CN103969529A - Multi-layer gap type lightning arrester indicating circuit - Google Patents
Multi-layer gap type lightning arrester indicating circuit Download PDFInfo
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- CN103969529A CN103969529A CN201410201437.1A CN201410201437A CN103969529A CN 103969529 A CN103969529 A CN 103969529A CN 201410201437 A CN201410201437 A CN 201410201437A CN 103969529 A CN103969529 A CN 103969529A
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Abstract
The invention discloses a multi-layer gap type lightning arrester indicating circuit. The multi-layer gap type lightning arrester indicating circuit comprises multiple layers of gaps, a triggering circuit and an indicating circuit body, wherein the triggering circuit is composed of a plurality of capacitors which are connected in parallel, a first series circuit is formed among the multiple layers of gaps, a first parallel circuit is formed by the multiple layers of gaps in the first series circuit and the corresponding capacitors, and a gap idling capacitor is arranged at the tail end of the first series circuit of the multiple layers of the gaps; the indicating circuit body comprises a diode, a light-emitting tube, a resistor, a gas discharge tube and a fuse, the diode is connected with the two electrodes of the gas discharge tube corresponding to the diode after being connected with the light-emitting tube and the resistor in series so that a second parallel circuit can be formed, the second parallel circuit is further connected with the fuse in series so that the indicating circuit body can be formed, the indicating circuit body and the first series circuit are connected to the positive electrode L and the negative electrode N of a power supply in parallel, and when overvoltage appears on the circuit, protective indication can be achieved through indicator lights or mechanical windows.
Description
Technical field
The present invention is a kind of indicating circuit, and particularly a kind of multilayer clearance-type lightning protection device indicating circuit that can protect power supply, belongs to lightning protection device field.
Background technology
Along with the raising of shocking preventing technology, the application of multilayer clearance lightning-proof device is also more and more extensive, and multilayer clearance lightning-proof device does not in the market have lightning protection function instruction mostly, is only the instruction of power supply status even if there is instruction yet, there is no the instruction of lightning protection function; Meanwhile, due to the special detection mode of this series products, cause the functional verification of this class multilayer gap product to be also difficult to complete at the scene, so in use, user cannot know the performance condition of such lightning protection device to lightning protection device at all; In the time that product lightning protection function lost efficacy, also there will not be any instruction and alarm, the lightning protection device of inefficacy, with in the line, does not possess its due protection effect, in the time having thunderbolt to occur, can cause the damage of protected equipment; The present situation that cannot judge for this type of product function, the function Indication Characteristics that increases lightning protection device is necessary, can help easily user to identify properties of product situation by indicating circuit, changes in time product, in the time that thunderbolt occurs, guarantee that client's equipment is not subject to broken by lightning.
Therefore; in order better to address the above problem; to carry out brand-new design to conventional power source class surging prevention device; design a kind of multilayer clearance-type lightning protection device indicating circuit; this indicating circuit is mainly used in the function instruction of multilayer gap-like anti-lightening protector, adopts following technical proposals to be designed to the final purpose of this paper.
Summary of the invention
The object of the technical program is to overcome the deficiencies in the prior art; in order to meet the needs of function Indication Characteristics of lightning protection device; utilize the principle of multilayer gap breakdown voltage and the comparison of indicating circuit operation voltage; in conjunction with fuse; the devices such as luminotron; by electronics pilot lamp mode or mechanical form mode, complete the instruction to lightning protection device defencive function, make it avoid the damage that thunder and lightning induction voltage, power supply interference, static discharge etc. cause.
The object of the technical program, will be achieved by the following technical programs:
A kind of multilayer clearance-type lightning protection device indicating circuit, it comprises multilayer gap, trigger circuit and indicating circuit, described trigger circuit are made up of several Capacitance parallel connections, between described multilayer gap, form the first series circuit, the two ends that are positioned at the multilayer gap on the first series circuit form the first parallel circuit with corresponding electric capacity, described vacant electric capacity in gap of multilayer gap the first series circuit end; It is characterized in that: described indicating circuit comprises diode, luminotron, resistance, gas-discharge tube, fuse, between described diode and luminotron, resistance, after series connection, connect to form the second parallel circuit with corresponding gas-discharge tube the two poles of the earth, the second described parallel circuit is connected into indicating circuit with fuse again, anodal L and the negative pole N of described indicating circuit access in parallel with the first series circuit power supply.
When there are one or more inefficacies in described multilayer gap, or when described trigger circuit fault causes multilayer gap to lose efficacy, when there being superpotential to occur in circuit, multilayer gap U1-4, ... in U ﹙ n-1 ﹚-n, there will be to have at least the gap can be breakdown, at this moment, line over-voltage will continue to raise, along with superpotential rising, between both positive and negative polarity L-N, there is the superpotential U2-3 higher than Up, this voltage raises while reaching the operating voltage Up of gas-discharge tube, gas-discharge tube conducting, gas-discharge tube after conducting can make circuit excess current flow through from fuse F and the gas-discharge tube branch road of indicating circuit, now, due to the current limliting without any resistance and inductance on this branch road, very low (generally at 15V) left and right falls in the arc voltage of gas-discharge tube simultaneously, under high-tension effect, fuse F is easy to reach its fusing current, fuse failure, and then the pilot lamp of described indicating circuit also will extinguish, for the lightning protection device that adopts indicator type fuse indicating circuit, the fuse of fusing also can provide mechanical form instruction simultaneously, represents that product lightning protection function lost efficacy, prompting changing.
The application of the technical program structure, its outstanding effect shows as:
1, the technical program adopts the function indicating circuit of voltage comparison technology, can judge safely and reliably whether lightning protection device exists the lightning protection function of coincidence circuit requirement, even if any one gap, multilayer gap goes wrong, indicating circuit can move at once under a little higher than one times of Up voltage, because very low (generally at 15V) left and right falls in the arc voltage of gas-discharge tube, loop resistance is very low, under the effect of this voltage, electric current reaches the fusing current of fuse very soon, after fuse failure, and then extinguishing pilot lamp, reminding user is changed product as early as possible;
2, this circuit start is fast, highly sensitive, due to the voltage difference start-up circuit based on any one gap, multilayer gap, with respect to other gap linear voltage comparator circuits of the same type, this circuit belongs to the low residual voltage circuit of switching mode, can make product start fast safeguard function, ensure terminal device avoid superpotential damage;
3, main benefit is also: this small product size is less, meets existing industrial power miniaturization, maximizes power demand, and it is convenient to implement;
Below in conjunction with embodiment accompanying drawing, the specific embodiment of the present invention is done further to decompose, so that the technical program is easier to understand, grasp.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of technical solution of the present invention embodiment.
In figure, the implication of each Reference numeral is:
U-multilayer gap, R-resistance, F-fuse, GDT-gas-discharge tube, D1-DN-diode, G-luminotron, C-electric capacity, 101-indicating circuit, 201-trigger circuit.
Embodiment
As shown in Figure 1, it is a kind of multilayer clearance-type lightning protection device indicating circuit that the technical program proposes, adopt the function indicating circuit of voltage comparison technology, can judge safely and reliably whether lightning protection device exists the lightning protection function of coincidence circuit requirement, and indicator signal is shown to outside by luminotron, ensure terminal device avoid superpotential damage; It comprises multilayer gap U, trigger circuit 201 and indicating circuit 101, described trigger circuit 101 are composed in parallel by several capacitor C, between described multilayer gap U, form the first series circuit, the two ends that are positioned at the multilayer gap U on the first series circuit form the first parallel circuit with corresponding capacitor C, described vacant electric capacity in gap of multilayer gap U the first series circuit end; It is characterized in that: described indicating circuit 101 comprises diode D1-DN, luminotron G, resistance R, gas-discharge tube GDT, fuse F, between described diode D1-DN and luminotron G, resistance R, after series connection, connect to form the second parallel circuit with corresponding gas-discharge tube GDT the two poles of the earth, the second described parallel circuit is connected into indicating circuit 101 with fuse F again, anodal L and the negative pole N of described indicating circuit 101 access in parallel with the first series circuit power supply.
Further, described fuse F can be indicator type fuse, current mode fuse, temperature mode fuse, is preferably indicator type fuse, and this fuse F has functional mark, show tags difference when fusing or non-blown state.
Further; described multilayer gap U is graphite material or gas discharge medium material; multilayer gap U by single gap each other continuously overlapped in series form; each gap breakdown voltage magnitude≤Up(lightning protection device level of protection); because this small product size is less; highly low, under limited space condition, can better install.
Further, described GDT gas-discharge tube, its voltage breakdown is U2-3, its voltage magnitude scope Up< U2-3, preferably voltage magnitude scope Up< U2-3 <2Up.
Described diode D1-DN is made up of at least one diode, and the reverse withstand voltage summation of all diode D1-DN need be higher than the voltage breakdown Up in each gap.
Again further, in the time that multilayer interval work is normal, the superpotential excess current that in circuit, lightning protection device can bear, the voltage breakdown in each gap is respectively U1-4, U4-5, U5-6, U6-7... U ﹙ n-1 ﹚-n, and the voltage breakdown in each gap is all less than lightning protection device and punctures trigger voltage Up; In the time not having superpotential to occur, this multilayer gap U does not all have breakdown, described multilayer gap U in open-circuit condition; And the gas-discharge tube GDT of described indicating circuit 101 does not have breakdown yet, now in indicating circuit 101, electric current will be from L line by fuse F, resistance R, diode D1-DN, luminotron G branch road are to N line, and luminotron G pilot lamp Chang Liang, represents that these indicating circuit 101 lightning protection functions are normal.
In the time having superpotential to occur in circuit, under the capacitor C effect of described trigger circuit, multilayer gap U has one or more inefficacies, or when trigger circuit 201 faults cause multilayer gap U to lose efficacy, multilayer gap U1-4, ... in U ﹙ n-1 ﹚-n, there will be and have at least a gap to puncture, and there is the superpotential higher than Up in the meeting after multilayer gap U punctures between L-N, because the superpotential of gas-discharge tube GDT in described indicating circuit 101 is higher than trigger voltage Up, gas-discharge tube GDT punctures conducting, gas-discharge tube GDT after conducting can make circuit excess current flow through from fuse F and the gas-discharge tube GDT branch road of indicating circuit 101, very low (generally at 15V) left and right falls in the arc voltage of gas-discharge tube GDT simultaneously, under superpotential effect, fuse F reaches its fusing current very soon, fuse failure, and then the luminotron G of indicating circuit 101 will extinguish, represent that product lightning protection function lost efficacy, prompting changing.
Finally it should be noted that, above is only one of concrete exemplary applications of the present invention, all can take the circumstances into consideration as the case may be to select to substitute components and parts, but the protection domain of invention is not constituted any limitation in actual application.
Claims (5)
1. a multilayer clearance-type lightning protection device indicating circuit, it comprises multilayer gap, trigger circuit and indicating circuit, described trigger circuit are made up of several Capacitance parallel connections, between described multilayer gap, form the first series circuit, the two ends that are positioned at the multilayer gap on the first series circuit form the first parallel circuit with corresponding electric capacity, described vacant electric capacity in gap of multilayer gap the first series circuit end; It is characterized in that: described indicating circuit comprises diode, luminotron, resistance, gas-discharge tube, fuse, between described diode and luminotron, resistance, after series connection, connect to form the second parallel circuit with corresponding gas-discharge tube the two poles of the earth, the second described parallel circuit is connected into indicating circuit with fuse again, anodal L and the negative pole N of described indicating circuit access in parallel with the first series circuit power supply.
2. multilayer clearance-type lightning protection device indicating circuit according to claim 1, it is characterized in that: described fuse can be indicator type fuse, current mode fuse, temperature mode fuse, be preferably indicator type fuse, this fuse device has functional mark, show tags difference when fusing or non-blown state.
3. multilayer clearance-type lightning protection device indicating circuit according to claim 1; it is characterized in that: described multilayer gap is graphite material or gas discharge medium material; multilayer gap is superposeed continuously each other and two is formed by single gap, each gap breakdown voltage magnitude≤Up(lightning protection device level of protection).
4. multilayer clearance-type lightning protection device indicating circuit according to claim 1, it is characterized in that: described GDT gas-discharge tube, its voltage breakdown is U2-3, its voltage magnitude scope Up< U2-3, preferably voltage magnitude scope Up< U2-3 <2Up.
5. the multilayer clearance-type lightning protection device indicating circuit of stating according to claim 1, is characterized in that: described diode D1-DN is made up of at least one diode, the reverse withstand voltage summation of all diode D1-DN need be higher than the voltage breakdown Up in each gap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410201437.1A CN103969529A (en) | 2014-05-14 | 2014-05-14 | Multi-layer gap type lightning arrester indicating circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410201437.1A CN103969529A (en) | 2014-05-14 | 2014-05-14 | Multi-layer gap type lightning arrester indicating circuit |
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| CN103969529A true CN103969529A (en) | 2014-08-06 |
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| CN201410201437.1A Pending CN103969529A (en) | 2014-05-14 | 2014-05-14 | Multi-layer gap type lightning arrester indicating circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565850A (en) * | 2018-05-21 | 2018-09-21 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
| CN108808644A (en) * | 2018-06-28 | 2018-11-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN117929902A (en) * | 2024-03-14 | 2024-04-26 | 浙江泰科天唯电气有限公司 | Composite surge protector detection method, surge protector and storage medium |
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| US20140085764A1 (en) * | 2012-09-26 | 2014-03-27 | Hubbell Incorporated | Series R-C Graded Gap Assembly For MOV Arrester |
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| CN104638629A (en) * | 2015-02-13 | 2015-05-20 | 菲尼克斯亚太电气（南京）有限公司 | Partial voltage triggered symmetric type overvoltage lightning protection circuit |
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2014
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| US4338648A (en) * | 1980-11-10 | 1982-07-06 | General Electric Company | Gapless discharge counter for lightning arresters |
| CN2243728Y (en) * | 1995-11-17 | 1996-12-25 | 李长益 | Low-voltage distribution module for prevention of lightning shock |
| CN2705915Y (en) * | 2004-04-08 | 2005-06-22 | 烟台玛斯特防雷技术有限公司 | Lightning protective socket |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565850A (en) * | 2018-05-21 | 2018-09-21 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108565850B (en) * | 2018-05-21 | 2019-08-13 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108808644A (en) * | 2018-06-28 | 2018-11-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN108808644B (en) * | 2018-06-28 | 2019-08-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
| CN117929902A (en) * | 2024-03-14 | 2024-04-26 | 浙江泰科天唯电气有限公司 | Composite surge protector detection method, surge protector and storage medium |
| CN117929902B (en) * | 2024-03-14 | 2024-05-24 | 浙江泰科天唯电气有限公司 | Composite surge protector detection method, surge protector and storage medium |
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Application publication date: 20140806 |
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