CN204556692U - Multiple way electric metering junction box - Google Patents

Multiple way electric metering junction box Download PDF

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Publication number
CN204556692U
CN204556692U CN201520288985.2U CN201520288985U CN204556692U CN 204556692 U CN204556692 U CN 204556692U CN 201520288985 U CN201520288985 U CN 201520288985U CN 204556692 U CN204556692 U CN 204556692U
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CN
China
Prior art keywords
splicing ear
normal open
terminal
electric current
electric energy
Prior art date
Application number
CN201520288985.2U
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Chinese (zh)
Inventor
霍北季
伍健松
Original Assignee
广东电网有限责任公司江门供电局
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Priority to CN201520288985.2U priority Critical patent/CN204556692U/en
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Publication of CN204556692U publication Critical patent/CN204556692U/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power, i.e. electric energy or current, e.g. of consumption
    • G01R11/02Constructional details
    • G01R11/04Housings; Supporting racks; Arrangements of terminals

Abstract

The utility model relates to a kind of multiple way electric metering junction box, by arranging at least two upper connecting terminals at voltage link plate, at least two lower connecting terminals be connected to each other, be connected respectively by voltage yoke plate between described lower connecting terminal with described upper connecting terminal, form the shunt voltage circuit of at least two-way, thus reach the object being divided into the multichannel of at least two-way independently to export in every phase voltage loop; By arrange at electric current terminal block the first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear and be connected to each other first on splicing ear on splicing ear and second, connected by the first electric current yoke plate between described first normal open splicing ear and described second normal open splicing ear, on described first, splicing ear is provided with the second electric current yoke plate and the 3rd electric current yoke plate, when on-load changes electric energy meter, negative control terminal can normally measure, or when on-load changes negative control terminal, electric energy meter can normally measure, and makes electric energy metrical more accurate.

Description

Multiple way electric metering junction box
Technical field
The utility model relates to a kind of circuit connection device, particularly relates to a kind of multiple way electric metering junction box.
Background technology
The electric power meter of current use, its mode of connection is, Secondary Circuit of Potential Transformer potential and current transformers secondary loop current is respectively through the voltage wiring terminal of electric energy metering wiring box and current wiring terminal access electric energy meter and load management terminal, make the voltage circuit of terminal box, electric energy meter and load management terminal in parallel, current return is connected, when on-load changes electric energy meter or load management terminal, first by the voltage yoke plate of electric energy metering wiring box, secondary voltage circuit must be opened a way, by the electric current yoke plate of electric energy metering wiring box the short circuit of secondary current loop, cause load management terminal when changing electric energy meter normally can not measure electric energy, during replacing load management terminal, electric energy meter normally can not measure electric energy, namely change arbitrary table timing voltage secondary circuit to be disconnected, electric current secondary loop short circuit just can be carried out, until changed, after normal power-up, table meter could normally measure, cause electric energy metrical not accurate enough, the electricity lost in Renewal process can only be remedied in the mode of estimation, and the result of estimation often has certain deviation with actual, What is more, if operating personnel will not remedy loss electricity, cause damage to power supply enterprise's interests.
Utility model content
Based on this, be necessary, for the not accurate enough problem of electric energy metrical, to provide a kind of multiple way electric metering junction box.
A kind of multiple way electric metering junction box, comprise junction box body, and the lid corresponding with described junction box body, junction box body is provided with voltage link plate and electric current terminal block, described voltage link plate is provided with at least two upper connecting terminals, described electric current terminal block is provided with the first normal open splicing ear, second normal open splicing ear and the 3rd normal open splicing ear, connected by the first electric current yoke plate between described first normal open splicing ear and described second normal open splicing ear, it is characterized in that, described voltage link plate is also provided with the lower connecting terminal be at least connected to each other, be connected respectively by voltage yoke plate between described lower connecting terminal with described upper connecting terminal, described electric current terminal block be also provided be connected to each other first on splicing ear on splicing ear and second, on described first, splicing ear is provided with the second electric current yoke plate and the 3rd electric current yoke plate.
The utility model is by arranging at least two upper connecting terminals at voltage link plate, at least two lower connecting terminals be connected to each other, be connected respectively by voltage yoke plate between described lower connecting terminal with described upper connecting terminal, form the shunt voltage circuit of at least two-way, thus reach the object being divided into the multichannel of at least two-way independently to export in every phase voltage loop; By arrange at electric current terminal block the first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear and be connected to each other first on splicing ear on splicing ear and second, connected by the first electric current yoke plate between described first normal open splicing ear and described second normal open splicing ear, on described first, splicing ear is provided with the second electric current yoke plate and the 3rd electric current yoke plate, during reaching on-load replacing electric energy meter, negative control terminal can normally measure, or during on-load changes negative control terminal, electric energy meter can normally measure, and makes electric energy metrical more accurate.
Wherein in an embodiment, on described first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear, first, on splicing ear and second, splicing ear is arranged in order and is arranged on described electric current terminal block.
Wherein in an embodiment, on described first normal open splicing ear, the second normal open splicing ear, first, on splicing ear, second, splicing ear and the 3rd normal open splicing ear are arranged in order and are arranged on described electric current terminal block.
By the different arrangement positions of splicing ear on electric current terminal block, provide multiple connected mode, be convenient to the spatial arrangement connection terminal according to junction box body.
Wherein in an embodiment, described junction box body adopts phase three-wire three formula or three-phase and four-line formula.
The major advantage of three-phase system is: in electric power conveying, save wire; Can rotating magnetic field be produced, and create condition for the development of structure asynchronous motor simply easy to use and application; Three-phase system does not get rid of the power supply to single-phase load, and therefore three-phase alternating current obtains and applies the most widely, and adopts the junction box body of phase three-wire three formula or three-phase and four-line formula have also been obtained to apply widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment;
Fig. 2 is the wiring diagram of the electric power meter of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment;
Fig. 3 is the wiring diagram of the electric power meter on-load replacing electric energy meter of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment;
Fig. 4 is the wiring diagram of the electric power meter on-load replacing negative control terminal of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to the wiring diagram of the electric power meter of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment in the structural representation of the two-way phase three-wire three formula electric energy metering wiring box of an embodiment in Fig. 1 and Fig. 2.
Fig. 1, a kind of two-way phase three-wire three formula electric energy metering wiring box, comprise junction box body 1, lid, on junction box body, 1 is provided with voltage link plate 2 and electric current terminal block 3, described voltage link plate 2 is provided with upper connecting terminal 4 and upper connecting terminal 5, described electric current terminal block 3 is provided with the first normal open splicing ear 11, second normal open splicing ear 12 and the 3rd normal open splicing ear 13, connected by the first electric current yoke plate 16 between described first normal open splicing ear 11 and described second normal open splicing ear 12, it is characterized in that, described voltage link plate 2 is also provided with two lower connecting terminals be connected to each other 7 and lower connecting terminal 8, be connected respectively by voltage yoke plate 9 between described lower connecting terminal 7 with described upper connecting terminal 4, be connected respectively by voltage yoke plate 10 between described lower connecting terminal 8 with described upper connecting terminal 5, described electric current terminal block 3 be also provided be connected to each other first on splicing ear 15 on splicing ear 14 and second, on described first, splicing ear 14 is provided with the second electric current yoke plate 17 and the 3rd electric current yoke plate 18.
Shown in composition graphs 1,2, in the present embodiment, the electric power meter of access two-way phase three-wire three formula electric energy metering wiring box, comprises electric energy meter, negative control terminal, current transformer, voltage transformer (VT) and two-way phase three-wire three formula electric energy metering wiring box; Electric energy meter comprises connection terminal 1 ~ 13, and the connection terminal 1 of wherein electric current input is connected with the connection terminal 3 that electric current exports, and the connection terminal 7 of electric current input is connected with the connection terminal 9 that electric current exports, and connection terminal 2,5 is connected voltage respectively with 8; Negative control terminal comprises connection terminal 1 ~ 13, and the connection terminal 1 of wherein electric current input is connected with the connection terminal 3 that electric current exports, and the connection terminal 7 of electric current input is connected with the connection terminal 9 that electric current exports, and connection terminal 2,5 is connected voltage respectively with 8; Voltage transformer (VT) comprises three road secondary voltage circuits; Current transformer comprises two-way secondary current loop.
Its mode of connection is, described secondary voltage circuit is connected with described lower connecting terminal, and described upper connecting terminal 4 is connected with the connection terminal 2 of electric energy meter, and described upper connecting terminal 5 is connected with the connection terminal 2 of negative control terminal; Described secondary current loop is connected with described second normal open splicing ear 12, described first normal open splicing ear 11 is connected with the connection terminal 1 of electric energy meter, on described first, splicing ear 14 is connected with the connection terminal 3 of electric energy meter, on described second, splicing ear 15 is connected with the connection terminal 1 of negative control terminal, described 3rd normal open splicing ear 13 is connected with the connection terminal 3 of negative control terminal, and described 3rd normal open splicing ear 13 is connected with described secondary current loop.
Every phase connection mode of two-way phase three-wire three formula electric energy metering wiring box is identical.
When the electric power meter of access two-way phase three-wire three formula electric energy metering wiring box normally runs, the secondary circuit voltage produced in voltage transformer (VT) inputs from described lower connecting terminal, described upper connecting terminal 4 and described upper connecting terminal 5 is transferred to by described voltage yoke plate 9 and voltage yoke plate 10, electric energy meter is input to through the connection terminal 2 of electric energy meter again from upper connecting terminal 4, be input to negative control terminal with from upper connecting terminal 5 through the connection terminal 2 of negative control terminal, make the voltage circuit of two-way phase three-wire three formula electric energy metering wiring box, electric energy meter and negative control terminal in parallel.
The secondary loop current produced in current transformer inputs from described second normal open splicing ear 12, by electric current yoke plate 16, form short circuit, electric current is transferred to the first normal open splicing ear 11 from the second normal open splicing ear 12, connection terminal 1 again through electric energy meter inputs electric energy meter, then from connection terminal 3 output to two-way phase three-wire three formula electric energy metering wiring box first splicing ear 14, because on splicing ear on first 14 and second, splicing ear 15 is interconnected, electric current exports from splicing ear 15 second, connection terminal 1 through negative control terminal enters negative control terminal, then the 3rd normal open splicing ear 13 of two-way phase three-wire three formula electric energy metering wiring box is outputted to from the connection terminal 3 of negative control terminal, finally get back to current transformer, form electric current from current transformer through the second normal open splicing ear 12, first normal open splicing ear 11, electric energy meter, splicing ear 14 on first, splicing ear 15 on second, negative control terminal, the series current loop of the 3rd normal open splicing ear 13 and current transformer.
Every phase connection mode of two-way phase three-wire three formula electric energy metering wiring box is identical, and therefore its voltage circuit is identical with series current loop.
When the electric power meter of access two-way phase three-wire three formula electric energy metering wiring box normally runs, on-load changes electric energy meter, refers to Fig. 3.
Shown in composition graphs 1, Fig. 3, off voltage yoke plate 9, connect the 3rd normal open splicing ear 12 by the second electric current yoke plate 17 on splicing ear 14 on first simultaneously, thus separated from lower connecting terminal 7 and upper connecting terminal 4 of the secondary circuit voltage produced in voltage transformer (VT), the connection terminal 2 no-voltage input of electric energy meter, simultaneously, because the second electric current yoke plate 17 on splicing ear 14 on first connects the 3rd normal open splicing ear 12, cause short circuit between splicing ear 14 and the 3rd normal open splicing ear 12 on first, the secondary loop current produced in current transformer inputs from described second normal open splicing ear 12, by electric current yoke plate 17, be transferred to splicing ear 14 on first, because on splicing ear on second 15 and first, splicing ear 14 is connected to each other, so electric current spreads out of from splicing ear 15 second, connection terminal 1 through negative control terminal enters negative control terminal, then the 3rd normal open splicing ear 13 of multiple way electric metering junction box is outputted to from the connection terminal 3 of negative control terminal, finally get back to current transformer, form electric current from current transformer through the second normal open splicing ear 12, splicing ear 14 on first, splicing ear 15 on second, negative control terminal, the series current loop of the 3rd normal open splicing ear 13 and current transformer.Therefore, during on-load changes electric energy meter, negative control terminal can normally measure.
When the electric power meter of access two-way phase three-wire three formula electric energy metering wiring box normally runs, on-load changes negative control terminal, refers to Fig. 4.
Shown in composition graphs 1, Fig. 4, off voltage yoke plate 10, connect the 3rd normal open splicing ear 13 by the 3rd electric current yoke plate 18 on splicing ear 14 on first simultaneously, thus separated from lower connecting terminal 8 and upper connecting terminal 5 of the secondary circuit voltage produced in voltage transformer (VT), the connection terminal 2 no-voltage input of negative control terminal, simultaneously, because the 3rd electric current yoke plate 18 on splicing ear 14 on first connects the 3rd normal open splicing ear 13, cause short circuit between splicing ear 14 and the 3rd normal open splicing ear 13 on first, the secondary loop current produced in current transformer inputs from described second normal open splicing ear 12, by electric current yoke plate 16, be transferred to the first normal open splicing ear 11, connection terminal 1 again through electric energy meter inputs electric energy meter, then from connection terminal 3 output to two-way phase three-wire three formula electric energy metering wiring box first splicing ear 14, because the second electric current yoke plate 18 on splicing ear 14 on first connects the 3rd normal open splicing ear 13, form loop short circuit, so electric current is from splicing ear 14 first, the 3rd normal open splicing ear 13 is transferred to through the 3rd electric current yoke plate 18, finally get back to current transformer, form electric current from current transformer through the second normal open splicing ear 12, first normal open splicing ear 11, electric energy meter, splicing ear 14 on first, the series current loop of the 3rd normal open splicing ear 13 and current transformer.Therefore, during on-load changes negative control terminal, electric energy meter can normally measure.
Above-described embodiment is by arranging two upper connecting terminals at voltage link plate, two lower connecting terminals be connected to each other, be connected respectively by voltage yoke plate between described lower connecting terminal with described upper connecting terminal, form two-way shunt voltage circuit, thus reach the object being divided into the multichannel of at least two-way independently to export in every phase voltage loop; By arrange at electric current terminal block the first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear and be connected to each other first on splicing ear on splicing ear and second, connected by the first electric current yoke plate between described first normal open splicing ear and described second normal open splicing ear, on described first, splicing ear is provided with the second electric current yoke plate and the 3rd electric current yoke plate, during reaching on-load replacing electric energy meter, negative control terminal can normally measure, or during on-load changes negative control terminal, electric energy meter can normally measure, and makes electric energy metrical more accurate.
Wherein in an embodiment, on described first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear, first, on splicing ear and second, splicing ear is arranged in order and is arranged on described electric current terminal block.
Wherein in an embodiment, on described first normal open splicing ear, the second normal open splicing ear, first, on splicing ear, second, splicing ear and the 3rd normal open splicing ear are arranged in order and are arranged on described electric current terminal block.
By the different arrangement positions of splicing ear on electric current terminal block, provide multiple connected mode, be convenient to the spatial arrangement connection terminal according to junction box body.
Wherein in an embodiment, described junction box body adopts phase three-wire three formula or three-phase and four-line formula.
The major advantage of three-phase system is: in electric power conveying, save wire; Can rotating magnetic field be produced, and create condition for the development of structure asynchronous motor simply easy to use and application; Three-phase system does not get rid of the power supply to single-phase load, and therefore three-phase alternating current obtains and applies the most widely, and the junction box body of phase three-wire three formula or three-phase and four-line formula have also been obtained and applies widely.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (4)

1. a multiple way electric metering junction box, comprise junction box body, and the lid corresponding with described junction box body, junction box body is provided with voltage link plate and electric current terminal block, described voltage link plate is provided with at least two upper connecting terminals, described electric current terminal block is provided with the first normal open splicing ear, second normal open splicing ear and the 3rd normal open splicing ear, connected by the first electric current yoke plate between described first normal open splicing ear and described second normal open splicing ear, it is characterized in that, described voltage link plate is also provided with at least two lower connecting terminals be connected to each other, be connected respectively by voltage yoke plate between described lower connecting terminal with described upper connecting terminal, described electric current terminal block be also provided be connected to each other first on splicing ear on splicing ear and second, on described first, splicing ear is provided with the second electric current yoke plate and the 3rd electric current yoke plate.
2. multiple way electric metering junction box according to claim 1, it is characterized in that, on described first normal open splicing ear, the second normal open splicing ear, the 3rd normal open splicing ear, first, on splicing ear and second, splicing ear is arranged in order and is arranged on described electric current terminal block.
3. multiple way electric metering junction box according to claim 1, it is characterized in that, on described first normal open splicing ear, the second normal open splicing ear, first, on splicing ear, second, splicing ear and the 3rd normal open splicing ear are arranged in order and are arranged on described electric current terminal block.
4. the multiple way electric metering junction box according to claims 1 to 3 any one, is characterized in that, described junction box body adopts phase three-wire three formula or three-phase and four-line formula.
CN201520288985.2U 2015-05-06 2015-05-06 Multiple way electric metering junction box CN204556692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520288985.2U CN204556692U (en) 2015-05-06 2015-05-06 Multiple way electric metering junction box

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201520288985.2U CN204556692U (en) 2015-05-06 2015-05-06 Multiple way electric metering junction box
PCT/CN2016/079989 WO2016177289A1 (en) 2015-05-06 2016-04-22 Multipath electric power metering junction box
AU2016102354A AU2016102354A4 (en) 2015-05-06 2016-04-22 Multipath electric power metering junction box

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CN204556692U true CN204556692U (en) 2015-08-12

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AU (1) AU2016102354A4 (en)
WO (1) WO2016177289A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105487039A (en) * 2015-11-19 2016-04-13 国家电网公司 Conjunction box without power loss during replacement
CN105896423A (en) * 2016-05-10 2016-08-24 国网浙江省电力公司湖州供电公司 Three-phase three-wire combined terminal box
CN105891566A (en) * 2016-05-10 2016-08-24 国网浙江省电力公司湖州供电公司 Three-phase four-wire combined terminal box
WO2016177289A1 (en) * 2015-05-06 2016-11-10 广东电网有限责任公司江门供电局 Multipath electric power metering junction box
CN107910715A (en) * 2017-06-19 2018-04-13 国网浙江省电力公司湖州供电公司 A kind of thread-changing formula terminal box
CN107910666A (en) * 2017-06-19 2018-04-13 国网浙江省电力公司湖州供电公司 A kind of plug-in terminal box
CN109085402A (en) * 2018-08-30 2018-12-25 中国电力科学研究院有限公司 The multifunctional combined terminal box of electrical energy measurement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006226842A (en) * 2005-02-17 2006-08-31 Toshiba Corp Electronic watt-hour meter
CN2824059Y (en) * 2005-09-23 2006-10-04 董建伦 Test connecting box for single phase electric energy meter with mutual inductor
JP2008039627A (en) * 2006-08-08 2008-02-21 Toshiba Corp Watt-hour meter
CN201066365Y (en) * 2007-08-14 2008-05-28 周兆强 A connection box of power measuring device
CN102798743A (en) * 2012-08-29 2012-11-28 重庆市电力公司电力科学研究院 Wiring terminal box for electric energy meter
CN203811656U (en) * 2014-03-04 2014-09-03 国家电网公司 Electric energy metering combined junction box
CN204556692U (en) * 2015-05-06 2015-08-12 广东电网有限责任公司江门供电局 Multiple way electric metering junction box

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016177289A1 (en) * 2015-05-06 2016-11-10 广东电网有限责任公司江门供电局 Multipath electric power metering junction box
CN105487039A (en) * 2015-11-19 2016-04-13 国家电网公司 Conjunction box without power loss during replacement
CN105896423A (en) * 2016-05-10 2016-08-24 国网浙江省电力公司湖州供电公司 Three-phase three-wire combined terminal box
CN105891566A (en) * 2016-05-10 2016-08-24 国网浙江省电力公司湖州供电公司 Three-phase four-wire combined terminal box
CN107910715A (en) * 2017-06-19 2018-04-13 国网浙江省电力公司湖州供电公司 A kind of thread-changing formula terminal box
CN107910666A (en) * 2017-06-19 2018-04-13 国网浙江省电力公司湖州供电公司 A kind of plug-in terminal box
CN109085402A (en) * 2018-08-30 2018-12-25 中国电力科学研究院有限公司 The multifunctional combined terminal box of electrical energy measurement

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Publication number Publication date
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AU2016102354A4 (en) 2019-05-09

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