CN104515956B - A kind of intelligent electric energy meter power module detection method and device - Google Patents
A kind of intelligent electric energy meter power module detection method and device Download PDFInfo
- Publication number
- CN104515956B CN104515956B CN201410449842.5A CN201410449842A CN104515956B CN 104515956 B CN104515956 B CN 104515956B CN 201410449842 A CN201410449842 A CN 201410449842A CN 104515956 B CN104515956 B CN 104515956B
- Authority
- CN
- China
- Prior art keywords
- voltage
- power module
- measured
- module
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 31
- 230000003862 health status Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 26
- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a kind of intelligent electric energy meter power module detection method and device, it is related to electric instrument technical field, solves technical problem less efficient when being detected in the prior art to the power module of intelligent electric energy meter.Wherein this method can be detected to the power module to be measured of multiple intelligent electric energy meters simultaneously, for any power module to be measured, including：Input voltage is provided for the power module to be measured of access；By the power module to be measured because the output voltage produced by the input voltage is loaded into load circuit；Gather the voltage x current data in the load circuit, and according to the voltage x current Data Detection power module to be measured health status.
Description
Technical field
The present invention relates to electric instrument technical field, more particularly to a kind of intelligent electric energy meter power module detection method and dress
Put.
Background technology
Current China is very big to intelligent electric energy meter quantity required.Inside present intelligent electric energy meter, modularization is all used substantially
Mentality of designing, therefore power module is one of them indispensable part.With the extensive application of power module, power module
Reliably working directly determine the reliably working of intelligent electric energy meter.However, in process of production, the sampling to power module is examined
Test generally using manual testing's output voltage, adjustment load, test is just produced after passing through.
But, this artificial mode detected to power module in the prior art, at least in the presence of following technical problem：
1st, power module is as the Primary Component in intelligent electric meter, and he is related to the steady operation and normal electricity of system
Metering.Using the way that manually detects before ammeter is produced, and each, the load of power module and the test of overload be sometimes
Between require, so be extremely difficult in the case of manually-operated inspect by random samples quantitative requirement.
2nd, due to using the method manually inspected by random samples.So 1 power module can only be tested every time.So to reach requirement
Inspect quantity by random samples, it is necessary to time can relatively many or increase test human hand.Add employment cost and time cost.
3rd, the test to power module is carried out at normal temperatures.It can not realize in the range of desired total temperature to power supply
Module is tested.
4th, design in itself and is not known about due to tester, so it is undesirable and remember to test out power module
Record, can not form positioning problems.This causes to need power module again to not meeting requirement of dispatching from the factory during maintenance
Tested comprehensively.Add the cycle of reprocessing.
The content of the invention
In order to solve manually to detect that inefficiency caused by power module, cost be high, problem is without legal in the prior art
The technical problems such as position, the present invention proposes a kind of intelligent electric energy meter power module detection method and device.
A kind of intelligent electric energy meter power module detection method, while being carried out to the power module to be measured of multiple intelligent electric energy meters
Detection, for any power module to be measured, including：
Input voltage is provided for the power module to be measured of access；
By power module to be measured because the output voltage produced by input voltage is loaded into load circuit；
The voltage x current data in load circuit are gathered, and according to the health of voltage x current Data Detection power module to be measured
Situation.
Preferably, the voltage x current data in collection load circuit, and according to voltage x current Data Detection power supply mould to be measured
The health status of block, is specifically included：
Gather voltage ripple frequency and current ripples frequency in load circuit；
Switching frequency is calculated according to voltage ripple frequency and current ripples frequency；
According to known switching frequency and the switching frequency that calculates determine power module to be measured voltage ripple frequency and
Whether whether normal and on-off circuit is normal for current ripples frequency.
Preferably, the voltage x current data in collection load circuit, and according to voltage x current Data Detection power supply mould to be measured
The health status of block, is also specifically included：
Gather the output voltage of load circuit；
Power supply to be measured is determined according to voltage ripple frequency and the whether normal situation of current ripples frequency and output voltage
Whether the input circuit of module is normal.
Preferably, the voltage x current data in collection load circuit, and according to voltage x current Data Detection power supply mould to be measured
The health status of block, is specifically included：
Gather the voltage under given load value in load circuit；
Power module to be measured is determined according to the assigned voltage under the voltage and given load value under the given load value of collection
Load regulation circuit it is whether normal.
Preferably, this method also includes：Export the health status of power module to be measured.
Preferably, before input voltage is provided for the power module to be measured of access, this method also includes power supply mould to be measured
Block is placed in environment temperature regulating box.
A kind of intelligent electric energy meter power module detection means, while being carried out to the power module to be measured of multiple intelligent electric energy meters
Detection, for any power module to be measured, including：
Interface module, for providing input voltage for the power module to be measured of access；
Load regulation module, for power module to be measured is electric because the output voltage produced by input voltage is loaded into load
Road；
Acquisition module, for gathering the voltage x current data in load circuit；
Control module, for the health status according to voltage x current Data Detection power module to be measured.
Preferably, acquisition module, with for gathering voltage ripple frequency and current ripples frequency in load circuit；
Control module, specifically for calculating switching frequency according to voltage ripple frequency and current ripples frequency；And according to
The switching frequency known and the switching frequency calculated determine that the voltage ripple frequency and current ripples frequency of power module to be measured are
Whether no normal and on-off circuit is normal.
Preferably, acquisition module, is additionally operable to gather the output voltage of load circuit；
Control module, is additionally operable to according to voltage ripple frequency and the whether normal situation of current ripples frequency and output electricity
Pressure determines whether the input circuit of power module to be measured is normal.
Preferably, acquisition module, is additionally operable to gather the voltage in load circuit under given load value；
Control module, the assigned voltage being additionally operable under the voltage and given load value under the given load value according to collection is true
Whether the load regulation circuit of fixed power module to be measured is normal.
Preferably, in addition to：Communication module, the health status for exporting power module to be measured.
The such scheme that the present embodiment is provided can carry out multiple power module measurements, the suitable sampling observation for producing product in batches simultaneously
Scheme.And sampled by the output to power supply, orient power module to be measured according to the voltage x current data collected
Where problem, therefore it can greatly shorten the time that the later stage reprocesses there is provided the technique effect of operating efficiency.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is single channel control principle in a kind of intelligent electric energy meter power module detection method that the embodiment of the present invention 1 is provided
Schematic diagram；
Fig. 2 is a kind of intelligent electric energy meter power module detection method flow chart that the embodiment of the present invention 1 is provided；
Fig. 3 is a kind of structure chart for intelligent electric energy meter power module detection means that the embodiment of the present invention 2 is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.Also, following embodiment is the alternative of the present invention, embodiment
Put in order and the numbering of embodiment is unrelated with the order that it preferably is carried out.
Embodiment 1
There is provided a kind of intelligent electric energy meter power module detection method, this method for schematic diagram shown in the present embodiment combination Fig. 1
It is adapted to be deployed in intelligent electric energy meter power module detection means, and the electricity to be measured that the device can simultaneously to multiple intelligent electric energy meters
Source module is detected.This method is described exemplified by for one of them power module to be measured below, as shown in Fig. 2 including：
101, provide input voltage for the power module to be measured of access；
" intelligent electric energy meter power module detection means " is started by button, after device starts, controller can be according to thing
The program first set opens the test access of 1~8 drive test examination.Often open and corresponding show just occurs on the examination of 1 drive test, liquid crystal display
Show.As shown in figure 1, after test starts, by key-press input, the 220V for setting the device output interface that road power module connects
It is logical.After connection, corresponding power module to be measured connects 220V.Power module to be measured obtain it is electric after work, the output of power module is drawn
Pin can form corresponding output voltage.
In order to realize that the progress in the range of total temperature is detected, in the preferred scheme of the present embodiment, be additionally included in 101 it
Before, power module to be measured is placed in environment temperature regulating box, and then obtain and can be surveyed under the environment temperature of various settings
The technique effect of examination.Power module to be measured is put into environment temperature regulating box, test temperature is put into temperature adjustment.First will
On intelligent electric energy meter power module detection means access civil power 220V, the input of power module is then accessed into detection means
" output interface ".It is corresponding " input interface " that the output of power module accesses the device, notes each power module access to be measured
The position of " output " and " input " is consistent.
