CN205407218U - SPD backup protection ware - Google Patents
SPD backup protection ware Download PDFInfo
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- CN205407218U CN205407218U CN201620157123.0U CN201620157123U CN205407218U CN 205407218 U CN205407218 U CN 205407218U CN 201620157123 U CN201620157123 U CN 201620157123U CN 205407218 U CN205407218 U CN 205407218U
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- protection device
- current transformer
- spd
- surge protector
- switch
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Abstract
The utility model discloses a SPD backup protection ware, this SPD backup protection ware install the front end in surge protector, this SPD backup protection ware is including all installing current transformer and the switch on the circuit, and current transformer is connected with the release electricity, and the release has the actuating lever, and the switch is connected with the one end of extension spring, and the other end of extension spring is fixed, this SPD backup protection ware still includes rotation axis, driving medium, follower, and the rotation axis articulates driving medium one end, driving medium other end joint follower one end, and follower other end rigid coupling switch, actuating lever actuation transmission pole is rotatory. The utility model discloses simple structure, good reliability use with surge protector cooperation, open -circuit line not when big current rush, and protection surge protector does not divide absolutely, improves surge protector lightning proof effect, resists effectually, when surge protector breaks down, guarantees timely deenergization, protection electric wire netting and electrical safety.
Description
Technical field
This utility model relates to breaker technical field, specifically, be a kind of with surge protector with the use of protection device, be SPD back-up protection device.
Background technology
Surge protector, i.e. SurgeprotectionDevice, be called for short SPD, is indispensable a kind of device in electronic equipment lightning protection.
But, surge protector uses after several times, its internal varistor deterioration, and leakage current strengthens, relieving capacity deficiency of shoving, it is easy to be short-circuited danger；When charged for a long time, it is possible to varistor can be caused to occur on fire even to explode, and surge protector lost efficacy, it is impossible to meet lightning protection requirement.Although having thermel protection device inside surge protector, this thermel protection device is generally fuse, but, its sensitivity is relatively low, reaction is slower, it is impossible to tackle the problem at its root.
Therefore, existing surge protector equipment is perfect not enough, it is thus achieved that a kind of equipment assisting surge protector becomes the target of emphasis that those skilled in the art study all the time and pursuit.
Utility model content
The defect perfect not for solving existing surge protector lightning protection effect; the present utility model SPD back-up protection device; with surge protector with the use of; circuit is not turned off when heavy current impact; protection surge protector not disjunction, improve surge protector lightning protection effect, resist effective, when surge protector breaks down; cut off the electricity supply in time, it is ensured that electrical network and Electrical Safety.
For achieving the above object, the utility model discloses SPD back-up protection device, this SPD back-up protection device is installed on surge protector front end；This SPD back-up protection device includes the current transformer and the switch that are mounted on circuit, and current transformer electrically connects with electrical apparatus release, and electrical apparatus release has drive rod, and switch is connected with one end of extension spring, and the other end of extension spring is fixed；This SPD back-up protection device also includes rotating shaft, driving member, driven member, the hinged driving member one end of rotating shaft, driving member other end clamping driven member one end, the affixed switch of the driven member other end, and drive rod drives drive link to rotate.
When the current value that current transformer senses in circuit is in its work codomain; connected SPD back-up protection device action; drive rod stretches out, promotes driving member; driven member is made to depart from driving member; then extension spring will switch pull-up; realize circuit to disconnect, serve the purpose of protection circuit, surge protector, electrical network and electrical equipment.
Further, the number of current transformer is two, is respectively arranged on two phase line in A phase, B phase, C phase line；The number of switch is three, is respectively arranged on A, B, C three-phase line, and driven member is affixed with three switches respectively.
Further, the number of current transformer is three, is respectively arranged on A, B, C three-phase line.
Further, the number of electrical apparatus release is three, and each electrical apparatus release is connected with a current transformer respectively.
Further, the number of current transformer is one, is installed on live wire.
Further, in parallel between current transformer.
Further, driving member, hooked together by hook between driven member.
Further, electrical apparatus release is magnetictrip.
The beneficial effects of the utility model are: this utility model simple in construction, highly reliable; with surge protector with the use of; circuit is not turned off when heavy current impact; protection surge protector not disjunction; improve surge protector lightning protection effect, resist effective; when surge protector breaks down, timely deenergization, it is ensured that electrical network and Electrical Safety.
Accompanying drawing explanation
The scheme of installation of SPD back-up protection device when Fig. 1 is two phase sampler.
The scheme of installation of SPD back-up protection device when Fig. 2 is the first three phase sampler.
The scheme of installation of SPD back-up protection device when Fig. 3 is protection live wire, zero line structure.
The scheme of installation of SPD back-up protection device when Fig. 4 is the second three phase sampler.
The scheme of installation of SPD back-up protection device when Fig. 5 is the third three phase sampler.
The scheme of installation of SPD back-up protection device when Fig. 6 is protect live wire to ground structure.
In figure,
1, extension spring；2, current transformer；3, switch；4, A phase；5, B phase；6, C phase；7, driven member；8, driving member；9, drive rod；10, electrical apparatus release；11, rotating shaft；12, zero line；13, live wire.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present utility model carried out detailed explanation and explanation.
Embodiment one:
SPD back-up protection device as shown in Figure 1, this SPD back-up protection device is installed on surge protector front end, and surge protector is played the effect of auxiliary, standby by this utility model；This SPD back-up protection device includes the current transformer 2 and the switch 3 that are mounted on circuit; current transformer 2 electrically connects with electrical apparatus release 10; electrical apparatus release 10 has drive rod 9; drive rod 9 can stretch; the electrical apparatus release 10 of the present embodiment is magnetictrip 10; switch 3 is connected with one end of extension spring 1, and the other end of extension spring 1 is fixed；This SPD back-up protection device also includes rotating shaft 11, driving member 8, driven member 7; rotating shaft 11 hinged driving member 8 one end; driving member 8 other end clamping driven member 7 one end; in the present embodiment; hook together by hook between driving member 8, driven member 7; the affixed switch 3 of driven member 7 other end, drive rod 9 drives drive link to rotate.The present embodiment can solve the SPD problem being short-circuited between phase and phase, as shown in Figure 1, the number of current transformer 2 is two, two current transformers 2 are in parallel, electrically connect with electrical apparatus release 10 respectively, two current transformers 2 are respectively arranged on two phase line in A, B, C three-phase line, A phase 4, B phase 5, C phase 6 composition three-phase electricity, the present embodiment is respectively arranged in A phase 4 and C phase 6；The number of switch 3 is three, is respectively arranged on A, B, C three-phase line, and it is affixed that driven member 7 switchs 3 with three respectively；Under switch 3 closure states, after current transformer 2 senses the electric current of its work codomain, the action of connected electrical apparatus release 10; drive rod 9 stretches out, promotes driving member 8; driving member 8 and driven member 7 depart from, and extension spring 1 is shunk, switched 3 disconnections by three, reaches the purpose of protection electrical network and electrical equipment；Work codomain can set according to actual needs, such as 3 to 10 amperes.
Embodiment two:
As in figure 2 it is shown, on the basis of embodiment one, in the present embodiment, the number of current transformer 2 is three, being respectively arranged on A, B, C three-phase line, three current transformers 2 are in parallel, connect electrical apparatus release 10 respectively.To A phase 4, B phase 5, C phase 6 sampling while the present embodiment; after current transformer 2 senses the electric current of its work codomain; the action of connected electrical apparatus release 10; drive rod 9 stretches out, promotes driving member 8; driving member 8 and driven member 7 depart from; extension spring 1 is shunk, is simultaneously switched off by three switches 3, reaches the purpose of protection electrical network and electrical equipment.
Embodiment three:
As it is shown on figure 3, the present embodiment protection is be provided with the zero line 12 of SPD, live wire 13 structure, the number of current transformer 2 is one, is installed on live wire 13.When zero line 12, live wire 13 are short-circuited; after current transformer 2 senses the electric current of its work codomain; the action of connected electrical apparatus release 10; drive rod 9 stretches out, promotes driving member 8; driving member 8 and driven member 7 depart from; extension spring 1 is shunk, is disconnected by switch 3, reaches the purpose of protection electrical network and electrical equipment.
Embodiment four:
As shown in Figure 4, on the basis of embodiment one, in the present embodiment, the number of electrical apparatus release 10 is three, and each electrical apparatus release 10 is connected with a current transformer 2 respectively.When any line to line fault in the three-phase line of SPD place, protect arbitrarily biphase.After current transformer 2 on wherein biphase senses the electric current of its work codomain; the action of connected electrical apparatus release 10, drive rod 9 stretches out, promotes driving member 8, and driving member 8 and driven member 7 depart from; extension spring 1 is shunk, is disconnected by the switch 3 on biphase, reaches the purpose of protection electrical network and electrical equipment.
Embodiment five:
As it is shown in figure 5, on the basis of embodiment one, in the present embodiment, when being short-circuited between SPD place phase and phase or phase and zero line 12, then the phase of short circuit can be disconnected or disconnects all phases, for disconnecting the mode of A, B, C three-phase in Fig. 5.After current transformer 2 senses the electric current of its work codomain; the action of connected electrical apparatus release 10, drive rod 9 stretches out, promotes driving member 8, and driving member 8 and driven member 7 depart from; extension spring 1 shrinks, by all off for the switch 3 on three-phase, reach the purpose of protection electrical network and electrical equipment.
Embodiment six:
As shown in Figure 6; the present embodiment produces, for the SPD of one pole, the situation that lasting current limliting is revealed over the ground; after current transformer 2 senses the electric current of its work codomain; the action of connected electrical apparatus release 10; drive rod 9 stretches out, promotes driving member 8; driving member 8 and driven member 7 depart from, and extension spring 1 is shunk, Drawing switch 3, disconnected by the switch 3 on live wire 13, reach the purpose of protection electrical network and electrical equipment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and simple modifications etc. made in this utility model flesh and blood, should be included within protection domain of the present utility model.
Claims (8)
1.SPD back-up protection device, it is characterised in that: this SPD back-up protection device is installed on surge protector front end；This SPD back-up protection device includes the current transformer (2) and the switch (3) that are mounted on circuit; current transformer electrically connects with electrical apparatus release (10); electrical apparatus release has drive rod (9); switch is connected with one end of extension spring (1), and the other end of extension spring is fixed；This SPD back-up protection device also includes rotating shaft (11), driving member (8), driven member (7); the hinged driving member one end of rotating shaft; driving member other end clamping driven member one end, the affixed switch of the driven member other end, drive rod drives drive link to rotate.
2. SPD back-up protection device according to claim 1, it is characterised in that: the number of current transformer is two, is respectively arranged on two phase line in A phase (4), B phase (5), C phase (6) circuit；The number of switch is three, is respectively arranged on A, B, C three-phase line, and driven member is affixed with three switches respectively.
3. SPD back-up protection device according to claim 2, it is characterised in that: the number of current transformer is three, is respectively arranged on A, B, C three-phase line.
4. SPD back-up protection device according to claim 3, it is characterised in that: the number of electrical apparatus release is three, and each electrical apparatus release is connected with a current transformer respectively.
5. SPD back-up protection device according to claim 1, it is characterised in that: the number of current transformer is one, is installed on live wire (13).
6. the SPD back-up protection device according to Claims 2 or 3, it is characterised in that: in parallel between current transformer.
7. SPD back-up protection device according to claim 1, it is characterised in that: hooked together by hook between driving member, driven member.
8. SPD back-up protection device according to claim 1, it is characterised in that: electrical apparatus release is magnetictrip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157123.0U CN205407218U (en) | 2016-03-02 | 2016-03-02 | SPD backup protection ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157123.0U CN205407218U (en) | 2016-03-02 | 2016-03-02 | SPD backup protection ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205407218U true CN205407218U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620157123.0U Active CN205407218U (en) | 2016-03-02 | 2016-03-02 | SPD backup protection ware |
Country Status (1)
| Country | Link |
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| CN (1) | CN205407218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728573A (en) * | 2019-01-08 | 2019-05-07 | 江苏嘉顿威尔电气有限公司 | A kind of electronics adjusting formula surge back protection system |
| CN109842368A (en) * | 2018-09-26 | 2019-06-04 | 苏州长风自动化科技有限公司 | A kind of intelligent detection unit and header box with surge protection function |
-
2016
- 2016-03-02 CN CN201620157123.0U patent/CN205407218U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842368A (en) * | 2018-09-26 | 2019-06-04 | 苏州长风自动化科技有限公司 | A kind of intelligent detection unit and header box with surge protection function |
| CN109728573A (en) * | 2019-01-08 | 2019-05-07 | 江苏嘉顿威尔电气有限公司 | A kind of electronics adjusting formula surge back protection system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |