CN111162461A - 10kV environment-friendly gas insulation ring main unit - Google Patents
10kV environment-friendly gas insulation ring main unit Download PDFInfo
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- CN111162461A CN111162461A CN202010064975.6A CN202010064975A CN111162461A CN 111162461 A CN111162461 A CN 111162461A CN 202010064975 A CN202010064975 A CN 202010064975A CN 111162461 A CN111162461 A CN 111162461A
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- switch
- isolation
- grounding
- hole
- interlocking
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- 238000009413 insulation Methods 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 116
- 230000005540 biological transmission Effects 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 6
- 230000009194 climbing Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/075—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a 10kV environment-friendly gas insulation ring main unit, which comprises a cabinet body, a circuit breaker switch, an isolating switch, a circuit breaker mechanism and an isolating mechanism, wherein the cabinet body comprises an instrument room, a switch room, a mechanism room, a pressure relief room and a cable room, the instrument room is positioned at the top of the cabinet body, the switch room and the mechanism room are positioned in the middle of the cabinet body, the pressure relief room and the cable room are positioned at the lower part of the cabinet body, the mechanism room is positioned in front of the switch room, the cable room is positioned in front of the pressure relief room, and the circuit breaker mechanism is arranged in the mechanism room and used for triggering the opening and closing of; the isolation mechanism is arranged in the mechanism chamber and located below the circuit breaker mechanism and used for triggering the on-off of the isolation switch, the requirement of five-prevention interlocking can be met, and the isolation mechanism is simple and reasonable in structural design, small in size and good in stability.
Description
Technical Field
The invention relates to the field of high-voltage cabinet structures, in particular to a 10kV environment-friendly gas insulation ring main unit.
Background
At present, few manufacturers of the existing domestic environment-friendly insulation cabinets are used, the interlocking devices are mostly in soft interlocking, the structure is complex, the reliability is low, the cost is high, and the occupied space is large.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a 10kV environment-friendly gas insulation ring main unit which can meet the requirement of five-prevention interlocking, has high reliability, simple and reasonable structural design, small volume and space saving.
According to a first aspect embodiment of the present invention, a 10kV environment-friendly gas-insulated ring main unit includes:
the cabinet body comprises an instrument room, a switch room, a mechanism room, a pressure relief room and a cable room, wherein the instrument room is positioned at the top of the cabinet body, the switch room and the mechanism room are positioned in the middle of the cabinet body, the pressure relief room and the cable room are positioned at the lower part of the cabinet body, the mechanism room is positioned in front of the switch room, the cable room is positioned in front of the pressure relief room, a breaker switch and an isolating switch are arranged in the switch room, a cable connector lug extends out of the cable room from the lower part of the isolating switch, and an explosion-proof valve is arranged between the switch room and the pressure relief room;
the circuit breaker mechanism is arranged in the mechanism chamber, is used for triggering the opening and closing of the circuit breaker switch, and comprises a first interlocking rod which can displace downwards when the circuit breaker switch acts and a circuit breaker mechanism extending interlocking plate which is used for locking the circuit breaker mechanism, and the circuit breaker mechanism extending interlocking plate is arranged at the bottom of the circuit breaker mechanism;
the isolation mechanism is arranged in the mechanism chamber and positioned below the circuit breaker mechanism, is used for triggering the opening and closing of the isolation switch, and comprises a front supporting plate and a rear supporting plate which are parallel to each other, an isolation switch operating shaft, a grounding switch operating shaft, an interlocking fixing plate, an isolation operating shaft sleeve, a grounding operating shaft sleeve and a cabinet door interlocking device; the isolating switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a first gear; the grounding switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a second gear, and the second gear is meshed with the first gear; the interlocking fixing plate is fixed on the back of the front supporting plate and is provided with an isolating operation hole corresponding to the isolating switch operation shaft and a grounding operation hole corresponding to the grounding switch operation shaft; the isolation operation shaft sleeve is sleeved at the front end of the isolation switch operation shaft, corresponds to the isolation operation hole and is provided with an isolation abdicating hole for inserting the operation rod; the grounding operation shaft sleeve is sleeved at the front end of the grounding switch operation shaft, corresponds to the grounding operation hole and is provided with a grounding abdication hole for inserting the operation rod; the grounding operation hole is positioned on the left side of the isolation operation hole, the left part of the grounding operation hole is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole is correspondingly set as an isolation working station of the isolation switch; when the grounding abdicating hole rotates