CN101557083B - Handcart-type switch arc suppression device - Google Patents
Handcart-type switch arc suppression device Download PDFInfo
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- CN101557083B CN101557083B CN2009101160990A CN200910116099A CN101557083B CN 101557083 B CN101557083 B CN 101557083B CN 2009101160990 A CN2009101160990 A CN 2009101160990A CN 200910116099 A CN200910116099 A CN 200910116099A CN 101557083 B CN101557083 B CN 101557083B
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- handcart
- voltage transformer
- circuit breaker
- suppression device
- room
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- 230000001629 suppression Effects 0.000 title claims abstract description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004904 shortening Methods 0.000 abstract description 4
- 230000001012 protector Effects 0.000 abstract 1
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a handcart-type switch arc suppression device which comprises a shell. A baffle plate divides a closed space formed by the enclosure of the shell into a busbar room, an instrument room, a circuit breaker handcart room and a voltage transformer handcart room according to functions. The circuit breaker handcart room is internally provided with a vacuum circuit breaker and a voltage transformer internally provided with a built-in fuse is arranged in the voltage transformer handcart room. The handcart-type switch arc suppression device adopts a small-sized and phase-splitting-controllable vacuum circuit breaker to replace an original high-voltage current-limiting fuse and a high-voltage vacuum contactor and adopts the voltage transformer internally provided with the fuse, thereby making room for the arrangement of an overvoltage protector, reducing the inner space of the arc-suppression device to the maximum and realizing the miniaturization of the switch arc-suppression device. In addition, as the handcart-type switch arc-suppression device adopts the circuit breaker handcart and the voltage transformer handcart, the interchangeability of main parts is realized, thus creating good conditions for improving the overhaul efficiency and shortening the overhaul time.
Description
Technical field
The present invention relates to a kind of handcart-type switch arc suppression device.
Background technology
The extinguishing arc harmonic elimination apparatus of using in the present system, hereinafter to be referred as the fuse wire type arc-extinction device, be will with the fault of the vacuum contactor of high-voltage and current-limitation fuse series connection ground connection mutually, extinguishing ground arc and to eliminate the arc grounding overvoltage, thereby avoid becoming the phase fault accident by single-phase arc grounding fault progression.Though vacuum contactor has satisfied the requirement of extinguishing arc harmonic elimination apparatus frequent operation, can not cut-off short circuit current.Because high-voltage and current-limitation fuse need take space in the bigger cabinet, whole extinguishing arc harmonic elimination apparatus can only adopt stationary structure, and the extinguishing arc harmonic elimination apparatus of stationary structure is the big obstacle that the switchgear miniaturization can't be gone beyond.
The KYN28 type switch cabinet of modular construction is commonplace at present; improved the interchangeability of switchgear main element greatly; for raising overhaul efficiency, shortening maintenance interruption duration have been created condition; but because the extinguishing arc harmonic elimination apparatus of fixed structure does not possess interchangeability; when changing high-voltage and current-limitation fuse or maintenance inner member, all need whole extinguishing arc harmonic elimination apparatus is all had a power failure; this has not only increased Field Force's workload, and system may lose the arc grounding protection during this period.In addition, if the user need be transformed into the extinguishing arc harmonic elimination apparatus to the existing PT cabinet in scene, not only on-the-spot retrofit work amount is big, and need all have a power failure whole bus, and this increases the on-the-spot difficulty of transforming greatly.
Summary of the invention
The object of the present invention is to provide a kind of miniaturization handcart-type switch arc suppression device of keeping in repair and changing be convenient to.
For achieving the above object, a kind of handcart-type switch arc suppression device provided by the invention, comprise shell, dividing plate is divided into bus-bar room, control room, circuit breaker cart chamber and voltage transformer handcart chamber with the enclosure space that shell surrounds by function, the indoor vacuum circuit-breaker that is provided with of circuit breaker cart, the indoor voltage transformer that is provided with built-in fuse of voltage transformer handcart.
But the present invention adopts the vacuum circuit-breaker of small-sized phase-splitting control to replace original high-voltage and current-limitation fuse and high-pressure vacuum contactor; adopt the voltage transformer of built-in fuse; for the layout of overvoltage protection device has been vacateed the space; reduce the inner space of arc-extinction device to greatest extent, realized the miniaturization of arc extinguishing device for switch.In addition, adopt circuit breaker cart and voltage transformer handcart simultaneously, realized the interchangeability of critical piece, for raising overhaul efficiency, shortening repair time have been created good condition.
Description of drawings
Fig. 1 is an electric primary system winding diagram of the present invention;
Fig. 2 is an internal structure schematic diagram of the present invention;
Fig. 3 is an external structure schematic diagram of the present invention.
Embodiment
A kind of handcart-type switch arc suppression device, comprise shell 50, observation window 51 is set on the shell 50 observes the internal operation situation of this device for the user, dividing plate is divided into bus-bar room 10, control room 40, circuit breaker cart chamber 20 and voltage transformer handcart chamber 30 with the enclosure space that shell 50 surrounds by function, bus-bar room 10 is positioned at the rear of shell 50, and the place ahead of shell 50 is arranged control room 40, circuit breaker cart chamber 20 and voltage transformer handcart chamber 30 from top to bottom successively.Vacuum circuit-breaker 21 is set in the circuit breaker cart chamber 20, be provided with the voltage transformer 31 of built-in fuse 33 in the voltage transformer handcart chamber 30, be provided with intelligent controller 41 in the control room 40, control room 40 isolates fully with bus-bar room 10, guaranteed the safety of maintenance, debugging and in-service inspection, as shown in Figure 2.
In conjunction with Fig. 1,2, be provided with three-phase main bus bar 11 in the described bus-bar room 10, three-phase main bus bar 11 is erected between the bus casing 12, and three-phase main bus bar 11 is drawn three branch bars 13 and linked to each other with the upper static contact 23 of circuit breaker cart 22 respectively, and upper static contact 23 is positioned at upper static contact box 24.In the described circuit breaker cart chamber 20 circuit breaker cart 22 is set, 3 vacuum circuit-breakers 21 are installed on the circuit breaker cart 22, the following fixed contact 26 of circuit breaker cart 22 is by ground connection copper bar 16 ground connection, following fixed contact 26 is positioned at fixed contact box 27 down, ground connection copper bar 16 passes from current transformer 15, and this structure can realize non-stable arc grounding fault is converted into stable metallic earthing fast.The secondary side two of current transformer 15 terminates at ground connection behind the ammeter two ends, and ammeter is arranged on the card of panel board, and behind this device action, the user can be by the ammeter more direct steady-state current value of read-out system single phase ground fault.
In conjunction with Fig. 1,2, be provided with voltage transformer handcart 32 in the described voltage transformer handcart chamber 30, power supply introducing for fear of voltage transformer 31 is subjected to the restriction of circuit breaker cart 22 positions, 3 fixed contacts 35 of voltage transformer handcart 32 are connected on respectively on three branch bars 13 by cable 17, cable 17 passes in wall bushing 14, fixed contact 35 is positioned at fixed contact box 36,3 moving contacts 37 of voltage transformer handcart 32 link to each other with the input of 3 fuses 33 respectively, fuse 33 is arranged in the outlet sleeve pipe 34 of voltage transformer 31, the output of fuse 33 links to each other with the input of voltage transformer 31, the other end ground connection of voltage transformer 31.Voltage transformer handcart 32 has designed 3 moving contacts 37, these 3 moving contacts 37 are supported by the outlet sleeve pipe 34 of 3 voltage transformers 31 respectively, with the outlet sleeve pipe 34 of voltage transformer 31 support component, make the project organization of voltage transformer handcart 32 simpler, compact as voltage transformer handcart 32 moving contacts 37.Circuit breaker cart 22 and voltage transformer handcart 32 are set simultaneously, on the one hand, when maintenance,, just can change or overhaul the inner member of the two quickly and easily as long as circuit breaker cart 22 or voltage transformer handcart 32 are pulled out; On the other hand, realized the interchangeability of critical piece, for raising overhaul efficiency, shortening repair time have been created good condition.
In conjunction with Fig. 1,2, the input of described overvoltage protection device 38 is connected on the input of fuse 33, the output head grounding of overvoltage protection device 38, and overvoltage protection device 28 is positioned at.The below of voltage transformer 31.Overvoltage protection device 38 comprises the zinc oxide valve plate FR that four head ends join; wherein the tail end of first, second and third zinc oxide valve plate FR1, FR2, FR3 is connected respectively and is connected on the input of fuse 33 behind first, second and third discharging gap CG1, CG2, the CG3, the tail end of the 4th zinc oxide valve plate FR4 ground connection behind the 4th discharging gap CG4 of connecting.
Below in conjunction with Fig. 1,2,3 the invention will be further described.
When system's generation single phase ground fault, vacuum circuit-breaker 21 can move about 15ms, with the direct mutually ground connection of fault.If single-phase arc grounding fault takes place, then can extinguish ground arc rapidly and the arc grounding overvoltage is stablized the level of on-Line Voltage, can effectively avoid the phase fault accident that causes because of arc grounding and accidents such as the ferro resonance that causes because of the arc grounding overvoltage and Explosion of on Arrester; If the metallic earthing fault takes place, then can reduce touch voltage and step voltage greatly, help support equipment and personal safety.
When voltage transformer 31 disconnection faults took place, intelligent controller 41 output switching value contact point signals were so that the user is to carrying out locking because of voltage transformer disconnection causes the relaying protection of misoperation.Send alarm signal simultaneously, the panel of intelligent controller 41 shows fault type (voltage transformer disconnection, fault earthing) and separate, output passive switch amount contact point signal.In addition, this device has the emergency review function, can write down the time of 18 fault generations and the type of fault.This device has also disposed the RS485 interface, can carry out data according to the communication protocol that the user provides and transmit.Voltage transformer 31 in this device can provide signal to measuring instrument and relaying protection, can replace conventional PT cabinet.
In a word, but core of the present invention is to adopt the Fast Speed Vacuum Circuit Breaker 21 of small-sized phase-splitting control as the extinguishing arc execution unit, replace original high-voltage and current-limitation fuse and high-pressure vacuum contactor, reduced taking up room of extinguishing arc execution unit greatly, not only can be implemented in about 15ms fast extinguish arcs and cut-off the line to line fault electric current about 5ms, the extinguishing arc execution unit is arranged on the circuit breaker cart 22 of KYN28 type switch cabinet becomes possibility.Adopt the voltage transformer 31 of built-in fuse 33 simultaneously, for the layout of overvoltage protection device 38 has been vacateed the space.
Claims (5)
1. handcart-type switch arc suppression device, comprise shell (50), it is characterized in that: dividing plate is divided into bus-bar room (10), control room (40), circuit breaker cart chamber (20) and voltage transformer handcart chamber (30) with the enclosure space that shell (50) surrounds by function, vacuum circuit-breaker (21) is set in the circuit breaker cart chamber (20), is provided with the voltage transformer (31) of built-in fuse (33) in the voltage transformer handcart chamber (30);
Be provided with voltage transformer handcart (32) in the described voltage transformer handcart chamber (30), 3 fixed contacts (35) of voltage transformer handcart (32) are connected on respectively on three branch bars (13) by cable (17), fixed contact (35) is positioned at fixed contact box (36), 3 moving contacts (37) of voltage transformer handcart (32) link to each other with the input of 3 fuses (33) respectively, fuse (33) is arranged in the outlet sleeve pipe (34) of voltage transformer (31), the output of fuse (33) links to each other with the input of voltage transformer (31), the other end ground connection of voltage transformer (31);
The input of overvoltage protection device (38) is connected on the input of fuse (33), the output head grounding of overvoltage protection device (38);
Described overvoltage protection device (38) comprises the zinc oxide valve plate FR that four head ends join; wherein the tail end of first, second and third zinc oxide valve plate FR1, FR2, FR3 is connected respectively and is connected on the input of fuse (33) behind first, second and third discharging gap CG1, CG2, the CG3, the tail end of the 4th zinc oxide valve plate FR4 ground connection behind the 4th discharging gap CG4 of connecting.
2. handcart-type switch arc suppression device according to claim 1, it is characterized in that: described bus-bar room (10) is positioned at the rear of shell (50), and the place ahead of shell (50) is arranged control room (40), circuit breaker cart chamber (20) and voltage transformer handcart chamber (30) from top to bottom successively.
3. handcart-type switch arc suppression device according to claim 1 and 2, it is characterized in that: be provided with three-phase main bus bar (11) in the described bus-bar room (10), three-phase main bus bar (11) is erected between the bus casing (12), three-phase main bus bar (11) is drawn three branch bars (13) and is linked to each other with the upper static contact (23) of circuit breaker cart (22) respectively, and upper static contact (23) is positioned at upper static contact box (24).
4. handcart-type switch arc suppression device according to claim 1 and 2, it is characterized in that: be provided with circuit breaker cart (22) in the described circuit breaker cart chamber (20), circuit breaker cart (22) is gone up 3 vacuum circuit-breakers (21) is installed, the following fixed contact (26) of circuit breaker cart (22) is by ground connection copper bar (16) ground connection, following fixed contact (26) is positioned at fixed contact box (27) down, ground connection copper bar (16) passes from current transformer (15), the secondary side two of current transformer (15) terminates at ground connection behind the ammeter two ends, and ammeter is arranged on the card of panel board.
5. handcart-type switch arc suppression device according to claim 1 is characterized in that: be provided with intelligent controller (41) in described control room (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101160990A CN101557083B (en) | 2009-01-20 | 2009-01-20 | Handcart-type switch arc suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101160990A CN101557083B (en) | 2009-01-20 | 2009-01-20 | Handcart-type switch arc suppression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101557083A CN101557083A (en) | 2009-10-14 |
| CN101557083B true CN101557083B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101160990A Active CN101557083B (en) | 2009-01-20 | 2009-01-20 | Handcart-type switch arc suppression device |
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| CN (1) | CN101557083B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522712A (en) * | 2011-12-11 | 2012-06-27 | 长城电器集团有限公司 | Power distribution cabinet system |
| CN107317317A (en) * | 2017-07-03 | 2017-11-03 | 安徽恒凯电力保护设备有限公司 | A kind of arc extinguishing device for switch |
| CN110048335B (en) * | 2018-01-16 | 2020-12-22 | 天津平高智能电气有限公司 | a switch cabinet |
| CN109274070A (en) * | 2018-09-12 | 2019-01-25 | 国网山东省电力公司平阴县供电公司 | 10 kV voltage transformer protection system and protection method |
| CN109599780B (en) * | 2018-12-11 | 2020-12-22 | 江苏沙洲电气有限公司 | Middle-high voltage switch cabinet |
| CN111525434A (en) * | 2020-04-15 | 2020-08-11 | 国网电力科学研究院武汉南瑞有限责任公司 | Overvoltage protection PT cabinet for substation |
| CN111628413A (en) * | 2020-05-20 | 2020-09-04 | 上海华声电气研究所 | Movable safety isolation structure of power supply and distribution system |
| CN112803291A (en) * | 2021-03-09 | 2021-05-14 | 辽宁当凯电力有限公司 | Indoor AC metal armouring draw-out type metering equipment |
| CN116168990B (en) * | 2023-04-21 | 2023-07-07 | 山西金石电力开发有限公司 | Arc extinguishing device for handcart contact of 10KV centrally installed switchgear |
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| CN2569385Y (en) * | 2002-08-22 | 2003-08-27 | 武汉钢铁(集团)公司 | Top separated middle placed high voltage switch cabinet |
| CN2658998Y (en) * | 2003-09-27 | 2004-11-24 | 孙文传 | Combined over voltage protector |
| CN2775899Y (en) * | 2004-11-17 | 2006-04-26 | 益和电气集团股份有限公司 | Built-in voltage mutual inductor hand cart for fuse |
| CN2930032Y (en) * | 2006-04-04 | 2007-08-01 | 遵义长征电器开关设备有限责任公司 | Novel high voltage switch cabinet |
| CN201061141Y (en) * | 2007-06-29 | 2008-05-14 | 安徽菲迈斯电气有限公司 | Armoured withdraw type arc extinguishing switch device |
| CN201355747Y (en) * | 2009-01-20 | 2009-12-02 | 上海合凯电力保护设备有限公司 | Handcart type switch arc blow-out device |
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2009
- 2009-01-20 CN CN2009101160990A patent/CN101557083B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| CN2569385Y (en) * | 2002-08-22 | 2003-08-27 | 武汉钢铁(集团)公司 | Top separated middle placed high voltage switch cabinet |
| CN2658998Y (en) * | 2003-09-27 | 2004-11-24 | 孙文传 | Combined over voltage protector |
| CN2775899Y (en) * | 2004-11-17 | 2006-04-26 | 益和电气集团股份有限公司 | Built-in voltage mutual inductor hand cart for fuse |
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Non-Patent Citations (1)
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| JP特开2007-274861A 2007.10.18 |
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| CN101557083A (en) | 2009-10-14 |
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Assignee: Anhui Guoke Electric Power Equipment Co.,Ltd. Assignor: Shanghai Hekai Power Protection Equipment Co., Ltd. Contract record no.: 2011340000194 Denomination of invention: Handcart-type switch arc suppression device License type: Exclusive License Open date: 20290119 Record date: 20110728 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200319 Address after: 231100 Shuangfeng Road North 28, Shuangfeng Economic Development Zone, Changfeng County, Hefei, Anhui Patentee after: ANHUI HEKAI ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: Songjiang Jiangtian industrial zone of Shanghai City Road 201613 No. 180 Patentee before: SHANGHAI HEKAI POWER PROTECTION EQUIPMENT Co.,Ltd. |