CN220753263U - Switching-on/off control loop of high-voltage switch - Google Patents
Switching-on/off control loop of high-voltage switch Download PDFInfo
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- CN220753263U CN220753263U CN202322512320.2U CN202322512320U CN220753263U CN 220753263 U CN220753263 U CN 220753263U CN 202322512320 U CN202322512320 U CN 202322512320U CN 220753263 U CN220753263 U CN 220753263U
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- 230000004044 response Effects 0.000 claims description 12
- 102220198512 rs141447598 Human genes 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 3
- 229910018503 SF6 Inorganic materials 0.000 description 9
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a high-voltage switch opening and closing control loop which comprises a remote control on-site selection switch S04, a closing switch S05, an opening and closing switch S06, a breaker closing coil Y01, a breaker opening and closing coil Y02, a disconnecting switch closing contactor K50L and the like; when the switch knife switch is operated on site, the handle of the remote control on-site selection switch S04 is arranged at the position of the knife switch to be controlled, and then the switch-on switch S05 or the switch-off switch S06 is twisted to realize on-site control of the high-voltage switch, so that all switches of the high-voltage switch at intervals can be controlled to be switched on or off by using three transfer switches. The high-voltage switch opening and closing control loop disclosed by the utility model can greatly simplify the design loop and the material cost, is simple in structure, has the physical interlocking between the disconnecting link and the switch, ensures the safe operation requirement of the high-voltage switch, is easy to realize, and is suitable for popularization and application.
Description
Technical Field
The utility model belongs to the technical field of high-voltage switches, and particularly relates to a switching-on/off control loop of a high-voltage switch.
Background
At present, the technology of a high-voltage switch opening and closing control loop is widely applied to the technical field of power transmission, the sulfur hexafluoride full-closed combined electrical appliance is compact in structure, small in size and good in arc extinguishing effect during switching operation, but at present, all the current domestic manufacturers commonly adopt the technology that each switch opening and closing is independently controlled, and the remote control and close control switch is independently arranged, and the control loop is capable of simultaneously operating a disconnecting link and a circuit breaker because opening and closing handles are respectively independent, so that the simultaneous operation is possible to cause fatal damage to the sulfur hexafluoride full-closed combined electrical appliance in many cases, and all the manufacturers have corresponding electrical protection, so that the electrical protection is particularly serious in case of failure or power failure, and the damage to mechanical parts in the mechanism is easy to cause motor burnout or damage. In addition, the knife switch and the breaker are operated simultaneously, and the motor in the mechanisms simultaneously operates to cause the power supply system to break down due to overload.
The control is not physically isolated from each other, so that the switch and the disconnecting link or the disconnecting link and the disconnecting link are operated simultaneously easily by manual operation, irreversible faults are caused to the disconnecting link or the circuit breaker, and potential safety hazards are brought to personnel and equipment.
Disclosure of Invention
In view of the above, the utility model aims to provide a high-voltage switch opening and closing control loop, which solves the problems that the manual operation causes simultaneous operation of a switch and a disconnecting link or the disconnecting link and the disconnecting link, causes irreversible faults for the disconnecting link or a circuit breaker and brings potential safety hazards to people and equipment.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a switching-on/off control loop of a high-voltage switch, which comprises the following components:
remote control on-site selection switch S04, switching-on switch S05, switching-off switch S06, and in-site switching-on loop of the circuit breaker, on-site switching-off loop of the circuit breaker, on-site switching-on loop of the disconnecting link and on-site switching-off loop of the disconnecting link which are connected in parallel;
in response to the control of the on-site switching of the circuit breaker, the positive electrode of a high-voltage switch control power supply is connected in series with a remote on-site selection switch S04 where an on-site switching loop of the circuit breaker is located through a five-prevention lock Q01WF, the remote on-site selection switch S04 is connected with a circuit where a switching-on coil Y01 of the circuit breaker is located through a switching-on switch S05, and the switching-on coil Y01 of the circuit breaker is connected with the negative electrode of the power supply;
in response to the control of the on-site opening of the circuit breaker, one end of a remote control on-site selection switch S04 where an on-site closing loop of the circuit breaker is located is connected with a five-prevention lock Q01WF, the other end of the remote control on-site selection switch S04 is connected with a circuit where a circuit breaker opening coil Y02 is located through an opening switch S06 connected with the remote control on-site selection switch in series, and the circuit breaker opening coil Y02 is connected with a power supply cathode;
in response to the on-site switching-on of a control disconnecting link, the positive electrode of a high-voltage switch control power supply is connected with a remote on-site selection switch S04 where an on-site switching-on loop of the disconnecting link is located in series through serial SF6 pressure low locking, the remote on-site selection switch S04 is connected with a switching-on switch S05 through a five-prevention lock Q50WF, the switching-on switch S05 is connected with a circuit where a disconnecting switch switching-on contactor K50L is located, and the disconnecting switch switching-on contactor K50L is connected with the negative electrode of the power supply;
in response to the control disconnecting link on-site disconnecting link, one end of a disconnecting switch S06 where a disconnecting link on-site disconnecting link circuit is located is connected with a five-prevention lock Q01WF, the other end of the disconnecting switch is connected with a circuit where a disconnecting switch closing contactor K50R is located, and the disconnecting switch closing contactor K50R is connected with the negative electrode of a power supply.
Further, in the circuit breaker on-site switching-on loop, the 1 contact of the five-prevention lock Q01WF is connected with the positive electrode of a high-voltage switch control power supply, the 2 contact of the five-prevention lock Q01WF is connected with the 3 contact of the remote-control on-site selection switch S04, the 4 contact of the remote-control on-site selection switch S04 is connected with the 1 contact of the switching-on switch S05, and the 2 contact of the switching-on switch S05 is connected with the circuit where the circuit breaker switching-on coil Y01 is located.
Further, in the circuit breaker on-site switching-on loop, the 7 contact of the remote control on-site selection switch S04 is connected between the 2 contact of the five-prevention lock Q01WF and the 3 contact of the remote control on-site selection switch S04, and the 8 contact of the remote control on-site selection switch S04 is connected with a line where the circuit breaker switching-off coil Y02 is located.
Further, in the knife switch on-site switching loop, the 15 contact of the remote control on-site selection switch S04 is connected with the positive electrode of the high-voltage switch control power supply through a serial SF6 pressure low lock, the 16 contact of the remote control on-site selection switch is connected with the 1 contact of the five-prevention lock Q01WF, the 2 contact of the five-prevention lock Q01WF is connected with the 3 contact of the switching-on switch S05, and the 4 contact of the switching-on switch S05 is connected with a circuit where the isolating switch switching-on contactor K50L is located.
Further, in the on-site disconnecting link of the disconnecting link, the 5 contact of the disconnecting switch S06 is connected between the 2 contact of the five-prevention lock Q01WF and the 3 contact of the remote-control on-site selection switch S05, and the 6 contact of the disconnecting switch S06 is connected with a line where the disconnecting switch closing contactor K50R is located.
Further, the remote control local selection switch S04 may be connected with a switch position indicator lamp.
Compared with the prior art, the high-voltage switch opening and closing control loop has the following beneficial effects:
the utility model relates to a high-voltage switch opening and closing control loop which comprises a remote control on-site selection switch S04, a closing switch S05, an opening and closing switch S06, a breaker closing coil Y01, a breaker opening and closing coil Y02, a disconnecting switch closing contactor K50L and the like; when the switch knife switch is operated on site, the handle of the remote control on-site selection switch S04 is arranged at the position of the knife switch to be controlled, the on-site control of the high-voltage switch is realized only by twisting the switch-on switch S05 or the switch-off switch S06, the on-site control of all the switches of the high-voltage switch at intervals can be realized only by using three transfer switches, the design loop and the material cost are greatly simplified, the structure is simple, meanwhile, the physical interlocking between the knife switch and the switch is realized, the safe operation requirement of the high-voltage switch is ensured, the realization is easy, and the method is suitable for popularization and application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a circuit diagram of an internal circuit of a transfer switch control circuit breaker used in a high-voltage switch opening and closing control circuit according to an embodiment of the present utility model;
fig. 2 is a circuit diagram of a switch control isolation grounding internal circuit used in a high-voltage switch opening and closing control circuit according to an embodiment of the present utility model.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 2, the present embodiment provides a switching control loop of a high-voltage switch, including:
remote control on-site selection switch S04, switching-on switch S05, switching-off switch S06, and in-site switching-on loop of the circuit breaker, on-site switching-off loop of the circuit breaker, on-site switching-on loop of the disconnecting link and on-site switching-off loop of the disconnecting link which are connected in parallel;
in response to the control of the on-site switching of the circuit breaker, the positive electrode of the high-voltage switch control power supply is connected with a remote on-site selection switch S04 where an on-site switching loop of the circuit breaker is located in series through a five-prevention lock Q01WF, the remote on-site selection switch S04 is connected with a circuit where a switching-on coil Y01 of the circuit breaker is located through a switching-on switch S05, and the switching-on coil Y01 of the circuit breaker is connected with the negative electrode of the power supply;
in response to the control of the on-site opening of the circuit breaker, one end of a remote-control on-site selection switch S04 where an on-site closing loop of the circuit breaker is located is connected with a five-prevention lock Q01WF, the other end of the remote-control on-site selection switch S04 is connected with a circuit where a circuit breaker opening coil Y02 is located through an opening switch S06 connected with the remote-control on-site selection switch S06 in series, and the circuit breaker opening coil Y02 is connected with a power supply negative electrode;
in response to the on-site switching on of the control disconnecting link, the positive electrode of the high-voltage switch control power supply is connected with a remote control on-site selection switch S04 where an on-site switching on loop of the disconnecting link is located through a serial SF6 pressure low-locking serial connection, the remote control on-site selection switch S04 is connected with a switching-on switch S05 through a five-prevention lock Q50WF, the switching-on switch S05 is connected with a circuit where an isolating switch switching-on contactor K50L is located, and the isolating switch switching-on contactor K50L is connected with the negative electrode of the power supply;
in response to the control of the local disconnecting link, one end of a disconnecting switch S06 where a local disconnecting link loop of the disconnecting link is connected with a five-prevention lock Q01WF, the other end of the disconnecting switch is connected with a circuit where a disconnecting switch closing contactor K50R is located, and the disconnecting switch closing contactor K50R is connected with the negative electrode of a power supply.
Specifically, the high-voltage switch opening and closing control loop described in this embodiment includes a remote control local selection switch S04, a closing switch S05, a breaking switch S06, a breaker closing coil Y01, a breaker breaking coil Y02, a disconnecting switch closing contactor K50L, and the like; when the switch knife switch is operated on site, the handle of the remote control on-site selection switch S04 is arranged at the position of the knife switch to be controlled, then the switch-on switch S05 or the switch-off switch S06 is twisted to realize on-site control of the high-voltage switch, and only three transfer switches can be used for controlling the switch on-off of all the switches of the high-voltage switch at intervals, so that the design loop and the material cost are greatly simplified, the structure is simple, and meanwhile, the physical interlocking between the knife switch and the switch is realized, the safe operation requirement of the high-voltage switch is ensured, the realization is easy, and the high-voltage switch knife switch is suitable for popularization and application.
In some embodiments, in the circuit breaker on-site switching-on loop, the 1 contact of the five-prevention lock Q01WF is connected with the positive electrode of the high-voltage switch control power supply, the 2 contact of the five-prevention lock Q01WF is connected with the 3 contact of the remote-control on-site selection switch S04, the 4 contact of the remote-control on-site selection switch S04 is connected with the 1 contact of the switching-on switch S05, and the 2 contact of the switching-on switch S05 is connected with the line where the circuit breaker switching-on coil Y01 is located;
in the circuit breaker on-site switching-on loop, a 7 contact of a remote control on-site selection switch S04 is connected between a2 contact of a five-prevention lock Q01WF and a 3 contact of the remote control on-site selection switch S04, and an 8 contact of the remote control on-site selection switch S04 is connected with a circuit where a circuit breaker switching-off coil Y02 is located.
In particular, the method comprises the steps of,
when the circuit breaker is operated, the positive pole (+) of the high-voltage switch control power supply is connected in series through the five-prevention lock Q01WF to be connected into a remote control on-site selection switch S04 to be used as the positive pole driven by the circuit breaker, various SF6 low-pressure locks are connected in series through a closing switch S05 to enter the circuit breaker mechanism, the positive pole A1 of a closing coil Y01 of the circuit breaker and the negative pole A2 of the closing coil Y01 of the circuit breaker are connected with the negative pole of the power supply after passing through auxiliary switch contacts, when the circuit breaker needs on-site control, the remote control on-site selection switch S04 is rotated to be in a Q01 position, at the moment, 3-4 contacts of the remote control on-site selection switch S04 are connected, meanwhile, the remote 1-2 contacts are disconnected to isolate remote operation, and the circuit breaker is operated in the on-site position to perform closing operation by using the closing switch S05; and similarly, the brake is separated by a brake separating switch S06.
In the operation process, the remote control on-site selection switch S04 is always at one position, and other knife switches cannot perform opening and closing operations, so that a physical isolation effect is achieved.
In some embodiments, in the local switch-on loop of the disconnecting link, the 15 contact of the remote local selection switch S04 is connected with the positive electrode of the high-voltage switch control power supply through the serial SF6 pressure low lock, the 16 contact of the remote local selection switch is connected with the 1 contact of the five-prevention lock Q01WF, the 2 contact of the five-prevention lock Q01WF is connected with the 3 contact of the switch-on switch S05, and the 4 contact of the switch-on switch S05 is connected with the circuit where the isolating switch-on contactor K50L is located;
in the disconnecting link on-site disconnecting link loop, the 5 contact of the disconnecting switch S06 is connected between the 2 contact of the five-prevention lock Q01WF and the 3 contact of the remote control on-site selection switch S05, and the 6 contact of the disconnecting switch S06 is connected with a circuit where the disconnecting switch closing contactor K50R is located.
Specifically, when the isolating switch is operated, the positive pole (+) of the high-voltage switch control power supply is connected in series with various SF6 pressure low locking and five-prevention lock Q50WF to be connected in series to a remote control on-site selection switch S04 to be used as the positive pole driven by the isolating switch Q50, is connected in series to the inside of an isolating grounding three-station mechanism after passing through a closing switch S05, is connected to the positive pole A1 of an isolating switch closing contactor K50L and the negative pole A2 of the isolating switch closing contactor K50L after passing through an auxiliary switch contact, is connected with the negative pole of the power supply, and when the isolating grounding three-station needs on-site isolating switch Q50 to be controlled, the remote control on-site selection switch S04 is rotated to be in the Q50 position, at the moment, the contacts of the remote control on-site selection switches S0415-16 are connected, and at the same time, the contacts of the remote 13-14 are disconnected, the isolating remote operation is performed, and the isolating switch Q50 is operated in the on-site position to be capable of performing closing operation by using the closing switch S05; and similarly, the brake is separated by a brake separating switch S06.
In the operation process, the remote control on-site selection switch S04 is always at one position, other knife switches cannot perform opening and closing operations, the physical isolation function is achieved, and the loops are mutually independent.
In some embodiments, the remote-control in-situ selection switch S04 may be connected with a switch position indicator light, so that the switch indicator light on the analog panel is turned on or blinks to perform a corresponding display reminder.
The high-voltage switch opening and closing control loop is suitable for various sulfur hexafluoride high-voltage switches, is used for preventing error-integration of switching equipment, and protects safety of personnel and power equipment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a high tension switchgear divide-shut brake control circuit which characterized in that includes:
remote control on-site selection switch S04, switching-on switch S05, switching-off switch S06, and in-site switching-on loop of the circuit breaker, on-site switching-off loop of the circuit breaker, on-site switching-on loop of the disconnecting link and on-site switching-off loop of the disconnecting link which are connected in parallel;
in response to the control of the on-site switching of the circuit breaker, the positive electrode of a high-voltage switch control power supply is connected in series with a remote on-site selection switch S04 where an on-site switching loop of the circuit breaker is located through a five-prevention lock Q01WF, the remote on-site selection switch S04 is connected with a circuit where a switching-on coil Y01 of the circuit breaker is located through a switching-on switch S05, and the switching-on coil Y01 of the circuit breaker is connected with the negative electrode of the power supply;
in response to the control of the on-site opening of the circuit breaker, one end of a remote control on-site selection switch S04 where an on-site closing loop of the circuit breaker is located is connected with a five-prevention lock Q01WF, the other end of the remote control on-site selection switch S04 is connected with a circuit where a circuit breaker opening coil Y02 is located through an opening switch S06 connected with the remote control on-site selection switch in series, and the circuit breaker opening coil Y02 is connected with a power supply cathode;
in response to the on-site switching-on of a control disconnecting link, the positive electrode of a high-voltage switch control power supply is connected with a remote on-site selection switch S04 where an on-site switching-on loop of the disconnecting link is located in series through serial SF6 pressure low locking, the remote on-site selection switch S04 is connected with a switching-on switch S05 through a five-prevention lock Q50WF, the switching-on switch S05 is connected with a circuit where a disconnecting switch switching-on contactor K50L is located, and the disconnecting switch switching-on contactor K50L is connected with the negative electrode of the power supply;
in response to the control disconnecting link on-site disconnecting link, one end of a disconnecting switch S06 where a disconnecting link on-site disconnecting link circuit is located is connected with a five-prevention lock Q01WF, the other end of the disconnecting switch is connected with a circuit where a disconnecting switch closing contactor K50R is located, and the disconnecting switch closing contactor K50R is connected with the negative electrode of a power supply.
2. The high voltage switch opening and closing control loop according to claim 1, wherein:
in the circuit breaker on-site switching-on loop, a1 contact of the five-prevention lock Q01WF is connected with a positive electrode of a high-voltage switch control power supply, a2 contact of the five-prevention lock Q01WF is connected with a 3 contact of the remote on-site selection switch S04, a 4 contact of the remote on-site selection switch S04 is connected with a1 contact of the switching-on switch S05, and a2 contact of the switching-on switch S05 is connected with a circuit where a switching-on coil Y01 of the circuit breaker is located.
3. The high voltage switch opening and closing control loop according to claim 1, wherein:
in the circuit breaker on-site switching-on loop, the 7 contact of the remote control on-site selection switch S04 is connected between the 2 contact of the five-prevention lock Q01WF and the 3 contact of the remote control on-site selection switch S04, and the 8 contact of the remote control on-site selection switch S04 is connected with a circuit where the circuit breaker switching-off coil Y02 is located.
4. The high voltage switch opening and closing control loop according to claim 1, wherein:
in the knife switch on-site switching-on loop, the 15 contact of the remote control on-site selection switch S04 is connected with the positive electrode of a high-voltage switch control power supply through a serial SF6 pressure low lock, the 16 contact of the remote control on-site selection switch is connected with the 1 contact of the five-prevention lock Q01WF, the 2 contact of the five-prevention lock Q01WF is connected with the 3 contact of the switching-on switch S05, and the 4 contact of the switching-on switch S05 is connected with a circuit where the isolating switch switching-on contactor K50L is located.
5. The high voltage switch opening and closing control loop according to claim 1, wherein:
in the disconnecting link on-site disconnecting link loop, the 5 contact of the disconnecting switch S06 is connected between the 2 contact of the five-prevention lock Q01WF and the 3 contact of the remote control on-site selection switch S05, and the 6 contact of the disconnecting switch S06 is connected with a circuit where the disconnecting switch closing contactor K50R is located.
6. The high voltage switch opening and closing control loop according to claim 1, wherein:
the remote control local selection switch S04 can be connected with a switch position indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512320.2U CN220753263U (en) | 2023-09-15 | 2023-09-15 | Switching-on/off control loop of high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322512320.2U CN220753263U (en) | 2023-09-15 | 2023-09-15 | Switching-on/off control loop of high-voltage switch |
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| Publication Number | Publication Date |
|---|---|
| CN220753263U true CN220753263U (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322512320.2U Active CN220753263U (en) | 2023-09-15 | 2023-09-15 | Switching-on/off control loop of high-voltage switch |
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| Country | Link |
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| CN (1) | CN220753263U (en) |
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2023
- 2023-09-15 CN CN202322512320.2U patent/CN220753263U/en active Active
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Effective date of registration: 20240614 Address after: Room 205, 2nd Floor, Building 2, Building 1 to 4, North Erpuzi Village, Huilongguan Town, Changping District, Beijing, 102208, China Patentee after: Beijing Guangyao Jiuzhou Power Equipment Co.,Ltd. Country or region after: China Address before: 102200 Beijing Changping District Huilongguan town Er Bozi Village North No.1 building 1-4 floor all 3 sets 1 floor 103 Patentee before: STATE GRID BONA (BEIJING) ELECTRIC POWER EQUIPMENT CO.,LTD. Country or region before: China |