CN105591376B - B+C type surge protective device of three-phase power supply - Google Patents
B+C type surge protective device of three-phase power supply Download PDFInfo
- Publication number
- CN105591376B CN105591376B CN201610048784.4A CN201610048784A CN105591376B CN 105591376 B CN105591376 B CN 105591376B CN 201610048784 A CN201610048784 A CN 201610048784A CN 105591376 B CN105591376 B CN 105591376B
- Authority
- CN
- China
- Prior art keywords
- remote signalling
- discharge tube
- connection sheet
- power supply
- protective device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- H02H9/044—Physical layout, materials not provided for elsewhere
-
- 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
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of B+C types surge protective device of three-phase power supply；It is characterized in that：Product machine product includes 4 modules；Each module includes：The upper and lower shell of module, plastic, transparent window, shell fixing screws A, B, remote signalling combination circuit plate, low temperature point connection sheet, shell fragment, pressing line frame screw A, B, gas put connection sheet, multistage non-follow current gas discharge tube, band thermal tripping piezo-resistance A, B, remote signalling terminal, three-core conductor；The invention belongs to be to aim to protect secondary network to design from the invasion and attack of direct lightning strike and induced lightening without afterflow high-performance B+C type surge protective device of three-phase power supply.Product is widely used in power-supply system lightning protection in the engineerings such as mobile base station lightning protection, microwave station lightning protection, telecommunications room lightning protection, industrial factories and miness lightning protection; conventional B, C two-stage Surge Protector and decoupling device can be substituted in middle small room, a Surge Protector can play the protective action of two-stage Surge Protector.
Description
Technical field
The present invention relates to a kind of Surge Protector, especially a kind of B+C types surge protective device of three-phase power supply.
Background technology
GB50343-2012《Building electronic information system shocking preventing technology specification》In, the 5.4.3 articles regulation is " when voltage is opened
Pass type Surge Protector to the line length between votage limit type Surge Protector is less than between 10m, votage limit type Surge Protector
When line length is less than 5m, decoupling device device should be installed additional between two-stage Surge Protector." and during actual installation, it is past
Toward because installing space problem, the mounting distance requirement between two-stage can not be met.When this, user using B+C types as combined
The Surge Protector of type just can solve the problem that the problem of mounting distance between two-stage.B+C combination type surge protectors, C levels are universal all
Using votage limit type, we divide according to the type of B level Surge Protectors.It is divided into votage limit type and switching mode, both distinguish again
Be divided into band decoupling type with without decoupling type, as shown in Figure 1；
It is the impulse sparkover voltage by reducing B level switching-type devices without decoupling switches B+C types combination Surge Protector
To realize, B levels switching-type device and C level votage limit types device use parallel way.Use adds an electronic ignition more at present
Device reduces the surge voltage of switching-type device, and producing an electric spark during switching device both end voltage rises makees
For conductive channel, conducting of the switching device under low surge voltage is realized.In general design is when there is electronic ignition device, is put
Piezoelectric voltage is in 1KV or so, and during without electronic ignition device, and discharge voltage is in more than 3KV.Combined without decoupling switches type B+C
Surge Protector reduces impulse sparkover voltage by using electronic ignition device, realizes B levels and C level surge protectors
Directly it is installed in parallel, eliminates the limitation of connecting wire length and the installation of decoupler between level, also eliminate by installation decoupler
The limitation of caused operating current, saves installing space, optimizes wire connection, simplifies mounting technique.In the market,
The combined lightning-protected product species of B+C of each manufacturer production is various, but its general principle belongs to four type above, wherein
With decoupling votage limit type and apply the most extensive without decoupling switches type.This product is also to belong to no decoupling device switching mode B+C, is adopted
The surge voltage of switching-type device is reduced with particular form.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, provides a kind of B+C types three phase mains surge protection herein
Device；Category is to aim to protect secondary network from direct lightning strike and induced lightening without afterflow high-performance B+C type surge protective device of three-phase power supply
Invasion and attack and design.Product is widely used in mobile base station lightning protection, microwave station lightning protection, telecommunications room lightning protection, industrial factory
Power-supply system lightning protection in the engineerings such as ore deposit lightning protection, can substitute in middle small room conventional B, C two-stage Surge Protector and
Decoupling device, a Surge Protector can play the protective action of two-stage Surge Protector.Small product size is small, not by sky during installation
Between limit, suitable for the less place in space in building.
The present invention is achieved in that a kind of B+C types surge protective device of three-phase power supply of construction, it is characterised in that：Product is whole
Machine product includes 4 modules；Each module includes：The upper and lower shell of module, plastic, transparent window, shell fixing screws A, B, remote signalling
Combination circuit plate, low temperature point connection sheet, shell fragment, pressing line frame screw A, B, gas put connection sheet, multistage non-follow current gas discharge tube, band
Thermal tripping piezo-resistance A, B, remote signalling terminal, three-core conductor；
The upper and lower shell of module, its material are environmentally friendly PBT material, are shaped through mold injection, have high insulating property and
V-0 fire-protection ratings；
The plastic, transparent window, it is the Indication of Losing Efficacy window of this product, its material is environmentally friendly PBT material, through mold injection
Shaping, has high insulating property and V-0 fire-protection ratings；Shell fixing screws A, B, its material are stainless steel material；
The remote signalling combination circuit plate, this circuit board form normally opened, normally-closed contact by 3 microswitch series and parallels；
The low temperature point connection sheet, material are the tin plating composition of environmentally friendly red copper, handle and shape through mould punching, are that failure is threaded off
The part of mechanism；
The shell fragment, material are the tin plating composition of environmentally friendly tin-phosphor bronze, through mould punching handle shape, material phosphorus content compared with
Height, its fatigue resistance is higher, and is formed by special thermal treatment, and elasticity and wearability are preferable, is the group of failure tripping mechanism
Into part；Described pressing line frame screw A, B, are the crimping screws of product wiring, and its material is stainless steel material；
The gas puts connection sheet, and material is the tin plating composition of environmentally friendly red copper, handles and shapes through mould punching；
Multistage non-follow current gas discharge tube, it is the core component of product, is the main body device of lightning protection；
Wherein, the fixation of the upper and lower shell of module is realized by shell fixing screws A, B；
Multistage non-follow current gas discharge tube is connected with low temperature point connection sheet, and low temperature point connection sheet passes through low temperature scolding tin with shell fragment
Wire bond is connect, and shell fragment is fixed by pressing line frame screw A；
Wherein, piezo-resistance A is welded on multistage non-follow current gas discharge tube and put without afterflow to coordinate gas-discharge tube to start
A, B both ends of fulgurite；Piezo-resistance B is welded on multistage non-follow current gas discharge tube C, D without continuous current discharge electricity pipe to reduce residual voltage
Both ends；
Remote signalling terminal, it is connected by wire with remote signalling combination circuit plate, when the microswitch shape of remote signalling combination circuit plate
When state changes, it is delivered to by wire in remote signalling terminal；Three-core conductor, it is connected to remote signalling combination circuit plate and remote signalling terminal；Institute
State gas and put connection sheet and fixed by pressing line frame screw B.
According to B+C types surge protective device of three-phase power supply of the present invention, it is characterised in that：The method of operation is as follows；Work as multistage
There is excessively stream, overheat in the case of strong lightning current in non-follow current gas discharge tube, and heat transfer gives low temperature point connection sheet, and low temperature point connects
Contact pin is connect by low temperature scolding tin wire bond with shell fragment and formed, and multistage non-follow current gas discharge tube heating causes solder joint to melt, shell fragment
Metal clips flicks, and shell fragment crimps the microswitch of remote signalling combination circuit plate, passes through wire transmission after microswitch state change
In remote signalling terminal；Multistage non-follow current gas discharge tube heating causes solder joint heat to depart from, and gas-discharge tube departs from power network, so as to avoid
Product catching fire.
The advantage of the invention is that：B+C types surge protective device of three-phase power supply category of the present invention is without afterflow high-performance B+C types
Surge protective device of three-phase power supply, it is to aim to protect secondary network to design from the invasion and attack of direct lightning strike and induced lightening.Product is wide
It is general to be applied to power-supply system in the engineerings such as mobile base station lightning protection, microwave station lightning protection, telecommunications room lightning protection, industrial factories and miness lightning protection
Lightning protection, conventional B, C two-stage Surge Protector and decoupling device can be substituted in middle small room, a Surge Protector can
To play the protective action of two-stage Surge Protector.Small product size is small, is not limited by a space during installation, suitable for empty in building
Between less place.
Brief description of the drawings
Fig. 1 is B+C combination type surge protectors division schematic diagram
Fig. 2-3 is product design schematic diagram
Fig. 4 is single schematic appearance
Fig. 5 is Fig. 4 expanded schematic diagrams
Fig. 6 is Surge Protector schematic diagram
Fig. 7 is individual module protection circuit figure
Fig. 8 is that surge response curve is superimposed comparison diagram when single GDT is used respectively with five lamination GDT
Fig. 9-10 is stacking GDT peripheral cell figures
Wherein：Module 1, shell 2 in module, shell fixing screws A3, shell fixing screws B4, plastic, transparent window 5 are distant
Believe combination circuit plate 6, low temperature point connection sheet 7, pressing line frame screw A8, multistage non-follow current gas discharge tube 9, shell fragment 10, pressure-sensitive electricity
A11, piezo-resistance B12, pressing line frame screw B13 are hindered, gas puts connection sheet 14, metal pressing line frame A15, remote signalling terminal 16, under module
Shell 17, three-core conductor 18, metal pressing line frame B19.
Embodiment
Below in conjunction with accompanying drawing 1-10, the present invention is described in detail, and the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
The present invention provides a kind of B+C types surge protective device of three-phase power supply by improving, as Figure 1-10 shows, can be according to such as
Under type is practiced；Product machine product includes 4 modules 1；Each module 1 includes：Shell 2, module lower casing in module
17, plastic, transparent window 5, shell fixing screws A3, shell fixing screws B4, remote signalling combination circuit plate 6, low temperature point connection sheet 7, bullet
Piece 10, pressing line frame screw A8, pressing line frame screw B13, gas put connection sheet 14, multistage non-follow current gas discharge tube 9, band thermal tripping pressure
Quick resistance A11, piezo-resistance B12, remote signalling terminal 16, three-core conductor 18.
The upper and lower shell of module, its material are environmentally friendly PBT material, are shaped through mold injection, have high insulating property and
V-0 fire-protection ratings；
The plastic, transparent window 5, it is the Indication of Losing Efficacy window of this product, its material is environmentally friendly PBT material, through mold injection
Shaping, has high insulating property and V-0 fire-protection ratings；Shell fixing screws A, B, its material are stainless steel material；
The remote signalling combination circuit plate 6, this circuit board form normally opened, normally-closed contact by 3 microswitch series and parallels；
The low temperature point connection sheet 7, material are the tin plating composition of environmentally friendly red copper, handle and shape through mould punching, are that failure is de-
The part of buckle mechanism；
The shell fragment 10, material are the tin plating composition of environmentally friendly tin-phosphor bronze, through mould punching handle shape, material phosphorus content compared with
Height, its fatigue resistance is higher, and is formed by special thermal treatment, and elasticity and wearability are preferable, is the group of failure tripping mechanism
Into part；Described pressing line frame screw A, B, are the crimping screws of product wiring, and its material is stainless steel material；
The gas puts connection sheet 14, and material is the tin plating composition of environmentally friendly red copper, handles and shapes through mould punching；
Multistage non-follow current gas discharge tube 9, it is the core component of product, is the main body device of lightning protection；
Wherein, the fixation of the upper and lower shell of module is realized by shell fixing screws A, B；Multistage non-follow current gas discharge tube 9 with
Low temperature point connection sheet 7 is connected, and low temperature point connection sheet 7 is connect with shell fragment 10 by low temperature scolding tin wire bond, and shell fragment 10 passes through pressing line frame spiral shell
Nail A8 is fixed；
Wherein, piezo-resistance A11 is welded on multistage non-follow current gas discharge tube 9 without continuous to coordinate gas-discharge tube to start
Banish A, B both ends of fulgurite；Piezo-resistance B12 is welded on multistage non-follow current gas discharge tube 9 without continuous current discharge electricity to reduce residual voltage
C, D both ends of pipe；
Remote signalling terminal 16, it is connected by wire with remote signalling combination circuit plate 6, when the fine motion of remote signalling combination circuit plate 6 is opened
When off status changes, it is delivered to by wire in remote signalling terminal 16；Three-core conductor 18, it is connected to remote signalling combination circuit plate 6 and distant
Believe terminal 16；The gas is put connection sheet 14 and fixed by pressing line frame screw B13.
The method of operation is as follows；When excessively stream, overheat, heat occurs in the case of strong lightning current in multistage non-follow current gas discharge tube 9
Amount passes to low temperature point connection sheet 7, and low temperature point connection sheet 7 is connect with shell fragment 10 by low temperature scolding tin wire bond to be formed, and multistage is without afterflow
Gas-discharge tube heating causes solder joint to melt, and the metal clips of shell fragment 10 flicks, the fine motion of shell fragment crimping remote signalling combination circuit plate 6
Switch, transmitted after microswitch state change by wire in remote signalling terminal 16；The multistage heating of non-follow current gas discharge tube 9 causes
Solder joint heat departs from, and gas-discharge tube departs from power network, so as to avoid product catching fire.
B+C types surge protective device of three-phase power supply category of the present invention is without afterflow high-performance B+C type three phase mains surge protections
Device, it is to aim to protect secondary network to design from the invasion and attack of direct lightning strike and induced lightening.Product is widely used in mobile base station
Power-supply system lightning protection in the engineerings such as lightning protection, microwave station lightning protection, telecommunications room lightning protection, industrial factories and miness lightning protection, installed in medium and small
Conventional B, C two-stage Surge Protector and decoupling device can be substituted in computer room, a Surge Protector can play two-stage surge
The protective action of protector.Small product size is small, is not limited by a space during installation, suitable for the less place in space in building.
The present invention has following features, is specially：
（1）GDT has with the characteristics of maximum through-current capacity, being applied well in high-power lightning protection under size, but because
Its high threshold（Breakdown voltage）, low hold voltage gas discharge characteristic, line voltage and type discharge after easily being responded because of thunderbolt
Electricity（That is afterflow）And make to be short-circuited by protection equipment power supply and can not normal work.GDT used in this product）Can be in Uc=385V feelings
100A follow current interrupts are easily realized under condition.
（2）On carrying out surge protection between L-N, traditional usage is that solve GDT by the way of GDT connects with MOV
Afterflow and MOV current leakage, but due to GDT with the oversized of the MOV of through-current capacity so that this application also has office
It is sex-limited, and alone MOV can not solve the problems, such as that deterioration is on fire caused by its due to leakage current.We are using the afterflow technique life that disappears
The mode of the more overlapped in series of GDT of production has solved the problems, such as GDT afterflow well, and Fig. 8 is single GDT and five lamination GDT
The superposition comparison diagram of surge response curve when using respectively；
In figure when surge voltage cuts power circuit, GDT disruptive discharges at once, arc light residual voltage after single GDT disruptive discharges
Only about 20V（It is substantially unchanged with size of current）, marked with V1 in figure；That five lamination GDT is then about 100V（Five times of list
GDT values）, marked with V2 in figure.When power frequency sine wave voltage is down to close to V1 or V2, two class GDT can blow-out, now GDT
Interior a large amount of electric charges start compound and are attributed to static state.GDT be attributed to static state time be with discharge tube inside remaining the quantity of electric charge into
Direct ratio, that is, it can be seen from the figure that directly proportional to freewheel current during arc discharge, t2>>T1, so five lamination GDT
The afterflow much larger than single GDT can be interdicted, in theory more increase one-level GDT then more one times follow current interrupt abilities.
（3）The problem of afterflow, solves, but make it that Up values are higher because more GDT connect, and this can pass through such as Fig. 9-10
It is shown to increase peripheral cell to solve：
（4）From this, can only be used between L-N（It is not required to MOV series connection）It is afterflow GDT superpositions are only needed to realize small size, big more
The surge protection of through-current capacity.
（5）The thermal tripping function of original creation, in the case of strong thunderbolt is run into, GDT heatings cause low temperature solder joint thermal tripping, so as to
Safe escape power network, avoid product burning on fire.
（6）Product carries long-range remote signalling warning dry contact, and product issues heat in overheat, overcurrent condition and threaded off.
（7）Securely and reliably, hermetically sealed design, arcing phenomena will not be produced.
（8）Voltage protection level reaches the level of C level protectors, and discharge capacity reaches B levels protector level.
（9）B levels protection device and C level protection devices are concentrated in together in structure, compact, energy is realized automatic
Coordinate.
（10）Technique is investigated, can long-term work in the presence of a harsh environment, it is easy for installation, safeguard simple.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (2)
- A kind of 1. B+C types surge protective device of three-phase power supply, it is characterised in that：The B+C types surge protective device of three-phase power supply includes 4 Module（1）；Each module（1）Including：The upper and lower shell of module（2,17）, plastic, transparent window（5）, shell fixing screws A, B（3, 4）, remote signalling combination circuit plate（6）, low temperature point connection sheet（7）, shell fragment（10）, pressing line frame screw A, B（8,13）, gas puts connection sheet （14）, multistage non-follow current gas discharge tube（9）, band thermal tripping piezo-resistance A, B（11,12）, remote signalling terminal（16）, three-core conductor （18）；The upper and lower shell of module（2,17）, its material is environmentally friendly PBT material, is shaped through mold injection, has high insulating property And V-0 fire-protection ratings；The plastic, transparent window（5）, be the B+C type surge protective device of three-phase power supply Indication of Losing Efficacy window, its material for environmental protection PBT material, shaped through mold injection, there is high insulating property and V-0 fire-protection ratings；Shell fixing screws A, B（3,4）, Its material is stainless steel material；The remote signalling combination circuit plate（6）, this circuit board forms normally opened, normally-closed contact by 3 microswitch series and parallels；The low temperature point connection sheet（7）, material is the tin plating composition of environmentally friendly red copper, handles and shapes through mould punching, is that failure is threaded off The part of mechanism；The shell fragment（10）, material is the tin plating composition of environmentally friendly tin-phosphor bronze, through mould punching handle shape, material phosphorus content compared with Height, its fatigue resistance is higher, and is formed by special thermal treatment, and elasticity and wearability are preferable, is the group of failure tripping mechanism Into part；Described pressing line frame screw A, B（8,13）, be the B+C type surge protective device of three-phase power supply wiring crimping screw, its material Matter is stainless steel material；The gas puts connection sheet（14）, material is the tin plating composition of environmentally friendly red copper, handles and shapes through mould punching；Multistage non-follow current gas discharge tube（9）, be the B+C type surge protective device of three-phase power supply core component, be lightning protection Main body device；Wherein, by shell fixing screws A, B（3,4）Realize the upper and lower shell of module（2,17）Fixation；Multistage non-follow current gas discharge tube（9）With low temperature point connection sheet（7）Connection, low temperature point connection sheet（7）With shell fragment（10）It is logical Cross the welding of low temperature solder stick, shell fragment（10）Pass through pressing line frame screw A（8）It is fixed；Wherein, piezo-resistance A（11）To coordinate gas-discharge tube to start, multistage non-follow current gas discharge tube is welded on（9）Without continuous Banish A, B both ends of fulgurite；Piezo-resistance B（12）To reduce residual voltage, multistage non-follow current gas discharge tube is welded on（9）Without afterflow C, D both ends of discharge tube；Remote signalling terminal（16）, pass through wire and remote signalling combination circuit plate（6）It is connected, when remote signalling combination circuit plate（6）Fine motion When on off state changes, remote signalling terminal is delivered to by wire（16）On；Three-core conductor（18）, it is connected to remote signalling combination circuit plate （6）And remote signalling terminal（16）；The gas puts connection sheet（14）Pass through pressing line frame screw B（13）It is fixed.
- 2. B+C types surge protective device of three-phase power supply according to claim 1, it is characterised in that：The method of operation is as follows；Work as multistage Non-follow current gas discharge tube（9）Occur excessively stream, overheat in the case of strong lightning current, heat transfer gives low temperature point connection sheet（7）, it is low Warm spot connection sheet（7）With shell fragment（10）Connect and formed by low temperature scolding tin wire bond, multistage non-follow current gas discharge tube heating causes to weld Point fusing, shell fragment（10）Metal clips flick, shell fragment crimping remote signalling combination circuit plate（6）Microswitch, microswitch shape Remote signalling terminal is transmitted by wire after state change（16）On；Multistage non-follow current gas discharge tube（9）Heating causes solder joint heat to depart from, Gas-discharge tube departs from power network, so as to avoid the B+C type surge protective device of three-phase power supply catching fires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048784.4A CN105591376B (en) | 2016-01-26 | 2016-01-26 | B+C type surge protective device of three-phase power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048784.4A CN105591376B (en) | 2016-01-26 | 2016-01-26 | B+C type surge protective device of three-phase power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105591376A CN105591376A (en) | 2016-05-18 |
| CN105591376B true CN105591376B (en) | 2018-03-06 |
Family
ID=55930715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610048784.4A Active CN105591376B (en) | 2016-01-26 | 2016-01-26 | B+C type surge protective device of three-phase power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105591376B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932637B (en) * | 2016-06-20 | 2018-05-25 | 深圳远鹏装饰集团有限公司 | A kind of lightning protection of equipment room earthed system |
| CN106548911B (en) * | 2016-12-15 | 2019-04-09 | 天津协盛科技股份有限公司 | A kind of thermal release device of Surge Protector |
| CN107706898A (en) * | 2017-11-01 | 2018-02-16 | 广东安迅防雷科技股份有限公司 | AC power Surge Protector |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
| CN108923406A (en) * | 2018-08-20 | 2018-11-30 | 江苏东光电子有限公司 | A kind of Surge Protector and preparation method thereof |
| CN114864203B (en) * | 2022-06-10 | 2024-01-30 | 浙江元达防雷科技有限公司 | B+C three-phase power lightning arrester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266836Y (en) * | 2008-08-28 | 2009-07-01 | 四川铭士电子科技有限责任公司 | Overvoltage protector and integrated overvoltage protector combination |
| US8035946B2 (en) * | 2006-02-16 | 2011-10-11 | Telefonaktiebolaget L M Ericsson (Publ) | Overvoltage protector circuit and a detector circuit for supervising such a protector circuit |
| CN204131120U (en) * | 2014-10-28 | 2015-01-28 | 长沙飞波通信技术有限公司 | A kind of novel overall structure single phase poaer supply lightning protection box |
| CN204696649U (en) * | 2015-03-23 | 2015-10-07 | 南京普天鸿雁电器科技有限公司 | A kind of single mechanical trip lightning protection device |
-
2016
- 2016-01-26 CN CN201610048784.4A patent/CN105591376B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8035946B2 (en) * | 2006-02-16 | 2011-10-11 | Telefonaktiebolaget L M Ericsson (Publ) | Overvoltage protector circuit and a detector circuit for supervising such a protector circuit |
| CN201266836Y (en) * | 2008-08-28 | 2009-07-01 | 四川铭士电子科技有限责任公司 | Overvoltage protector and integrated overvoltage protector combination |
| CN204131120U (en) * | 2014-10-28 | 2015-01-28 | 长沙飞波通信技术有限公司 | A kind of novel overall structure single phase poaer supply lightning protection box |
| CN204696649U (en) * | 2015-03-23 | 2015-10-07 | 南京普天鸿雁电器科技有限公司 | A kind of single mechanical trip lightning protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105591376A (en) | 2016-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105591376B (en) | B+C type surge protective device of three-phase power supply | |
| CN205319697U (en) | B+C type three phase current surge protector | |
| CN206099331U (en) | Circuit board is with big through -flow power surge protection device | |
| CN201898329U (en) | Double-layer metal clearance type surge protection device | |
| CN205646796U (en) | Mining monitoring substation surge protection circuit | |
| CN201466676U (en) | Secondary grounding protector of electric power voltage transformer | |
| CN209298880U (en) | A kind of surge protection device and system | |
| CN2609253Y (en) | Over-voltage lightning-protection safety protector | |
| CN208908204U (en) | A kind of overheat overcurrent power-off protection device | |
| CN209119804U (en) | Electric furnace overvoltage energy absorption protective device | |
| CN103931064A (en) | Method and circuit arrangement for disconnecting an electrical connection between two connecting points | |
| CN208508516U (en) | A kind of AC power source surge protective device and electronic equipment | |
| CN208674592U (en) | Symmetric form AC/DC universal multilayer clearance lightning-proof device and its circuit structure | |
| CN201616416U (en) | Ceramic high-voltage discharge tube | |
| CN205429713U (en) | Over -voltage protector | |
| CN206180584U (en) | Integral type source defend thunder equipment | |
| CN208874284U (en) | A kind of resistance-capacitance depressurization protection circuit | |
| CN205377277U (en) | Anti lightning strike protection component | |
| CN205283123U (en) | A exchange lightning protection module for photovoltaic equipment | |
| CN110086158A (en) | A kind of overvoltage protection device of electronic circuit | |
| CN104505313B (en) | It is provided with the safety device for high-voltage power equipment of shell fragment | |
| CN208213356U (en) | A kind of automatic power-off protection device of shredder | |
| CN210404733U (en) | Alternating current power supply lightning protection device with overcurrent and overvoltage protection functions | |
| CN206422023U (en) | High-voltage electric power system safeties | |
| CN219918414U (en) | Arc fuse and surge protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |