CN203871854U - Smart lightning protector for three-phase electric energy meter power source and 485 circuit - Google Patents
Smart lightning protector for three-phase electric energy meter power source and 485 circuit Download PDFInfo
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- CN203871854U CN203871854U CN201420325537.0U CN201420325537U CN203871854U CN 203871854 U CN203871854 U CN 203871854U CN 201420325537 U CN201420325537 U CN 201420325537U CN 203871854 U CN203871854 U CN 203871854U
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- 230000001012 protector Effects 0.000 title abstract description 5
- 230000007704 transition Effects 0.000 claims description 18
- 210000004899 c-terminal region Anatomy 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 abstract description 2
- 230000001052 transient effect Effects 0.000 abstract 4
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a smart lightning protector for a three-phase electric energy meter power source and a 485 circuit. Fifteen three-phase power wiring terminals are distributed on a shell; a terminal PE2, a terminal A1, a terminal B1, a terminal A2 and a terminal B2 are distributed on the shell from left to right; a terminal A, a terminal B, a terminal C, a terminal N and a terminal PE1 are orderly distributed at the front side of the shell from left to right; one transient diode is connected in series with another two parallel-connected transient diodes, and two such structures that one transient diode is connected in series with another two parallel-connected transient diodes are formed and connected in parallel together by use of the wire of a terminal PE1. The smart lightning protector for the three-phase electric energy meter power source and the 485 circuit is convenient to mount and wire and mounted in an electric energy meter box to form an effective protective layer against thunder and lightning; the smart lightning protector is capable of preventing the three-phase electric energy meter and a three-phase acquisition terminal from being struck by lightning to the utmost extent, thereby realizing the protective effect, and also capable of avoiding an alternating current power source and a 485 interface from being struck by lightning and counting lightning strokes.
Description
Technical field
The utility model relates to electric energy meter technical field, is specially a kind of three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices.
Background technology
At present, low-tension supply lightning protection is single-phase lightning protection device, the similar earth leakage protector of appearance, internal structure is too compact, be unfavorable for heat radiation and safeguard, the lightning protection of three-phase electric energy meter, need two network signal lightning protection device parts of above three individual event lightning-protection modules to form, use cumbersome, there is no in the market special-purpose three-phase electric energy meter lightning protection device, therefore need to require design, manufacture the three-phase electric energy meter lightning protection device with Intelligent statistical function according to professional lightning protection, for this reason, we propose a kind of three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices.
Utility model content
The purpose of this utility model is to provide a kind of three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices, comprise shell, display unit and internal circuit, described three phase mains binding post has 15 to be distributed on shell, and described PE2 terminal, A1 terminal, B1 terminal, A2 terminal and B2 terminal are from left to right distributed on shell; Described shell front side from left to right distributing successively A terminal, B terminal, C terminal, N terminal and PE1 terminal; Internal wiring comprises: described outside three piezo-resistances are connected with inner three transition diode triangles, described piezo-resistance and gas discharge tube series connection, and this cascaded structure has four groups to be connected in parallel, described A terminal line, B terminal line, C terminal line and N terminal line are connected with gas discharge tube with four groups of piezo-resistances that are cascaded from top to bottom successively; A described transition diode and two other transition diode being connected in parallel are cascaded, the structure that a described transition diode and two other transition diode being connected in parallel are cascaded has two groups, and is connected in parallel by PE2 terminal line.
Preferably, the model of described PE2 terminal, A1 terminal, B1 terminal, A2 terminal and B2 terminal is 485 circuit lightning protection connecting terminals.
Preferably, from left to right distributing the successively model of A terminal, B terminal, C terminal, N terminal and PE1 terminal of described shell front side is three phase mains lightning protection connecting terminal.
The right-hand member of four groups of piezo-resistances that are connected in parallel preferably, and the concatermer of gas discharge tube leaves PE1 terminal line.
Preferably, the right side of described transition diode is left A1 terminal line, B1 terminal line, A2 terminal line and B2 terminal line from top to bottom successively.
Compared with prior art; the beneficial effects of the utility model are: this three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices; installation, easy-to-connect; be convenient to safeguard, be arranged in electric energy meter case, form effective overcoat of thunder and lightning; avoid to greatest extent three-phase electric energy meter and three-phase acquisition terminal to be struck by lightning; play a protective role, avoid AC power, 485 interfaces to draw thunder, can add up thunderbolt situation.
Accompanying drawing explanation
Fig. 1 is practical schematic appearance;
Fig. 2 is this practical three-phase electric energy meter power lightning protection circuit diagram;
Fig. 3 is this practical RS-485 interface lightning protection circuit figure.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-3, the utility model provides a kind of technical scheme: a kind of three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices, comprise shell 1, display unit 2 and internal circuit, described three phase mains binding post 3 has 15 to be distributed on shell 1, described three phase mains binding post has 15 to be distributed on shell, and described PE2 terminal, A1 terminal, B1 terminal, A2 terminal and B2 terminal are from left to right distributed on shell; The model of described PE2 terminal 4, A1 terminal 5, B1 terminal 6, A2 terminal 7 and B2 terminal 8 is 485 circuit lightning protection connecting terminals; From left to right distributing the successively model of A terminal 9, B terminal 10, C terminal 11, N terminal 12 and PE1 terminal 13 of described shell 1 front side is three phase mains lightning protection connecting terminal; Internal wiring comprises: described outside three piezo-resistances 14 are connected with inner three transition diode 16 triangles, described piezo-resistance 14 and gas discharge tube 15 series connection, and this cascaded structure has four groups to be connected in parallel, described A terminal line 90, B terminal line 100, C terminal line 110 and N terminal line 120 are connected with gas discharge tube 15 with four groups of piezo-resistances 14 that are cascaded from top to bottom successively, described in the right-hand member of concatermer of four groups of piezo-resistances 14 being connected in parallel and gas discharge tube 15 leave PE1 terminal line 130; A described transition diode 16 and two other transition diode 16 being connected in parallel are cascaded, the structure that a described transition diode 16 and two other transition diode 16 being connected in parallel are cascaded has two groups, and by PE2 terminal line 40, be connected in parallel, the right side of described transition diode 16 is left A1 terminal line 50, B1 terminal line 60, A2 terminal line 70 and B2 terminal line 80 from top to bottom successively.
Operation principle: the outside three-phase electric energy meter framework that adopts of this lightning protection device, inner modular construction, three grades of lightning protection, the earial drainages of adopting design, and are easy to install and lightning protection wiring, for the place that there is no ground wire, also can use flexibly.Be current collection source and 485 circuit lightning protection and one, and there is Intelligent-counting function.When thunder and lightning comes, this device takes the lead in starting, the wiring of three phase mains binding post 3 and zero line and A1 terminal line 50, B1 terminal line 60, A2 terminal line 70 and B2 terminal line 80 are passed by the induction thunder coming, to thunder and lightning short circuit or lightning current, introduce the earth rapidly, avoid to greatest extent induction lightening stream to flow into electric energy meter AC power.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a three-phase electric energy apparent source and 485 circuit intelligent lightning protection devices, comprise shell, display unit and internal circuit, it is characterized in that: described three phase mains binding post has 15 to be distributed on shell, described PE2 terminal, A1 terminal, B1 terminal, A2 terminal and B2 terminal are from left to right distributed on shell; Described shell front side from left to right distributing successively A terminal, B terminal, C terminal, N terminal and PE1 terminal; Described outside three piezo-resistances are connected with inner three transition diode triangles, described piezo-resistance and gas discharge tube series connection, and this cascaded structure has four groups to be connected in parallel, described A terminal line, B terminal line, C terminal line and N terminal line are connected with gas discharge tube with four groups of piezo-resistances that are cascaded from top to bottom successively; A described transition diode and two other transition diode being connected in parallel are cascaded, the structure that a described transition diode and two other transition diode being connected in parallel are cascaded has two groups, and is connected in parallel by PE2 terminal line.
2. a kind of three-phase electric energy apparent source according to claim 1 and 485 circuit intelligent lightning protection devices, is characterized in that: the model of described PE2 terminal, A1 terminal, B1 terminal, A2 terminal and B2 terminal is 485 circuit lightning protection connecting terminals.
3. a kind of three-phase electric energy apparent source according to claim 1 and 485 circuit intelligent lightning protection devices, is characterized in that: from left to right distributing the successively model of A terminal, B terminal, C terminal, N terminal and PE1 terminal of described shell front side is three phase mains lightning protection connecting terminal.
4. a kind of three-phase electric energy apparent source according to claim 1 and 485 circuit intelligent lightning protection devices, is characterized in that: described in the right-hand member of concatermer of four groups of piezo-resistances being connected in parallel and gas discharge tube leave PE1 terminal line.
5. a kind of three-phase electric energy apparent source according to claim 1 and 485 circuit intelligent lightning protection devices, is characterized in that: the right side of described transition diode is left A1 terminal line, B1 terminal line, A2 terminal line and B2 terminal line from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325537.0U CN203871854U (en) | 2014-06-11 | 2014-06-11 | Smart lightning protector for three-phase electric energy meter power source and 485 circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325537.0U CN203871854U (en) | 2014-06-11 | 2014-06-11 | Smart lightning protector for three-phase electric energy meter power source and 485 circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871854U true CN203871854U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325537.0U Expired - Fee Related CN203871854U (en) | 2014-06-11 | 2014-06-11 | Smart lightning protector for three-phase electric energy meter power source and 485 circuit |
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| Country | Link |
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| CN (1) | CN203871854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158164A (en) * | 2014-06-11 | 2014-11-19 | 国家电网公司 | Three-phase electric energy meter power supply and 485 circuit intelligent lightning protection apparatus |
-
2014
- 2014-06-11 CN CN201420325537.0U patent/CN203871854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158164A (en) * | 2014-06-11 | 2014-11-19 | 国家电网公司 | Three-phase electric energy meter power supply and 485 circuit intelligent lightning protection apparatus |
| CN104158164B (en) * | 2014-06-11 | 2017-02-15 | 国网山东省电力公司枣庄供电公司 | Three-phase electric energy meter power supply and 485 circuit intelligent lightning protection apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |