CN201616204U - Wiring analog device for electric energy meter - Google Patents
Wiring analog device for electric energy meter Download PDFInfo
- Publication number
- CN201616204U CN201616204U CN2009202237872U CN200920223787U CN201616204U CN 201616204 U CN201616204 U CN 201616204U CN 2009202237872 U CN2009202237872 U CN 2009202237872U CN 200920223787 U CN200920223787 U CN 200920223787U CN 201616204 U CN201616204 U CN 201616204U
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- electric current
- time relay
- current
- keeps
- connects
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Abstract
The utility model provides a wiring analog device for an electric energy meter, comprising a computer, a programmable power supply, a junction box, an electric energy meter, a current transformer and a current holding module, wherein the computer communicates with the programmable power supply so as to control the programmable power supply to output analog voltage and current signals, the voltage signal output end of the programmable power supply is connected with the voltage signal inlet end of the junction box, the current signal output end of the programmable power supply is connected with the current signal inlet end of the junction box through the current holding module and the current transformer, and the electric energy meter is connected with the voltage signal wiring end and the current signal wiring end of the junction box. The device has the advantages of safety, effectiveness and strong reliability.
Description
Technical field
The utility model relates to a kind of wiring analogue means, specifically, relates to a kind of connection box of electric energy meter analogue means.
Background technology
When the electric energy metrical operating personnel were giveed training, traditional training method was normally carried out the literal explanation, is drawn and describe, and this training method theoretical property is strong but the training of shortage practical operative ability makes result of training not good; In order to overcome the above problems, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of this utility model is the deficiency that lacks at low-voltage electric energy metering operating personnel wiring training tool, thereby a kind of connection box of electric energy meter analogue means of safe and effective, good reliability is provided.
To achieve these goals, the utility model provides a kind of connection box of electric energy meter analogue means, this device comprises computing machine, programmable power supply, terminal box, electric energy meter, current transformer and electric current are kept module, wherein, described computing machine is communicated by letter with described programmable power supply, the voltage signal output end of described programmable power supply connects the voltage signal end of incoming cables of described terminal box, the current signal output end of described programmable power supply is kept module by described electric current, described current transformer connects the current signal end of incoming cables of described terminal box, and described electric energy meter connects the voltage signal terminals and the current signal terminals of described terminal box.
Based on above-mentioned, described electric current is kept module and is comprised that on-load switch, auxiliary reclay, very first time relay, first electric current keep in touch device; Wherein, described on-load switch one end connects described auxiliary reclay one end, and the described on-load switch other end is used to be connected both ends of power with the described auxiliary reclay other end; Described auxiliary reclay normally closed contact one end connects described very first time relay one end, and the described auxiliary reclay normally closed contact other end connects the described on-load switch other end, and the described very first time relay other end connects the described auxiliary reclay other end; Described very first time relay normally closed contact one end connects described first electric current and keeps in touch device one end, the described very first time relay normally closed contact other end connects the described on-load switch other end, and described first electric current keeps in touch the device other end and connects the described auxiliary reclay other end; Described first electric current keeps in touch the current signal output end that device one end is used to connect described programmable power supply, and described first electric current keeps in touch the device other end and is used to connect described current transformer.
Based on above-mentioned, described electric current is kept module and is comprised that also second time relay, the 3rd time relay, second electric current keep in touch device and the 3rd electric current keeps in touch device; Wherein, the two ends of described second time relay, described the 3rd time relay are connected in parallel on the two ends of described very first time relay; Described second time relay normally closed contact, one end connects described second electric current and keeps in touch device one end, described second time relay normally closed contact other end connects the described on-load switch other end, and described second electric current keeps in touch the device other end and connects the described auxiliary reclay other end; Described the 3rd time relay normally closed contact one end connects described the 3rd electric current and keeps in touch device one end, described the 3rd time relay normally closed contact other end connects the described on-load switch other end, and described the 3rd electric current keeps in touch the device other end and connects the described auxiliary reclay other end; Described second electric current keeps in touch the current signal output end that a end that device, the 3rd described electric current keep in touch device is used to connect described programmable power supply, and described second electric current keeps in touch the other end that device, described the 3rd electric current keep in touch device and is used to connect described current transformer.
The utlity model has following advantage: 1, this device uses three-phase programmable power supply analog bus output three-phase and four-line voltage, electric current, and can adjust amplitude, phase place, frequency and the phase sequence of output voltage electric current; 2, this device connects the meritorious and reactive energy-meter of all kinds of three-phase and four-lines by the low-temperature measurement cabinet, can analyze the right and wrong point, and investigate and handle by observing the operation phenomenon.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams that described electric current is kept module.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of connection box of electric energy meter analogue means, this device comprises computing machine 1, programmable power supply 2, terminal box 3, electric energy meter 4, current transformer 5 and electric current are kept module 6, wherein, described computing machine 1 is communicated by letter with described programmable power supply 2 with control programmable power supply 2 output aanalogvoltages, current signal, the voltage signal output end of described programmable power supply 2 connects the voltage signal end of incoming cables of described terminal box 3, the current signal output end of described programmable power supply 2 is kept module 6 by described electric current, described current transformer 5 connects the current signal end of incoming cables of described terminal box 3, and described electric energy meter 4 connects the voltage signal terminals and the current signal terminals of described terminal box 3.
Power frequency supply is input to programmable power supply 2, under the control of computing machine 1, output three-phase four-wire system aanalogvoltage, current signal, wherein, voltage signal is directly received terminal box 3, and current signal is connected to terminal box 3 after excess current is kept module 6, current transformer 5, and terminal box 3 connects electric energy meter 4 and carries out electric energy metrical, wherein, to keep module 6 be in order to ensure programmable power supply 2 electric currents output to electric current.
Computing machine 1 is connected, communicates by letter in the RS485 mode with programmable power supply 2, is used to control different aanalogvoltage, the current signals of programmable power supply 2 outputs; Programmable power supply 2 is connected, communicates by letter with computing machine 1 in the RS485 mode, is used for outside power frequency supply conversion of signals is become voltage, the current signal of simulation, and to experimental provision output voltage, current signal controlled, that meet the different experiments parameter request; Circuit connection end point when terminal box 3 is used for student training links to each other it to carry out real training with the table tail of electric energy meter 4, the operating position when being training; Electric energy meter 4 table tails are connected by the student when training with terminal box 3, are used for the metering of power consumption under the different experiments result; Current transformer 5 is used for the current signal of programmable power supply 2 inputs is carried out outputing on the terminal box 3 for the training use behind the current transformation by programmable power supply 2 input current signals; When electric current was kept module 6 and is used for on-load switch and disconnects, current return kept disconnecting behind the certain hour, gave close current output behind 2 one sections delay times of programmable power supply.
As shown in Figure 2, described electric current is kept module and is comprised that on-load switch KX, auxiliary reclay JZ1, very first time relay J S1, first electric current keep in touch device JF1; Described on-load switch KX is the switch that is used to control described programmable power supply power frequency input; Wherein, described on-load switch KX one end connects described auxiliary reclay JZ1 one end, and the described on-load switch KX other end is used to be connected both ends of power with the described auxiliary reclay JZ1 other end; Described auxiliary reclay JZ1 normally closed contact one end connects described very first time relay J S1 one end, the described auxiliary reclay JZ1 normally closed contact other end connects the described on-load switch KX other end, and the described very first time relay J S1 other end connects the described auxiliary reclay JZ1 other end; Described very first time relay J S1 normally closed contact one end connects described first electric current and keeps in touch device JF1 one end, the described very first time relay J S1 normally closed contact other end connects the described on-load switch KX other end, and described first electric current keeps in touch the device JF1 other end and connects the described auxiliary reclay JZ1 other end; Described first electric current keeps in touch the current signal output end that device JF1 one end is used to connect described programmable power supply, described first electric current keeps in touch the device JF1 other end and is used to connect described current transformer, and described current transformer connects the current signal end of incoming cables of described terminal box 3.
Based on above-mentioned, for three-phase current, described electric current keeps that module also comprises second time relay JS2, the 3rd time relay JS3, second electric current keeps in touch device JF2 and the 3rd electric current keeps in touch device JF3; Wherein, the two ends of described second time relay JS2, described the 3rd time relay JS3 are connected in parallel on the two ends of described very first time relay J S1; Described second time relay JS2 normally closed contact, one end connects described second electric current and keeps in touch device JF2 one end, described second time relay JS2 normally closed contact other end connects the described on-load switch KX other end, and described second electric current keeps in touch the device JF2 other end and connects the described auxiliary reclay JZ1 other end; Described the 3rd time relay JS3 normally closed contact one end connects described the 3rd electric current and keeps in touch device JF3 one end, described the 3rd time relay JS3 normally closed contact other end connects the described on-load switch KX other end, and described the 3rd electric current keeps in touch the device JF3 other end and connects the described auxiliary reclay JZ1 other end; Described second electric current keeps in touch the current signal output end that a end that device JF2, described the 3rd electric current keep in touch device JF3 is used to connect described programmable power supply, described second electric current keeps in touch the other end that device JF2, described the 3rd electric current keep in touch device JF3 and is used to connect described current transformer, and described current transformer connects the current signal end of incoming cables of described terminal box 3; Current transformer herein is a threephase current transformer.
Its principle of work is: the coil of the normally opened contact control auxiliary reclay JZ1 of on-load switch KX, and when closing, on-load switch KX opens the closing of contact often, and auxiliary reclay JZ1 gets, its normally closed contact disconnects, (JS3) coil blackout carries out timing to the time relay for JS1, JS2; Its normally opened contact disconnects when on-load switch KX disconnects, its normally closed contact closure of auxiliary reclay JZ1 dead electricity, the time relay (JS1, JS2, JS3) coil gets electric the time-delay, and corresponding normally closed contact disconnects delay time to the back, and then electric current keeps in touch device (JF1, JF2, JF3) coil losing electricity disconnects; Electric current is set, and to keep the purpose of module 6 be when on-load switch KX is disconnected, and current return will keep just disconnecting behind the certain hour, exports for 2 regular hour of programmable power supply close current.
Claims (3)
1. connection box of electric energy meter analogue means, it is characterized in that: this device comprises computing machine, programmable power supply, terminal box, electric energy meter, current transformer and electric current are kept module, described computing machine is communicated by letter with described programmable power supply, the voltage signal output end of described programmable power supply connects the voltage signal end of incoming cables of described terminal box, the current signal output end of described programmable power supply is kept module by described electric current, described current transformer connects the current signal end of incoming cables of described terminal box, and described electric energy meter connects the voltage signal terminals and the current signal terminals of described terminal box.
2. connection box of electric energy meter analogue means according to claim 1 is characterized in that: described electric current is kept module and is comprised that on-load switch (KX), auxiliary reclay (JZ1), very first time relay (JS1), first electric current keep in touch device (JF1); Wherein, described on-load switch (KX) end connects described auxiliary reclay (JZ1) end, and described on-load switch (KX) other end is used to be connected both ends of power with described auxiliary reclay (JZ1) other end; Described auxiliary reclay (JZ1) normally closed contact one end connects described very first time relay (JS1) end, described auxiliary reclay (JZ1) the normally closed contact other end connects described on-load switch (KX) other end, and described very first time relay (JS1) other end connects described auxiliary reclay (JZ1) other end; Described very first time relay (JS1) normally closed contact one end connects described first electric current and keeps in touch device (JF1) end, described very first time relay (JS1) the normally closed contact other end connects described on-load switch (KX) other end, and described first electric current keeps in touch device (JF1) other end and connects described auxiliary reclay (JZ1) other end; Described first electric current keeps in touch the current signal output end that device (JF1) end is used to connect described programmable power supply, and described first electric current keeps in touch device (JF1) other end and is used to connect described current transformer.
3. connection box of electric energy meter analogue means according to claim 2 is characterized in that: described electric current is kept module and is comprised that also second time relay (JS2), the 3rd time relay (JS3), second electric current keep in touch device (JF2) and the 3rd electric current keeps in touch device (JF3); Wherein, the two ends of described second time relay (JS2), described the 3rd time relay (JS3) are connected in parallel on the two ends of described very first time relay (JS1); Described second time relay (JS2) normally closed contact one end connects described second electric current and keeps in touch device (JF2) end, described second time relay (JS2) the normally closed contact other end connects described on-load switch (KX) other end, and described second electric current keeps in touch device (JF2) other end and connects described auxiliary reclay (JZ1) other end; Described the 3rd time relay (JS3) normally closed contact one end connects described the 3rd electric current and keeps in touch device (JF3) end, described the 3rd time relay (JS3) the normally closed contact other end connects described on-load switch (KX) other end, and described the 3rd electric current keeps in touch device (JF3) other end and connects described auxiliary reclay (JZ1) other end; Described second electric current keeps in touch the current signal output end that a end that device (JF2), described the 3rd electric current keep in touch device (JF3) is used to connect described programmable power supply, and described second electric current keeps in touch the other end that device (JF2), described the 3rd electric current keep in touch device (JF3) and is used to connect described current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202237872U CN201616204U (en) | 2009-09-27 | 2009-09-27 | Wiring analog device for electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202237872U CN201616204U (en) | 2009-09-27 | 2009-09-27 | Wiring analog device for electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616204U true CN201616204U (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202237872U Expired - Fee Related CN201616204U (en) | 2009-09-27 | 2009-09-27 | Wiring analog device for electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941057A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Simulated electric meter box |
| CN105513469A (en) * | 2015-12-28 | 2016-04-20 | 国家电网公司 | Method for simulating measuring point buckling relation of 35kV line |
| CN105894920A (en) * | 2016-04-07 | 2016-08-24 | 国网浙江省电力公司培训中心 | Fault simulation method of using simulation intelligent electric energy meter |
-
2009
- 2009-09-27 CN CN2009202237872U patent/CN201616204U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941057A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Simulated electric meter box |
| CN105513469A (en) * | 2015-12-28 | 2016-04-20 | 国家电网公司 | Method for simulating measuring point buckling relation of 35kV line |
| CN105513469B (en) * | 2015-12-28 | 2018-03-16 | 国家电网公司 | A kind of method of simulation 35kV circuit stoichiometric point hitch relations |
| CN105894920A (en) * | 2016-04-07 | 2016-08-24 | 国网浙江省电力公司培训中心 | Fault simulation method of using simulation intelligent electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20120927 |