CN203850830U - Intelligent anti-thunder case - Google Patents
Intelligent anti-thunder case Download PDFInfo
- Publication number
- CN203850830U CN203850830U CN201420245925.8U CN201420245925U CN203850830U CN 203850830 U CN203850830 U CN 203850830U CN 201420245925 U CN201420245925 U CN 201420245925U CN 203850830 U CN203850830 U CN 203850830U
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- Prior art keywords
- lightning protection
- ground wire
- lightning
- thunder
- gas discharge
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- 208000025274 Lightning injury Diseases 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 230000001052 transient effect Effects 0.000 claims description 14
- 230000011664 signaling Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 239000003063 flame retardant Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses an intelligent anti-thunder case, comprising a fireproof flame-retardant housing. The housing is internally provided with temperature control protective tubes, voltage dependent resistors, gas discharge tubes, a lightning stroke counter, a telecommand terminal, a power indication lamp for indicating whether a power supply is switched on normally or not, a deterioration indication lamp for indicating whether the anti-thunder case operates normally or not, and a ground wire indication lamp for indicating a ground wire of the anti-thunder case is connected normally or not. The beneficial effects are that the intelligent anti-thunder case is designed as a whole and is convenient and rapid to mount and maintain; the intelligent anti-thunder case combines advantages of switch-type anti-thunder devices and voltage-limiting anti-thunder devices and is good in anti-thunder effect; current leakage is prevented, the service life is prolonged, and the intelligent anti-thunder case can be applied to places such as system large-scale machine rooms; and the indication lamps are comprehensive, a function of lighting stroke counting is achieved, and daily detection and maintenance are facilitated.
Description
Technical field
The utility model belongs to thunder resisting equipment field, relates in particular to a kind of Intelligent lightning protection case.
Background technology
The components and parts that modern low pressure lightning protection device adopts mainly be take graphic discharge gap, gas discharge tube, transient diode, piezo-resistance etc. as main.The materials such as graphic discharge gap, gas discharge tube have very strong surge absoption ability; through-current capacity large (more than can accomplishing 100KA); very high insulation resistance and the very little advantages such as parasitic capacitance leakage current; but its general residual voltage higher (2～4KV); reaction time long (>100ns); there is power frequency continued flow, be not suitable as the lightning protection below secondary.The material such as transient diode, piezo-resistance has reaction speed fast (<25ns), residual voltage lower (1～2KV), and without advantages such as afterflows, but its through-current capacity generally less (100KA is following).
When actual lightning Protection Design, construction, generally will adopt the lightning protection device of graphic discharge gap, gas discharge tube material as one-level lightning protection device, most of lightning current be mainly used in releasing; Using adopting the lightning protection device of transient diode, piezoresistive material as secondary, three grades of lightning protection devices, be mainly used in limiting lightning overvoltage.In lightening protection engineering, lightning protection device wants classification to install, and is used in conjunction with each other and just plays good lightning protection effect.
Existing votage limit type lightning protection device (piezo-resistance), in AC power supply system, can produce leakage current, and the piezo-resistance of poor-performing can become the self-destruction of may generating heat greatly because of leakage current after using a period of time.
Utility model content
The purpose of this utility model is exactly in order to address the above problem, propose a kind of reasonable in design, can eliminate the induction lightening of power circuit, and the Intelligent lightning protection case within the scope that induction lightening pressure-controlled is born at equipment, be specially adapted to the lightning protection of the large-scale machine rooms of system such as finance, communication, government, enterprise.
To achieve these goals, the utility model adopts following technical scheme:
A kind of Intelligent lightning protection case, comprise fire protection flame retarding shell, in described shell, be provided with temperature and control protective tube, piezo-resistance, gas discharge tube, lightning stroke counter, remote signalling terminal and be used to indicate power supply indicator that whether power supply normally connect, be used to indicate deterioration indicator light that whether lightning protection box normally work and be used to indicate lightning protection box ground wire and whether be connected normal ground wire indicator light.
Described temperature is controlled protective tube, piezo-resistance and gas discharge tube and is connected in series successively composition series arm, the described series arm ground connection after the live wire of access supply line and zero line of connecting respectively; Between described gas discharge tube and ground wire, be respectively equipped with remote signalling terminal, described remote signalling terminal be connected deterioration indicator light and connect.
On supply line's ground wire, connect respectively ground wire indicator light and lightning stroke counter, on supply line's live wire, connect power supply indicator.
Described gas discharge tube is replaceable is transient diode.
Under normal operating conditions, gas discharge tube or transient diode open circuit, lightning-protection module does not have leakage current.
When surge produces; first conducting within nanosecond of piezo-resistance; gas discharge tube or transient diode conducting when voltage reaches the starting resistor of gas discharge tube or transient diode, protected equipment everywhere current potential equates, the short circuit of pulse lightning current is released in ground simultaneously.
Described lightning stroke counter is used for recording number of lightning strokes, can do zero clearing and process.
Described Intelligent lightning protection case is installed in parallel in supply line.
Described power supply indicator is opened when power connection, and power supply extinguishes while disconnecting.
Described deterioration indicator light extinguishes when lightning protection box is normally worked, and during the deteriorated damage of lightning protection box, opens.
Described ground wire indicator light ground wire indicator light when lightning protection box ground wire connects correct and earth resistance and meets the requirements extinguishes, and when lightning protection box ground wire disconnects, malunion is normal or earth resistance is undesirable, opens.
The beneficial effects of the utility model are:
The utility model is by the effective integration of gas discharge tube and piezo-resistance, keeping that original lightning protection device residual voltage is low, under the prerequisite of fast response time, the advantage such as easy for installation, making the leakage current of lightning protection device is zero, the reliability of lightning-protection system is increased, reduce maintenance and construction cost, saved space resources.
The utility model lightning stroke counter is arranged on lightning protection device earth terminal, and effectively the number of times of record thunderbolt also can be processed in zero clearing; Power supply indicator, deterioration indicator light, ground wire indicator light can effectively be monitored the working condition of low-voltage supply line respectively, the working condition of lightning-protection module, and it is normal etc. whether ground wire connects.Can must show the working condition of lightning protection box is directly perceived, be convenient to routine testing and maintenance.
The integrated design of the utility model lightning protection device is convenient for installation and maintenance quick; The advantage that combines switching mode lightning protection device and votage limit type lightning protection device, lightning protection effect is better; Leakage current, lightning protection device ILS, is applicable to the places such as the large-scale machine room of each system.Indicator light is more complete, and band counting thunder function, is convenient to routine testing and maintenance.
Accompanying drawing explanation
Fig. 1 is the utility model intelligent lightning protecting box structure schematic diagram;
Wherein, 1. temperature is controlled protective tube, 2. piezo-resistance, 3. gas discharge tube or transient diode, 4. lightning stroke counter, 5. ground wire indicator light, 6. deterioration indicator light, 7. power supply indicator, 8. remote signalling terminal.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
As shown in Figure 1, a kind of Intelligent lightning protection case.It comprises gas discharge tube (GTD) or the transient diode (TVS) 3 that is arranged on lightning-protection module inside, piezo-resistance (MOV) 2, temperature is controlled protective tube 1, fire protection flame retarding shell, also has lightning stroke counter 4, remote signalling terminal 8, power supply indicator 7, deterioration indicator light 6, ground wire indicator light 5.The protection components and parts such as gas discharge tube 3, piezo-resistance 2 are arranged in lightning protection box inside by the mode matrix of series connection.
Before piezo-resistance 2, seal in gas discharge tube 3, because gas discharge tube 3 parasitic capacitances are very little, can make the total capacitance of series arm reduce to several pF.In this branch road, gas discharge tube 3 will play an on-off action, and while there is no transient voltage, it can separate piezo-resistance 2 and system, makes piezo-resistance 2 almost without leakage current.
Intelligent lightning protection case is overvoltage surge independent protective, and Intelligent lightning protection case is installed in parallel in circuit.First conducting within nanosecond of piezo-resistance 2 when surge produces in lightning protection component, discharge tube conducting when voltage reaches gas discharge tube 3 starting resistor, makes protected equipment equipotential everywhere, the short circuit of pulse lightning current is released in ground simultaneously.After lightning current is released, revert to again high-impedance state, thereby do not affect the normal power supply of protected equipment.Intelligent lightning protection case has adopted two place's surge components and parts simultaneously, under normal operating conditions, due to gas discharge tube 3 open circuits, there is no leakage current, makes large leap ahead of 2 life-span of piezo-resistance; When lightning current passes through Intelligent lightning protection case, piezo-resistance 2 deboosts are low, the advantage of fast response time is just embodied, and two kinds of components and parts have made up shortcoming separately mutually, have brought into play advantage separately.
Lightning protection box is provided with lightning stroke counter 4, has counting thunder function, and can do zero clearing and process.
Lightning protection box inside is provided with power supply indicator 7, for routine testing and maintenance.When switching on power, indicator light is opened, and when deenergization, indicator light extinguishes.
Lightning protection box inside is provided with deterioration indicator light 6, and deterioration indicator light is connected with the remote signalling terminal of lightning-protection module, for routine testing and maintenance.When lightning-protection module is normally worked, deterioration indicator light extinguishes, and when the deteriorated damage of lightning-protection module, deterioration indicator light is opened (alarm condition).
Lightning protection box inside is provided with ground wire indicator light 5, for routine testing and maintenance.When the connection of lightning protection box ground wire is correct and earth resistance meets the requirements, ground wire indicator light extinguishes, and when lightning protection box ground wire disconnects, malunion is normal or earth resistance is undesirable, ground wire indicator light is opened (alarm condition).
The utility model is Intelligent lightning protection case, and it is widely used in electric power system electric equipment, after described gas discharge tube 3 and piezo-resistance 2 series connection, is connected between two poles, is arranged on Intelligent lightning protection case inner.
For different environment for use requirements, above-mentioned discharge tube can be selected discharge voltage 70V-3KV, discharging current 5KA-120KA, and piezo-resistance can be selected the Multiple Types such as 13D150K, 14D463K, 20D571K.
Switching mode electric component and votage limit type electric component combine and mutually learn from other's strong points to offset one's weaknesses, and bring into play advantage separately, and in the lightning current of releasing, effective deboost level, avoids electric equipment to be struck by lightning.
Whether be provided with ground wire indicator light 5, can effectively detect lightning protection box ground wire and connect normally, whether earth resistance is up to state standards, can directly for user, show the operating state of lightning protection box.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection range; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection range of the present utility model.
Claims (8)
1. an Intelligent lightning protection case, comprise fire protection flame retarding shell, it is characterized in that, in described shell, be provided with temperature and control protective tube, piezo-resistance, gas discharge tube, lightning stroke counter, remote signalling terminal and be used to indicate power supply indicator that whether power supply normally connect, be used to indicate deterioration indicator light that whether lightning protection box normally work and be used to indicate lightning protection box ground wire and whether be connected normal ground wire indicator light;
Described temperature is controlled protective tube, piezo-resistance and gas discharge tube and is connected in series successively composition series arm, the described series arm ground connection after the live wire of access supply line and zero line of connecting respectively; Between described gas discharge tube and ground wire, be respectively equipped with remote signalling terminal, described remote signalling terminal be connected deterioration indicator light and connect;
On supply line's ground wire, connect respectively ground wire indicator light and lightning stroke counter, on supply line's live wire, connect power supply indicator.
2. a kind of Intelligent lightning protection case as claimed in claim 1, is characterized in that, described gas discharge tube is replaceable is transient diode.
3. a kind of Intelligent lightning protection case as claimed in claim 1 or 2, is characterized in that, under normal operating conditions, and gas discharge tube or transient diode open circuit, lightning-protection module does not have leakage current;
When surge produces; first conducting within nanosecond of piezo-resistance; gas discharge tube or transient diode conducting when voltage reaches the starting resistor of gas discharge tube or transient diode, protected equipment everywhere current potential equates, the short circuit of pulse lightning current is released in ground simultaneously.
4. a kind of Intelligent lightning protection case as claimed in claim 1, is characterized in that, described lightning stroke counter is used for recording number of lightning strokes, can do zero clearing and process.
5. a kind of Intelligent lightning protection case as claimed in claim 1, is characterized in that, described Intelligent lightning protection case is installed in parallel in supply line.
6. a kind of Intelligent lightning protection case as claimed in claim 1, is characterized in that, described power supply indicator is opened when power connection, and power supply extinguishes while disconnecting.
7. a kind of Intelligent lightning protection case as claimed in claim 1, is characterized in that, described deterioration indicator light extinguishes when lightning protection box is normally worked, and during the deteriorated damage of lightning protection box, opens.
8. a kind of Intelligent lightning protection case as claimed in claim 1; it is characterized in that; described ground wire indicator light ground wire indicator light when lightning protection box ground wire connects correct and earth resistance and meets the requirements extinguishes, and when lightning protection box ground wire disconnects, malunion is normal or earth resistance is undesirable, opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245925.8U CN203850830U (en) | 2014-05-14 | 2014-05-14 | Intelligent anti-thunder case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245925.8U CN203850830U (en) | 2014-05-14 | 2014-05-14 | Intelligent anti-thunder case |
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| Publication Number | Publication Date |
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| CN203850830U true CN203850830U (en) | 2014-09-24 |
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| CN201420245925.8U Expired - Lifetime CN203850830U (en) | 2014-05-14 | 2014-05-14 | Intelligent anti-thunder case |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377682A (en) * | 2014-11-20 | 2015-02-25 | 孙巍巍 | Novel anti-thunder box |
| CN107144724A (en) * | 2017-05-22 | 2017-09-08 | 广州市徕信电子科技有限公司 | A kind of arrester real time and on line monitoring method |
| CN109327022A (en) * | 2017-08-01 | 2019-02-12 | 费希尔-罗斯蒙特系统公司 | The method and apparatus of surge protection for dcs component |
| CN110829402A (en) * | 2019-11-05 | 2020-02-21 | 大唐可再生能源试验研究院有限公司 | Lightning protection system for wind field current collection line |
| CN111799768A (en) * | 2020-04-15 | 2020-10-20 | 北京永逸舒克防腐蚀技术有限公司 | Constant potential rectifier synthesizes lightning protection device |
-
2014
- 2014-05-14 CN CN201420245925.8U patent/CN203850830U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377682A (en) * | 2014-11-20 | 2015-02-25 | 孙巍巍 | Novel anti-thunder box |
| CN107144724A (en) * | 2017-05-22 | 2017-09-08 | 广州市徕信电子科技有限公司 | A kind of arrester real time and on line monitoring method |
| CN109327022A (en) * | 2017-08-01 | 2019-02-12 | 费希尔-罗斯蒙特系统公司 | The method and apparatus of surge protection for dcs component |
| CN109327022B (en) * | 2017-08-01 | 2023-11-07 | 费希尔-罗斯蒙特系统公司 | Method and apparatus for surge protection of distributed control system components |
| CN110829402A (en) * | 2019-11-05 | 2020-02-21 | 大唐可再生能源试验研究院有限公司 | Lightning protection system for wind field current collection line |
| CN111799768A (en) * | 2020-04-15 | 2020-10-20 | 北京永逸舒克防腐蚀技术有限公司 | Constant potential rectifier synthesizes lightning protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Xinluo Avenue 250000 Shandong city of Ji'nan province high tech Industrial Development Zone No. 1166 orsus Building 1 building 20 layer Patentee after: SHANDONG ZHAOYU ELECTRONICS CO.,LTD. Address before: 250000 Shandong city of Ji'nan province high tech Zone (Lixia District) Tianchen Road No. 798 Patentee before: SHANDONG ZHAOYU ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |