CN114156118A - Column box type primary and secondary fusion high-voltage switch - Google Patents
Column box type primary and secondary fusion high-voltage switch Download PDFInfo
- Publication number
- CN114156118A CN114156118A CN202111527370.7A CN202111527370A CN114156118A CN 114156118 A CN114156118 A CN 114156118A CN 202111527370 A CN202111527370 A CN 202111527370A CN 114156118 A CN114156118 A CN 114156118A
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- voltage switch
- rod
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- 230000004927 fusion Effects 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 11
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 229920002379 silicone rubber Polymers 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
Abstract
The invention provides a column box type primary and secondary fusion high-voltage switch, which comprises an upper column shell, a lower box shell and an intermediate fixing plate, wherein the upper column shell, the lower box shell and the intermediate fixing plate are made of insulating materials; the column box type primary and secondary fusion high-voltage switch provided by the invention combines the advantages of the existing column type high-voltage switch and the existing box type high-voltage switch, is small in size and is easy to assemble automatically; the upper column shell 1 and the lower box shell 11 realize effective isolation of high pressure and low pressure, and all components in the upper column shell 1 are mutually insulated; meanwhile, a space is reserved in the upper column shell 1 so as to facilitate the installation of various sensors; furthermore, a power distribution switch monitoring terminal (FTU) is integrated with the high-voltage switch in a plug-in mode, so that the design of integrating the FTU and the high-voltage switch into a whole is realized.
Description
Technical Field
The invention relates to the technical field of high-voltage switches, in particular to a column box type primary and secondary fusion high-voltage switch.
Background
The high-voltage switch (or called high-voltage circuit breaker) not only can cut off or close the no-load current and load current in the high-voltage circuit, but also can cut off the overload current and short-circuit current by the action of the relay protection device when the system is in fault, and has rather perfect arc extinguishing structure and enough current breaking capacity.
Existing high-voltage switches are mainly classified into two categories: strut-type high-voltage switches and box-type high-voltage switches.
The strut type high-voltage switch, such as the ZW32 type high-voltage switch, has large volume, and the adopted incoming line terminal, outgoing line terminal or ceramic insulating sleeve and the like are large-volume accessories, so the installation is not easy, the occupied area is large, and the application range is limited; and when the electric signal that needs to gather, can only adopt the external mode of mutual-inductor, the potential safety hazard is big.
The box type high-voltage switch, such as a ZW20 type high-voltage switch, is internally filled with SF6 gas, and has a gas leakage factor; under the action of electric arc and corona, SF6 gas is decomposed to produce low-fluorine compounds which can cause damage to the insulating material, and the low-fluorine compounds are extremely toxic gases and are not environment-friendly.
Therefore, no matter the support type high-voltage switch or the box type high-voltage switch has the defects, a novel high-voltage switch is needed, the function of the high-voltage switch can be realized, and the defects of the support type high-voltage switch and the box type high-voltage switch can be overcome.
Disclosure of Invention
The invention aims to provide a column box type primary and secondary fusion high-voltage switch, which not only can realize the function of the high-voltage switch, but also can overcome the defects of a column type high-voltage switch and a box type high-voltage switch.
In order to achieve the purpose, the invention adopts the following technical scheme:
a column box type primary and secondary fusion high-voltage switch comprises an upper column shell, a lower box shell and an intermediate fixing plate, wherein the upper column shell, the lower box shell and the intermediate fixing plate are made of insulating materials;
the high-voltage path assembly comprises an incoming line assembly, an outgoing line assembly and a lead; the wire inlet assembly comprises a wire inlet rod, a high-voltage wire inlet terminal and a wire inlet conductor terminal; the middle part of the wire inlet rod fixedly penetrates through the shell wall of the upper column shell, the upper end of the wire inlet rod is fixedly and electrically connected with a high-voltage wire inlet terminal, and the upper end of the wire inlet rod is fixedly and electrically connected with a wire inlet lead terminal; the outlet assembly comprises a high-voltage outlet terminal, a vacuum arc-extinguishing chamber and an insulating pull rod, the high-voltage outlet terminal is fixedly and electrically connected with the outlet end of the vacuum arc-extinguishing chamber, a high-voltage separation and combination mechanism consisting of a moving contact and a static contact is arranged in the vacuum arc-extinguishing chamber, and the insulating pull rod is used for separating and combining the moving contact and the static contact through mechanical action; the first end of the wire is fixedly and electrically connected with the wire inlet terminal, and the second end of the wire is fixedly and electrically connected with the wire inlet end of the vacuum arc-extinguishing chamber;
the low-pressure control assembly comprises a control mechanism, a spring operating mechanism and a connecting rod; the control mechanism is used for driving the connecting rod to act through the spring operating mechanism, and the acting end of the connecting rod penetrates through the middle fixing plate and is fixedly connected with the lower end of the insulating pull rod;
the lower box shell is internally provided with a power distribution switch monitoring terminal installation cavity, and the power distribution switch monitoring terminal is arranged in the power distribution switch monitoring terminal installation cavity in an inserting mode.
The wire inlet rod is wrapped in the wire inlet rod insulating sleeve in the upper column shell, and the wire inlet rod insulating sleeve and the upper column shell are of an integrally cast structure.
The vacuum arc extinguish chamber is wrapped by the vacuum arc extinguish chamber insulating sleeve, and the vacuum arc extinguish chamber insulating sleeve and the upper column shell are of an integrally cast structure.
The wire outlet assembly further comprises a flexible connection and a support pull rod, wherein the first end of the flexible connection is fixedly and electrically connected with the wire inlet end of the vacuum arc-extinguishing chamber, and the second end of the flexible connection is connected with the second end of the wire; the upper end of the supporting pull rod is fixedly connected with the insulating sleeve of the vacuum arc extinguish chamber, and the lower end of the supporting pull rod is fixedly connected with the middle fixing plate.
The wire outlet assembly further comprises a copper nut, and the copper nut is used for fixedly and electrically connecting the high-voltage wire outlet terminal with a wire outlet end of the vacuum arc-extinguishing chamber.
The high-voltage circuit component further comprises a current transformer, the current transformer is used for collecting current signals on the wire inlet rod, and the output end of the current transformer is connected with the input end of the power distribution switch monitoring terminal.
The current transformer is wrapped by a current transformer insulating sleeve, and the current transformer insulating sleeve and the upper column shell are of an integral pouring forming structure.
The high-voltage path assembly further comprises a voltage sensor, the voltage sensor is used for collecting voltage signals on the wire inlet rod, and the output end of the voltage sensor is connected with the input end of the power distribution switch monitoring terminal.
Compared with the prior art, the invention has the beneficial effects that:
the column box type primary and secondary fusion high-voltage switch provided by the invention combines the advantages of the existing column type high-voltage switch and the existing box type high-voltage switch, is small in size and is easy to assemble automatically; the upper column shell 1 and the lower box shell 11 realize effective isolation of high pressure and low pressure, and all components in the upper column shell 1 are mutually insulated; meanwhile, a space is reserved in the upper column shell 1 so as to facilitate the installation of various sensors; furthermore, a power distribution switch monitoring terminal (FTU) is integrated with the high-voltage switch in a plug-in mode, so that the design of integrating the FTU and the high-voltage switch into a whole is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an installation schematic diagram of the power distribution switch monitoring terminal according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2: the invention relates to a column box type primary and secondary fusion high-voltage switch, which comprises an upper column shell 1, a lower box shell 11 and a middle fixing plate 9, wherein the upper column shell 1 is prepared from an insulating material, a high-voltage path assembly is arranged in the upper column shell 1, a low-voltage control assembly and a power distribution switch monitoring terminal (FTU) are arranged in the lower box shell 11, and the middle fixing plate 9 is used for fixing the upper column shell 1 and the lower box shell 11;
the high-voltage path assembly comprises an incoming line assembly, an outgoing line assembly and a lead 13; the wire inlet assembly comprises a wire inlet rod 14, a high-voltage wire inlet terminal and a wire inlet lead 13 terminal; the middle part of the wire inlet rod 14 fixedly penetrates through the shell wall of the upper column shell 1, the upper end of the wire inlet rod 14 is fixedly and electrically connected with a high-voltage wire inlet terminal, and the upper end of the wire inlet rod 14 is fixedly and electrically connected with a wire inlet lead 13 terminal; the outgoing line component comprises a high-voltage outgoing line terminal 2, a vacuum arc extinguish chamber 4 and an insulating pull rod 7, wherein the high-voltage outgoing line terminal 2 is fixedly and electrically connected with an outgoing line end of the vacuum arc extinguish chamber 4, a high-voltage switching mechanism consisting of a moving contact and a static contact is arranged in the vacuum arc extinguish chamber 4, and the insulating pull rod 7 is used for switching the moving contact and the static contact through mechanical action; the first end of the lead 13 is fixedly and electrically connected with a terminal of the wire inlet 13, and the second end of the lead 13 is fixedly and electrically connected with a wire inlet end of the vacuum arc-extinguishing chamber 4;
the low-pressure control assembly comprises a control mechanism, a spring operating mechanism 10 and a connecting rod; the control mechanism is used for driving the connecting rod to act through the spring operating mechanism 10, and the acting end of the connecting rod passes through the middle fixing plate 9 and is fixedly connected with the lower end of the insulating pull rod 7;
lower boxed shell in be provided with distribution switch monitor terminal (FTU) installation cavity, distribution switch monitor terminal (FTU) adopt the mode setting of pegging graft at distribution switch monitor terminal (FTU) installation cavity, distribution switch monitor terminal (FTU) and control monitoring platform communication connection for realize a secondary and fuse.
The column box type primary and secondary fusion high-voltage switch provided by the invention combines the advantages of the existing column type high-voltage switch and the existing box type high-voltage switch, is small in size and is easy to assemble automatically; the upper column shell 1 and the lower box shell 11 realize effective isolation of high pressure and low pressure, and all components in the upper column shell 1 are mutually insulated; meanwhile, a space is reserved in the upper column shell 1 so as to facilitate the installation of various sensors; furthermore, a power distribution switch monitoring terminal (FTU) is integrated with the high-voltage switch in a plug-in mode, so that the design of integrating the FTU and the high-voltage switch into a whole is realized.
Preferably: wire inlet rod 14 all wrap up 14 insulating cover of wire inlet rod in the inside part of upper column shell 1, 14 insulating cover of wire inlet rod and upper column shell 1 pour the shaping structure as an organic whole, the setting of 14 insulating cover of wire inlet rod has guaranteed the insulating properties between the inside each non-electric's of upper column shell 1 subassembly.
Preferably: vacuum interrupter 4 outside wrap up silicon rubber sleeve 5, silicon rubber sleeve 5 and upper column shell 1 pour the shaping structure as an organic whole, the insulating properties between the inside each non-electric subassembly of upper column shell 1 has been guaranteed to the setting of silicon rubber sleeve 5.
Preferably: the wire outlet assembly further comprises a flexible connection 6 and a support pull rod 8, wherein the first end of the flexible connection 6 is fixedly and electrically connected with the wire inlet end of the vacuum arc-extinguishing chamber 4, and the second end of the flexible connection 6 is connected with the second end of the wire 13; the upper end of the supporting pull rod 8 is fixedly connected with the silicone rubber sleeve 5, and the lower end of the supporting pull rod 8 is fixedly connected with the middle fixing plate 9; the arrangement of the flexible connection 6 can effectively enlarge the distance between the wire inlet end of the vacuum arc-extinguishing chamber 4 and the wire 13, is convenient for the effective utilization of the space in the upper column shell 1, and can also prevent the accident of breaking the wire 13 in the process of up-and-down movement of the insulating pull rod 7; furthermore, the arrangement of the supporting pull rod 8 can effectively support the silicon rubber sleeve 5.
Preferably: the outgoing line assembly further comprises a copper nut 3, the copper nut 3 is used for fixing and electrically connecting the high-voltage outgoing line terminal 2 with the outgoing line end of the vacuum arc extinguish chamber 4, the high-voltage outgoing line terminal 2 is convenient to install and replace, and the outgoing line assembly is convenient and practical.
Preferably: the high-voltage access assembly further comprises a current transformer 15, the current transformer 15 is used for collecting current signals on the wire inlet rod 14, the output end of the current transformer 15 is connected with the input end of a power distribution switch monitoring terminal (FTU), the current transformer can send the current signals on the wire inlet rod 14 to the FTU, transmit the current signals to the control monitoring platform through the FTU and control the action of the column box type high-voltage switch through the control monitoring platform; compared with the existing strut-type high-voltage switch, the incoming line terminal and the outgoing line terminal of the strut-type high-voltage switch are exposed outside, so that when the current transformer 15 is arranged, the mode of externally hanging the current transformer 15 can be adopted, potential safety hazards exist, the interference of the external environment is easy to occur, and the measurement result is unreliable.
Preferably: the current transformer 15 wrap up the insulating cover of current transformer 15 outward, the insulating cover of current transformer 15 pour the shaping structure as an organic whole with upper column shell 1, the insulating properties between each inside non-electric's of upper column shell 1 have been guaranteed in the setting of the insulating cover of current transformer 15.
Preferably: the high-voltage access assembly further comprises a voltage sensor 12, the voltage sensor 12 is used for collecting a voltage signal on the wire inlet rod 14, and an output end of the voltage sensor 12 is connected with an input end of a power distribution switch monitoring terminal (FTU), so that the voltage signal on the wire inlet rod 14 can be sent to the FTU, the voltage signal can be transmitted to a control monitoring platform through the FTU, and the column box type high-voltage switch can be controlled to act through the control monitoring platform; compared with the existing strut-type high-voltage switch, the incoming line terminal and the outgoing line terminal of the strut-type high-voltage switch are both exposed outside, so that when the voltage sensor 12 is arranged, the mode of externally hanging the voltage sensor 12 can be only adopted, potential safety hazards exist, the external environment is easy to interfere, and the measurement result is unreliable.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a high voltage switch is fused to first secondary of post case formula which characterized in that: the high-voltage power distribution box comprises an upper column shell, a lower box shell and an intermediate fixing plate, wherein the upper column shell is made of insulating materials, a high-voltage passage component is arranged in the upper column shell, a low-voltage control component and a power distribution switch monitoring terminal are arranged in the lower box shell, and the intermediate fixing plate is used for fixing the upper column shell and the lower box shell;
the high-voltage path assembly comprises an incoming line assembly, an outgoing line assembly and a lead; the wire inlet assembly comprises a wire inlet rod, a high-voltage wire inlet terminal and a wire inlet conductor terminal; the middle part of the wire inlet rod fixedly penetrates through the shell wall of the upper column shell, the upper end of the wire inlet rod is fixedly and electrically connected with a high-voltage wire inlet terminal, and the upper end of the wire inlet rod is fixedly and electrically connected with a wire inlet lead terminal; the outlet assembly comprises a high-voltage outlet terminal, a vacuum arc-extinguishing chamber and an insulating pull rod, the high-voltage outlet terminal is fixedly and electrically connected with the outlet end of the vacuum arc-extinguishing chamber, a high-voltage separation and combination mechanism consisting of a moving contact and a static contact is arranged in the vacuum arc-extinguishing chamber, and the insulating pull rod is used for separating and combining the moving contact and the static contact through mechanical action; the first end of the wire is fixedly and electrically connected with the wire inlet terminal, and the second end of the wire is fixedly and electrically connected with the wire inlet end of the vacuum arc-extinguishing chamber;
the low-pressure control assembly comprises a control mechanism, a spring operating mechanism and a connecting rod; the control mechanism is used for driving the connecting rod to act through the spring operating mechanism, and the acting end of the connecting rod penetrates through the middle fixing plate and is fixedly connected with the lower end of the insulating pull rod;
the lower box shell is internally provided with a power distribution switch monitoring terminal installation cavity, and the power distribution switch monitoring terminal is arranged in the power distribution switch monitoring terminal installation cavity in an inserting mode.
2. The column box type primary and secondary fusion high-voltage switch according to claim 1, characterized in that: the wire inlet rod is wrapped in the wire inlet rod insulating sleeve in the upper column shell, and the wire inlet rod insulating sleeve and the upper column shell are of an integrally cast structure.
3. The column box type primary and secondary fusion high-voltage switch according to claim 2, characterized in that: the vacuum arc extinguish chamber is wrapped by the vacuum arc extinguish chamber insulating sleeve, and the vacuum arc extinguish chamber insulating sleeve and the upper column shell are of an integrally cast structure.
4. The column box type primary and secondary fusion high-voltage switch according to claim 3, characterized in that: the wire outlet assembly further comprises a flexible connection and a support pull rod, wherein the first end of the flexible connection is fixedly and electrically connected with the wire inlet end of the vacuum arc-extinguishing chamber, and the second end of the flexible connection is connected with the second end of the wire; the upper end of the supporting pull rod is fixedly connected with the insulating sleeve of the vacuum arc extinguish chamber, and the lower end of the supporting pull rod is fixedly connected with the middle fixing plate.
5. The column box type primary and secondary fusion high-voltage switch according to claim 4, characterized in that: the wire outlet assembly further comprises a copper nut, and the copper nut is used for fixedly and electrically connecting the high-voltage wire outlet terminal with a wire outlet end of the vacuum arc-extinguishing chamber.
6. The column box type primary and secondary fusion high-voltage switch according to claim 5, characterized in that: the high-voltage circuit component further comprises a current transformer, the current transformer is used for collecting current signals on the wire inlet rod, and the output end of the current transformer is connected with the input end of the power distribution switch monitoring terminal.
7. The column box type primary and secondary fusion high-voltage switch according to claim 6, characterized in that: the current transformer is wrapped by a current transformer insulating sleeve, and the current transformer insulating sleeve and the upper column shell are of an integral pouring forming structure.
8. The column box type primary and secondary fusion high-voltage switch according to claim 7, characterized in that: the high-voltage path assembly further comprises a voltage sensor, the voltage sensor is used for collecting voltage signals on the wire inlet rod, and the output end of the voltage sensor is connected with the input end of the power distribution switch monitoring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527370.7A CN114156118A (en) | 2021-12-15 | 2021-12-15 | Column box type primary and secondary fusion high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527370.7A CN114156118A (en) | 2021-12-15 | 2021-12-15 | Column box type primary and secondary fusion high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114156118A true CN114156118A (en) | 2022-03-08 |
Family
ID=80451114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111527370.7A Pending CN114156118A (en) | 2021-12-15 | 2021-12-15 | Column box type primary and secondary fusion high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114156118A (en) |
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2021
- 2021-12-15 CN CN202111527370.7A patent/CN114156118A/en active Pending
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Effective date of registration: 20231123 Address after: No.85, Songshan South Road, Erqi District, Zhengzhou City, Henan Province Applicant after: STATE GRID HENAN ELECTRIC POWER CORPORATION ELECTRIC POWER SCIENCE Research Institute Applicant after: Henan Jiuyu Tenglong Information Engineering Co.,Ltd. Applicant after: Xuchang yushengchang Electric Co.,Ltd. Address before: 450000 No. 1 Building, No. 5 Ankang Road, Erqi District, Zhengzhou City, Henan Province Applicant before: Henan Jiuyu Tenglong Information Engineering Co.,Ltd. Applicant before: Xuchang yushengchang Electric Co.,Ltd. |