CN202083791U - Checking load of three-phase four-wire electric energy meter - Google Patents
Checking load of three-phase four-wire electric energy meter Download PDFInfo
- Publication number
- CN202083791U CN202083791U CN2011201892826U CN201120189282U CN202083791U CN 202083791 U CN202083791 U CN 202083791U CN 2011201892826 U CN2011201892826 U CN 2011201892826U CN 201120189282 U CN201120189282 U CN 201120189282U CN 202083791 U CN202083791 U CN 202083791U
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- electric energy
- energy meter
- load
- hair
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- Expired - Fee Related
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000012795 verification Methods 0.000 description 17
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Cleaning And Drying Hair (AREA)
Abstract
The utility model provides a checking load of a three-phase four-wire electric energy meter, which is characterized by consisting of three blowers, wherein zero lines of the three blowers are connected together, and power lines of the three blowers are connected with a three-phase air switch. The load has the effects that: 1. the production or the life of a family to be checked is not influenced when the three-phase four-wire electric energy meter is checked without powering off; 2. the three-phase four-wire electric energy meter can be conveniently and quickly checked within 5 minutes, and the difference between the error of the checking electric energy meter and the error checked by a checking room is less than or equal to +/-5% which is within the range of the allowable error range; 3. the checking load is fast in heat dissipation and free of potential safety hazard; and 4. the device is simple to produce, convenient to carry, and economical and practical.
Description
Technical field: the utility model relates to a kind of device that is used for verification three-phase and four-line electric energy meter, particularly a kind of three-phase and four-line electric energy performance school load that is used for field-checking three-phase and four-line electric energy meter.
Background technology: have now the three-phase and four-line electrical energy meter calibration is carried out in the calibration chamber mostly, after pulling down from the scene, electric energy meter that promptly will verification delivers to the verification of calibration chamber, this not only wants the electricity consumer of the electric energy meter region within the jurisdiction of verification to have a power failure to this, make produce, life is impaired, and waste time and energy; Though also being arranged, the part electric energy meter takes on-the-spot method of standard table verification, but used verification load is selected from electricity consumer mostly, the load of selecting is not because of through proofreading, indicate that power is difficult to conform to real power, this makes field-checking can occur than mistake, and still will have a power failure during verification, required time is wanted 2～3 hours; In addition, some loads in the verification can produce bigger heat, as electric furnace, not only influences the verification environment, and potential safety hazard, going along with also inconvenient is arranged.
Summary of the invention: the purpose of this utility model is, at existing to the three-phase and four-line electrical energy meter calibration in use exist consuming time long, to production, the life of wanting verification electric energy meter region within the jurisdiction electricity consumer impact, the field test error is big not enough, and propose a kind of realize on-the-spot consuming time less, error three-phase and four-line electric energy little, that make things convenient for verification three-phase and four-line electric energy meter shows the school load.
Can realize the purpose of this utility model by following technical proposals, a kind of three-phase and four-line electric energy performance school load is characterized in that it is made up of three hair-dryers, and the zero line of hair-dryer connects, and live wire connects the three-phase air switch.
For making this device easy to carry and use, three hair-dryers are located in the casing with cover, and the blowing mouth of hair-dryer is outside casing.
For ease of control, the three-phase air switch is located on the lateral wall of casing.
The lead that is used to be electrically connected is 3.5～4.5mm
2Sub-thread copper core insulation lead.
The rated voltage of hair-dryer is that 220V, power are 1000～3000W.
Effect of the present utility model is: need not when 1, checking the three-phase and four-line electric energy meter to have a power failure, can not have any impact to production or the life that is subjected to the verification family; 2, convenient, fast, a three-phase and four-line ammeter of verification time≤5 minute, the error of the error of verification ammeter and the verification of calibration chamber differs≤and ± 5%, in the permissible error scope; 3, rapid heat dissipation, no potential safety hazard; 4, device is made simple, easy to carry, economical and practical.
Below in conjunction with embodiment and accompanying drawing the utility model is further set forth:
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is a circuit diagram of the present utility model.
Embodiment:
Referring to accompanying drawing 1,2 one kind of three-phase and four-line electric energy performance school load, it mainly is made up of three hair-dryers 1, casing with cover 2, three-phase air switch 3, and the zero line of hair-dryer 1 connects through lead 4, and live wire connects the contact of three-phase air switch 3 through lead 4; Three-phase air switch 3 other contacts connect extension line 5.For making this device easy to carry and use, three hair-dryers 1 are located in the casing 2 with cover, and the blowing mouth of hair-dryer 1 is outside casing.For ease of control, three-phase air switch 3 is located on the lateral wall of casing 2 with cover.The lead 4 that is used to be electrically connected is 3.5～4.5mm
2Sub-thread copper core insulation lead.The rated voltage of hair-dryer 1 is that 220V, power are 1000～3000W.
The operation of this device is: three extension lines 5 are inserted respectively in the three-phase and four-line electric energy meter of required verification, close and close three-phase air switch 3, three hair-dryer 1 runnings, the revolution of range estimation three-phase and four-line electric energy meter in the unit interval, by calculating, whether the three-phase and four-line electric energy meter that can draw institute's verification exists error.
Claims (5)
1. a three-phase and four-line electric energy performance school load is characterized in that it is made up of three hair-dryers, and the zero line of hair-dryer connects, and live wire connects the three-phase air switch.
2. by the described three-phase and four-line electric energy of claim 1 performance school load, it is characterized in that three hair-dryers are located in the casing with cover, the blowing mouth of hair-dryer is outside casing.
3. by the described three-phase and four-line electric energy performance of claim 1 school load, it is characterized in that the three-phase air switch is located on the lateral wall of casing.
4. by the described three-phase and four-line electric energy performance of claim 1 school load, it is characterized in that the lead that is used to be electrically connected is 3.5～4.5mm
2Sub-thread copper core insulation lead.
5. by claim 1 or 2 or 3 or 4 described three-phase and four-line electric energy performance school loads, it is characterized in that the rated voltage of hair-dryer is that 220V, power are 1000～3000W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201892826U CN202083791U (en) | 2011-06-03 | 2011-06-03 | Checking load of three-phase four-wire electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201892826U CN202083791U (en) | 2011-06-03 | 2011-06-03 | Checking load of three-phase four-wire electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083791U true CN202083791U (en) | 2011-12-21 |
Family
ID=45344415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201892826U Expired - Fee Related CN202083791U (en) | 2011-06-03 | 2011-06-03 | Checking load of three-phase four-wire electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054111A (en) * | 2016-07-12 | 2016-10-26 | 国网山东省电力公司青岛供电公司 | Portable load device |
-
2011
- 2011-06-03 CN CN2011201892826U patent/CN202083791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054111A (en) * | 2016-07-12 | 2016-10-26 | 国网山东省电力公司青岛供电公司 | Portable load device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GANXI POWER SUPPLY BRANCH OF STATE GRID JIANGXI EL Effective date: 20141020 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: JIANGXI GANXI POWER SUPPLY COMPANY Effective date: 20141020 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 338000 XINYU, JIANGXI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141020 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: GANXI POWER SUPPLY BRANCH, STATE GRID JIANGXI ELECTRIC POWER CO., LTD. Address before: 338000 No. 279 Shengli North Road, Jiangxi, Xinyu Patentee before: JIANGXI GANXI POWER SUPPLY COMPANY |
|
| 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: 20111221 Termination date: 20180603 |