CN2569385Y - Top separated middle placed high voltage switch cabinet - Google Patents
Top separated middle placed high voltage switch cabinet Download PDFInfo
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- CN2569385Y CN2569385Y CN 02278878 CN02278878U CN2569385Y CN 2569385 Y CN2569385 Y CN 2569385Y CN 02278878 CN02278878 CN 02278878 CN 02278878 U CN02278878 U CN 02278878U CN 2569385 Y CN2569385 Y CN 2569385Y
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- cabinet
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Abstract
The utility model relates to a top separated middle placed high voltage switch cabinet which belongs to the power supply high voltage switch cabinet. The utility model solves the present problems that in the frequent operation occasions, the switch is easily shifted, contact of a main contact is unreliable, a breaker can be removed when the overhaul is conducted, a ground wire can be hung and connected, a main bus is stopped, etc. The utility model has the technical proposal that the utility model comprises a cabinet casing (1), a rear door (2) of the switch cabinet, a cable room (3), a bus room (4), a switch room (5) and a control room (6) and also comprises a three-phase main bus (7), an upper contact (8) of the switch, a lower contact (9) of the switch, a contact box (10), a ground interlock device (11), which are arranged in the bus room (4), the breaker (12), an interlock shutter (13), a guide rod (14), a rotating shaft (15) and a through wall ceramic bottle (16), which are arranged in the switch room (5). The cable room (3), the bus room (4), the switch room (5) and the control room (6) are mutually isolated and closed, and an upper isolated knife switch (17) is arranged in the bus room (4). A lower jaw of the upper isolated knife switch (17) is electrically connected with the upper contact (8) of the switch through the through wall ceramic bottle (16). The upper contact (8) of the switch, the lower contact head (9) of the switch and the contact box (10) are arranged in the cable room (3), and a metal sealer (18) and a shielding case (19) are arranged on the guide rod (14).
Description
(1) technical field
The utility model relates to power supply unit, especially belongs to the power supply high voltage switch cubicle.
(2) background technology
High-tension switch cabinet is the indispensable power supply unit of electric power system.Along with the development of vacuum technique and becoming better and approaching perfection day by day of switchgear, little, simple in structure with volume is the intermediate switchgear cabinet dominate on market at present of main characteristic.ZS1 type intermediate switchgear cabinet as ABB AB has representativeness.Its vacuum switch is the middle handcart, and volume is little, flexible and convenient operation.The switch main contact is a cluster, contacts more reliable.Rational pressure release passage is arranged, but shortcoming: the one, be used for the occasion of frequent operation because open, failure of oscillation is moving, easily makes the switch displacement; Two is that a main contact still follows inserting mode, thus still have the heating and contact unreliable; The 3rd, when overhauling, must remove circuit breaker in the cable vault, also want hanging earthing conductor, otherwise easily go wrong, and when the maintenance circuit breaker, must stop main bus bar, thereby influenced the normal power supply of system; The 4th, bus-bar room is interior because main branch bar and the upper contact head box of arranging A, B, C three-phase main bus bar and causing the switch upper contact head, make switch upper contact head and bus contact directly, when breaking down in the bus-bar room or during upper contact head generation welding, just must work by the halt system bus, be to articulate the ground bus even more importantly, accident treatment finishes, and must remove the busbar grounding line otherwise can cause the accident that shorted to earth is blown out.
(3) technology contents
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of switch to be difficult for producing displacement in the frequent operation occasion, one time main contact can not generate heat, contact is reliable, when overhaul the cable vault, need not remove circuit breaker, not need hanging earthing conductor, also can not produce going up of electric leakage and isolate the middle high-tension switch cabinet.
Its technical measures: on isolate the middle high-tension switch cabinet, comprise the cabinet shell, be arranged on the switch cubicle back door on the cabinet shell, cable vault, bus-bar room, switch gear room and the control room in the cabinet shell, be arranged on the three-phase main bus bar in the bus-bar room, contact box, the ground connection interlock of contact under switch upper contact head, the switch, dress switch upper contact head, be arranged on the circuit breaker in the switch gear room, chain shutter, guide rod, rotating shaft, porcelain vase through walls, do not produce leaky in the high-tension switch cabinet for making, it is cable vault, bus-bar room, switch gear room and control room made isolates each other and seals.For three-phase main bus bar and switch upper contact head are separated, reach non-interfering purpose, isolation switch is set in bus-bar room.The lower claw of last isolation switch is electrically connected by porcelain vase through walls and switch upper contact head.For solving the problem that the bus-bar room locus is loaded onto isolation switch inadequately, circuit breaker and bus-bar room are isolated and fully for using switch in the frequent operation occasion to be difficult for producing displacement and making that contact and contact box achieve a fixed connection under switch upper contact head, the switch, a main contact can not generated heat, contact is reliable, so contact and contact box under switch upper contact head, the switch are located in the cable vault.Because operation is gone up the link rod of isolation switch in the cable vault, guide rod directly is connected with bus-bar room, so cause the pressure release passage of cable vault and bus-bar room to be interconnected, is head it off, so metal enclosed device and cage are set on guide rod.
Operation principle and interlock connection: the operating principle of (1), last isolation switch 1., isolation switch closes
When circuit breaker is in off-state, operating personnel clockwise rotate rotating shaft with rotary handle before cabinet, drive guide rod and rise, and make the isolation switch combined floodgate.Voltage arrives the fixed contact of contact box through last isolation switch and porcelain vase through walls from main bus bar.The control room shows the "on" position that goes up isolation switch.2., isolation switch on the branch
When circuit breaker is in off-state, when last isolation switch is "on" position, operating personnel rotate rotating shaft with the rotary handle inhour before cabinet, the drive guide rod descends, make the closing position of leaving fast of isolation switch turn to the ground connection interlock, and force the ground connection head to move downward, promote the ground connection interlock and rotate.Gate interlock was removed after two feature: a, switch cubicle were arranged after the last isolation switch ground connection, and the maintainer could open the switch cubicle back door; Earth detector in b, the cable vault shows ground connection.(2), interlock connection 1., the interlocking between circuit breaker and the last isolation switch:
When circuit breaker is in off-state, could operate isolation switch and close automatically, branch operation interlocking shutter.Circuit breaker is in interlocking shutter closure when closing state, prevents misoperation.2., go up the interlocking at isolation switch and switch cubicle back door
The blade of last isolation switch turns to earthing device to force the ground connection head to move downward, and the ground connection guide rod is rotated removed the interlocking at switch cubicle back door when if last isolation switch is in closing position, and the switch cubicle back door is locked.In like manner, the switch cubicle back door is an opening, and last isolation switch can't carry out closing operation.(3), indication
Ground connection in the closing of isolation switch and circuit breaker, gate-dividing state and the cable vault solves the problem that the bus-bar room locus is loaded onto isolation switch inadequately on the control room shows in addition, circuit breaker and bus-bar room are isolated and fully for using switch in the frequent operation occasion to be difficult for producing displacement and making that contact and contact box achieve a fixed connection under switch upper contact head, the switch, a main contact can not generated heat, contact is reliable, so contact and contact box under switch upper contact head, the switch are located in the cable vault.Because operation is gone up the link rod of isolation switch in the cable vault, guide rod directly is connected with bus-bar room, so cause the pressure release passage of cable vault and bus-bar room to be interconnected, is head it off, so metal enclosed device and cage are set on guide rod.
Operation principle and interlock connection: the operating principle of (1), last isolation switch 1., isolation switch closes
When circuit breaker is in off-state, operating personnel clockwise rotate rotating shaft with rotary handle before cabinet, drive guide rod and rise, and make the isolation switch combined floodgate.Voltage arrives the fixed contact of contact box through last isolation switch and porcelain vase through walls from main bus bar.The control room shows the "on" position that goes up isolation switch.2., isolation switch on the branch
When circuit breaker is in off-state, when last isolation switch is "on" position, operating personnel rotate rotating shaft with the rotary handle inhour before cabinet, the drive guide rod descends, make the closing position of leaving fast of isolation switch turn to the ground connection interlock, and force the ground connection head to move downward, promote the ground connection interlock and rotate.Gate interlock was removed after two feature: a, switch cubicle were arranged after the last isolation switch ground connection, and the maintainer could open the switch cubicle back door; Earth detector in b, the cable vault shows ground connection.(2), interlock connection 1., the interlocking between circuit breaker and the last isolation switch:
When circuit breaker is in off-state, could operate isolation switch and close automatically, branch operation interlocking shutter.Circuit breaker is in interlocking shutter closure when closing state, prevents misoperation.2., go up the interlocking at isolation switch and switch cubicle back door
The blade of last isolation switch turns to earthing device to force the ground connection head to move downward, and the ground connection guide rod is rotated removed the interlocking at switch cubicle back door when if last isolation switch is in closing position, and the switch cubicle back door is locked.In like manner, the switch cubicle back door is an opening, and last isolation switch can't carry out closing operation.(3), indication
The earth detector ground connection indication in the closing of isolation switch and circuit breaker, gate-dividing state and the cable vault on the control room shows in addition.
Advantage of the present utility model is to be difficult for producing displacement at the switch of frequent operation occasion, and one time main contact can not generate heat, and contact is reliable, when overhaul the cable vault, need not remove circuit breaker, do not need hanging earthing conductor, can not produce electric leakage yet, can effectively prevent misoperation, work safety, reliable.
(4) description of drawings
Fig. 1 is the structural representation of last isolation middle high-tension switch cabinet
Fig. 2 is the last isolation switch interlocking schematic diagram of last isolation middle high-tension switch cabinet
Fig. 3 is the schematic diagram of fixedlying connected for the upper and lower contact of switch of last isolation middle high-tension switch cabinet with contact box
(5) concrete technology implementation scheme
Last isolation middle high-tension switch cabinet, comprise cabinet shell (1), be installed in the switch cubicle back door (2) on the cabinet shell (1), cable vault (3) in the cabinet shell (1), bus-bar room (4), switch gear room (5) and control room (6), be arranged on the three-phase main bus bar (7) in the bus-bar room (4), switch upper contact head (8), contact under the switch (9), the contact box (10) of dress switch upper contact head (8), ground connection interlock (11), be arranged on the circuit breaker (12) in the switch gear room (5), chain shutter (13), guide rod (14), rotating shaft (15), porcelain vase through walls (16), do not produce leaky in the high-tension switch cabinet for making, it is with the cable vault (3), bus-bar room (4), switch gear room (5) and control room (6) make that intercommunication crosses that steel plate is isolated and sealing.For three-phase main bus bar (7) and switch upper contact head (8) are separated, reach non-interfering purpose, isolation switch (17) is set in bus-bar room (4).The lower claw of last isolation switch (17) is electrically connected by porcelain vase through walls (16) and switch upper contact head (8).For solving the problem that bus-bar room (4) locus is loaded onto isolation switch (17) inadequately, circuit breaker (12) and bus-bar room (4) are isolated and fully for using switch in the frequent operation occasion to be difficult for producing displacement and making that contact (9) is connected with contact box (10) realization bolt under switch upper contact head (8), the switch, for ease of repair and maintenance, so contact (9) under switch upper contact head (8), the switch and contact box (10) are located in the cable vault (3).Because operation is gone up the link rod (23) of isolation switch (17) in cable vault (3), guide rod (14) directly is connected with bus-bar room (4), so cause the cable vault (3) and the pressure release passage of bus-bar room (4) to be interconnected, be head it off, so go up welding or screw connection steel alloy or steel sealer (18) and adopt cage (19) high temperature resistant, fire-retardant, shock-resistant, that also can insulate at guide rod (14).
Operation principle and interlock connection: the operating principle of (1), last isolation switch (17) 1., isolation switch closes
When circuit breaker (12) is in off-state, operating personnel clockwise rotate rotating shaft (15) with rotary handle before cabinet, drive guide rod (14) and rise, and make isolation switch (17) combined floodgate.Voltage arrives the fixed contact of contact box (10) through last isolation switch (17) and porcelain vase through walls (16) from main bus bar.The "on" position of isolation switch (17) in control room (6) demonstration.2., isolation switch (17) on the branch
When circuit breaker (12) is in off-state, when last isolation switch (17) is "on" position, operating personnel rotate rotating shaft (15) with the rotary handle inhour before cabinet, driving guide rod (14) descends, make isolation switch (17) leave the closing position fast and turn to ground connection interlock (11), and force the ground connection head to move downward, promoting ground connection interlock (11) rotates, have two feature: a, switch cubicle back door (2) interlocking to remove after last isolation switch (17) ground connection, the maintainer could open switch cubicle back door (2); Earth detector in b, cable vault (3) shows ground connection.(2), interlock connection 1., the interlocking between circuit breaker (12) and the last isolation switch (17):
Circuit breaker (12) could be operated isolation switch (17) when being in off-state, and close automatically, branch operation interlocking shutter (13).Circuit breaker (12) is in interlocking shutter (13) closure when closing state, prevents misoperation.2., go up the interlocking at isolation switch (17) and switch cubicle back door (2): the blade of going up isolation switch (17) turns to earthing device to force the ground connection head to move downward, make ground connection guide rod (14) rotation remove the interlocking of switch cubicle back door (2) (if last isolation switch (17) is when being in closing position, switch cubicle back door (2) are locked).In like manner, switch cubicle back door (2) are opening, and last isolation switch (17) can't carry out closing operation.(3), indication
The earth detector ground connection indication in the closing of isolation switch (17) and circuit breaker (12), gate-dividing state and cable vault (3) in control room (6) demonstration in addition.
Claims (6)
1, last isolation middle high-tension switch cabinet, comprise cabinet shell (1), be arranged on the switch cubicle back door (2) on the cabinet shell (1), cable vault (3) in the cabinet shell (1), bus-bar room (4), switch gear room (5) and control room (6), be arranged on the three-phase main bus bar (7) in the bus-bar room (4), switch upper contact head (8), contact under the switch (9), the contact box (10) of dress switch upper contact head (8), ground connection interlock (11), be arranged on the circuit breaker (12) in the switch gear room (5), chain shutter (13), guide rod (14), rotating shaft (15), porcelain vase through walls (16), it is characterized in that cable vault (3), bus-bar room (4), switch gear room (5) and control room (6) isolate each other and seal, isolation switch (17) is set in bus-bar room (4), the lower claw of last isolation switch (17) is electrically connected by porcelain vase through walls (16) and switch upper contact head (8), switch upper contact head (8), contact under the switch (9) and contact box (10) are located in the cable vault (3), and metal enclosed device (18) and cage (19) are set on guide rod (14).
2, according to claim 1 going up isolated the middle high-tension switch cabinet, it is characterized in that being provided with between circuit breaker (12) and last isolation switch (17) machinery or electrical interlocks device (20).
3, according to claim 1 going up isolated the middle high-tension switch cabinet, it is characterized in that being provided with between last isolation switch (17) and switch cubicle back door (2) machinery or electrical interlocks device (21).
4, the middle high-tension switch cabinet of go up isolating according to claim 1 is characterized in that can fixedlying connected between circuit breaker (12) and the three-phase main bus bar (7), also can adopt socket connection.
5, according to claim 1 going up isolated the middle high-tension switch cabinet, it is characterized in that maintenance chamber (22) is arranged in the cable vault (3).
6, according to claim 1 going up isolated the middle high-tension switch cabinet, it is characterized in that rotating shaft (15) is for revolving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278878 CN2569385Y (en) | 2002-08-22 | 2002-08-22 | Top separated middle placed high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278878 CN2569385Y (en) | 2002-08-22 | 2002-08-22 | Top separated middle placed high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2569385Y true CN2569385Y (en) | 2003-08-27 |
Family
ID=33742082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278878 Expired - Fee Related CN2569385Y (en) | 2002-08-22 | 2002-08-22 | Top separated middle placed high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2569385Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557083B (en) * | 2009-01-20 | 2011-09-07 | 上海合凯电力保护设备有限公司 | Handcart-type switch arc suppression device |
| CN107134722A (en) * | 2017-06-21 | 2017-09-05 | 四川达卡电气有限公司 | 12kV generator outlet killer switch equipment |
-
2002
- 2002-08-22 CN CN 02278878 patent/CN2569385Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557083B (en) * | 2009-01-20 | 2011-09-07 | 上海合凯电力保护设备有限公司 | Handcart-type switch arc suppression device |
| CN107134722A (en) * | 2017-06-21 | 2017-09-05 | 四川达卡电气有限公司 | 12kV generator outlet killer switch equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030827 Termination date: 20100822 |