranged on two sides of the conversion assembly, the conversion assembly comprises a mounting seat, a first telescopic rod and a second telescopic rod are arranged at the top of the mounting seat and are both arranged towards the panel, the first telescopic rod is arranged close to the first circuit breaker and comprises a first fixed rod and a first movable rod, the first movable rod is sleeved in the first fixed rod, a first push rod is vertically connected to the side part of the first movable rod, a first pushing piece is arranged at the end part of the first push rod, far away from the first movable rod, and is positioned above the first circuit breaker, the first pushing piece is of a C-shaped structure, a first deflector rod positioned in an opening of the first pushing piece is arranged on the first breaker, the second telescopic rod comprises a second fixed rod and a second movable rod, the second movable rod is sleeved in the second fixed rod, a second push rod is vertically connected to the side part of the second movable rod, a second pushing piece is arranged at the end part, far away from the second movable rod, of the second push rod, the second pushing piece is positioned above the second breaker, the second pushing piece is of a C-shaped structure, and a second deflector rod positioned in the opening of the second pushing piece is arranged on the second breaker;
the indicating device comprises a first indicating lamp box, a second indicating lamp box and a third indicating lamp box which are sequentially arranged on the outer wall of a panel along the horizontal direction, wherein a first indicating lamp and a first battery are arranged in the first indicating lamp box, a cathode pin of the first indicating lamp is connected with a cathode of the first battery, an anode pin of the first indicating lamp penetrates through the panel and extends into the shell, a second indicating lamp and a second battery are arranged in the second indicating lamp box, a cathode pin and an anode pin of the second indicating lamp both penetrate through the panel and extend into the shell, a third indicating lamp and a third battery are arranged in the third indicating lamp box, a cathode pin of the third indicating lamp is connected with a cathode of the third battery, an anode pin of the third indicating lamp penetrates through the panel and extends into the shell, a fixing block is arranged on the inner wall of the panel and is positioned between the anode pin and the cathode pin of the second indicating lamp, the inner wall of the panel is connected with a first sliding block and a second sliding block in a sliding manner, the first sliding block is positioned between the fixed block and the anode pin of the first indicator lamp, the first sliding block is provided with a first conductive block corresponding to the anode pin of the first indicator lamp, the first conductive block is connected with the anode of the first battery through a lead, the end part of the first movable rod is provided with a first slotting tool, the outer side of the end part of the first slotting tool is provided with a first inclined plane, the first sliding block is provided with a first groove for the first slotting tool to insert, the groove wall of the first groove is provided with a second inclined plane corresponding to the first inclined plane, the second sliding block is positioned between the fixed block and the anode pin of the third indicator lamp, the second sliding block is provided with a second conductive block corresponding to the anode pin of the third indicator lamp, the second conductive block is connected with the anode of the third battery through a lead, and the end part of the second movable rod is provided with a second slotting tool, a third inclined plane is arranged on the outer side of the end part of the second slotting tool, a second groove for the second slotting tool to insert is arranged on the second sliding block, a fourth inclined plane corresponding to the third inclined plane is arranged on the groove wall of the second groove, a reset spring is connected between the first sliding block and the fixed block and between the second sliding block and the fixed block respectively, a third conductive block which is contacted with a negative electrode pin of the second indicator lamp is arranged on the first sliding block, the third conductive block is connected with the negative electrode of the second battery through a wire, a fourth conductive block which is contacted with a positive electrode pin of the second indicator lamp is arranged on the second sliding block, the fourth conductive block is connected with the positive electrode of the second battery through a wire, and a wire passing hole for the wire to pass through is arranged on the panel;
the bottom plate is provided with a guide plate located between the mounting seat and the panel, the first slotting tool and the second slotting tool penetrate through the guide plate respectively, and the guide plate is provided with a sliding hole for the first slotting tool and the second slotting tool to penetrate through.
2. The three-position dual power transfer switch of claim 1, wherein the first slider and the second slider are both insulators.
3. The three-position dual power transfer switch of claim 2, wherein a first label, a second label and a third label are disposed on an outer wall of the panel, the first label is disposed under the first indicator light box, the second label is disposed under the second indicator light box, and the third label is disposed under the third indicator light box.
4. The three-position dual power transfer switch of claim 3, wherein the first and second telescoping rods are both electrically powered telescoping rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188964.9A CN111341580B (en) | 2020-03-18 | 2020-03-18 | Three-position dual-power transfer switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188964.9A CN111341580B (en) | 2020-03-18 | 2020-03-18 | Three-position dual-power transfer switch |
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| CN111341580A true CN111341580A (en) | 2020-06-26 |
| CN111341580B CN111341580B (en) | 2022-02-18 |
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| CN202010188964.9A Active CN111341580B (en) | 2020-03-18 | 2020-03-18 | Three-position dual-power transfer switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324230A (en) * | 2021-06-08 | 2021-08-31 | 国网河北省电力有限公司保定供电分公司 | Indicator lamp device and distribution box |
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| CN106548885A (en) * | 2016-10-26 | 2017-03-29 | 南方电网科学研究院有限责任公司 | A isolator and earthing switch indicating device for nitrogen gas cubical switchboard |
| CN208142055U (en) * | 2018-05-04 | 2018-11-23 | 施耐德电器工业公司 | The position indicator and dual-power transfer switch of dual-power transfer switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324230A (en) * | 2021-06-08 | 2021-08-31 | 国网河北省电力有限公司保定供电分公司 | Indicator lamp device and distribution box |
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