CN106199486A - A kind of measurement system of power meter temperature impact test - Google Patents
A kind of measurement system of power meter temperature impact test Download PDFInfo
- Publication number
- CN106199486A CN106199486A CN201610487520.9A CN201610487520A CN106199486A CN 106199486 A CN106199486 A CN 106199486A CN 201610487520 A CN201610487520 A CN 201610487520A CN 106199486 A CN106199486 A CN 106199486A
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- electric energy
- meter
- energy meter
- power source
- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention relates to the measurement system of a kind of power meter temperature impact test, set meter hanging frame in temperature test chamber, meter hanging frame correspondence often row electric energy meter is each equipped with relay, and the method for operation of described relay is controlled by controller；Described power source voltage output end is directly connected to electric energy meter voltage input end, and power source current output terminal is connected to the error instrument in the calibration pulse equal access power source of electric energy meter current input and the electrical energy pulse of electric energy meter output and power source output by relay.The present invention uses original electric energy meter checking device can complete polymorphic type electric energy meter can be with rapid translating when the error-detecting of temperature impact test, so that the temperature accuracy of temperature test chamber and stability are guaranteed, reduce artificial terminal strength, this cover system compensate for the blank of domestic the sector, has good market prospect simultaneously.
Description
Technical field
The present invention relates to electrical energy meter calibration technical field, be specifically related to the measurement system of a kind of power meter temperature impact test
System.
Background technology
The most also do not have special test equipment to test the single-phase of multiple type at present simultaneously or Three-phase electronic is electric
Can the error change situation of the temperature of table electric energy meter when affecting pattern, still use dissimilar electric energy meter to test in batches,
The principle i.e. utilizing standard technique comparison error of measurement is measured, and this method of testing must respectively enter temperature examination to different electric energy meters
Tryoff, respectively wiring, being respectively configured testing scheme, this situation is limited because of the quantity by temperature test chamber, and the working cycle is long
Quality is low, and the temperature inside the box concordance and stability can not be guaranteed, electric energy meter error check system quantity is also restrained, whole
Measure that system wiring is loaded down with trivial details, temperature test chamber utilization rate is the highest, repeatedly open temperature test chamber is unfavorable for temperature control etc., make temperature
Degree affects experimental test data and can not reach accurate, reliable.
Summary of the invention
For the problems referred to above, the present invention provides and a kind of improves the utilization rate of temperature test chamber, reduces artificial terminal strength
The measurement system of power meter temperature impact test.
For solving the problems referred to above, the technical scheme that the present invention takes is: the measurement system of a kind of power meter temperature impact test
System, including power source, controller and temperature test chamber, is provided with in described temperature test chamber for connecting at least two row electricity
Can the meter hanging frame of table, and described meter hanging frame correspondence often row electric energy meter is each equipped with relay, and the method for operation of described relay is subject to
Control in controller；Described power source voltage output end is directly connected to electric energy meter voltage input end, and power source current output terminal leads to
Cross relay be connected to electric energy meter current input and electric energy meter output electrical energy pulse and power source output calibration pulse all connect
Enter the error instrument of power source.
The present invention can examine and determine electric energy meter by mistake according to actual size and the calibrator for watt-hour meter of scene temperature proof box simultaneously
The feature of the quantity of difference, it is provided that a kind of polymorphic type electric energy meter conversion tool meter hanging frame, utilizes this frock can complete multiclass simultaneously
The wiring of type electric energy meter, preheating (making alive), test electric energy meter error respectively.
Supporting computer operating softwares carries out selecting table according to the type of electric energy meter in meter hanging frame, says the word to power source and external
Controller, controller produces corresponding relay control signal and is sent to the relay of meter hanging frame, the internal corresponding relay of meter hanging frame
Device adhesive, meets and selects the electric energy meter of table requirement can apply corresponding voltage, electric current.Power source is as standard source, on meter hanging frame
Electric energy meter as comparing epi-position, compare epi-position simultaneously voltage identical with standard source accesss, electric current, epi-position is compared in collection simultaneously
The standard scale pulse of electrical energy pulse and standard source is compared, the error instrument on standard source calculate electric energy meter in real time in temperature
The actual error of impact test.
While relay adhesive loop electric energy meter is tested, other identical voltages, the electric energy meter of different electric current pass through to continue
Electrical equipment control, now a making alive preheating, when electric energy meter to be tested terminates test, the more different electric current electric energy meter of incision one by one, execute
Add electric current and obtain the actual error of temperature impact test, thus realize the uninterrupted test of polymorphic type electric energy meter.
Described meter hanging frame is three-phase meter hanging frame or single-phase meter hanging frame.According to the inside dimension of temperature test chamber, design two
Money conversion tool meter hanging frame, meter hanging frame divides single-phase electric energy meter conversion tool meter hanging frame and three-phase electric energy meter conversion tool meter hanging frame.
When carrying out single-phase electric energy watch test, electric energy meter is accessed single-phase meter hanging frame, carries out, during three-phase electric energy watch test, electric energy meter is accessed three
Phase meter hanging frame.
Arranging four row single-phase electric energy meters in described single-phase meter hanging frame, often row electric energy meter is all connected and the electric current of single-phase electric energy meter
Input passes through live wire end and the zero line side in a group relay access power source.Often row electric energy meter is all controlled by a group relay
Whether the access of electric current, now four group relaies on pocket watch can be configured to four and select a relay switch boards.
Arranging four row three-phase electric energy meters in described three-phase meter hanging frame, often row electric energy meter is all connected and the electric current of three-phase electric energy meter
Input passes through live wire end and the zero line side in a group relay access power source.Often row electric energy meter is all controlled by a group relay
Whether the access of electric current, now four group relaies on pocket watch can be configured to four and select a relay switch boards.
Described controller may select single-chip microcomputer.
The present invention uses original electric energy meter checking device can complete the polymorphic type electric energy meter error in temperature impact test
Can be with rapid translating during detection, so that the temperature accuracy of temperature test chamber and stability are guaranteed, reduce artificial wiring
Intensity, this cover system compensate for the blank of domestic the sector, has good market prospect simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment；
Fig. 2 is the wiring diagram of embodiment one temperature test chamber；
Fig. 3 is the wiring diagram of embodiment two temperature test chamber.
Detailed description of the invention
Embodiment one
The measurement system of a kind of power meter temperature impact test, as it is shown in figure 1, include providing voltage, electric current for electric energy meter
Power source, single-chip microcomputer and temperature test chamber.Single-phase meter hanging frame it is provided with, in single-phase meter hanging frame in described temperature test chamber
Four row single-phase electric energy meters are set and often row electric energy meter is all connected and the current input terminal of single-phase electric energy meter is connect by a group relay
Entering live wire end and the zero line side of power source, described power source voltage output end is directly connected to electric energy meter voltage input end, four groups
Relay configuration becomes four to select a relay switch boards, and the method for operation of described relay is controlled by single-chip microcomputer.Power source is as mark
Quasi-source, the single-phase electric energy meter on meter hanging frame, as comparing epi-position, compares epi-position voltage identical with standard source access, electric current simultaneously,
The standard scale pulse simultaneously gathering the electrical energy pulse and standard source that compare epi-position is compared, real-time by the error instrument on standard source
Calculate the electric energy meter actual error in temperature impact test.Supporting computer operating softwares is according to the type of electric energy meter in meter hanging frame
Carrying out selecting table, say the word to power source and single-chip microcomputer, single-chip microcomputer produces corresponding relay control signal and is sent to single-phase pocket watch
The relay of frame, the internal corresponding relay adhesive of single-phase meter hanging frame, meet and select the electric energy meter of table requirement can apply corresponding electricity
Pressure, electric current.
As in figure 2 it is shown, be provided with four row, often 6 single-phase electric energy meter series connection of row in single-phase meter hanging frame, and often row all configures one group
Relay；Described power source voltage U is directly connected to No. 1 and No. 3 terminals (i.e. voltage input end) of all single-phase electric energy meters, merit
Rate source live wire end is connected to No. 1 terminals of first electric energy meter of corresponding row by relay, No. 2 terminals of first five electric energy meter
Being connected to No. 1 terminals of next electric energy meter, No. 2 terminals of the 6th electric energy meter are connected to power source zero line by relay
End.While a electric energy meter is tested, other identical voltages, the electric energy meter of different electric current pass through Control, now only
Making alive preheats, and ammeter to be tested terminates to cut during test the electric current of this ammeter again, thus realizes polymorphic type electric energy meter not
It is interrupted test.
Embodiment two
As it is shown on figure 3, be provided with four row, often 3 three-phase electric energy meter series connection of row in three-phase meter hanging frame, and often row all configures one group
Relay；Described power source voltage U is directly connected to all three-phase electric energy meter voltage terminals, power source live wire end A phase, B phase
Communicate relay with C and be connected to the corresponding terminals of first electric energy meter of corresponding row, the corresponding wiring of the 3rd three-phase electric energy meter
End is connected to power source zero line side A phase, B phase and C phase through this row relay.Other are same as in Example 1.
Claims (5)
1. the measurement system of a power meter temperature impact test, it is characterised in that: include power source, controller and temperature examination
Tryoff, is provided with the meter hanging frame for connecting at least two row electric energy meters, and described meter hanging frame is corresponding in described temperature test chamber
Often row electric energy meter is each equipped with relay, and the method for operation of described relay is controlled by controller；Described power source voltage is defeated
Go out end and be directly connected to electric energy meter voltage input end, power source current output terminal by relay be connected to electric energy meter current input and
The electrical energy pulse of electric energy meter output and the error instrument in the calibration pulse equal access power source of power source output.
2. according to the measurement system of claim 1 power meter temperature impact test, it is characterised in that: described meter hanging frame is three
Phase meter hanging frame or single-phase meter hanging frame.
The measurement system of power meter temperature the most according to claim 2 impact test, it is characterised in that: described single-phase pocket watch
Arranging four row single-phase electric energy meters in frame, often row electric energy meter is all connected and the current input terminal of single-phase electric energy meter passes through a group relay
The live wire end in access power source and zero line side.
The measurement system of power meter temperature the most according to claim 2 impact test, it is characterised in that: described three-phase pocket watch
Arranging four row three-phase electric energy meters in frame, often row electric energy meter is all connected and the current input terminal of three-phase electric energy meter passes through a group relay
The live wire end in access power source and zero line side.
5. the measurement system of test is affected according to the power meter temperature described in claim 3 or 4, it is characterised in that: described control
Device processed is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487520.9A CN106199486A (en) | 2016-06-27 | 2016-06-27 | A kind of measurement system of power meter temperature impact test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487520.9A CN106199486A (en) | 2016-06-27 | 2016-06-27 | A kind of measurement system of power meter temperature impact test |
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| CN106199486A true CN106199486A (en) | 2016-12-07 |
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| CN201610487520.9A Pending CN106199486A (en) | 2016-06-27 | 2016-06-27 | A kind of measurement system of power meter temperature impact test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772208A (en) * | 2016-12-30 | 2017-05-31 | 杭州海兴电力科技股份有限公司 | A kind of integrated reliability testing platform of single three-phase meter |
| CN110031792A (en) * | 2019-05-17 | 2019-07-19 | 贵州电网有限责任公司 | Consider the Basic Error of Energy Meter test device and method of temperature and curent change |
| CN113138362A (en) * | 2021-05-11 | 2021-07-20 | 深圳市先行电气技术有限公司 | Calibration method for automatically compensating electric energy metering error of electric energy meter |
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| CN201382998Y (en) * | 2009-04-09 | 2010-01-13 | 华中电网有限公司 | Online monitoring screen for electric energy error of multi-loop electric energy meter |
| CN203324466U (en) * | 2013-05-08 | 2013-12-04 | 广东电网公司电力科学研究院 | Verification system capable of verifying multiple electric-energy meters with different current specifications at the same time |
| CN104267369A (en) * | 2014-08-01 | 2015-01-07 | 云南电力试验研究院（集团）有限公司电力研究院 | Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system |
| CN105607027A (en) * | 2015-12-17 | 2016-05-25 | 郑州三晖电气股份有限公司 | High-low temperature weather effect testing device for electric energy meter |
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2016
- 2016-06-27 CN CN201610487520.9A patent/CN106199486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382998Y (en) * | 2009-04-09 | 2010-01-13 | 华中电网有限公司 | Online monitoring screen for electric energy error of multi-loop electric energy meter |
| CN203324466U (en) * | 2013-05-08 | 2013-12-04 | 广东电网公司电力科学研究院 | Verification system capable of verifying multiple electric-energy meters with different current specifications at the same time |
| CN104267369A (en) * | 2014-08-01 | 2015-01-07 | 云南电力试验研究院（集团）有限公司电力研究院 | Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system |
| CN105607027A (en) * | 2015-12-17 | 2016-05-25 | 郑州三晖电气股份有限公司 | High-low temperature weather effect testing device for electric energy meter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772208A (en) * | 2016-12-30 | 2017-05-31 | 杭州海兴电力科技股份有限公司 | A kind of integrated reliability testing platform of single three-phase meter |
| CN106772208B (en) * | 2016-12-30 | 2023-11-28 | 杭州海兴电力科技股份有限公司 | Single three-phase meter integrated reliability test board |
| CN110031792A (en) * | 2019-05-17 | 2019-07-19 | 贵州电网有限责任公司 | Consider the Basic Error of Energy Meter test device and method of temperature and curent change |
| CN113138362A (en) * | 2021-05-11 | 2021-07-20 | 深圳市先行电气技术有限公司 | Calibration method for automatically compensating electric energy metering error of electric energy meter |
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