CN203520515U - Wiring structure of prepayment type electric energy meter - Google Patents
Wiring structure of prepayment type electric energy meter Download PDFInfo
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- CN203520515U CN203520515U CN201320679737.1U CN201320679737U CN203520515U CN 203520515 U CN203520515 U CN 203520515U CN 201320679737 U CN201320679737 U CN 201320679737U CN 203520515 U CN203520515 U CN 203520515U
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- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The utility model discloses a wiring structure of a prepayment type electric energy meter and belongs to the field of wiring devices. The wiring structure comprises a main circuit control switch group, a three-phase prepayment electric energy meter and an automatic air switch group, wherein the main circuit control switch group consists of three control switches arranged on a three-phase power line and arranged in front of the prepayment electric energy meter; and the automatic air switch group consists of three automatic air switches arranged on the three-phase power line and arranged between the prepayment electric energy meter and a load. With the adoption of the wiring structure, a user with a larger rural power grid low-voltage temporary power consumption power load can use power more flexibly and conveniently and is no longer limited by time, and power-off control is realized through the automatic air switches, so that the power consumption state is more reasonable and standard, meanwhile, the labor intensity of workers in the aspect of power consumption control is reduced, and the working efficiency is improved; when a main circuit is required to be maintained or the three-phase prepayment electric energy meter is required to be maintained and corrected, the main circuit control switches can be switched off, so that the control is more convenient.
Description
Technical field
The utility model relates to a kind of wiring construction.
Background technology
At present Rural Low-Voltage Power Network temporary electricity living load is larger, and mobility is strong, and the electricity consumption box body of use is simple in structure, and external form is different, not of uniform size, and device arrangements is chaotic, and quality, security performance are poor; Check meter in artificial scene monthly or when temporary electricity stops, and electricity arrears exists certain potentiality, and user needs monthly the time limit in accordance with regulations to pay dues, and management workload is large, and user power utilization is inconvenient.
DTSY72 type three-phase prepayment electric energy meter is the conventional a kind of electric energy meter in rural area.This is a kind of electric energy meter of external impressed current mutual inductor, 1,4,7 terminals of electric energy meter connect Current Transformer Secondary side S1 end, it is electric current end of incoming cables, 3,6,9 terminals of electric energy meter connect Current Transformer Secondary side S2 end, it is electric current leading-out terminal, 2,5,8 terminals connect respectively A, B, C three-phase supply, terminal 10,11 connecting to neutral line ends.For safety, ground connection after the S2 end of three current transformers is connected.The book should be noted that, the current measuring sampling of each current transformer must keep homophase with its voltage sampling, that is and, terminal 1,2,3 is one group, and terminal 4,5,6 is one group, and terminal 7,8,9 is one group.After terminal 3,6,9 and 11 outlets, connect load.Concrete wiring diagram as shown in Figure 1.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of for the larger user of low pressure temporary electricity living load and prepayment type electric energy meter wiring construction simple in structure, that be convenient to the flexible control of electricity consumption situation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of prepayment type electric energy meter wiring construction, comprises main road gauge tap group, three-phase prepayment electric energy meter and automatic air-break switch group; Described main road gauge tap group is comprised of three gauge tap that are arranged on three-phase power line, three-phase is prepay before electric energy meter, and described automatic air-break switch group is comprised of three automatic air-break switches that are arranged on three-phase power line, three-phase is prepay between electric energy meter and load.
Described automatic air-break switch is the air switch with shunt opening coil.
The shunt opening coil of described automatic air-break switch is connected between the connection terminal and three-phase prepayment electric energy meter of switch and load.
The model of described gauge tap is HD-11 type knife-like switch.
The technical progress that adopts technique scheme to obtain is: utilize structure of the present utility model to carry out wiring, can be convenient Rural Low-Voltage Power Network temporary electricity living load be controlled compared with large user's electricity consumption, make this type of user's electricity consumption no longer be subject to time restriction, use more flexibly, conveniently, by automatic air-break switch, realizing power-off controls, the electricity consumption situation that makes user is reasonable standard more, has also reduced the labour intensity of workman aspect power consumption control simultaneously, has improved work efficiency; Main road gauge tap group can better be controlled user's electricity consumption, when main line needs repairing or three-phase prepayment electric energy meter needs repairing, timing, can disconnect main road gauge tap, makes to control convenient.
Accompanying drawing explanation
Fig. 1 is the wiring construction of existing prepayment electric energy meter;
Fig. 2 is wiring construction figure of the present utility model.
Embodiment
Known as shown in Figure 2, prepayment type electric energy meter wiring construction, comprises main road gauge tap group, three-phase prepayment electric energy meter and automatic air-break switch group; Three gauge tap of described main road gauge tap group by being arranged on three-phase power line, before three-phase prepayment electric energy meter form, and three automatic air-break switches of described automatic air-break switch group by being arranged on three-phase power line, between three-phase electric energy prepayment table and load form.
On three-phase power line A, B, C, be respectively equipped with a gauge tap and an automatic air-break switch.The terminal 1,2,3 of three-phase prepayment electric energy meter is one group, and terminal 2 is directly connected on A phase power lead, and terminal 1,3 connects respectively S1 end and the S2 end of first current transformer, before terminal 2, a gauge tap is set; Terminal 4,5,6 is one group, and terminal 5 is directly connected on B phase power lead, and terminal 4,6 connects respectively S1 end and the S2 end of second current transformer, before terminal 5, a gauge tap is set; Terminal 7,8,9 is one group, and terminal 8 is directly connected on C phase power lead, and terminal 7,9 connects respectively S1 end and the S2 end of the 3rd current transformer, terminal 10 with 11 and together with connecting to neutral line, before terminal 8, a gauge tap is set.Three gauge tap are all located between the power supply of electric energy meter and A, B, C, before being arranged on all connection terminals of prepayment electric energy meter as can be seen here.
Automatic air-break switch is arranged between three-phase prepayment electric energy meter and load.As shown in Figure 1, existing three-phase prepayment electric energy meter has 13 connection terminals, front 11 connection terminal effects are known, and the utility model does not improve these 11 terminal connections modes, just automatic air-break switch are arranged on the three-phase power line after the terminal 11 of prepayment electric energy meter.The two ends of the internal contact device in prepayment electric energy meter are terminal 12 and 13, again automatic air-break switch is linked between these two terminals, automatic air-break switch is with shunt opening coil, one end of shunt opening coil is connected with the terminal 13 of prepayment electric energy meter, the other end is connected with the tie point of air switch and load, terminal 12 connecting to neutral lines, terminal 12 is controlled automatic air-break switch together with 13 under the effect of prepayment electric energy meter current.Concrete connected mode as shown in Figure 2.
Whether, and it is connected on the main line of A, B, C, is therefore called main road gauge tap group in the energising that can directly control prepayment electric energy meter due to gauge tap.Conventionally the switch of this switches set is all closed, normal power-up between three-phase prepayment electric energy meter and main power line, and electric energy meter is normally worked.When needs circuit is keeped in repair or to a certain electric energy meter keep in repair, timing, only this need be prepay to three gauge tap that electric energy meter is corresponding and disconnect, very convenient.The model of gauge tap is HD-11 type knife-like switch.Those skilled in the art can select other suitable switch models according to the actual requirements.
The fundamental purpose of automatic air-break switch group is to control user flexibility, standard electricity consumption.Conventionally after the remaining sum in three-phase prepayment electric energy meter is zero, three-phase prepayment electric energy meter quits work, and user can not electricity consumption.But when low pressure temporary electricity living load is larger, the required wire of power-off protection is thicker, can not be arranged in table, can only be arranged on off-balancesheet.It is the prepayment electric energy meter that domestic consumer is used that the utility model adopts, and by main line gauge tap group and automatic air-break switch group are set, makes it for the larger user of low pressure temporary electricity living load, makes its electricity consumption situation more flexible.The utility model principle of work is: while there is no remaining sum in prepayment electric energy meter, electric energy meter quits work, internal contact device is done corresponding action, by terminal 12 and 13 actings in conjunction, three automatic air-break switches are disconnected automatically, even if manual operation can not be closed by switch after disconnecting, between electric energy meter and three-phase power line, can not form loop, electric energy meter can not be worked all the time.Only have in electric energy meter and fill the electricity charge with, automatic air-break switch could be made to form loop between electric energy meter and three-phase power line by artificial closed, and user starts normal electricity consumption.This has just guaranteed user's standard, rational utilization of electricity.
The model of automatic air-break switch is NM1-225S.Those skilled in the art can select other suitable switch models according to the actual requirements.
Conventionally the function for main road gauge tap group and automatic air-break switch group is guaranteed, and these two switches set need to be set in seal box, and domestic consumer is not reached.Also electric energy meter can be sealed just more appropriate simultaneously.Provide a preferred version below: main road gauge tap group, automatic air-break switch group and prepayment electric energy meter are correctly installed, this three is combined in a less area as far as possible, then this integral body is fixed in an ammeter box that be welded by cold-rolled steel sheet, single open-door, at chamber door place, be provided with three windows, a plug-in card is used, a display window that is used for observing electric energy meter, one is used for automatic air-break switch group to expose out, realizes manual operation.In addition, whole ammeter box no longer includes window, and chamber door is locked.User can only carry out plug-in card, observe electric energy meter information and manual operation automatic air-break switch group like this, and other operations all can not be carried out.This has just effectively guaranteed user's reasonable standard electricity consumption.For insurance more, this electronic box can be set in existing ammeter box, be so just equivalent to do double insurance.
Being used in conjunction with of main road gauge tap group and automatic air-break switch group, make the user power utilization that Rural Low-Voltage Power Network temporary electricity living load is larger more flexible, no longer be subject to the restriction of time, also the control that makes to prepay electric energy meter is standard more, greatly facilitate staff's work, reduce labour intensity, improved work efficiency.
Claims (4)
1. a prepayment type electric energy meter wiring construction, is characterized in that comprising main road gauge tap group, three-phase prepayment electric energy meter and automatic air-break switch group; Described main road gauge tap group is comprised of three gauge tap that are arranged on three-phase power line, three-phase is prepay before electric energy meter, and described automatic air-break switch group is comprised of three automatic air-break switches that are arranged on three-phase power line, three-phase is prepay between electric energy meter and load.
2. a kind of prepayment type electric energy meter wiring construction according to claim 1, is characterized in that described automatic air-break switch is the air switch with shunt opening coil.
3. a kind of prepayment type electric energy meter wiring construction according to claim 2, is characterized in that the shunt opening coil of described automatic air-break switch is connected between the connection terminal and three-phase prepayment electric energy meter of switch and load.
4. a kind of prepayment type electric energy meter wiring construction according to claim 1 and 2, the model that it is characterized in that described gauge tap is HD-11 type knife-like switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679737.1U CN203520515U (en) | 2013-10-31 | 2013-10-31 | Wiring structure of prepayment type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679737.1U CN203520515U (en) | 2013-10-31 | 2013-10-31 | Wiring structure of prepayment type electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN203520515U true CN203520515U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320679737.1U Expired - Fee Related CN203520515U (en) | 2013-10-31 | 2013-10-31 | Wiring structure of prepayment type electric energy meter |
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| CN (1) | CN203520515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279857A (en) * | 2015-11-04 | 2016-01-27 | 国网山东省电力公司济南供电公司 | Remote fee control electric energy meter and remote fee cotrol system |
-
2013
- 2013-10-31 CN CN201320679737.1U patent/CN203520515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279857A (en) * | 2015-11-04 | 2016-01-27 | 国网山东省电力公司济南供电公司 | Remote fee control electric energy meter and remote fee cotrol system |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20181031 |