CN2481036Y - Composite large load and current power source lightning protector - Google Patents
Composite large load and current power source lightning protector Download PDFInfo
- Publication number
- CN2481036Y CN2481036Y CN 01206146 CN01206146U CN2481036Y CN 2481036 Y CN2481036 Y CN 2481036Y CN 01206146 CN01206146 CN 01206146 CN 01206146 U CN01206146 U CN 01206146U CN 2481036 Y CN2481036 Y CN 2481036Y
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- circuit
- big
- combined type
- pipe lid
- heavy load
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Abstract
The utility model discloses a composite large load and current power source lightning protector, which comprises a box body, a first-stage and a second-stage lightening proof protective circuits consisting of electronic components, a filter circuit, a status display circuit, an overcurrent protective circuit, and a signal collecting, processing and counting display circuit. The utility model is characterized in that the first-stage and the second-stage lightening proof protective circuits are connected in series by an isolating circuit formed by a decoupling inductor. The utility model has the advantages that: the utility model is large in leakage current, incapable of being damaged under the impact of 100 KA lightning, low in voltage limit, good in lightning protection effect, unlimited in the size of installation environment, long in life-span and wide in application scope.
Description
The utility model belongs to the power arrester technical field, is specifically related to the big through-flow power arrester of a kind of combined type heavy load.
Direct lightning strike, thunder and lightning such as induction thunder etc. are a kind of natural phenomenas common in the daily life, and the generation that is accompanied by it tends on power transmission line moment and forms tens or the overcurrent of kiloamperes up to a hundred.So powerful immediate current is most of electronic equipments, and is unaffordable as the communication mobile base station, so usually by its damage.In addition, the transient effect of power supply network, the nuclear radiation that produces in the environment, electromagnetic pulse etc. also can be brought to electronic equipment and disturb and destruction.
In order to take precautions against and avoid these destructions and interference, all be that lightning arrester is installed on power-supply system usually.The lightning arrester that uses on power-supply system at present generally all is the parallel connection of adopting, or lightning-arrest for one-level, or takes shelter from the thunder for secondary.If adopt one-level lightning-arrest, the subject matter of its existence is " residual voltage " height, to the electronic equipment protection weak effect of sensitivity.If adopt secondary lightning-arrest, though can reduce " residual voltage " to a certain extent, but still it is higher, but also brought new problem, the i.e. designing requirement of the lightning-arrest standard of basis, installing space between first order lightning arrester and the second level lightning arrester must be greater than 10 meters, otherwise overcurrent will directly puncture second level lightning arrester.Because the starting resistor of first order lightning arrester often is higher than the starting resistor of second level lightning arrester, when two-stage lightning arrester mounting distance during less than 10 meters, producing superpotential thunder and lightning etc. will be earlier to low the hitting of starting resistor, on the one hand the bigger first order lightning arrester of starting resistor can not be played a role, two aspects have also lost and have adopted the lightning-arrest meaning of secondary, do not reach due lightning-arrest effect.And will install according to this traditional standard, for a mobile communication base station of having only tens square metres of areas itself, can't satisfy installation requirement again.In addition, the spacing more than 10 meters of the lightning-arrest installation and design code requirement of secondary its objective is to obtain enough line resistances between first and second grade lightning arrester, to intercept thunder and lightning.Though line resistance can be brought into play the effect that intercepts thunder and lightning, under the certain situation of spacing, it can only be a steady state value, can not increase its impedance along with the increase of lightening pulse frequency, thereby relatively poor to the protection effect of the electronic equipment of sensitivity.
The purpose of this utility model is to overcome the defective that prior art exists, and provides that a kind of leakage current is big, residual voltage is low, lightning-arrest effective, is not subjected to the big through-flow power arrester of combined type heavy load of installation environment size restriction.
The purpose of this utility model is reached by a kind of like this technical solution: promptly on the basis that first and second grade lightning protection circuit, condition indication circuit, filter circuit, current foldback circuit and the signals collecting, processing and the counting display circuit that comprise casing and be made up of electronic devices and components constitute, first and second grade lightning protection circuit is connected in series by the buffer circuit that decoupling inductor constitutes.
Because the utility model is connected in series first and second grade lightning protection circuit, the overcurrent that thunder and lightning etc. is produced in Circuits System must be released through lightning arrester one by one, thereby makes low that the deboost of acquisition is connected in parallel.The induction reactance of the decoupling inductor of serial connection can increase with the increase of thunder and lightning isopulse frequency in the middle of adding, and can force powerful lightning current major part to be released from first order lightning arrester again, and its " residual voltage " promptly is limited in the withstand voltage scope of equipment.In addition because the decoupling inductor volume is little, so be not subjected to the restriction of installation environment size.
If the utility model need be installed in the less place of environment for use; as the mobile communication base station; because buffer circuit has adopted the less decoupling inductor of volume, can will all be assemblied in together in the same casing and use by first and second grade lightning protection circuit, buffer circuit, condition indication circuit, filter circuit, current foldback circuit and signals collecting, processing and the counting display circuit that electronic devices and components are formed.
The used decoupling inductor of the utility model is to be made of shell, the hollow enamelled wire that is wound in skeleton and is fixed by insulating encapsulating material.The characteristics that this decoupling inductor is little except volume, induction reactance can increase with thunder and lightning isopulse frequency owing to also carried out the insulation embedding, thereby also have withstand voltage height, do not make moist, advantages such as long service life, good looking appearance.Employed fire proofing in the insulating encapsulating material wherein is as long as reach the V-O level.Then relevant as for selecting for use of enamelled wire with the load of its protected equipment, generally be that load is big more, the sectional area of the enamelled wire of selecting for use is big more, on the contrary then little, this is the known knowledge of this area ordinary skill.
The utility model circuit and assembly structure are provided by the following drawings and embodiment.
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is a kind of concrete circuit theory diagrams of the present utility model;
Fig. 3 is the another kind of concrete circuit theory diagrams of the utility model;
Fig. 4 is the structural representation of decoupling inductor;
Fig. 5 is the structural representation of big current drain pipe;
Fig. 6 is a kind of assembly structure schematic diagram of the present utility model.
Also the utility model is described in further detail to provide embodiment below in conjunction with accompanying drawing, but the utility model is not limited to following examples.
Embodiment one:
Present embodiment is the used lightning arrester of single phase poaer supply system.
Shown in Fig. 1,6, the utility model comprises casing 22 and first and second grade lightning protection circuit 1,3, buffer circuit 3, filter circuit 4, condition indication circuit 5, current foldback circuit 8 and signals collecting, processing and the counting display circuit 9 be made up of electronic devices and components.First and second grade lightning protection circuit 1,3 is connected in series by buffer circuit 2; filter circuit 4 is connected in parallel on the second level lightning protection circuit 3; condition indication circuit 5 and current foldback circuit 8 then are serially connected on the branch road of second level lightning protection circuit 3 after the parallel connection, and connect lightning proof ground 10 with first order lightning protection circuit 1 through signals collecting, processing and counting display circuit 9.These foregoing circuits of being formed and connected by electronic devices and components all are fixed in to be installed on the liner plate 20, and is fixed on casing 22 bottoms by fixed connecting piece 21.
Wherein first order lightning protection circuit 1 can constitute by the piezo-resistance of five parallel connections or by big current drain pipe or by piezo-resistance series connection gas discharge tube at least, to satisfy the designing requirement of most of lightning current of releasing.Present embodiment adopts the piezo-resistance RV of five parallel connections
1, RV
2As first order lightning protection circuit 1, as shown in Figure 2.Buffer circuit 2 is decoupling inductor L
1, L
2This decoupling inductor is to be made of shell 11, the hollow enamelled wires 14 that are wound in skeleton 12 and fixed by insulating encapsulating material 13, sees Fig. 4.Second level lightning protection circuit 3 adopts piezo-resistance RV
3, RV
4Pressure limiting, filter circuit 4 adopts capacitor C
1Filtering.5 of condition indication circuits are by current-limiting resistance R
1, R
2, steering diode VD
1, VD
2And dichromatic LED HL
1Constitute steering diode VD
1, VD
2Installation polarity is opposite, dichromatic LED HL
1It is also opposite that interior two luminous tubes connect polarity, and draw the piezo-resistance RV of a lead and second level lightning protection circuit from two luminous tube mid points
3Air switch QF with current foldback circuit 8 employings
1Tie point link to each other, make condition indication circuit 5 respectively with piezo-resistance RV
1With air switch QF
1In parallel.Zero line N connects no filtering and state indication and current foldback circuit on the branch road.
Because what second level lightning protection circuit 3 adopted is piezo-resistance, piezo-resistance promptly is low resistive state after deterioration, if can not in time safeguard and change, will influence lightning-arrest effect.For this reason, on the basis of existing current foldback circuit 8, between second level lightning protection circuit 3 and current foldback circuit 8, also be serially connected with hot dropout protective circuit 6 and distant news switch 7, to form duplicate protection.This heat dropout protective circuit 6 is to be made of spring and fuse element etc.When lightning current when lightning proof ground PE releases, will be by current sensor SX, rectifier bridge VD
3～VD
6, piezo-resistance RV
5, filter capacitor C
2Gather, handle and count demonstration with signals collecting, processing and 9 pairs of lightning currents of counting display circuit that count display PC constitutes, with the lightning-arrest effect of accurate reflection.
When the utility model is installed, after earlier the power-supply system master switch being disconnected, it is connected in the power-supply system, master switch and overcurrent protection switch QF close again
1, electric current is through inductance L
1, L
2, current-limiting resistance R
1, R
2, steering diode VD
1, VD
2, light-emitting diode HL
1, switch QF
1Flow to lightning proof ground PE, at this moment indicator light HL
1Show green, show that the utility model has been in lightning-arrest operating state.When power-supply system was struck by lightning, the lightning arrester before load equipment promptly rapidly started, at first by the piezo-resistance RV of first order lightning protection circuit
1, RV
2The lightning current of releasing is because serial connection decoupling inductor L thereafter
1, L
2The high impedance that presents forces most of lightning current to be released from first order lightning arrester.Along with fraction thunder and lightning process decoupling inductor L
1, L
2And capacitor C
1Continue invasion after the filtering, second level lightning protection circuit makes voltage limit in the withstand voltage scope of power consumption equipment promptly with the speed responsing of nanosecond and the pressure limiting of releasing.The actual through-flow 100KA that reaches of first order lightning protection circuit, second level lightning protection circuit limitations voltage can be less than 1000V.Piezo-resistance RV when second level lightning protection circuit
3, RV
4After using certain hour, when deterioration presented low resistive state, hot dropout protective circuit 6 heatings broke away from electrical network, piezo-resistance RV
3, RV
4Display window will become red by green conversion, and provide a switching signal by distant news switch 7 and give Control Room, this moment indicator light HL
1Still be green.If hot dropout protective circuit 6 lost efficacy the air switch QF of overcurrent protection
1The disconnection of will tripping rapidly, indicator light HL
1To become redness by green, electric current promptly changes the flow direction through being low-impedance piezo-resistance RV
3, indicator light HL
1Red luminotron, steering diode VD
2, current-limiting resistance R
2Flow to lightning proof ground PE and form deterioration indication loop, show piezo-resistance RV this moment
3Need to safeguard or changed.When lightning current when lightning proof ground PE releases, electric current will be earlier by current sensor SX coupling, then through VD
3～VD
6Diode rectification, piezo-resistance RV
5Amplitude limit, capacitor C
2Energy storage promotes counter PC counting at last and shows.
Embodiment two:
Present embodiment is the used lightning arrester of three-phase power supply system
Shown in Fig. 1,3,6, present embodiment also comprises casing 22 and first and second grade lightning protection circuit 1,3 of being made up of electronic devices and components, buffer circuit 2, filter circuit 4, condition indication circuit 5, hot dropout protective circuit 6, distant news switch 7, current foldback circuit 8 and signals collecting, processing and numeration display circuit 9.In view of connection, installation, function and the operation principle of these circuit are all identical with embodiment one, do not state so omit.Different one be present embodiment because of being mounted in the three-phase power supply system, so three identical circuit of structure that are connected on phase line A, B, the C are arranged, see Fig. 3; The 2nd, that first order lightning protection circuit 1 adopts is big current drain pipe V
1～V
4, see Fig. 3.This bleeder pipe be by discharge electrode 15,19, clamp nut 16, pipe cover 17 and the base 18 that insulate constitute, see Fig. 5, pipe cover 17 and all is spill with the cross sectional shape of the base 18 that insulate, the middle part correspondence has tapped through hole, pipe cover 17 concave surfaces and links to each other the formation tube chamber with screw thread coupling on the insulation base 18 concave surface internal ring walls downwards and by the screw thread on the external annulus of bottom; The cross sectional shape of discharge electrode 15,19 is "T"-shaped, is installed in respectively that pipe cover 17, in the tapped through hole at insulation base 18 middle parts, makes discharge electrode bar head all be positioned at pipe and cover 17 with the tube chamber of base 18 formation of insulating and leave the gap each other.16 of clamp nuts are placed on the outer discharge electrode 15 of pipe lid.The electric current that this bleeder pipe is not only released is big, and good stability, fusing point height, can protect the spacing in gap all the time, can short circuit, afterflow.This bleeder pipe also can be regulated the gap between two discharge electrodes as required in addition.
The utlity model has following advantage:
Leakage current big, can be not damaged under the lightning current of 100KA impacts, deboost is low, lightning protection Effective.
2. the decoupling inductor that adopts the insulating materials embedding has not only reduced the volume of arrester as buffer circuit, simplifies Installation, make it not to be subjected to installation environment size restriction, and improved moisture resistance, the anti-corrosion property and stable of arrester The property.
3. the dual-protection circuit that designs at second level protection circuit lightning protection circuit, the security that has not only improved arrester, Also can change the arrester serviceability simultaneously and monitor, be convenient to on-call maintenance or replacing.
4. because big current drain pipe is to utilize the air gap that lightning current is released, thus short circuit can not appear, continuous Stream, thereby long service life.
5. widely applicable, not only applicable design and installation without environment also is suitable for the use of different electrical power system.
Claims (10)
1. big through-flow power arrester of combined type heavy load; comprise casing (22); by first and second grade lightning protection circuit (1,3), filter circuit (4), condition indication circuit (5), current foldback circuit (8) and signals collecting, processing and the counting display circuit (9) that electronic devices and components are formed, it is characterized in that first and second grade lightning protection circuit (1,3) is connected in series by the buffer circuit (2) that decoupling inductor constitutes.
2. the big through-flow power arrester of combined type heavy load according to claim 1 is characterized in that first and second grade lightning protection circuit (1,3), buffer circuit (2), filter circuit (4), condition indication circuit (5), current foldback circuit (8) and signals collecting, processing and the counting display circuit (9) be made up of electronic devices and components all are assemblied in the same casing (22) together.
3. the big through-flow power arrester of combined type heavy load according to claim 1 and 2 is characterized in that decoupling inductor is by shell (11), hollow enamelled wire (14) formation that is wound in skeleton (12) and is fixed by insulating encapsulating material (13).
4. the big through-flow power arrester of combined type heavy load according to claim 1 and 2 is characterized in that first order lightning protection circuit (1) or constitutes by the piezo-resistance of at least five parallel connections or by big current drain pipe or by piezo-resistance series connection gas discharge tube.
5. the big through-flow power arrester of combined type heavy load according to claim 3 is characterized in that first order lightning protection circuit (1) or constitutes by the piezo-resistance of at least five parallel connections or by big current drain pipe or by piezo-resistance series connection gas discharge tube.
6. the big through-flow power arrester of combined type heavy load according to claim 4, it is characterized in that big current drain pipe is to be made of discharge electrode (15,19), clamp nut (16), pipe lid (17) and insulation base (18), pipe lid (17) all is spill with the cross sectional shape of insulation base (8), the middle part correspondence has tapped through hole, pipe lid (17) concave surface links to each other the formation tube chamber with screw thread coupling on insulation base (18) the concave surface internal ring wall downwards and by the screw thread on the external annulus of bottom; The cross sectional shape of discharge electrode (15,19) is "T"-shaped, be installed in respectively in the tapped through hole at pipe lid (17), insulation base (18) middle part, make discharge electrode bar head all be positioned at the tube chamber that pipe lid (17) and insulation base (18) form and leave the gap each other; Clamp nut (16) is placed on the outer discharge electrode (15) of pipe lid.
7. the big through-flow power arrester of combined type heavy load according to claim 5, it is characterized in that big current drain pipe is to be made of discharge electrode (15,19), clamp nut (16), pipe lid (17) and insulation base (18), pipe lid (17) all is spill with the cross sectional shape of insulation base (8), the middle part correspondence has tapped through hole, pipe lid (17) concave surface links to each other the formation tube chamber with screw thread coupling on insulation base (18) the concave surface internal ring wall downwards and by the screw thread on the external annulus of bottom; The cross sectional shape of discharge electrode (15,19) is "T"-shaped, be installed in respectively in the tapped through hole at pipe lid (17), insulation base (18) middle part, make discharge electrode bar head all be positioned at the tube chamber that pipe lid (17) and insulation base (18) form and leave the gap each other; Clamp nut (16) is placed on the outer discharge electrode (15) of pipe lid.
8. according to claim 1 or 2 or 5 or the 6 or 7 big through-flow power arresters of described combined type heavy load, it is characterized in that also being serially connected with hot dropout protective circuit (6) between current foldback circuit (8) and the second level lightning protection circuit (3).
9. the big through-flow power arrester of combined type heavy load according to claim 3 is characterized in that also being serially connected with hot dropout protective circuit (6) between current foldback circuit (8) and the second level lightning protection circuit (3).
10. the big through-flow power arrester of combined type heavy load according to claim 4 is characterized in that also being serially connected with hot dropout protective circuit (6) between current foldback circuit (8) and second level lightning protection circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206146 CN2481036Y (en) | 2001-05-08 | 2001-05-08 | Composite large load and current power source lightning protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206146 CN2481036Y (en) | 2001-05-08 | 2001-05-08 | Composite large load and current power source lightning protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2481036Y true CN2481036Y (en) | 2002-03-06 |
Family
ID=33626829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206146 Expired - Lifetime CN2481036Y (en) | 2001-05-08 | 2001-05-08 | Composite large load and current power source lightning protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2481036Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561820C (en) * | 2006-11-07 | 2009-11-18 | 深圳市威尔利实业有限公司 | Decoupling anti-lightning circuit and lightning protection connecting terminal |
| CN102780218A (en) * | 2012-07-20 | 2012-11-14 | 刘晶川 | Two-port lightning protection device for display screen and message board of highway |
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN104124678A (en) * | 2014-08-13 | 2014-10-29 | 重庆正博仪器工业有限公司 | Lightning-protection isolator and lightning-protection isolating circuit |
| CN105048438A (en) * | 2015-08-15 | 2015-11-11 | 吉林吉信通信咨询设计有限公司 | Anti-thunder type harmonic protective device |
| CN108693434A (en) * | 2018-08-29 | 2018-10-23 | 深圳天溯计量检测股份有限公司 | A kind of Leakage Current of Zinc-oxide Lightning Arresters test device |
-
2001
- 2001-05-08 CN CN 01206146 patent/CN2481036Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561820C (en) * | 2006-11-07 | 2009-11-18 | 深圳市威尔利实业有限公司 | Decoupling anti-lightning circuit and lightning protection connecting terminal |
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN102780218A (en) * | 2012-07-20 | 2012-11-14 | 刘晶川 | Two-port lightning protection device for display screen and message board of highway |
| CN104124678A (en) * | 2014-08-13 | 2014-10-29 | 重庆正博仪器工业有限公司 | Lightning-protection isolator and lightning-protection isolating circuit |
| CN104124678B (en) * | 2014-08-13 | 2017-05-31 | 重庆正博仪器工业有限公司 | Lightning protection isolator and lightning protection isolation circuit |
| CN105048438A (en) * | 2015-08-15 | 2015-11-11 | 吉林吉信通信咨询设计有限公司 | Anti-thunder type harmonic protective device |
| CN108693434A (en) * | 2018-08-29 | 2018-10-23 | 深圳天溯计量检测股份有限公司 | A kind of Leakage Current of Zinc-oxide Lightning Arresters test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WANG DEYAN Free format text: FORMER NAME OR ADDRESS: SICHUAN ZHONGGUANG HIGH TECHNOLOGY INST. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Wang Deyan Patentee before: Sichuan Zhongguang High Technology Inst. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110508 Granted publication date: 20020306 |