CN204374405U - Electric power meter field-checking three-phase simulation load device - Google Patents
Electric power meter field-checking three-phase simulation load device Download PDFInfo
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- CN204374405U CN204374405U CN201520074837.0U CN201520074837U CN204374405U CN 204374405 U CN204374405 U CN 204374405U CN 201520074837 U CN201520074837 U CN 201520074837U CN 204374405 U CN204374405 U CN 204374405U
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- 238000004088 simulation Methods 0.000 title claims abstract description 117
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of electric power meter field-checking three-phase simulation load device, comprise three-phase simulation load, described three-phase simulation load is three groups of telefaults, often organizes telefault and is wrapped on the cylindrical plunger of; And for the electric power meter of the electric energy size that detects three-phase simulation load; And for connecting the connecting line between three-phase simulation load and electric power meter; And for switching the switch of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply; And in order to the pilot lamp of instruction simulation load.The utility model ensure that substation line bringing onto load runs the safe, accurate of rear measuring apparatus and reliability service; The utility model compact, easy to carry, flexibly practical.
Description
Technical field
The utility model belongs to Electric Energy Metering Technology field, is specifically related to a kind of electric power meter field-checking three-phase simulation load device.
Background technology
In practical application, usual employing electric power meter on-site calibrator carries out the wiring check of electric energy metering secondary, electric energy metering secondary wiring check and judgement can need be carried out with when load at electric energy meter, therefore power transmission cannot to complete wiring check in charged situation the same day, need wait until that circuit is with after load, wiring check is done at scene of again arriving.If fail to find mistake by wiring check in time, occur security incident or economic accident, the consequence caused is by hardly imaginable.For guaranteeing the safe operation of electrical network and metering accurately and reliably, before carrying out circuit on-load, connection box of electric energy meter inspection is very important.
According to the measuring principle of electric energy meter field check meter, no matter three-phase three-wire electric energy meter or three-phase and four-line electric energy meter, connection box of electric energy meter inspection is carried out to utilize electric power meter on-site calibrator, the circuit that electric energy meter measures must with certain load, consider the no-load running situation after newly-built transformer station power transmission, only adopt electric power meter on-site calibrator cannot complete zero load circuit electric energy meter wiring check.
Utility model content
In order to solve the problem, the utility model provides a kind of electric power meter field-checking three-phase simulation load device.
For achieving the above object, the utility model is by the following technical solutions:
A kind of electric power meter field-checking three-phase simulation load device, comprise three-phase simulation load, described three-phase simulation load is three groups of telefaults, often organizes telefault and is wrapped on the cylindrical plunger of; And for the electric power meter of the electric energy size that detects three-phase simulation load; And for connecting the connecting line between three-phase simulation load and electric power meter; And for switching the switch of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply; And in order to the pilot lamp of instruction simulation load.
The described connecting line for connecting between three-phase simulation load and electric power meter, comprise the voltage connecting wire of three-phase simulation load current extension line and three-phase simulation load, the voltage connecting wire of described three-phase simulation load is connected to the voltage port of electric power meter, and described three-phase simulation load current extension line is connected to the electric current port of electric power meter.
Described electric power meter is three-phase three-wire electric energy meter.
Described pilot lamp is serially connected on the three-phase simulation load current extension line between three-phase simulation load current extraction port and the electric current port of electric power meter.
Described three-phase simulation load current extension line is the some strands of copper conductors be wrapped on telefault.
Described cylindrical plunger is hollow cylinder iron core.
A kind of electric power meter field-checking three-phase simulation load device, comprise three-phase simulation load, described three-phase simulation load is three groups of telefaults, often organizes telefault and is wrapped on the cylindrical plunger of; And for the electric power meter of the electric energy size that detects three-phase simulation load; And for connecting the connecting line between three-phase simulation load and electric power meter; And for switching the switch of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply; And in order to the pilot lamp of instruction simulation load; Described electric power meter is three-phase and four-line electric energy meter.
The described connecting line for connecting between three-phase simulation load and electric power meter, comprises three-phase simulation load current extension line, the voltage connecting wire of three-phase simulation load and the zero line extension line of three-phase simulation load; The voltage connecting wire of described three-phase simulation load is connected to the voltage port of electric power meter, described three-phase simulation load current extension line is connected to the electric current port of electric power meter, and the zero line extension line of three-phase simulation load is connected to the zero line port of electric power meter.
Described pilot lamp is serially connected on the three-phase simulation load current extension line between three-phase simulation load current extraction port and the electric current port of electric power meter.
Described three-phase simulation load current extension line is the some strands of copper conductors be wrapped on telefault.
The beneficial effects of the utility model are:
The electric power meter field-checking three-phase simulation load device that the utility model proposes, simulation threephase load is added when the electric power meter of transformer station does not have load, coordinate practicality with existing electric energy meter on-site calibrator, wiring check is carried out to electric power meter; Ensure that substation line bringing onto load runs safe, accurate, the reliability service of rear measuring apparatus; The utility model compact, easy to carry, flexibly practical.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model;
Fig. 2 is phase three-wire three fictitious load device wiring diagram of the present utility model;
Fig. 3 is three-phase and four-line fictitious load device wiring diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
As shown in Figure 1, a kind of electric power meter field-checking three-phase simulation load device, comprise three-phase simulation load, described three-phase simulation load is three groups of telefaults L1, L2 and L3, often organizes telefault and is wrapped on the hollow cylinder iron core of; And for the electric power meter of the electric energy size that detects three-phase simulation load; And for connecting the connecting line between three-phase simulation load and electric power meter; And for switching K switch 1, K2 and K3 of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply respectively; And in order to pilot lamp HL1, HL2 and HL3 of instruction simulation load; Described electric power meter is electric energy meter.
Described often group telefault size is 0.154H; K switch 1, K2, K3 of carrying out load switching are set according to required fictitious load size; The voltage connecting wire of described fictitious load is the sub-thread copper conductor be connected with electric energy meter tail voltage port, and described three-phase current extension line is the multiply copper conductor be wrapped on telefault; Described pilot lamp HL1, HL2, HL3 are three of arranging corresponding to threephase load, pilot lamp HL1 series connection A phase current extension line, pilot lamp HL2 series connection B phase current extension line, and pilot lamp HL3 series connection C phase current extension line, in order to indicate the size of switching load.
Figure 2 shows that the phase three-wire three fictitious load device wiring diagram of utility model.The A phase current lead-in wire of three-phase simulation load device connects electric energy meter A phase current port; The C phase current lead-in wire of three-phase simulation load device connects electric energy meter C phase current port; The A phase voltage lead-in wire of three-phase simulation load device connects electric energy meter A phase voltage port; The C phase voltage lead-in wire of three-phase simulation load device connects electric energy meter C phase voltage port; The N phase voltage lead-in wire of three-phase simulation load device connects electric energy meter B phase voltage port.
Figure 3 shows that the three-phase and four-line fictitious load device wiring diagram of utility model.The A phase current lead-in wire of three-phase simulation load device connects electric energy meter A phase current port; The B phase current lead-in wire of three-phase simulation load device connects electric energy meter B phase current port; The C phase current lead-in wire of three-phase simulation load device connects electric energy meter C phase current port; The A phase voltage lead-in wire of three-phase simulation load device connects electric energy meter A phase voltage port; The B phase voltage lead-in wire of three-phase simulation load device connects electric energy meter B phase voltage port; The C phase voltage lead-in wire of three-phase simulation load device connects electric energy meter C phase voltage port; The N phase terminal of three-phase simulation load device connects electric energy meter N phase port.
The N phase of described three-phase simulation load device is the zero line of three-phase simulation load device.
Three-phase three-wire electric energy meter phase voltage is 57.7V, and three-phase and four-line electric energy meter phase voltage is 220V, and for ensureing sensitivity and the security of the verification of three-phase simulation load device, the rated voltage of fictitious load device is 300V, and bearing power is 3kW.
Electric power meter field-checking three-phase simulation load device of the present utility model uses step as follows:
(1) according to connection box of electric energy meter mode, determine the mode of connection of three-phase simulation load device, the voltage port of three-phase simulation load device and electric current port are connected to electric energy meter voltage port and electric current port successively; Selector switch K1, K2 and K3 are got to a point position;
(2) according to practical operation situation, threephase load is connected work by selector switch K1, K2 and K3, and selector switch has three class: zero load, semi-load, entirely carry, and checks that whether pilot lamp work normal, confirm normal after start field-checking work;
(3) after field-checking terminates, first should disconnect the input of electric energy meter voltage, check whether three-phase simulation load device pilot lamp extinguishes, after lamp to be instructed extinguishes, can off voltage electric current connecting line, power cut-off.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (10)
1. an electric power meter field-checking three-phase simulation load device, is characterized in that, comprise three-phase simulation load, and described three-phase simulation load is three groups of telefaults, often organizes telefault and is wrapped on the cylindrical plunger of; And
For detecting the electric power meter of the electric energy size of three-phase simulation load; And
For connecting the connecting line between three-phase simulation load and electric power meter; And
For switching the switch of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply; And
In order to the pilot lamp of instruction simulation load.
2. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 1, it is characterized in that, the described connecting line for connecting between three-phase simulation load and electric power meter, comprise the voltage connecting wire of three-phase simulation load current extension line and three-phase simulation load, the voltage connecting wire of described three-phase simulation load is connected to the voltage port of electric power meter, and described three-phase simulation load current extension line is connected to the electric current port of electric power meter.
3. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 2, it is characterized in that, described electric power meter is three-phase three-wire electric energy meter.
4. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 1, it is characterized in that, described pilot lamp is serially connected on the three-phase simulation load current extension line between three-phase simulation load current extraction port and the electric current port of electric power meter.
5. a kind of electric power meter field-checking three-phase simulation load device as described in claim 2 or 4, it is characterized in that, described three-phase simulation load current extension line is the some strands of copper conductors be wrapped on telefault.
6. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 1, it is characterized in that, described cylindrical plunger is hollow cylinder iron core.
7. an electric power meter field-checking three-phase simulation load device, is characterized in that, comprise three-phase simulation load, and described three-phase simulation load is three groups of telefaults, often organizes telefault and is wrapped on the cylindrical plunger of; And
For detecting the electric power meter of the electric energy size of three-phase simulation load; And
For connecting the connecting line between three-phase simulation load and electric power meter; And
For switching the switch of three-phase simulation load, it is serially connected with between three-phase simulation load and three-phase supply; And
In order to the pilot lamp of instruction simulation load; Described electric power meter is three-phase and four-line electric energy meter.
8. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 7, it is characterized in that, the described connecting line for connecting between three-phase simulation load and electric power meter, comprises three-phase simulation load current extension line, the voltage connecting wire of three-phase simulation load and the zero line extension line of three-phase simulation load; The voltage connecting wire of described three-phase simulation load is connected to the voltage port of electric power meter, described three-phase simulation load current extension line is connected to the electric current port of electric power meter, and the zero line extension line of three-phase simulation load is connected to the zero line port of electric power meter.
9. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 7, it is characterized in that, described pilot lamp is serially connected on the three-phase simulation load current extension line between three-phase simulation load current extraction port and the electric current port of electric power meter.
10. a kind of electric power meter field-checking three-phase simulation load device as claimed in claim 8 or 9, it is characterized in that, described three-phase simulation load current extension line is the some strands of copper conductors be wrapped on telefault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074837.0U CN204374405U (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking three-phase simulation load device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074837.0U CN204374405U (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking three-phase simulation load device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374405U true CN204374405U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520074837.0U Expired - Fee Related CN204374405U (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking three-phase simulation load device |
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| CN (1) | CN204374405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614698A (en) * | 2015-02-03 | 2015-05-13 | 国家电网公司 | Three-phase analogue loader for field calibration of energy measurement device |
| CN111415559A (en) * | 2020-05-28 | 2020-07-14 | 广东电网有限责任公司培训与评价中心 | Series-type low-voltage three-phase four-wire electric energy metering simulation wiring training cabinet |
-
2015
- 2015-02-03 CN CN201520074837.0U patent/CN204374405U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614698A (en) * | 2015-02-03 | 2015-05-13 | 国家电网公司 | Three-phase analogue loader for field calibration of energy measurement device |
| CN104614698B (en) * | 2015-02-03 | 2017-12-29 | 国家电网公司 | Electric power meter field-checking loads device with three-phase simulation |
| CN111415559A (en) * | 2020-05-28 | 2020-07-14 | 广东电网有限责任公司培训与评价中心 | Series-type low-voltage three-phase four-wire electric energy metering simulation wiring training cabinet |
| CN111415559B (en) * | 2020-05-28 | 2022-03-29 | 广东电网有限责任公司培训与评价中心 | Series-type low-voltage three-phase four-wire electric energy metering simulation wiring training cabinet |
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| Date | Code | Title | Description |
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| 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: 20150603 Termination date: 20160203 |