to the position corresponding to the grounding station of the grounding switch, the isolating abdicating hole rotates to the left side corresponding to the isolating station of the isolating switch; when the grounding abdicating hole rotates to a position corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to a position corresponding to the isolation switch isolation station; when the grounding abdicating hole rotates to the left side corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to the left side corresponding to the isolation switch working station; the lower end part of the first interlocking rod extends to the position above the working station of the isolating switch, and if the isolating abdicating hole rotates to the position corresponding to the working station of the isolating switch and the circuit breaker is closed, the lower end part of the first interlocking rod is inserted into the isolating abdicating hole; a circuit breaker locking trigger block is arranged at the rear end part of the isolating switch operating shaft, the circuit breaker locking trigger block is a circular block with a notch, a second interlocking plate is fixed below the circuit breaker mechanism extending out of the interlocking plate, and the lower end part of the second interlocking plate is pressed against the notch of the circuit breaker locking trigger block; the cabinet door interlocking device comprises a middle fixing plate arranged on the grounding switch operating shaft, a cabinet door interlocking pressing plate connected with the middle fixing plate and a cabinet door interlocking triggering arc block connected with the cabinet door interlocking pressing plate, the cable chamber is provided with a cable chamber cabinet door, a cabinet door locking hole is formed in the top of the cable chamber cabinet door, a cabinet door locking rod fixed on the cabinet body is arranged above the cabinet door locking hole, and a cabinet door interlocking roller located below the cabinet door interlocking triggering arc block is arranged at the top of the cabinet door locking rod.
The 10kV environment-friendly gas insulation ring main unit provided by the embodiment of the invention at least has the following beneficial effects: by respectively arranging the isolating switch operating shaft and the grounding switch operating shaft which are linked through the first gear and the second gear and arranging the isolating operating hole and the grounding operating hole on the interlocking fixing plate, if the isolating switch is in a working state at present, the isolating abdicating hole is aligned to the isolating switch working station and the grounding abdicating hole is aligned to the left side of the grounding switch isolating station, the operating rod cannot be inserted into the grounding operating hole, and the grounding switch is prevented from being electrically connected; if power needs to be cut off, the operating rod is inserted into the isolation operating hole after the breaker needs to be cut off, the operating rod is rotated anticlockwise to enable the isolation abdicating hole to be aligned with the isolation station of the disconnecting switch, meanwhile, the grounding abdicating hole also rotates to be aligned with the isolation station of the grounding switch, the operating rod can be inserted into the grounding operating hole at the moment, the grounding abdicating hole is rotated clockwise to be aligned with the grounding station of the grounding switch, meanwhile, the isolation abdicating hole also rotates to be aligned with the left side of the isolation station of the disconnecting switch, at the moment, the circuit is in a grounding state, the isolation abdicating hole is staggered with the isolation operating hole, the operating rod cannot be; the isolation abdicating hole rotates to a working position corresponding to the isolating switch and the circuit breaker is closed, and the lower end part of the first interlocking rod is inserted into the isolation abdicating hole to prevent the isolating switch from being disconnected in a charged manner; the lower end part of the second interlocking plate is pressed against the notch of the circuit breaker locking trigger block, and the second interlocking plate supports the second interlocking plate after the disconnecting switch is disconnected, so that the circuit breaker mechanism extends out of the interlocking plate to move upwards to lock the circuit breaker, and the circuit breaker is prevented from being closed by mistake; after the isolating switch is switched on, the arc block is triggered through the cabinet door interlocking to press down the cabinet door interlocking roller, the cabinet door interlocking rod is driven to be inserted into the cabinet door interlocking hole, the cable chamber cabinet door is prevented from being opened, the electrified interval is avoided being mistakenly inserted, the requirement of five-prevention interlocking is met, and the structure design is simple and reasonable, small in size and good in stability.
According to some embodiments of the present invention, the circuit breaker switch includes a circuit breaker hexagonal transmission main shaft connected to the circuit breaker mechanism, a transmission connecting lever disposed on the circuit breaker hexagonal transmission main shaft, an upper connection copper bar, a flexible connection, a vacuum arc-extinguishing chamber, and a copper bar fixing plate, the transmission connecting lever is connected to the upper connection copper bar through the flexible connection, the upper connection copper bar is connected to an upper end of the vacuum arc-extinguishing chamber, and the copper bar fixing plate is connected to a lower end of the vacuum arc-extinguishing chamber.
According to some embodiments of the invention, the vacuum arc-extinguishing chamber is externally provided with a vacuum tube climbing umbrella skirt.
According to some embodiments of the invention, the isolating switch comprises an isolating switch hexagonal transmission main shaft connected with the isolating mechanism, an isolating switch static cutter holder arranged on the isolating switch hexagonal transmission main shaft, a transmission connecting plate and an isolating switch moving cutter head, wherein the isolating switch static cutter holder is connected with the isolating switch moving cutter head through the transmission connecting plate.
According to some embodiments of the invention, a pressure relief valve is provided between the pressure relief chamber and the cable chamber.
According to some embodiments of the present invention, a hole position baffle is further disposed between the front support plate and the interlocking fixing plate, the hole position baffle extends out of the push rod towards the front support plate, a horizontal elongated hole for the push rod to move left and right is disposed on the front support plate, when the push rod is pushed to the left side of the horizontal elongated hole, the hole position baffle shields the grounding operation hole and leaks out of the isolation operation hole, and when the push rod is pushed to the right side of the horizontal elongated hole, the hole position baffle shields the isolation operation hole and leaks out of the grounding operation hole. The hole position baffle is arranged, and only the isolating operation hole or the grounding operation hole can be leaked at each time, so that an operator can further determine whether the isolating switch or the grounding switch is operated at present, and mistakes are avoided.
According to some embodiments of the present invention, the upper side and the lower side of the hole site baffle are respectively provided with an upper positioning block and a lower positioning block, the upper portions of the front support plate, the upper positioning block and the interlocking fixing plate are fixed by screws, the lower portions of the front support plate, the lower positioning block and the interlocking fixing plate are fixed by screws, and the upper positioning block, the lower positioning block, the front support plate and the interlocking fixing plate are enclosed to form a cavity for placing the hole site baffle.
According to some embodiments of the invention, the isolation mechanism further comprises an isolation microswitch and a grounding microswitch for controlling a status indicator lamp, a microswitch trigger plate for triggering the isolation microswitch and the grounding microswitch, and an auxiliary switch crank arm for driving the microswitch trigger plate to rotate, wherein the isolation microswitch and the grounding microswitch are fixed on the rear support plate through a microswitch mounting plate, the left side and the right side of the microswitch trigger plate are provided with microswitch trigger blocks, the middle part of the microswitch trigger plate is hinged on the microswitch mounting plate, one end of the auxiliary switch crank arm is connected with the microswitch trigger plate, and the other end is connected with the rear end part of the grounding switch operating shaft. When the earthing switch operating shaft rotates to switch the state, the auxiliary switch connecting lever drives the micro-switch trigger plate to move, so that the micro-switch trigger block triggers the isolation micro-switch or the earthing micro-switch to realize the state control of the indicator lamp.
According to some embodiments of the invention, the interlocking device further comprises a first interlocking reset mechanism, the first interlocking reset mechanism comprises a first reset support rod and a first reset spring, the first interlocking rod is provided with a first long hole, one end of the first reset support rod is fixed on the cabinet body, and the other end of the first reset support rod penetrates through the first long hole and is connected with the first interlocking rod through the first reset spring.
According to some embodiments of the present invention, the cabinet door locking and resetting device further comprises a cabinet door locking and resetting mechanism, the cabinet door locking and resetting mechanism comprises a second resetting support rod and a second resetting spring, the cabinet door locking rod is provided with a second elongated hole, the second resetting support rod is provided with a resetting pin penetrating through the second elongated hole, and the resetting pin is connected to the cabinet door locking rod through the second resetting spring. When the cabinet door interlocking triggering arc block does not press down the cabinet door interlocking roller any more, the cabinet door locking rod can be reset by the elasticity applied by the second reset spring and is not inserted into the cabinet door locking hole any more.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is an overall schematic view of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 2 is another schematic view of an angle of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 3 is a schematic view of another angle of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 4 is an interlocking schematic diagram of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 5 is an overall schematic view of an isolation mechanism of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an isolation mechanism of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 7 is a schematic view of another angle structure of an isolation mechanism of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 8 is a schematic view of a cabinet door interlocking device of a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a breaker switch and a disconnector of the 10kV environment-friendly gas-insulated ring main unit according to the embodiment of the invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to fig. 6, a 10kV environment-friendly gas-insulated ring main unit according to an embodiment of the present invention includes:
the cabinet body 900 comprises an instrument room 920, a switch room 930, a mechanism room 940, a pressure relief room 950 and a cable room 960, wherein the instrument room 920 is positioned at the top of the cabinet body, the switch room 930 and the mechanism room 940 are positioned in the middle of the cabinet body, the pressure relief room 950 and the cable room 960 are positioned at the lower part of the cabinet body, the mechanism room 940 is positioned in front of the switch room 930, the cable room 960 is positioned in front of the pressure relief room 950, a breaker switch 931 and an isolating switch 932 are arranged in the switch room 930, a cable connector 961 extends from the lower part of the isolating switch 932 to the cable room 960, and an explosion-proof valve 933 is arranged between the switch room 930 and;
a breaker mechanism 910 installed in the mechanism chamber 940 for triggering opening and closing of the breaker switch 931, including a first interlock lever 911 which is displaced downward when the breaker switch 931 operates and a breaker mechanism protrusion interlock plate 912 for locking the breaker mechanism 910, the breaker mechanism protrusion interlock plate 912 being provided at the bottom of the breaker mechanism 910;
the isolating mechanism is arranged in the mechanism chamber 940 and positioned below the circuit breaker mechanism, is used for triggering the opening and closing of the isolating switch 932, and comprises a front supporting plate 100 and a rear supporting plate 200 which are parallel to each other, an isolating switch operating shaft 300, a grounding switch operating shaft 400, an interlocking fixing plate 500, an isolating operating shaft sleeve 320, a grounding operating shaft sleeve 420 and a cabinet door interlocking device; the disconnecting switch operating shaft 300 is bridged between the front support plate 100 and the rear support plate 200 and is sleeved with a first gear 310; the earthing switch operating shaft 400 is bridged between the front support plate 100 and the rear support plate 200, and is sleeved with a second gear 410, and the second gear 410 is meshed with the first gear 310; the interlock fixing plate 500 is fixed to the rear surface of the front support plate 100, and is provided with an isolation operation hole 510 corresponding to the isolation switch operation shaft 300 and a ground operation hole 520 corresponding to the ground switch operation shaft 400; the isolation operation shaft sleeve 320 is sleeved at the front end of the isolation switch operation shaft 300, corresponds to the isolation operation hole 510, and is provided with an isolation abdicating hole 321 for inserting the operation rod; the grounding operation shaft sleeve 420 is sleeved at the front end of the grounding switch operation shaft 400 and corresponds to the grounding operation hole 520, and is provided with a grounding abdication hole 421 for inserting the operation rod; the grounding operation hole 520 is positioned at the left side of the isolation operation hole 510, the left part of the grounding operation hole 520 is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole 520 is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole 510 is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole 510 is correspondingly set as an isolation working station of the isolation switch; when the grounding abdication hole 421 rotates to the corresponding grounding station of the grounding switch, the isolation abdication hole 321 rotates to the left side of the corresponding isolation station of the isolation switch; when the grounding abdication hole 421 rotates to the corresponding grounding switch isolation station, the isolation abdication hole 321 rotates to the corresponding isolation switch isolation station; when the grounding abdication hole 421 rotates to the left side of the corresponding grounding switch isolation station, the isolation abdication hole 321 rotates to the corresponding isolation switch working station; the lower end part of the first interlocking rod 911 extends to the upper part of the working station of the disconnecting switch, and if the isolating abdicating hole 321 rotates to the corresponding working station of the disconnecting switch and the breaker is closed, the lower end part of the first interlocking rod 911 is inserted into the isolating abdicating hole 321; a circuit breaker locking trigger block 330 is arranged at the rear end of the disconnecting switch operating shaft 300, the circuit breaker locking trigger block 330 is a circular block with a notch, a second interlocking plate 913 is fixed below the circuit breaker mechanism extending out of the interlocking plate 912, and the lower end part of the second interlocking plate 913 is pressed against the notch of the circuit breaker locking trigger block 330; the cabinet door interlocking device comprises a middle fixing plate 810 installed on the grounding switch operating shaft 400, a cabinet door interlocking pressing plate 820 connected with the middle fixing plate 810 and a cabinet door interlocking triggering arc block 830 connected with the cabinet door interlocking pressing plate 820, a cable chamber 960 is provided with a cable chamber cabinet door 840, a cabinet door locking hole 841 is formed in the top of the cable chamber cabinet door 840, a cabinet door locking rod 850 fixed on the cabinet body 900 is arranged above the cabinet door locking hole 841, and a cabinet door interlocking roller 860 located below the cabinet door interlocking triggering arc block 830 is arranged at the top of the cabinet door locking rod 850.
According to the 10kV environment-friendly gas insulation ring main unit provided by the embodiment of the invention, the isolating switch operating shaft 300 and the grounding switch operating shaft 400 are respectively arranged, the isolating switch operating shaft 300 and the grounding switch operating shaft 400 are linked through the first gear 310 and the second gear 410, and the isolating operating hole 510 and the grounding operating hole 520 are arranged on the interlocking fixing plate 500, if the isolating switch is in a power-on state at present, namely the isolating switch is in a working state, the isolating abdicating hole 321 is aligned to the isolating switch working station and the grounding abdicating hole 421 is aligned to the left side of the grounding switch isolating station, an operating rod cannot be inserted into the grounding operating hole 520, so that the grounding switch is prevented from being electrically connected; if power needs to be cut off, the operating rod is inserted into the isolation operating hole 510 after the breaker needs to be cut off, the operating rod is rotated anticlockwise to enable the isolation abdicating hole 321 to be aligned with the isolation station of the isolating switch, meanwhile, the grounding abdicating hole 421 also rotates to be aligned with the isolation station of the grounding switch, the operating rod can be inserted into the grounding operating hole 520 at the moment, the grounding abdicating hole 421 is aligned with the grounding station of the grounding switch by clockwise rotation, meanwhile, the isolation abdicating hole 321 also rotates to be aligned with the left side of the isolation station of the isolating switch, at the moment, the operating rod is in a grounding state and the isolation abdicating hole 321 is staggered with the isolation operating hole 510, the operating rod cannot be inserted; the isolation abdicating hole 321 rotates to the corresponding isolation switch working position and the breaker is closed, and the lower end part of the first interlocking rod 911 is inserted into the isolation abdicating hole 321 to prevent the isolation switch from being disconnected in a live manner; the lower end of the second interlock plate 913 abuts against the notch of the circuit breaker locking trigger block 330, and the second interlock plate 913 supports the second interlock plate 913 after the disconnector is disconnected, so that the circuit breaker mechanism extends out of the interlock plate 912 to move up to lock the circuit breaker, thereby preventing the circuit breaker from being mistakenly closed; after isolator combined floodgate, trigger arc piece 830 through cabinet door interlocking and push down cabinet door interlocking gyro wheel 860, drive cabinet door locking lever 850 and insert cabinet door locking hole 841, prevent that cable chamber cabinet door 840 from being opened, avoid the mistake to go into electrified interval, satisfy the requirement of five-prevention interlocking, structural design is simple reasonable moreover, and is small, and stability is good.
Referring to fig. 9, in some embodiments of the present invention, the circuit breaker switch 931 includes a circuit breaker hexagonal transmission main shaft 9311 connected to the circuit breaker mechanism 910, a transmission connecting lever 9312 provided on the circuit breaker hexagonal transmission main shaft 9311, an upper connection copper bar 9313, a flexible connection 9314, a vacuum arc-extinguishing chamber 9315, and a copper bar fixing plate 9316, the transmission connecting lever 9312 is connected to the upper connection copper bar 9313 through the flexible connection 9314, the upper connection copper bar 9313 is connected to an upper end of the vacuum arc-extinguishing chamber 9315, and the copper bar fixing plate 9316 is connected to a lower end of the vacuum arc-extinguishing chamber 9315.
Referring to fig. 9, in some embodiments of the present invention, a vacuum tube climbing umbrella skirt 9317 is provided outside the vacuum arc chute 9315.
Referring to fig. 9, in some embodiments of the present invention, the isolating switch 932 includes an isolating switch hexagonal transmission main shaft 9321 connected to the isolating mechanism, an isolating switch static blade holder 9322 disposed on the isolating switch hexagonal transmission main shaft 9321, a transmission connecting plate 9323, and an isolating switch moving blade 9324, and the isolating switch static blade holder 9322 is connected to the isolating switch moving blade head 9324 through the transmission connecting plate 9323.
Referring to fig. 1, in some embodiments of the present invention, a pressure relief valve 951 is disposed between the pressure relief chamber 950 and the cable chamber 960.
Referring to fig. 6 and 7, in some embodiments of the present invention, a hole position baffle 600 is further disposed between the front support plate 100 and the interlocking fixing plate 500, the hole position baffle 600 extends out of the push rod 610 from the front support plate 100, the front support plate 100 is provided with a horizontal elongated hole 110 for the push rod 610 to move left and right, when the push rod 610 pushes the horizontal elongated hole 110 to the left, the hole position baffle 600 blocks the grounding operation hole 520 and leaks out of the isolating operation hole 510, and when the push rod 610 pushes the right of the horizontal elongated hole 110, the hole position baffle 600 blocks the isolating operation hole 510 and leaks out of the grounding operation hole 520. The hole site baffle 600 is arranged, and only the isolating operation hole 510 or the grounding operation hole 520 can be leaked out each time, so that an operator can further determine whether the isolating switch or the grounding switch is operated at present, and errors are avoided.
Referring to fig. 6 and 7, in some embodiments of the present invention, an upper positioning block 620 and a lower positioning block 630 are respectively disposed on upper and lower sides of the hole site baffle 600, the upper portions of the front support plate 100, the upper positioning block 620 and the interlocking fixing plate 500 are fixed by screws, the lower portions of the front support plate 100, the lower positioning block 630 and the interlocking fixing plate 500 are fixed by screws, and the upper positioning block 620, the lower positioning block 630, the front support plate 100 and the interlocking fixing plate 500 are enclosed to form a chamber for placing the hole site baffle 600.
Referring to fig. 7, in some embodiments of the present invention, the isolation mechanism further includes an isolation microswitch 710 and an earth microswitch 720 for controlling the status indicator light, a microswitch trigger plate 730 for triggering the isolation microswitch 710 and the earth microswitch 720, and an auxiliary switch crank arm 740 for driving the microswitch trigger plate 730 to rotate, the isolation microswitch 710 and the earth microswitch 720 are fixed on the rear support plate 200 by a microswitch mounting plate 750, microswitch trigger blocks 731 are disposed on the left and right sides of the microswitch trigger plate 730, the middle part of the microswitch trigger plate 730 is hinged on the microswitch mounting plate 750, one end of the auxiliary switch crank arm 740 is connected to the microswitch trigger plate 730, and the other end is connected to the rear end of the earth switch operating shaft 400. When the earthing switch operation shaft 400 rotates to switch the state, the auxiliary switch crank arm 740 drives the micro-switch trigger plate 730 to move, so that the micro-switch trigger block 731 triggers the isolation micro-switch 710 or the earthing micro-switch 720 to realize the state control of the indicator lamp.
Referring to fig. 3 and 4, in some embodiments of the present invention, a first interlocking return mechanism is further included, the first interlocking return mechanism includes a first return support bar 914 and a first return spring 915, the first interlocking bar 911 is provided with a first elongated hole 916, one end of the first return support bar 914 is fixed to the cabinet 900, and the other end passes through the first elongated hole 916 and is connected to the first interlocking bar 911 through the first return spring 915.
Referring to fig. 2 and 7, in some embodiments of the present invention, a cabinet door locking reset mechanism is further included, the cabinet door locking reset mechanism includes a second reset support rod 870 and a second reset spring 880, the second reset support rod 870 is fixed on the cabinet body 900, the cabinet door locking rod 850 is provided with a second elongated hole 851, the second reset support rod 870 is provided with a reset pin 871 penetrating through the second elongated hole 851, and the reset pin 871 is connected to the cabinet door locking rod 850 through the second reset spring 880. When the door interlock triggering arc block 830 no longer presses the door interlock roller 860, the door locking lever 850 may be restored by the elastic force applied from the second restoring spring 880 and may not be inserted into the door locking hole 841.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. The utility model provides a 10kV environment-friendly gas insulation looped netowrk cabinet which characterized in that includes:
the cabinet body comprises an instrument room, a switch room, a mechanism room, a pressure relief room and a cable room, wherein the instrument room is positioned at the top of the cabinet body, the switch room and the mechanism room are positioned in the middle of the cabinet body, the pressure relief room and the cable room are positioned at the lower part of the cabinet body, the mechanism room is positioned in front of the switch room, the cable room is positioned in front of the pressure relief room, a breaker switch and an isolating switch are arranged in the switch room, a cable connector lug extends out of the cable room from the lower part of the isolating switch, and an explosion-proof valve is arranged between the switch room and the pressure relief room;
the circuit breaker mechanism is arranged in the mechanism chamber, is used for triggering the opening and closing of the circuit breaker switch, and comprises a first interlocking rod which can displace downwards when the circuit breaker switch acts and a circuit breaker mechanism extending interlocking plate which is used for locking the circuit breaker mechanism, and the circuit breaker mechanism extending interlocking plate is arranged at the bottom of the circuit breaker mechanism;
the isolation mechanism is arranged in the mechanism chamber and positioned below the circuit breaker mechanism, is used for triggering the opening and closing of the isolation switch, and comprises a front supporting plate and a rear supporting plate which are parallel to each other, an isolation switch operating shaft, a grounding switch operating shaft, an interlocking fixing plate, an isolation operating shaft sleeve, a grounding operating shaft sleeve and a cabinet door interlocking device; the isolating switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a first gear; the grounding switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a second gear, and the second gear is meshed with the first gear; the interlocking fixing plate is fixed on the back of the front supporting plate and is provided with an isolating operation hole corresponding to the isolating switch operation shaft and a grounding operation hole corresponding to the grounding switch operation shaft; the isolation operation shaft sleeve is sleeved at the front end of the isolation switch operation shaft, corresponds to the isolation operation hole and is provided with an isolation abdicating hole for inserting the operation rod; the grounding operation shaft sleeve is sleeved at the front end of the grounding switch operation shaft, corresponds to the grounding operation hole and is provided with a grounding abdication hole for inserting the operation rod; the grounding operation hole is positioned on the left side of the isolation operation hole, the left part of the grounding operation hole is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole is correspondingly set as an isolation working station of the isolation switch; when the grounding abdicating hole rotates to the position corresponding to the grounding station of the grounding switch, the isolating abdicating hole rotates to the left side corresponding to the isolating station of the isolating switch; when the grounding abdicating hole rotates to a position corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to a position corresponding to the isolation switch isolation station; when the grounding abdicating hole rotates to the left side corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to the left side corresponding to the isolation switch working station; the lower end part of the first interlocking rod extends to the position above the working station of the isolating switch, and if the isolating abdicating hole rotates to the position corresponding to the working station of the isolating switch and the circuit breaker is closed, the lower end part of the first interlocking rod is inserted into the isolating abdicating hole; a circuit breaker locking trigger block is arranged at the rear end part of the isolating switch operating shaft, the circuit breaker locking trigger block is a circular block with a notch, a second interlocking plate is fixed below the circuit breaker mechanism extending out of the interlocking plate, and the lower end part of the second interlocking plate is pressed against the notch of the circuit breaker locking trigger block; the cabinet door interlocking device comprises a middle fixing plate arranged on the grounding switch operating shaft, a cabinet door interlocking pressing plate connected with the middle fixing plate and a cabinet door interlocking triggering arc block connected with the cabinet door interlocking pressing plate, the cable chamber is provided with a cable chamber cabinet door, a cabinet door locking hole is formed in the top of the cable chamber cabinet door, a cabinet door locking rod fixed on the cabinet body is arranged above the cabinet door locking hole, and a cabinet door interlocking roller located below the cabinet door interlocking triggering arc block is arranged at the top of the cabinet door locking rod.
2. The 10kV environment-friendly gas insulated ring main unit according to claim 1, wherein the circuit breaker switch comprises a circuit breaker hexagonal transmission main shaft connected with the circuit breaker mechanism, a transmission connecting lever arranged on the circuit breaker hexagonal transmission main shaft, an upper connection copper bar, a flexible connection, a vacuum arc extinguish chamber and a copper bar fixing plate, the transmission connecting lever is connected with the upper connection copper bar through the flexible connection, the upper connection copper bar is connected with the upper end of the vacuum arc extinguish chamber, and the copper bar fixing plate is connected with the lower end of the vacuum arc extinguish chamber.
3. The 10kV environment-friendly gas insulation ring main unit according to claim 2, wherein a vacuum tube climbing umbrella skirt is arranged outside the vacuum arc extinguish chamber.
4. The 10kV environment-friendly gas insulation ring main unit according to claim 1, wherein the isolating switch comprises an isolating switch hexagonal transmission main shaft connected with the isolating mechanism, an isolating switch static blade holder, a transmission connecting plate and an isolating switch moving blade head arranged on the isolating switch hexagonal transmission main shaft, and the isolating switch static blade holder is connected with the isolating switch moving blade head through the transmission connecting plate.
5. The 10kV environment-friendly gas insulated ring main unit as claimed in claim 1, wherein a pressure relief valve is disposed between the pressure relief chamber and the cable chamber.
6. The 10kV environment-friendly gas insulated ring main unit according to claim 1, wherein a hole site baffle is further arranged between the front supporting plate and the interlocking fixing plate, a push rod extends out of the hole site baffle towards the front supporting plate, a horizontal strip hole for the push rod to move left and right is arranged on the front supporting plate, when the push rod pushes the left side of the horizontal strip hole, the hole site baffle shields the grounding operation hole and leaks the isolation operation hole, and when the push rod pushes the right side of the horizontal strip hole, the hole site baffle shields the isolation operation hole and leaks the grounding operation hole.
7. The 10kV environment-friendly gas insulation ring main unit as claimed in claim 6, wherein an upper locating block and a lower locating block are respectively disposed at upper and lower sides of the hole site baffle, the upper portions of the front support plate, the upper locating block and the interlocking fixing plate are fixed by screws, the lower portions of the front support plate, the lower locating block and the interlocking fixing plate are fixed by screws, and the upper locating block, the lower locating block, the front support plate and the interlocking fixing plate are enclosed to form a cavity for placing the hole site baffle.
8. The 10kV environment-friendly gas insulated ring main unit according to claim 1, wherein the isolation mechanism further comprises an isolation microswitch and a grounding microswitch for controlling the status indicator lamp, a microswitch trigger plate for triggering the isolation microswitch and the grounding microswitch, and an auxiliary switch connecting lever for driving the microswitch trigger plate to rotate, the isolation microswitch and the grounding microswitch are fixed on the rear support plate through a microswitch mounting plate, microswitch trigger blocks are arranged on the left side and the right side of the microswitch trigger plate, the middle of the microswitch trigger plate is hinged on the microswitch mounting plate, one end of the auxiliary switch connecting lever is connected with the microswitch trigger plate, and the other end of the auxiliary switch connecting lever is connected with the rear end part of the grounding switch operating shaft.
9. The 10kV environment-friendly gas insulated ring main unit according to claim 1, further comprising a first interlocking reset mechanism, wherein the first interlocking reset mechanism comprises a first reset support rod and a first reset spring, the first interlocking rod is provided with a first elongated hole, one end of the first reset support rod is fixed on the main unit body, and the other end of the first reset support rod passes through the first elongated hole and is connected to the first interlocking rod through the first reset spring.
10. The 10kV environment-friendly gas insulated ring main unit according to claim 1, further comprising a cabinet door locking reset mechanism, wherein the cabinet door locking reset mechanism comprises a second reset support rod and a second reset spring fixed on the cabinet body, the cabinet door locking rod is provided with a second elongated hole, the second reset support rod is provided with a reset pin penetrating through the second elongated hole, and the reset pin is connected with the cabinet door locking rod through the second reset spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064975.6A CN111162461A (en) | 2020-01-20 | 2020-01-20 | 10kV environment-friendly gas insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064975.6A CN111162461A (en) | 2020-01-20 | 2020-01-20 | 10kV environment-friendly gas insulation ring main unit |
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| Publication Number | Publication Date |
|---|---|
| CN111162461A true CN111162461A (en) | 2020-05-15 |
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|---|---|---|---|
| CN202010064975.6A Pending CN111162461A (en) | 2020-01-20 | 2020-01-20 | 10kV environment-friendly gas insulation ring main unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541084A (en) * | 2020-11-10 | 2021-10-22 | 北京清畅电力技术股份有限公司 | Quick connector for power taking and data acquisition and environment-friendly gas-insulated ring main unit thereof |
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
| US11476647B1 (en) * | 2021-04-22 | 2022-10-18 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
| CN118523181A (en) * | 2024-06-04 | 2024-08-20 | 巨邦集团有限公司 | Intelligent ring main unit with secondary fusion |
| CN118523181B (en) * | 2024-06-04 | 2024-10-25 | 巨邦集团有限公司 | Intelligent ring main unit with secondary fusion |
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2020
- 2020-01-20 CN CN202010064975.6A patent/CN111162461A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541084A (en) * | 2020-11-10 | 2021-10-22 | 北京清畅电力技术股份有限公司 | Quick connector for power taking and data acquisition and environment-friendly gas-insulated ring main unit thereof |
| CN113541084B (en) * | 2020-11-10 | 2022-07-15 | 北京清畅电力技术股份有限公司 | Quick connector for power taking and data acquisition and environment-friendly gas-insulated ring main unit thereof |
| US11476647B1 (en) * | 2021-04-22 | 2022-10-18 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
| US20220344913A1 (en) * | 2021-04-22 | 2022-10-27 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
| US11984289B2 (en) | 2021-04-22 | 2024-05-14 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
| CN118523181A (en) * | 2024-06-04 | 2024-08-20 | 巨邦集团有限公司 | Intelligent ring main unit with secondary fusion |
| CN118523181B (en) * | 2024-06-04 | 2024-10-25 | 巨邦集团有限公司 | Intelligent ring main unit with secondary fusion |
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