CN109245077A - Integrated back-up protection lightning protection for power supply - Google Patents
Integrated back-up protection lightning protection for power supply Download PDFInfo
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- CN109245077A CN109245077A CN201811080020.9A CN201811080020A CN109245077A CN 109245077 A CN109245077 A CN 109245077A CN 201811080020 A CN201811080020 A CN 201811080020A CN 109245077 A CN109245077 A CN 109245077A
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- fuse
- setting valve
- circuit setting
- flow fuse
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- 230000004224 protection Effects 0.000 title claims abstract description 140
- 230000001012 protector Effects 0.000 claims abstract description 33
- 230000011664 signaling Effects 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000006004 Quartz sand Substances 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000009977 dual effect Effects 0.000 abstract description 8
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 208000025274 Lightning injury Diseases 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000032750 Device leakage Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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- Emergency Protection Circuit Devices (AREA)
- Fuses (AREA)
Abstract
The invention discloses integrated back-up protection lightning protection for power supply, one end that back-up protection power input is separately connected inductance vector module crosses one end of flow fuse with high short-circuit setting valve, the other end of inductance vector module connects one end that low short-circuit setting valve crosses flow fuse, the both ends that low short circuit setting valve crosses flow fuse are parallel with the high frequency capacitor with capacitive filtering function, the side that low short circuit setting valve crosses flow fuse is equipped with the remote signalling switch simultaneously acted on, the other end that high short circuit setting valve crosses flow fuse is connect with one end of discharge-type switching tube, the other end of the other end and discharge-type switching tube that low short circuit setting valve crosses flow fuse is separately connected one end of surge protector, the other end of surge protector is connect with ground terminal.The present invention overcomes the drawback of fuse surge strike resistance difference, integrates dual overcurrent protection setting valve and there are the fuse target formula back-up protection technology modules of fusing instruction, realize integrated SPD product.
Description
Technical field
The present invention relates to integrated back-up protection lightning protection for power supply, belong to thunder resisting equipment technical field.
Background technique
Lightning protection for power supply be it is a kind of apply in low-voltage distribution system of the voltage less than 1000 volts limit instantaneous overvoltage and
It releases the low-voltage electrical apparatus of surge current, also known as surge protector (SPD), is widely used in the confession of all trades and professions of national economy
In the power-supply device of distribution.By different designs need to be connected across power frequency supply it is alternate or over the ground between；And the wave among power grid
Come through voltage occur when, lightning surge electric current of releasing, make voltage protection level be limited to the resistance to voltage levels of insulation of electricity system with
Under, improve quality of power supply, protects the safe operation of electrical equipment.
It is easily serious in power grid due to the voltage-limiting surge protector that lightning protection for power supply is especially made of zinc oxide (MOV)
It splits under transient overvoltage TOV or in deterioration by surge impact moment and melts, perforates, make acute by the power frequency leakage current of SPD
Increase, so that SPD continues power frequency overcurrent and failure and generates heat, according to statistics and testing and verification: when SPD continues through 3 amperes of power currents
The several seconds is only needed, has been enough that SPD is caused to burn, initiation lightning protection device fires when serious, short circuit is tripped, and electrical equipment is burnt secondary
Accident.Cause serious economic loss.And the transient overvoltage TOV of power grid occurs and the deterioration process of SPD is random and can not
It predicts, necessarily has security risk in the operation that such lightning protection for power supply is applied in low-voltage distribution system, must prevent.
The generation of such accident in order to prevent is ensured in the safe and reliable fortune for implementing lightning protection In the distribution system of low voltage
Row.Recommend to apply overcurrent protection disconnector, (such as breaker and fusing in IEC 61643-12 and IEC60364-5-534 standard
Device) and SPD be used in series the standby overcurrent protective device as SPD, when short trouble occurs for SPD in time by it from distribution
It detaches to avoid accident in system.In " the 12nd part of low pressure surge protector: low pressure IEC 61643.12-2008
Surge protector-selection of distribution system and using priciple " in give base in annex P " reserve short-circuit protection and surge be resistant to "
In the suggestion of the i2t fuse calculated and SPD cooperation, present lightning protection for power supply target formula back-up protection New technical use also supplements solution
Determined dual diverging overcurrent protection index SPD back-up protection cooperation problem, with application target formula current monitoring shunt protect
Shield new technology, which realizes, improves reliable lightning protection for power supply back-up protection.The target formula overcurrent protection of the omnibearing protection function is prevented
Thunder device back-up protection technology has the drawback of fuse surge strike resistance difference.
Summary of the invention
The technical problem to be solved by the present invention is solving the problems, such as that fuse surge strike resistance is poor.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide integrated back-up protection power lightning protections
Device, which is characterized in that its circuit structure includes back-up protection power input, and back-up protection power input is separately connected inductance
One end of vector module and high short-circuit setting valve cross one end of flow fuse, and it is whole that the other end of inductance vector module connects low short circuit
Definite value crosses one end of flow fuse, and the both ends that low short circuit setting valve crosses flow fuse are parallel with the high frequency with capacitive filtering function
Capacitor, the side that low short circuit setting valve crosses flow fuse are equipped with the remote signalling switch simultaneously acted on, high short circuit setting valve mistake
The other end of flow fuse is connect with one end of discharge-type switching tube, and low short circuit setting valve crosses the other end and the electric discharge of flow fuse
The other end of type switching tube is separately connected one end of surge protector, and the other end of surge protector is connect with ground terminal.
Preferably, the low short-circuit setting valve crosses the fuse that flow fuse is low adjusting ampere grade；High short circuit adjusting
It was worth the thunder and lightning flow fuse that flow fuse is high-set setting ampere grade.
Preferably, the end PI of the low short-circuit setting valve crosses flow fuse the other end and surge protector connects；Even
The end PI of one end and surge protector for connecing discharge-type switching tube connects；The end PII of surge protector is connect with ground terminal.
Preferably, ground terminal connection power supply N-terminal or the end safety ground PE.
Preferably, it includes fusible link tube body that the low short-circuit setting valve, which crosses flow fuse, is set at the top of fusible link tube body
There is conductive top cap, the bottom of fusible link tube body is equipped with conductive bottom cap, and the intracorporal middle position of cartridge fuse is fixed with an energy storage
Spring is equipped with the fusing instruction pogo stick that can move up and down above energy-stored spring, and fusing instruction pogo stick is set in cartridge fuse body,
The top of fusing instruction pogo stick is fixed in conductive top cap, and the bottom of fusing instruction pogo stick and one end of fuse connect, fuse
The other end passes through energy-stored spring and connect with conductive bottom cap.
Preferably, arc extinguishing quartz sand is inoculated in the cartridge fuse body, arc extinguishing quartz sand is set to below energy-stored spring.
Preferably, it includes sleeve that the short-circuit setting valve of the described height, which crosses flow fuse, the both ends of sleeve be respectively equipped with upper cover and
Lower cover, is connected by multiply section alloy fuse between upper cover and lower cover, and sleeve is sheathed on the outside of multiply section alloy fuse.
Preferably, arc extinguishing quartz sand is inoculated in the sleeve.
Integrated back-up protection lightning protection for power supply, which is characterized in that its hardware configuration includes back-up protection power input,
Back-up protection power input is connected to discharge-type switching tube through the first copper bar, then the height short circuit through the second copper bar and lower section is adjusted
It was worth flow fuse connection, then is connected to the end PI on surge protector by third copper bar；Back-up protection power input is another
Flow fuse is crossed with low short-circuit setting valve by line all the way to connect, and is then connect with inductance vector module, inductance vector module
It is in parallel with high frequency capacitor, then the end PI on surge protector is accessed by third copper bar；It is defeated by the end PII of surge protector again
Out, ground terminal is connected to through copper bar；The side that low short circuit setting valve crosses flow fuse is switched equipped with remote signalling, and remote signalling switch connection is distant
Letter control conversion line plate, remote signalling control conversion line plate and connect remote signalling output port.
The present invention overcomes the drawbacks of fuse surge strike resistance difference, integrate dual overcurrent protection setting valve and have
Fuse the fuse target formula back-up protection technology modules indicated, is combined into have with lightning protection surge protection and improves back-up protection
Independent lightning protection component realizes integrated SPD product.
The present invention is not required to outside and is equipped with SPD reserve protection again, and the electric current for efficiently solving dual diverging is protected
Finger shield target SPD back-up protection cooperates problem, has reached IEC 61643-12, IEC6034-5-534 and GB-50057-94
In 2000 editions etc. anti-thunder surge application standards, the requirement of basic function and back-up protection to surge protector (SPD)；It realizes
Anti- surge Full Featured power lightning protection surge device new product with safety backup protection disconnector function up to standard, perfect.
The present invention retains the electrical structure mode of conventional lightning protection device application, by having using the molten of target formula parameter control technology
The lightning protection device pedestal of disconnected device group is formed with full C grade series MOV block combiner, is facilitated to plug and is changed MOV module, can synthesize from
The integrated surge protector with fuse back-up protection of C10~C60 various specifications grade.
Structure of the invention is compact, simple installation, can directly replace various model SPDs of the original without reserve protection, and save
The configuration of external back-up protection disconnector has been omited, and the C such as 1P, 3P, 4P, 3P+1P grades of surge lightning protection can be advantageously integrated on demand and protected
Protect device group.It can succeed and be applied in the various lightning protection occasions of low-voltage power system.
Since lightning protection device of the invention is without external back-up protection disconnector, the cable of a large amount of alternate device interface is omitted
A large amount of installation space and installation cost have not only been saved in wiring, while electrical resistance is greatly reduced in brief easily line,
So that residual voltage in surge heavy current impact is down to extremely low, voltage protection level is significantly reduced, power supply system is improved
Safe operation index.
MOV deterioration failure alarm built in the present invention and the dual remote signalling switch of fuse blows alarm and field failure refer to
Show that there is fault remote to monitor remote signaling function.
The dismountable structure of fuse module of the invention, can after a failure, and in-situ processing is safer, replaces device more just
Victory is resumed operation more rapidly.
Detailed description of the invention
Fig. 1 is the circuit diagram of integrated back-up protection lightning protection for power supply；
Fig. 2 is the equivalent schematic of inductance vector module；
Fig. 3 a is the structural schematic diagram that low short-circuit setting valve crosses flow fuse；
Fig. 3 b is the reset condition figure that low short-circuit setting valve crosses flow fuse；
Fig. 3 c is the blown state figure that low short-circuit setting valve crosses flow fuse；
Fig. 4 a is the structural schematic diagram that high short-circuit setting valve crosses flow fuse；
Fig. 4 b is the schematic diagram of internal structure of Fig. 4 a；
Fig. 5 is the structural schematic diagram of integrated back-up protection lightning protection for power supply.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
The present invention is integrated back-up protection lightning protection for power supply, as shown in Figure 1, its circuit structure includes back-up protection power supply
Input terminal 1, circuit structure include back-up protection power input 1, and back-up protection power input 1 is separately connected inductance vector mould
One end of block 2 and high short-circuit setting valve cross one end of flow fuse 3, the low short circuit adjusting of the other end connection of inductance vector module 2
It was worth one end of flow fuse 4, the both ends that low short circuit setting valve crosses flow fuse 4 are parallel with the high frequency with capacitive filtering function
Capacitor 7, the side that low short circuit setting valve crosses flow fuse 4 are equipped with the remote signalling switch 5 simultaneously acted on, high short circuit setting valve
The other end for crossing flow fuse 3 is connect with one end of discharge-type switching tube 6, and low short circuit setting valve crosses the other end of flow fuse 4
One end of surge protector 8, the other end and ground terminal 9 of surge protector 8 are separately connected with the other end of discharge-type switching tube 6
Connection.
Back-up protection power input 1 is divided into two-way according to input current: power current all the way, with inductance vector module
2 can stop surge current, pass through power current；It allows the low short-circuit setting valve of power current access to cross flow fuse 4, executes overcurrent and protect
Shield；Low short circuit setting valve, which crosses flow fuse 4 again, has fusing instruction pogo stick, acts on simultaneously with remote signalling switch 5, executes remote signalling report
It is alert；For prevent part shunt lightning surge cause to malfunction, and configure have capacitive filtering function high frequency capacitor 7 with it is low
It is in parallel that short-circuit setting valve crosses flow fuse 4；It is then connected to the end PI of surge protector 8, finally by the end PII of surge protector 8
Output.Another way surge current crosses flow fuse 3 via high short-circuit setting valve, concatenates, be then connected to discharge-type switching tube 6
The end PI of surge protector 8 is finally exported by the end PII of surge protector 8.Two-way back-up protection current channel converges output and connects
Connect ground terminal 9.The ground terminal 9 of lightning protection for power supply connects power supply N-terminal or the end safety ground PE by Specification Design.
When present invention realization ensures normal lightning protection, the safe aerial drainage of lightning surge electric current passes through；Occurring, power frequency is high and low
It cuts off the power in time when value short circuit current failure, prevents blast accident, there is composition integrated fuse target formula standby to protect
Power lightning protection surge protector (SPD) product important document of shield.
As shown in Fig. 2, being the equivalent schematic of inductance vector module 2, its main feature is that being designed according to the characteristic of thunder-strike current
The high Q inductor of the low distributed capacitance parameter of configuration realizes that lightning current blocks.
It is the fuse indicated with dual fusing that low short-circuit setting valve of the invention, which crosses flow fuse 4, specified 3A fusing
The protection feature of electric current；And have fusing instruction pogo stick and remote signalling switch shift lever 48, complete integrated fuse back-up protection power supply
Lightning protection device fusing scene and fault remote warning function.
As shown in Fig. 3 a- Fig. 3 c, the working principle that low short circuit setting valve crosses flow fuse 4 is as follows:
Low short circuit setting valve is crossed flow fuse 4 and is clamped in fixed clamping frame, and is placed in integrated lightning protection device shell
It is interior.Low short circuit setting valve is crossed flow fuse 4 and is referred to by fusible link tube body 41, fuse 44, conductive top cap 43, conductive bottom cap 42 and fusing
Show that pogo stick 47 forms；It includes fusible link tube body 41 that low short circuit setting valve, which crosses flow fuse 4, and the top of fusible link tube body 41, which is equipped with, leads
Electric top cap 43, the bottom of fusible link tube body 41 are equipped with conductive bottom cap 42, and the middle position in fusible link tube body 41 is fixed with one
Energy-stored spring 46, energy-stored spring 46 are equipped with the fusing instruction pogo stick 47 that can move up and down above, and fusing instruction pogo stick 47 is set to
In fusible link tube body 41, fusing instruction pogo stick 47 top be fixed in conductive top cap 43, fusing instruction pogo stick 47 bottom with
One end of fuse 44 connects, and the other end of fuse 44 passes through energy-stored spring 46 and connect with conductive bottom cap 42.In fusible link tube body 41
It is inoculated with arc extinguishing quartz sand 45, arc extinguishing quartz sand 45 is set to 46 lower section of energy-stored spring.
Low short circuit setting valve crosses flow fuse 4 normally when not being blown, after fusing instruction pogo stick 47 is drawn by fuse 44
It is pressed on energy-stored spring 46, fusing instruction pogo stick 47 is fixed in conductive top cap 43.When low short-circuit setting valve is crossing flow fuse 4 just
When Chang Wei is blown, fusing instruction pogo stick 47 is fixed on inside conductive top cap 43 by fuse 44, attonity, also, conducting top
Cap 43, fuse 44 and conductive bottom cap 42 form the galvanic circle that low short-circuit setting valve crosses flow fuse 4.It fuses when fuse 44 overloads
When, fusing instruction pogo stick 47 is released, and cuts off galvanic circle, and fusing instruction pogo stick 47 acts, stretches out outside lightning protection device shell W, be
Malfunction coefficient, while touching remote signalling switch and issuing failure remote signalling number.
As shown in Fig. 4 a, Fig. 4 b, it includes sleeve 32 that the short-circuit setting valve of height in the present invention, which crosses flow fuse 3, sleeve 32
Both ends are respectively equipped with upper cover 31 and lower cover 33, are connected between upper cover 31 and lower cover 33 by multiply section alloy fuse 34, sleeve
32 are sheathed on the outside of multiply section alloy fuse 34.Arc extinguishing quartz sand is inoculated in sleeve 32.
High short circuit setting valve crosses flow fuse 3 and uses multiply section alloy fuse 34, is imitated using the collection skin of high frequency lightning current
It answers, can ensure that lightning surge dash current safety.
Low short circuit setting valve crosses the fuse that flow fuse 4 is low adjusting ampere grade；High short circuit setting valve crosses flow fuse 3
For the thunder and lightning flow fuse of high-set setting ampere grade.