102, by the power module to be measured because the output voltage produced by the input voltage is loaded into load circuit；
Intelligent electric energy meter power module detection means in the present embodiment includes the load regulation of an adjustable load value
Circuit, to detect the output situation of power module under different loads, in addition, can also measure the load capacity of power module.
Because of input voltage, so the output end of power module to be measured produces output voltage, output voltage is accessed
After load, the size of access load is adjusted by load regulation circuit, so as to realize to the automatic of power module to be measured
Change detection.
103, the voltage x current data in the load circuit are gathered, and treated according to the voltage x current Data Detection
Survey the health status of power module.
The health status is the various testing results that power module is obtained in detection process, and such as where is power module
It is problematic, it is necessary to emphasis detect；The ripple frequency of power module, load capacity etc..
Specifically, 103 it can realize in the following way：
Gather voltage ripple frequency and current ripples frequency in the load circuit；According to the voltage ripple frequency and institute
State current ripples frequency and calculate switching frequency；Treated according to being determined known switching frequency and the switching frequency calculated
Whether whether normal and on-off circuit is normal for the voltage ripple frequency and current ripples frequency of survey power module.
For example, in test process, by Sampling techniques, the voltage line that a large amount of collection power modules are exported after overload
The frequency of ripple and current ripples.By the way that voltage, the progress Fourier analysis of current ripples frequency can be calculated Switching Power Supply and be opened
Close frequency.Because the switching frequency that the exchange used in power module turns direct current is known, so by that will divide through Fourier
Analyse the switching frequency drawn to be compared with known switching frequency, it is known that voltage, the current ripples of power module output
Whether frequency is normal.If surveying ripple frequency and design frequency deviation being larger, power switch circuit part can be diagnosed to be
It is problematic.Emphasis is needed to detect.
Further, the output voltage of the load circuit can also be gathered；According to the voltage ripple frequency and the electricity
Whether just the whether normal situation of flow liner wave frequency rate and the output voltage determine the input circuit of the power module to be measured
Often.
For example in test process, it is not inconsistent if tested out in specified 220V input excursion interior power module outputs
Close and require, and ripple is normal, then can be diagnosed to be power module input circuit problematic, it is necessary to emphasis detection.
Further, the voltage in collection load circuit under given load value；
Determined according to the assigned voltage under the voltage and given load value under the given load value of collection described to be measured
Whether the load regulation circuit of power module is normal.
For example in test process, if the Voltage Drop tested out in given load value is larger, it can be diagnosed to be
Power module load regulation partial circuit is problematic, it is necessary to which emphasis is detected.
In preferred scheme, the method that the present embodiment is provided also includes：Export the health status of the power module to be measured.
For example after a test, test result can be contrasted with pass result, formed whether qualified report, Ke Yitong
Cross communication interface export.This report includes power module numbering to be measured, test condition, is gone wrong under which test condition
The contents such as which position of power module are monitored with emphasis.
The method that the present embodiment is provided is loaded on power module to be measured by using control 220V, when 220V is switched on
Afterwards, power module to be measured just has input voltage.Power module to be measured obtain it is electric after work, output pin can form corresponding output
Voltage.After output voltage access load, the voltage is acquired and realized with the mode for carrying measurement voltage to electricity to be measured
The automatic measurement of source module.The index such as ripple, load capacity of power module is also measured simultaneously simultaneously.Therefore it can obtain such as
Lower beneficial effect：
1st, the power module part of intelligent electric energy meter is measured at a temperature of full ambient engine, so than original in normal temperature
Test screen is more directly, reliably.Realize and people is freed from frequently working using the means of intelligent test, survey
Examination personnel are without frequently changing, waiting power module test event.
2nd, the device can simultaneously be worked with multiple.So staff, which only needs to observe after disposably connecting, goes to carry out it again
His work, the Qualification of test can be recorded automatically.Meanwhile, reduce the requirement to tester.
3rd, test result can provide guiding opinion to reprocessing for power module, reduce maintenance time.
4th, efficiency is significantly improved, and once multiple power modules can be checked.Increase the quantity of the sample of sampling observation.Must
It is when wanting, this device is used in parallel, it can effectively reduce the product quality caused by the quality reason due to power module and ask
Topic.
Embodiment 2
Realized for the ease of the method in embodiment 1, the present embodiment provides a kind of intelligent electric energy meter power module detection dress
Put, the device can be detected to the power module to be measured of multiple intelligent electric energy meters simultaneously, as shown in figure 3, mainly including：Interface
Module 21, load regulation module 22, acquisition module 23, control module 24.
Interface module 21, for providing input voltage for the power module to be measured of access；
Load regulation module 22, for providing load value adjustable load circuit, and by power module to be measured because of input
Output voltage produced by voltage is loaded into load circuit；
Acquisition module 23, for gathering the voltage x current data in load circuit；
Control module 24, for the health status according to voltage x current Data Detection power module to be measured.
Preferably, acquisition module 23, with for gathering voltage ripple frequency and current ripples frequency in load circuit；
Control module 24, specifically for calculating switching frequency according to voltage ripple frequency and current ripples frequency；And according to
Known switching frequency and the switching frequency calculated determine the voltage ripple frequency and current ripples frequency of power module to be measured
Whether whether normal and on-off circuit is normal.
Preferably, acquisition module 23, are additionally operable to gather the output voltage of load circuit；
Control module 24, is additionally operable to according to voltage ripple frequency and the whether normal situation of current ripples frequency and output
Voltage determines whether the input circuit of power module to be measured is normal.
Preferably, acquisition module 23, are additionally operable to gather the voltage in load circuit under given load value；
Control module 24, is additionally operable to the assigned voltage under the voltage and given load value under the given load value according to collection
Determine whether the load regulation circuit of power module to be measured is normal.
Preferably, the device also includes：Communication module 25, the health status for exporting power module to be measured.
The device that the present embodiment is provided is acquired after the output voltage access load of power module to be measured to the voltage
And the mode with load measurement voltage realizes the automatic measurement to power module to be measured.Therefore it can obtain in full ambient engine temperature
Under the power module part of intelligent electric energy meter is measured, can simultaneously be worked with multiple.Test result can be to power module
Reprocess and provide guiding opinion, reduce maintenance time.The technique effect that efficiency is significantly improved.
The products such as the said equipment or device provided in an embodiment of the present invention be belong to using the flow and method of computer program as
Foundation, and according to the completely corresponding consistent mode of each step with method flow in embodiment of the method 1 and/or accompanying drawing, provided
Functional module.And because this functional module is the software service realized by way of computer program, so for
The functional module that device embodiment 2 is not specifically mentioned, due to consideration that the content recorded according to above method embodiment is sufficient
Each process step for enough making those skilled in the art be recorded from method determines to realize that the step must directly, expectedly
The functional module that must be set up, so will not be described here.
Due to the intelligent electric energy meter power module detection means of above-described embodiment 2 be for realizing the method in embodiment 1,
Therefore be in example 2 that those skilled in the art can be by reference to correspondence in place of each module or the not most detailed description of unit
Embodiment 1 in and run away with, so will not be repeated here.
The foregoing is only a specific embodiment of the invention, but the present invention can have a variety of various forms of specific implementations
Mode, does above in association with accompanying drawing to the present invention for example, this is not meant to the embodiment that the present invention is applied
It can be confined in these specific embodiments, those skilled in the art is it is to be appreciated that specific reality presented above
The mode of applying is some examples in a variety of preferred embodiments, and the embodiment of any embodiment the claims in the present invention is equal
Should be within the scope of the claims in the present invention be claimed；Those skilled in the art can be to each specific embodiment party above
Described technical scheme is modified in formula, or carries out equivalent substitution to which part technical characteristic.It is all the present invention
Within spirit and principle, any modification, equivalent substitution or improvement for being made etc. should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (9)
1. a kind of intelligent electric energy meter power module detection method, it is characterised in that while to the electricity to be measured of multiple intelligent electric energy meters
Source module is detected, for any power module to be measured, including：
Input voltage is provided for the power module to be measured of access；
By the power module to be measured because the output voltage produced by the input voltage is loaded into load circuit；
Gather the voltage x current data in the load circuit, and the power supply mould to be measured according to the voltage x current Data Detection
The health status of block；
Wherein, the voltage x current data in the collection load circuit, and according to the voltage x current Data Detection
The health status of power module to be measured, is specifically included：
Gather voltage ripple frequency and current ripples frequency in the load circuit；
Switching frequency is calculated according to the voltage ripple frequency and the current ripples frequency；
The voltage ripple frequency of the power module to be measured is determined according to known switching frequency and the switching frequency calculated
Whether whether normal and on-off circuit is normal for rate and current ripples frequency.
2. according to the method described in claim 1, it is characterised in that the voltage x current number in the collection load circuit
According to, and according to the voltage x current Data Detection power module to be measured health status, also specifically include：
Gather the output voltage of the load circuit；
Determined according to the voltage ripple frequency and the whether normal situation of the current ripples frequency and the output voltage
Whether the input circuit of the power module to be measured is normal.
3. the method according to any one in claim 1-2, it is characterised in that in the collection load circuit
Voltage x current data, and according to the voltage x current Data Detection power module to be measured health status, specifically include：
Gather the voltage under given load value in load circuit；
The power supply to be measured is determined according to the assigned voltage under the voltage and given load value under the given load value of collection
Whether the load regulation circuit of module is normal.
4. the method according to any one in claim 1-2, it is characterised in that this method also includes：Treated described in output
Survey the health status of power module.
5. the method according to any one in claim 1-2, it is characterised in that carried for the power module to be measured of access
Before input voltage, this method is also placed in environment temperature regulating box including the power module to be measured.
6. a kind of intelligent electric energy meter power module detection means, it is characterised in that while to the electricity to be measured of multiple intelligent electric energy meters
Source module detected, including：
Interface module, for providing input voltage for the power module to be measured of access；
Load regulation module, for the power module to be measured is negative because the output voltage produced by the input voltage is loaded into
Carry circuit；
Acquisition module, for gathering the voltage x current data in the load circuit；
Control module, the health status for the power module to be measured according to the voltage x current Data Detection；
Wherein, the acquisition module, with for gathering voltage ripple frequency and current ripples frequency in the load circuit；
The control module, specifically for calculating switching frequency according to the voltage ripple frequency and the current ripples frequency；
And the voltage ripple frequency of the power module to be measured is determined according to known switching frequency and the switching frequency calculated
Whether whether normal and on-off circuit is normal with current ripples frequency.
7. device according to claim 6, it is characterised in that
The acquisition module, is additionally operable to gather the output voltage of the load circuit；
The control module, be additionally operable to according to the voltage ripple frequency and the whether normal situation of the current ripples frequency with
And the output voltage determines whether the input circuit of the power module to be measured is normal.
8. the device according to any one in claim 6-7, it is characterised in that
The acquisition module, is additionally operable to gather the voltage in load circuit under given load value；
The control module, is additionally operable to the regulation electricity under the voltage and given load value under the given load value according to collection
Pressure determines whether the load regulation circuit of the power module to be measured is normal.
9. the device according to any one in claim 6-7, it is characterised in that also include：
Communication module, the health status for exporting the power module to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449842.5A CN104515956B (en) | 2013-09-27 | 2014-09-04 | A kind of intelligent electric energy meter power module detection method and device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603052 | 2013-09-27 | ||
| CN2013206030529 | 2013-09-27 | ||
| CN201410449842.5A CN104515956B (en) | 2013-09-27 | 2014-09-04 | A kind of intelligent electric energy meter power module detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104515956A CN104515956A (en) | 2015-04-15 |
| CN104515956B true CN104515956B (en) | 2017-10-27 |
Family
ID=52791556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410449842.5A Active CN104515956B (en) | 2013-09-27 | 2014-09-04 | A kind of intelligent electric energy meter power module detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104515956B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106293676B (en) * | 2015-06-08 | 2019-05-10 | 东元电机股份有限公司 | Generate the method and system of whole detection program |
| CN105676147A (en) * | 2016-01-26 | 2016-06-15 | 合肥华耀电子工业有限公司 | Radar power supply automatic test method |
| CN109031158B (en) * | 2018-08-15 | 2021-04-27 | 大族激光科技产业集团股份有限公司 | System and method for testing laser power supply |
| CN110673083B (en) * | 2019-11-13 | 2020-11-27 | 云南电网有限责任公司电力科学研究院 | Direct current standard source device for detecting electric energy meter metering error |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329387A (en) * | 2007-06-20 | 2008-12-24 | 鸿富锦精密工业（深圳）有限公司 | Power supply test system |
| CN201173965Y (en) * | 2008-09-01 | 2008-12-31 | 四川电力试验研究院 | Core technical parameter automatic test system of electric project DC power source equipment |
| CN201373911Y (en) * | 2009-02-23 | 2009-12-30 | 深圳市联欣科技有限公司 | Integrated test system for switch power source |
| CN201926748U (en) * | 2010-12-23 | 2011-08-10 | 上海泉润机电设备有限公司 | Full-automatic test device of aviation power supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833725A (en) * | 1981-08-20 | 1983-02-28 | Nec Corp | Testing method for power supply |
-
2014
- 2014-09-04 CN CN201410449842.5A patent/CN104515956B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329387A (en) * | 2007-06-20 | 2008-12-24 | 鸿富锦精密工业（深圳）有限公司 | Power supply test system |
| CN201173965Y (en) * | 2008-09-01 | 2008-12-31 | 四川电力试验研究院 | Core technical parameter automatic test system of electric project DC power source equipment |
| CN201373911Y (en) * | 2009-02-23 | 2009-12-30 | 深圳市联欣科技有限公司 | Integrated test system for switch power source |
| CN201926748U (en) * | 2010-12-23 | 2011-08-10 | 上海泉润机电设备有限公司 | Full-automatic test device of aviation power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104515956A (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204832351U (en) | Small resistance and insulation resistance's integrated tester | |
| CN103926470B (en) | Electromagnetic interface filter loads insertion loss Auto-Test System | |
| CN104515956B (en) | A kind of intelligent electric energy meter power module detection method and device | |
| CN1975454B (en) | Electromagnetic coefficient tester for electromagnetic material and testing method thereof | |
| CN109917317A (en) | Hall current sensor calibration detection apparatus and method | |
| CN106483397B (en) | A kind of electric energy quality detection device and measurement method of high-precision high bandwidth | |
| CN111521919A (en) | Low-voltage transformer area zero line live fault diagnosis device and diagnosis and positioning method | |
| CN102692616A (en) | Automatic test and collection device and method of smart meter | |
| CN109884438A (en) | A kind of mobile detection apparatus for direct current charging pile field detection | |
| CN103884953B (en) | A kind of capacitance type potential transformer damping circuit fault diagnosis system | |
| CN106772208A (en) | A kind of integrated reliability testing platform of single three-phase meter | |
| CN106707223A (en) | Electric energy meter electromagnetic compatibility immunity automatic test system | |
| CN106772188A (en) | Transformer operation characteristic evaluation method and evaluating platform based on environmental impact factor | |
| CN105842609A (en) | Hardware circuit detecting device for control unit of diesel engine SCR system | |
| CN103344937B (en) | Intelligent electric energy meter consumption detection equipment and detection method | |
| CN107219415A (en) | A kind of system and method for dry-type air-core reactor Universal electric performance parameter test | |
| CN102565717A (en) | Thermal battery test system | |
| CN206805286U (en) | A kind of device of DCS system simulations amount signal acquisition browsing real-time data | |
| CN106597150A (en) | Voltage transformer on-line state monitoring and fault diagnosing method | |
| CN206515459U (en) | A kind of actual loading test system of electric energy meter | |
| CN106533360A (en) | Portable outdoor power test device and test method for photovoltaic assemblies | |
| CN208223842U (en) | Portable type cold hydro-thermal pump assembly performance testing device | |
| CN102621349A (en) | Accelerometer test device and accelerometer test method | |
| CN211505799U (en) | Non-electric power relay calibration device | |
| CN106526303B (en) | A kind of the C-V characteristic test device and method of solid decoupling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |