CN221633251U - New energy ring main unit - Google Patents
New energy ring main unit Download PDFInfo
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- CN221633251U CN221633251U CN202420045047.9U CN202420045047U CN221633251U CN 221633251 U CN221633251 U CN 221633251U CN 202420045047 U CN202420045047 U CN 202420045047U CN 221633251 U CN221633251 U CN 221633251U
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- main unit
- ring main
- breaker
- circuit breaker
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- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims description 26
- 239000004020 conductor Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000007717 exclusion Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The disclosure relates to the technical field of new energy high-voltage switches, in particular to a new energy ring main unit. The ring main unit comprises a three-station mechanism, a direct-acting three-station switch, a circuit breaker mechanism, a circuit breaker switch and an interlocking mechanism; when the switch cabinet is in the grounding overhaul, the switch knob can be blocked after the cable chamber door is opened, so that the circuit breaker mechanism is prevented from being broken by mistake; after the grounding switch is grounded, when the breaker switch is closed, after the switch cabinet is effectively grounded, the cable chamber door can be opened to prevent the cable chamber door from entering an electrified interval, the pulling rod is limited to slide left and right to lock the isolation operation hole, the breaker switch is closed only after the isolation switch is closed, the power transmission process is completed, and the on-load disconnection switch is prevented; when the switch cabinet is powered on and powered off, the circuit breaker is prevented from being opened and closed by mistake; when the grounding switch is switched on, the isolating switch cannot be simultaneously switched on, and the grounding switch with the ground wire is prevented from being switched on. The five-prevention interlocking device has the advantages that five-prevention interlocking is realized, the space of the ring main unit can be reduced, the cost is reduced, and the high-current performance of the ring main unit is more stable.
Description
Technical Field
The utility model belongs to the technical field of new energy high-voltage switches, and particularly relates to a high-reliability 35kv new energy ring main unit.
Background
In recent years, new energy in China is developed at a high speed, especially in the wind power field, the demand for the new energy ring main unit is continuously increased, and compared with the common ring main unit, the new energy ring main unit has higher electrical performance and more reliable operation requirement.
The utility model provides the high-reliability ring main unit, which can reduce equipment accident rate and maintenance cost, and compared with C-GIS (gas insulated switchgear), the high-reliability 35kv new energy ring main unit has higher cost performance, smaller volume and higher competitiveness.
Disclosure of utility model
The embodiment of the disclosure aims to provide a high-reliability 35kv new energy ring main unit, which can reduce the use space, reduce the cost and increase the core stability of an internal switch.
In order to achieve the above technical effects, a first aspect of the present utility model provides a new energy ring main unit, including: the circuit breaker comprises a three-station mechanism, a direct-acting three-station switch, a circuit breaker mechanism and a circuit breaker switch, wherein an interlocking mechanism is arranged between the three-station mechanism and the circuit breaker mechanism;
The interlocking mechanism includes: cam, first sliding plate, separating brake locking plate, separating brake knob, closing locking plate, breaker closing double cam, second sliding plate, locking plate, roller and poking rod;
When the cable room door is lifted upwards to be opened, the first sliding plate drives the opening locking plate to move upwards to block the opening knob (namely, when a person enters the cable room, the error breaking breaker is prevented); when the grounding switch of the three-station mechanism is grounded and then the breaker mechanism is switched on, the double cams of the breaker mechanism are rotated clockwise, and the second sliding plate moves upwards to allow the cable chamber door to be opened (prevent entering an electrified interval); when the disconnecting switch is switched on firstly, the locking plate moves upwards to contact with the roller, and then the left and right sliding of the poking rod is limited, so that the disconnecting switch operating hole and the grounding switch operating hole are in a locking state (so as to prevent the disconnecting switch from being separated and switched on under load); when the three-position switch operates the isolating switch to switch on, the poking rod moves leftwards to push the roller to rotate downwards, so that the switch-on locking plate moves downwards to block the switch-on knob, and thus the circuit breaker cannot be operated to switch on until the isolating switch is switched on, and the circuit breaker switch can switch on (namely, the circuit breaker is prevented from being switched on by mistake).
Preferably, after the three-position switch operation isolating switch is closed, the poking rod is reset, the idler wheel is horizontal, the closing locking plate moves upwards, and the breaker switch allows closing operation.
Preferably, when the three-station mechanism grounding switch is switched on, the isolating switch cannot be simultaneously switched off, and the grounding switch with the ground wire is prevented from being switched on.
Preferably, the interlocking mechanism further comprises a locking electromagnet, an electromagnet round bar and a mutual exclusion plate, when the circuit breaker is switched on, the electromagnet round bar of the locking electromagnet stretches out to block the mutual exclusion plate from sliding rightwards, and the electrified earthing switch is further prevented from being electrified.
Preferably, the interlock mechanism includes a slow release mechanism including a cam, a first slide plate, a trip latch plate, and a trip knob, and the circuit breaker mechanism is a clamp plate circuit breaker mechanism.
Preferably, the direct-acting three-position switch includes: the device comprises a screw rod, an intermediate static conductor, a static conductor spring contact finger, a moving contact, an isolation static contact spring contact finger, an isolation static contact, a grounding static contact and a grounding contact spring contact finger.
Preferably, the moving contact rotates clockwise through a screw rod, the moving contact contacts and separates from the spring contact finger of the isolation static contact to complete closing and opening of the isolating switch, the screw rod rotates anticlockwise to complete opening of the isolating switch, the screw rod continues to move anticlockwise, the moving contact contacts and separates from the spring contact finger on the grounding static contact to complete closing and opening of the grounding switch.
Preferably, the three-position switch adopts a left-middle-right layout, namely an A phase, a B phase and a C phase of the three-position switch, the breaker switch adopts a front-middle-back layout, namely an A phase, a B phase and a C phase of the breaker switch, and the A phase, the B phase and the C phase of the breaker switch are connected through a middle connection copper bar mechanism.
Preferably, the structure of the breaker switch comprises two side plates, wherein a vacuum bulb, an over-travel spring and a contact are arranged between the two side plates, the pressure of the contact is adjusted by adjusting the size of the over-travel spring, and the requirements of dynamic heating and switching-off of different current levels are met.
Preferably, the box backboard of the new energy ring main unit adopts a gas box rear sleeve structure, the gas box rear sleeve, the cable and the cable fixing frame are all arranged on the box backboard, the cable extends from the gas box rear sleeve to the top of the box backboard of the ring main unit, and the cable is fixed through the cable fixing frame arranged at the top of the box backboard.
According to the new energy ring main unit provided by the utility model, through the five-prevention interlocking mechanism arranged between the three-station mechanism and the breaker mechanism, the interlocking control and feedback modes formed by the grounding switch, the isolating switch and the breaker switch in a specific safety operation guarantee process are provided, and the possible misoperation control and prevention of the associated switch can be realized through the transmission control structure of the mechanism under the switch states respectively corresponding to the grounding switch, the isolating switch and the breaker switch, and the five-prevention is related to the following five prevention: 1. the live interval is prevented from entering, the live load is prevented from being separated from or combined with the isolating switch, the live load is prevented from being separated from or combined with the grounding switch, the circuit breaker is prevented from being separated from or combined with the grounding switch by mistake, and the ground wire is prevented from being separated from or combined with the isolating switch.
In addition, the technical scheme of the utility model has the following beneficial technical effects:
By adopting the three-station switch and the layout structure of the left, middle, right, front, middle and back of the breaker switch, compared with the traditional solid-sealed pole breaker switch, the occupied space of the switch is smaller, the width of a switch cabinet is reduced, the cost is reduced, and the product competitiveness is enhanced; further, the direct-acting structure adopted by the three-station switch can effectively meet the requirements of high-current dynamic heating and on-off, and is more reliable and stable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required for the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is an overall right side view of a new energy ring main unit provided according to an embodiment of the present application;
Fig. 2 is a front view and an isometric view of a five-prevention interlocking mechanism of a new energy ring main unit according to an embodiment of the present application;
fig. 3 is a right side view and an isometric view of a five-prevention interlocking mechanism of a new energy ring main unit according to an embodiment of the present application;
Fig. 4 is a right side view of a direct-acting three-position switch of a new energy ring main unit according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a structure of a rear outlet sleeve of an air box of a back plate of a new energy ring main unit box body according to an embodiment of the application.
Wherein, 101: a three-station mechanism; 102: a direct-acting three-position switch; 103: a circuit breaker switch; 104: a circuit breaker mechanism; 105: an air box; 106: an outer wrapping plate; 201: a cam; 202: a first sliding plate; 203: a brake-separating locking plate; 204: a brake release knob; 205: a second sliding plate; 206: a closing knob; 207: a double cam; 208: a closing locking plate; 209: a locking plate; 210: a roller; 211: isolating the switch operating hole; 212: a ground switch operation hole; 213: locking the electromagnet; 214: a poking rod; 215: an electromagnet round bar; 216: a mutex plate; 301: a breaker switch A phase; 302: a breaker switch B phase; 303: a breaker switch C phase; 304: three-station switch A phase; 305: a three-station switch B phase; 306: three-station switch C phase; 307: the middle is connected with a copper bar mechanism; 401: a screw rod; 402: an intermediate static conductor; 403: static conductor spring contact fingers; 404: a moving contact; 405: isolating the spring contact finger of the static contact; 406: isolating the static contact; 407: a grounding static contact; 408: a ground contact spring finger; 501: the sleeve is discharged from the air box; 502: a cable; 503: and a cable fixing frame.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
Fig. 1 is an overall right view of a new energy ring main unit provided in an embodiment of the present disclosure, where as shown in the drawing, the new energy ring main unit is a high-reliability 35kv new energy ring main unit, and the drawing includes: three-position mechanism 101, direct-acting three-position switch 102, breaker switch 103, breaker mechanism 104, gas tank 105, and outer wrapping plate 106.
Fig. 2 is a front view and an isometric view of a five-prevention interlocking mechanism of a new energy ring main unit according to an embodiment of the present application, as shown in the figure,
An interlocking mechanism is arranged between the three-station mechanism and the breaker mechanism;
The interlocking mechanism includes: cam 201, first sliding plate 202, opening locking plate 203, opening knob 204, second sliding plate 205, closing knob 206, double cam 207, closing locking plate 208, locking plate 209, roller 210, disconnecting switch operating hole 211, grounding switch operating hole 212, locking electromagnet 213, pulling rod 214, electromagnet round rod 215, and mutex plate 216;
When the cabinet body is in maintenance ground connection, when the cable chamber door lifts upwards and opens, when the first sliding plate 202 upwards moves, the opening locking plate 203 is driven to upwards move to block the opening knob 204, namely when people enter the cable chamber: preventing the circuit breaker from being disconnected by mistake; when the circuit breaker mechanism 104 is switched on after the grounding switch of the three-station mechanism 101 is grounded, the double cams 207 for switching on the circuit breaker mechanism 104 rotate clockwise, the second sliding plate 205 moves upwards, and the cable chamber door can be opened to prevent the cable chamber door from entering an electrified interval; when the circuit breaker mechanism 104 is switched on, after the locking plate 209 moves upwards to contact with the roller 210, the left and right sliding of the poking rod 214 of the three-station mechanism 101 is limited, so that the disconnecting switch operation hole 211 and the grounding switch operation hole 212 are in a locking state which cannot be operated, the disconnecting switch cannot be switched on, only the disconnecting switch is switched on first, the circuit breaker switch can be operated to be switched on, the circuit breaker switch is firstly separated in the power transmission process and the power outage process, and the disconnecting switch is separated and switched off again, and the circuit breaker is completely separated and switched on all the time with load, thereby preventing the disconnecting switch from being switched on and off with load; when the three-station mechanism 101 operates the isolating switch to switch on, the poking rod 214 moves leftwards to push the roller 210 to rotate downwards to push the breaker switch-on locking plate 208 to move downwards to block the switch-on knob 206, so that the breaker cannot be operated to switch on, until the isolating switch is switched on, after the poking rod 214 resets, the roller 210 moves upwards after the roller 210 is horizontal, the switch-on locking plate 208 moves upwards, and the breaker switch can switch on, namely, the breaker can be prevented from being switched on by mistake.
When the three-station mechanism 101 grounding switch is switched on, the isolating switch cannot be simultaneously switched off, and the grounding switch with the ground wire is prevented from switching on the isolating switch.
When the three-station mechanism grounding switch is switched on, as shown in the figure, the cam 201 rotates clockwise, the first sliding plate 202 can move upwards, the double cam 207 rotates clockwise after the circuit breaker is switched on, and the second sliding plate 205 can move upwards, so that the grounding of the switch cabinet, namely, an overhaul state, is realized, a cable chamber door can be opened, a person can safely enter the cable chamber, and the situation that the person is prevented from entering an electrified interval in the five-prevention interlocking is followed.
When the circuit breaker mechanism 104 is switched on, after the locking plate 209 moves upwards to contact with the roller 210, the left and right sliding of the poking rod 214 of the three-station mechanism 101 is limited, so that the disconnecting switch operation hole 211 and the grounding switch operation hole 212 are in a locking state which cannot be operated, the disconnecting switch cannot be switched on, only the disconnecting switch is switched on first, the circuit breaker switch can be operated to switch on, the power transmission process is completed, the circuit breaker switch is separated first in the power outage process, the disconnecting switch is separated again, and the on-off of the load is completed all the time, so that the on-load disconnecting switch is prevented.
When the cable room door is lifted upwards to be opened, the first sliding plate 202 moves upwards, so as to drive the opening locking plate 203 to move upwards to block the opening knob 204, namely, when a person enters the cable room: when the disconnecting switch is operated to be disconnected by mistake, the pulling rod 214 moves leftwards to push the roller 210 to rotate downwards to push the circuit breaker locking plate 209 to push the closing locking plate 208 to block the closing knob 206, and when the disconnecting switch is operated to be disconnected, the circuit breaker cannot be operated to be closed, namely the circuit breaker cannot be disconnected by mistake.
Because the switch is a three-position switch, the movable contact 404 is shared, and when the grounding switch is switched on, the isolating switch cannot be simultaneously switched off, so that the isolating switch with the ground wire (grounding switch) is prevented from being switched on.
Specifically, by setting the objective of the circuit breaker mechanism 104 against false disconnection during the closing operation of the grounding switch, the cam 201 and the linkage movement mechanism of the first sliding plate 202 are adopted, the movement result of the opening knob 204 is blocked by the opening locking plate 203, and in addition, when the closing of the three-station switch operation is not completed, the circuit breaker cannot be operated to close, i.e. the circuit breaker is prevented from being turned on by false disconnection, thereby achieving the objective of 1, preventing the circuit breaker mechanism from being turned on by false disconnection, and similarly, the following four objective of preventing can be further achieved from the whole mechanism by adopting the linkage design structure of the related mechanism components described above: 2. the live interval is prevented from entering, the live load is prevented from being separated from or combined with the isolating switch, the live ground switch is prevented from being separated from or combined with the isolating switch, and in addition, when the ground switch of the three-station mechanism is switched on, the isolating switch cannot be simultaneously separated from or combined with the isolating switch, so that the ground switch with the ground wire can be prevented from being separated from or combined with the isolating switch 5.
Further, when the circuit breaker mechanism 104 is closed, the electromagnet rod 215 of the locking electromagnet 213 protrudes to block the left and right sliding of the mutex plate 216, thereby further preventing the electrification of the grounding switch.
Preferably, the interlock mechanism comprises a slow release mechanism comprising: cam 201, first slide plate 202, second brake release locking plate 203, and brake release knob 204, and the circuit breaker mechanism is a clamp plate circuit breaker mechanism.
Fig. 3 is a right view and an isometric view of a five-prevention interlocking mechanism of a new energy ring main unit, in which, in a right view direction of the new energy ring main unit, the three-position switch 102 adopts a left-middle-right layout, which is a phase 304, a phase B305 and a phase C306 of the three-position switch, the breaker switch 103 adopts a front-middle-back layout, which is a phase 301, a phase B302 and a phase C303 of the breaker switch 103, and the a phase, the B phase and the phase C of the breaker switch 103 are connected by a middle connection copper bar mechanism 307.
The three-station switch 102 adopts a left-middle-right layout, the breaker switch 103 adopts a front-middle-back layout, the use space is reduced, the cost is reduced, and the core stability of the internal switch is increased.
The circuit breaker switch 103 is connected with the phase A, the phase B and the phase C through the intermediate connection copper bar mechanism 307, compared with a traditional solid-sealed pole circuit breaker switch, the occupied space of the switch is smaller, the width of the switch cabinet is reduced by 100mm compared with the width of the traditional cabinet body, the cost is reduced, and the product competitiveness is enhanced.
Fig. 4 is a right side view of a direct-acting three-position switch of a new energy ring main unit according to an embodiment of the present application, where the direct-acting three-position switch 102 includes: lead screw 401, middle static conductor 402, static conductor spring contact finger 403, moving contact 404, isolation static contact spring contact finger 405, isolation static contact 406, grounding static contact 407, grounding contact spring contact finger 408.
The moving contact 404 rotates clockwise through the screw 401, the moving contact 404 contacts with and separates from the spring contact finger 405 of the isolation static contact 406, closing and opening of the isolation switch are completed, the screw 401 rotates anticlockwise, opening of the isolation switch is completed, the screw 401 continues to move anticlockwise, the moving contact 404 contacts with and separates from the spring contact finger 408 on the grounding static contact 407, and closing and opening of the grounding switch are completed.
The three-station switch adopts a direct-acting structure, can effectively meet the requirements of high-current dynamic heating and switching on and off, and is more reliable and stable.
Preferably, the structure of the breaker switch comprises two side plates, wherein a vacuum bulb, an over-travel spring and a contact are arranged between the two side plates, the pressure of the contact is adjusted by adjusting the size of the over-travel spring, and the requirements of heat and break of different current grades are met.
Fig. 5 is a schematic diagram of a structure of a rear outlet sleeve of a gas tank of a box back plate of a new energy ring main unit according to an embodiment of the present application, where the box back plate of the new energy ring main unit adopts a structure of a rear outlet sleeve of a gas tank, and the rear outlet sleeve 501 of the gas tank, a cable 502, and a cable fixing frame 503 are all installed on the box back plate, and the cable extends from the rear outlet sleeve of the gas tank to the top of the box back plate of the ring main unit, and is fixed by the cable fixing frame installed on the top of the box back plate.
Through the design of the sleeve pipe behind the gas tank, the cable 502 is moved from the top to the bottom without removing a cable trench, so that the cost is greatly reduced.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A new forms of energy looped netowrk cabinet, its characterized in that:
comprising the following steps: the circuit breaker comprises a three-station mechanism, a direct-acting three-station switch, a circuit breaker mechanism and a circuit breaker switch, wherein an interlocking mechanism is arranged between the three-station mechanism and the circuit breaker mechanism;
The interlocking mechanism includes: cam, first sliding plate, separating brake locking plate, separating brake knob, closing locking plate, breaker closing double cam, second sliding plate, locking plate, roller and poking rod;
When the cable chamber door is lifted upwards to be opened, the first sliding plate drives the opening locking plate to move upwards to block the opening knob; when the circuit breaker mechanism is switched on after the grounding switch of the three-station mechanism is grounded, the double cams for switching on the circuit breaker mechanism rotate clockwise, and the second sliding plate moves upwards to allow the cable chamber door to be opened;
When the disconnecting switch is switched on firstly, the locking plate moves upwards to contact with the roller when the circuit breaker mechanism is switched on, and then the pulling rod is limited to slide left and right, so that the disconnecting switch operation hole and the grounding switch operation hole are in a locking state which cannot be operated; when the three-station switch operates the isolating switch to close, the poking rod moves leftwards to push the roller to rotate downwards, so that the closing locking plate moves downwards to block the closing knob, and the breaker cannot be operated to close until the isolating switch is closed, and the breaker is allowed to close.
2. The new energy ring main unit according to claim 1, wherein: after the three-position switch operation isolating switch is switched on, the poking rod is reset, the idler wheel is horizontal, the switching-on locking plate moves upwards, and the breaker switch allows switching-on operation.
3. The new energy ring main unit according to claim 2, wherein: when the three-station mechanism grounding switch is switched on, the isolating switch cannot be simultaneously switched off, and the grounding switch with the ground wire is prevented from switching on the isolating switch.
4. A new energy ring main unit according to claim 3, wherein: the interlocking mechanism further comprises a locking electromagnet, an electromagnet round bar and a mutual exclusion plate, when the circuit breaker is switched on, the electromagnet round bar of the locking electromagnet stretches out to block the mutual exclusion plate from sliding rightwards, and the electrified earthing switch is further prevented.
5. The new energy ring main unit according to claim 4, wherein: the interlocking mechanism comprises a slow type isolation mechanism, the slow type isolation mechanism comprises the cam, the first sliding plate, the opening locking plate and the opening knob, and the breaker mechanism is a clamping plate type breaker mechanism.
6. A new energy ring main unit according to any one of claims 1-5, wherein: the direct-acting three-position switch comprises: the device comprises a screw rod, an intermediate static conductor, a static conductor spring contact finger, a moving contact, an isolation static contact spring contact finger, an isolation static contact, a grounding static contact and a grounding contact spring contact finger.
7. The new energy ring main unit according to claim 6, wherein: the moving contact is in contact with and separated from the spring contact finger of the isolation static contact through the screw rod, closing and opening of the isolating switch are completed, the screw rod is rotated anticlockwise, opening of the isolating switch is completed, the screw rod continues to move anticlockwise, the moving contact is in contact with and separated from the spring contact finger on the grounding static contact, and closing and opening of the grounding switch are completed.
8. The new energy ring main unit according to claim 7, wherein: the three-station switch adopts left, middle and right layout, namely an A phase, a B phase and a C phase of the three-station switch respectively, the breaker switch adopts front, middle and rear layout, namely an A phase, a B phase and a C phase of the breaker switch respectively, and the A phase, the B phase and the C phase of the breaker switch are connected through a middle connection copper bar mechanism.
9. The new energy ring main unit according to claim 8, wherein: the structure of the breaker switch comprises two side plates, wherein a vacuum bulb, an over-travel spring and a contact are arranged between the two side plates, the pressure of the contact is adjusted by adjusting the size of the over-travel spring, and the dynamic heating and switching-off requirements of different current levels are met.
10. The new energy ring main unit according to claim 9, wherein: the box backplate of new forms of energy looped netowrk cabinet adopts the gas tank back to go out the sleeve pipe structure, go out sleeve pipe, cable mount behind the gas tank all install at the box backplate, the cable follow go out the sleeve pipe behind the gas tank to the box backplate top of looped netowrk cabinet is extended, fixes through the cable mount of installing at box backplate top the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420045047.9U CN221633251U (en) | 2024-01-08 | 2024-01-08 | New energy ring main unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420045047.9U CN221633251U (en) | 2024-01-08 | 2024-01-08 | New energy ring main unit |
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| CN221633251U true CN221633251U (en) | 2024-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202420045047.9U Active CN221633251U (en) | 2024-01-08 | 2024-01-08 | New energy ring main unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119965028A (en) * | 2025-04-09 | 2025-05-09 | 湖南平高开关有限公司 | An interlocking device with emergency unlocking function and an environmental protection ring network cabinet |
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2024
- 2024-01-08 CN CN202420045047.9U patent/CN221633251U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119965028A (en) * | 2025-04-09 | 2025-05-09 | 湖南平高开关有限公司 | An interlocking device with emergency unlocking function and an environmental protection ring network cabinet |
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