Present invention application vector module is selected to cooperate by lightning protection device MOV power frequency failure leakage current for reserve protection and be protected
The target of shield carries out the control of low value short circuit setting valve with the dedicated overcurrent fuse function module of small ampere grade；Another extraordinary electric discharge
Switch bypass in lightning surge crosses flow fuse by high level short circuit setting valve and carries out the other class protection of big short circuit current.In power supply
The back-up protection electric appliance internal applications autocracy vector diverter module of lightning protection device, it would be possible to by lightning surge electric current and power frequency electric
Flow point is two paths, is monitored respectively, realizes that the power frequency overcurrent for SPD precisely, is quickly protected, and effectively prevent lightning protection device to fire
The generation of quick-fried accident.
The present invention is by the fuse device Combination Design to lightning protection device pedestal of target formula parameter control technology, with full C grades of series
It is whole that MOV plug-in module is composed one.The sufficiently flow direction interference of the huge surge current and power frequency continued flow of tradeoff lightning stroke,
The strict demand of the insulation distance of the discharging gap and high pressure of safety, well-designed, reasonable imposition layout remedies a drawback, reaches
Compact-sized, simple installation, safe and reliable integrated lightning protection device infrastructure product.
As shown in figure 5, back-up protection power input 1 of the invention is connected to discharge-type switching tube 6 through the first copper bar a,
The short-circuit setting valve of height again through the second copper bar b and lower section is crossed flow fuse 3 and is connected, then is connected to surge by third copper bar c and protects
Protect the end PI on device 8.1 another way of back-up protection power input is crossed flow fuse 4 with low short-circuit setting valve by line and is connect,
Then it is connect with inductance vector module 2, inductance vector module 2 is in parallel with high frequency capacitor 7, then passes through third copper bar c access electricity
The end PI on surge protector 8.It is exported again by the end PII of surge protector 8, is connected to ground terminal 9 (PE) through copper bar.Low short circuit is whole
The side that definite value crosses flow fuse 4 is equipped with remote signalling switch 5, and remote signalling switch 5 connects remote signalling and controls conversion line plate 10, remote signalling control
Conversion line plate 10 connects remote signalling output port 11, and remote signalling switch 5, remote signalling control conversion line plate 10, remote signalling output port 11
And fusing instruction pogo stick 47 collectively forms dual fusing instruction warning function device.
The present invention is integrated de- by the fuse back-up protection of the amplitude-frequency difference function of lightning protection device leakage current with screening
From device.It is itself to have using power frequency fault current as the target of target, shielding lightning surge impacts pulse high current of releasing, and rapidly may be used
By eliminating hidden danger in SPD operation, the safety of low-voltage power supply system is ensured, anti-lightning strike, Anti-surging prevents SPD itself from firing comprehensively
The arms of back-up protection technology and there is fusing to deteriorate the lightning protection device that dual finger failure is shown.
The leakage current that present invention application lightning stroke flows through lightning protection for power supply flows through the failure of lightning protection device with power grid power frequency supply
The difference characteristic of power frequency continued flow quantifies identification, and setting shunt module combines, and realizes the back-up protection electric current of lightning protection for power supply
The standard of the double standards testing conditions of tripping.It is internal to be integrated in lightning protection device itself, has and screens through lightning protection device leakage current
Amplitude-frequency difference function, the method for separating lightning surge electric current and the afterflow of power frequency failure, accurate implementation otherness overcurrent protection mould
Block technology.
The present invention is to ensure that lightning protection for power supply, from Wear mechanism basis, has under power frequency fault current and cuts off protection
Fault current maximum power current is the response condition for being set as being set as when 3 amperes, maximum limit SPD back-up protection in three to five seconds
Integrated modular lightning protection surge protection.
The present invention relates to voltages to protect application field less than 1000 coucher frequency power lightning protection devices, and in particular to a kind of integration is anti-
The MOV power frequency failure afterflow of thunder device is to protect the SPD back-up protection of target, the one that back-up protection is carried out with fuse of exploitation
Change lightning protection for power supply technology, which is integrated into target formula overcurrent protection fuse composite module and power supply MOV lightning protector module
The lightning protection surge protection part of one realizes and itself has the novel of accurate perfect, reliable and secure SPD back-up protection function
Lightning protection for power supply product technology.
The present invention is realized in one SPD reserve protection using double fuse as the special device of overcurrent protection
Realize the function of the overcurrent protection to two kinds of magnitudes of current that differ greatly.Guarantee to similar by power supply transien overvoltage, SPD
Deterioration etc. causes the defencive function for implementing fusing in time, disengaging power grid when power frequency failure continues small ampere grade overcurrent, and can be
Normality is impacted under big value kiloampere grade electric current by lightning stroke not to be malfunctioned, and avoids that fusing separation occurs.
Present invention application vector module, which is pressed, carries out branch control by the different of lightning protection device MOV electric current.With low short circuit adjusting
Value flow fuse 4 the small ampere grade leakage current of power frequency failure is managed；Separately flow fuse 3 is crossed with high short-circuit setting valve to carry out
The other class protection of the big short circuit current of lightning surge.Under conditions of breaching the greatest differences in thunder-strike current and power frequency failure afterflow
Realize the problem of the accurate protective equipment of SPD standby.
Claims (9)
1. integrated back-up protection lightning protection for power supply, which is characterized in that its circuit structure includes back-up protection power input
(1), back-up protection power input (1) is separately connected one end of inductance vector module (2) and high short-circuit setting valve overcurrent fuses
One end of device (3), the low short-circuit setting valve of the other end connection of inductance vector module (2) cross one end of flow fuse (4), low short circuit
The both ends that setting valve crosses flow fuse (4) are parallel with the high frequency capacitor (7) with capacitive filtering function, low short circuit setting valve mistake
The side of flow fuse (4) is equipped with the remote signalling switch (5) simultaneously acted on, and high short circuit setting valve crosses the another of flow fuse (3)
One end is connect with the one end of discharge-type switching tube (6), and low short circuit setting valve crosses the other end of flow fuse (4) and discharge-type switchs
The other end of pipe (6) is separately connected one end of surge protector (8), and the other end of surge protector (8) and ground terminal (9) are even
It connects.
2. integration back-up protection lightning protection for power supply as described in claim 1, which is characterized in that the low short-circuit setting valve
Cross the fuse that flow fuse (4) are low adjusting ampere grade；It is high-set setting ampere grade that high short circuit setting valve, which crosses flow fuse (3),
Thunder and lightning flow fuse.
3. integration back-up protection lightning protection for power supply as described in claim 1, which is characterized in that the low short-circuit setting valve
The other end for crossing flow fuse (4) is connect with the end PI of surge protector (8)；Connect one end and the electricity of discharge-type switching tube (6)
The end PI of surge protector (8) connects；The end PII of surge protector (8) is connect with ground terminal (9).
4. integration back-up protection lightning protection for power supply as claimed in claim 1 or 3, which is characterized in that the ground terminal (9)
Connect power supply N-terminal or the end safety ground PE.
5. integration back-up protection lightning protection for power supply as described in claim 1, which is characterized in that the low short-circuit setting valve
Crossing flow fuse (4) includes fusible link tube body (41), and the top of fusible link tube body (41) is equipped with conductive top cap (43), cartridge fuse
The bottom of body (41) is equipped with conductive bottom cap (42), and the middle position in fusible link tube body (41) is fixed with an energy-stored spring
(46), energy-stored spring (46) is equipped with fusing instruction pogo stick (47) that can move up and down above, and fusing instruction pogo stick (47) is set to
In fusible link tube body (41), the top of fusing instruction pogo stick (47) is fixed on conductive top cap (43), fusing instruction pogo stick (47)
Bottom connect with one end of fuse (44), the other end of fuse (44) passes through energy-stored spring (46) and conductive bottom cap (42) even
It connects.
6. integration back-up protection lightning protection for power supply as claimed in claim 5, which is characterized in that the fusible link tube body
(41) it is inoculated with arc extinguishing quartz sand (45) in, arc extinguishing quartz sand (45) is set to below energy-stored spring (46).
7. integration back-up protection lightning protection for power supply as described in claim 1, which is characterized in that the short-circuit setting valve of the height
Crossing flow fuse (3) includes sleeve (32), and the both ends of sleeve (32) are respectively equipped with upper cover (31) and lower cover (33), upper cover (31) and
It is connected between lower cover (33) by multiply section alloy fuse (34), sleeve (32) is sheathed on multiply section alloy fuse (34)
Outside.
8. integration back-up protection lightning protection for power supply as claimed in claim 7, which is characterized in that filled in the sleeve (32)
There is arc extinguishing quartz sand.
9. integration back-up protection lightning protection for power supply as described in claim 1, which is characterized in that its hardware configuration includes standby
Protection power source input terminal (1), back-up protection power input (1) are connected to discharge-type switching tube (6) through the first copper bar (a), then
Flow fuse (3) is crossed with the short-circuit setting valve of the height of lower section through the second copper bar (b) to connect, then electricity is connected to by third copper bar (c)
The end PI on surge protector (8)；Back-up protection power input (1) another way fuses by line and low short-circuit setting valve overcurrent
Device (4) connection, then connect with inductance vector module (2), inductance vector module (2) is in parallel with high frequency capacitor (7), then passes through
Third copper bar (c) accesses the end PI on surge protector (8)；It is exported by the end PII of surge protector (8), is connected through copper bar again
To ground terminal (9)；The side that low short circuit setting valve crosses flow fuse (4) is equipped with remote signalling switch (5), and it is distant that remote signalling switchs (5) connection
Letter control conversion line plate (10), remote signalling control conversion line plate (10) connection remote signalling output port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811080020.9A CN109245077A (en) | 2018-09-17 | 2018-09-17 | Integrated back-up protection lightning protection for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811080020.9A CN109245077A (en) | 2018-09-17 | 2018-09-17 | Integrated back-up protection lightning protection for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109245077A true CN109245077A (en) | 2019-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811080020.9A Pending CN109245077A (en) | 2018-09-17 | 2018-09-17 | Integrated back-up protection lightning protection for power supply |
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| Country | Link |
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| CN (1) | CN109245077A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039041A (en) * | 2020-07-16 | 2020-12-04 | 安克创新科技股份有限公司 | Surge protection circuit, lightning protection device and electronic equipment |
| CN112803367A (en) * | 2021-03-19 | 2021-05-14 | 四川中光防雷科技股份有限公司 | Failure breaking assembly of signal surge protector |
| CN113824104A (en) * | 2021-10-20 | 2021-12-21 | 上海电科臻和智能科技有限公司 | Intelligent backup protection integrated surge protection device |
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| US5072327A (en) * | 1990-01-24 | 1991-12-10 | At&T Bell Laboratories | Electronic protection device for use with a fuse mount |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| JP2016059140A (en) * | 2014-09-08 | 2016-04-21 | 日本電信電話株式会社 | Surge voltage protection circuit |
| CN106129992A (en) * | 2016-08-31 | 2016-11-16 | 上海电科臻和智能科技有限公司 | A kind of lightning protection for power supply target formula back-up protection circuit |
| CN209029918U (en) * | 2018-09-17 | 2019-06-25 | 上海电科臻和智能科技有限公司 | A kind of integration back-up protection lightning protection for power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5072327A (en) * | 1990-01-24 | 1991-12-10 | At&T Bell Laboratories | Electronic protection device for use with a fuse mount |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| JP2016059140A (en) * | 2014-09-08 | 2016-04-21 | 日本電信電話株式会社 | Surge voltage protection circuit |
| CN106129992A (en) * | 2016-08-31 | 2016-11-16 | 上海电科臻和智能科技有限公司 | A kind of lightning protection for power supply target formula back-up protection circuit |
| CN209029918U (en) * | 2018-09-17 | 2019-06-25 | 上海电科臻和智能科技有限公司 | A kind of integration back-up protection lightning protection for power supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039041A (en) * | 2020-07-16 | 2020-12-04 | 安克创新科技股份有限公司 | Surge protection circuit, lightning protection device and electronic equipment |
| US11777308B2 (en) | 2020-07-16 | 2023-10-03 | Anker Innovations Technology Co., Ltd. | Surge protection circuit, lightning protector and electronic device |
| CN112803367A (en) * | 2021-03-19 | 2021-05-14 | 四川中光防雷科技股份有限公司 | Failure breaking assembly of signal surge protector |
| CN113824104A (en) * | 2021-10-20 | 2021-12-21 | 上海电科臻和智能科技有限公司 | Intelligent backup protection integrated surge protection device |
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