CN110007175A - A kind of test device - Google Patents
A kind of test device Download PDFInfo
- Publication number
- CN110007175A CN110007175A CN201910308310.2A CN201910308310A CN110007175A CN 110007175 A CN110007175 A CN 110007175A CN 201910308310 A CN201910308310 A CN 201910308310A CN 110007175 A CN110007175 A CN 110007175A
- Authority
- CN
- China
- Prior art keywords
- detection circuit
- leakage
- current detection
- test
- switch
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
- G01R19/0053—Noise discrimination; Analog sampling; Measuring transients
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
This application provides a kind of test device, which includes: external power supply input interface；Function selector circuit connects test circuit for selecting according to external control signal, to realize different detection functions；Dash current detection circuit, selects according to the connection of selection switch, carries out dash current detection to equipment under test；Electric-leakage detection circuit, selects according to the connection of selection switch, carries out detection of electrical leakage to equipment under test；Output interface is used for and equipment under test connecting test output interface.Supply voltage and electric current draw and connect and transfer by herein described technical solution by input/output interface; dash current is detected by the release unit in dash current detection circuit; earth leakage protective device device on electric-leakage detection circuit detects leakage current, to realize that a device can quickly detect dash current and whether leakage current meets the function of code requirement.
Description
Technical field
This application involves Electrical Safety testing field, in particular to a kind of survey suitable for quick detection device Electrical Safety
Trial assembly is set.
Background technique
Safety utilization of electric power detection for electrical equipment, the frequency and voltage for generalling use power supply at present draw inclined mode to test
Its power adaptation calculates the methods of its rated disspation in such a way that ammeter measures operating current.
Dash current for electrical equipment in power-up moment can only use power supply oscillograph since the duration is shorter
It measures, this method measurement accuracy is higher, but requires to test condition, needs using power supply oscillograph, and the party
Method cannot detect the leakage current situation of electrical equipment.
Summary of the invention
One of in order to solve the above problem, this application provides a kind of test dresses suitable for quick detection device Electrical Safety
It sets.
According to the first aspect of the embodiment of the present application, a kind of test device is provided, which includes:
External power supply input interface；
Functional select switch, for connecing dash current detection circuit and/or detection of electrical leakage according to external control signal selection
Circuit；
Dash current detection circuit, selects according to the connection of selection switch, carries out charging current detection to equipment under test；
Electric-leakage detection circuit, selects according to the connection of selection switch, carries out detection of electrical leakage to equipment under test；
For the output interface with equipment under test connecting test.
Preferably, the function selector circuit includes: prime switch and rear class switch；First contact of the prime switch
It is connect with the input terminal of dash current detection circuit, after the output end of dash current detection circuit is connected to function selector circuit
First contact of grade switch, rear class switch is connect with output interface.
Preferably, release unit is provided in the dash current detection circuit.
Preferably, the second contact of the prime switch is connect with leakage current detection circuit；The leakage current detection circuit
Output end with test output interface connect.
Preferably, earth leakage protective device is provided on the leakage current detection circuit.
Preferably, the first contact of prime switch is connect with dash current detection circuit input terminal, rear class switch the
Two contacts are connect with leakage current detection circuit input terminal.
Supply voltage and electric current draw and connect and transfer by herein described technical solution by input/output interface, pass through
Release unit in dash current detection circuit detects dash current, the earth leakage protective device device detection on electric-leakage detection circuit
Leakage current, to realize that a device can quickly detect dash current and whether leakage current meets the function of code requirement.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 shows the schematic diagram of test device described in this programme；
Fig. 2 shows the schematic diagrames of function selector circuit in test device described in this programme.
Specific embodiment
In order to which technical solution in the embodiment of the present application and advantage is more clearly understood, below in conjunction with attached drawing to the application
Exemplary embodiment be described in more detail, it is clear that described embodiment be only the application a part implement
Example, rather than the exhaustion of all embodiments.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can be combined with each other.
As shown in Figure 1, this programme discloses a kind of test device, which includes: outer for what is connect with external power supply
Portion's power input interface；Function selector circuit connects test circuit for selecting according to external control signal, different to realize
Detection function；Dash current detection circuit, selects according to the connection of selection switch, carries out charging current detection to equipment under test；
Electric-leakage detection circuit, selects according to the connection of selection switch, carries out detection of electrical leakage to equipment under test；For being connect with equipment under test
The output interface of test.
As shown in Fig. 2, the prime is opened in the present solution, the function selector circuit includes: prime switch and rear class switch
The first contact closed is connect with the input terminal of dash current detection circuit；The output end and function of the dash current detection circuit
The first contact interface connection that rear class switchs in selection circuit.It is equipped in the dash current detection circuit disconnected convenient for what is changed the outfit
Road device device.The second contact that prime switchs in the function selector circuit is connect with leakage current detection circuit；The leakage current
The output end of detection circuit is connect with test output interface.It is equipped on the leakage current detection circuit and is protected convenient for the electric leakage to change the outfit
Protection unit.The input interface of rear class switchs in the function selector circuit the second contact and leakage current detection circuit connects.
In the device course of work, when rear class switch connection in first contact of prime switch connection and function selector circuit
When the first contact, dash current detection circuit is connect with equipment under test, can carry out dash current detection to equipment under test；Work as institute
When stating prime the second contact of switch connection so that leakage current detection circuit connect equipment with tested, can to equipment under test into
Row leakage current test；When the second contact of rear class switch connection in first contact of prime switch connection and function selector circuit
When so that dash current detection circuit and leakage current detection circuit series connection after connect with equipment under test, can to equipment under test into
Row hybrid test.
This programme is described further below by example.
This example provides a kind of test device suitable for quick detection device Electrical Safety.The test device solves pair
The quick test problems of electrical equipment dash current and leakage current are provided and a kind of are quickly and easily measured for the safety utilization of electric power of equipment
Mode.Specifically, as shown in Figure 1, described device includes input interface, output interface, dash current detection circuit, leakage current inspection
Slowdown monitoring circuit, release unit and earth leakage protective device etc..
Input interface and output interface are located at the left and right sides of whole device, using the single-phase standard interface processed of three lines, respectively
For connecting power supply and being devices under；
Dash current detection circuit is located at input interface side, this circuit can change according to the safety requirements of electrical equipment
Dash current thresholding, once the dash current of electrical equipment transfinites, release unit at once action protection and alert；
Leakage current detection circuit is located at output interface side, can set residual current protection startup threshold, usually 30mA
It is protected, likewise, the earth leakage protective thresholding can be modified according to the safety requirements of electrical equipment, replaces corresponding leakage
Non-electricity protector.When electrical equipment leakage current occurs and electrical leakage quantity is prescribed a time limit more than protective door, earth leakage protective device automatic protection
And it alerts.
Different detection functions are set by man-machine interface, and is gated and is realized by function selector circuit: dash current test,
Leak electricity current test or hybrid test.
Supply voltage and electric current draw and connect and transfer by herein described technical solution by input/output interface, pass through
Release unit in dash current detection circuit detects dash current, the earth leakage protective device device detection on electric-leakage detection circuit
Leakage current, to realize that a device can quickly detect dash current and whether leakage current meets the function of code requirement.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (6)
1. a kind of test device, which is characterized in that the device includes:
External power supply input interface；
Functional select switch, for connecing dash current detection circuit and/or electric-leakage detection circuit according to external control signal selection；
Dash current detection circuit, selects according to the connection of selection switch, carries out charging current detection to equipment under test；
Electric-leakage detection circuit, selects according to the connection of selection switch, carries out detection of electrical leakage to equipment under test；
For the output interface with equipment under test connecting test.
2. test device according to claim 1, which is characterized in that the function selector circuit include: prime switch and
Rear class switch；First contact of the prime switch is connect with the input terminal of dash current detection circuit, dash current detection electricity
The output end on road is connected to the rear class switch of function selector circuit, and the first contact of rear class switch is connect with output interface.
3. test device according to claim 1, which is characterized in that be provided with open circuit in the dash current detection circuit
Device device.
4. test device according to claim 2, which is characterized in that the second contact of the prime switch and leakage current are examined
Slowdown monitoring circuit connection；The output end of the leakage current detection circuit is connect with test output interface.
5. test device according to claim 4, which is characterized in that be provided with electric leakage on the leakage current detection circuit and protect
Protection unit.
6. test device according to claim 2, which is characterized in that the first contact of the prime switch and dash current
The connection of detection circuit input terminal, the second contact of rear class switch is connect with leakage current detection circuit input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308310.2A CN110007175A (en) | 2019-04-17 | 2019-04-17 | A kind of test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308310.2A CN110007175A (en) | 2019-04-17 | 2019-04-17 | A kind of test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110007175A true CN110007175A (en) | 2019-07-12 |
Family
ID=67172558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910308310.2A Pending CN110007175A (en) | 2019-04-17 | 2019-04-17 | A kind of test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110007175A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232549A1 (en) * | 2020-05-21 | 2021-11-25 | 湖南省湘电试研技术有限公司 | Lightning protection insulator tolerance characteristic test method, test circuit, and design method |
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| CN2703349Y (en) * | 2004-03-09 | 2005-06-01 | 谢华跃 | Leakage circuit breaker with warning device |
| CN201247289Y (en) * | 2008-08-15 | 2009-05-27 | 安徽理工大学 | High-voltage network integrated protector tester |
| CN201352703Y (en) * | 2008-12-29 | 2009-11-25 | ***通信集团浙江有限公司 | Three-phase or single-phase multifunctional intelligent power protector |
| CN202094598U (en) * | 2011-04-18 | 2011-12-28 | 颜福随 | Rated current adjustable leakage protector |
| CN102611290A (en) * | 2012-03-16 | 2012-07-25 | 株洲南车时代电气股份有限公司 | Power supply circuit for low voltage test system of locomotive |
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| CN105958337A (en) * | 2016-04-28 | 2016-09-21 | 湖南星球智能电气科技开发有限公司 | Multi-functional distribution box |
| CN107251185A (en) * | 2014-12-25 | 2017-10-13 | 温德尔·E·托米姆班 | Devices, systems, and methods for protecting against electric fault comprehensively |
| CN206878443U (en) * | 2017-05-11 | 2018-01-12 | 浙江正泰电器股份有限公司 | Earth leakage protective device |
| CN207232292U (en) * | 2017-03-01 | 2018-04-13 | 成都知力电子有限责任公司 | Monitor the device and Surge Protector intelligent socket of resistive leakage current and surge current |
| CN108683170A (en) * | 2018-06-11 | 2018-10-19 | 重庆正博仪器工业有限公司 | Surge protection circuit with failure anticipation function |
| CN108766846A (en) * | 2018-07-09 | 2018-11-06 | 中国电力科学研究院有限公司 | A kind of intelligence with creepage protection function, which take, controls current limiting circuit breaker device and guard method |
| CN108828302A (en) * | 2018-07-09 | 2018-11-16 | 安徽诚意电气科技有限公司 | A kind of Surge Protector detection system based on repeated detection |
| CN208369313U (en) * | 2018-05-24 | 2019-01-11 | 中国电力科学研究院有限公司 | A kind of intelligent breaker with fault message feedback method |
-
2019
- 2019-04-17 CN CN201910308310.2A patent/CN110007175A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864581A (en) * | 1973-01-22 | 1975-02-04 | Varahur Srinivas Satyanarayana | Shock prevention device |
| CN2703349Y (en) * | 2004-03-09 | 2005-06-01 | 谢华跃 | Leakage circuit breaker with warning device |
| CN201247289Y (en) * | 2008-08-15 | 2009-05-27 | 安徽理工大学 | High-voltage network integrated protector tester |
| CN201352703Y (en) * | 2008-12-29 | 2009-11-25 | ***通信集团浙江有限公司 | Three-phase or single-phase multifunctional intelligent power protector |
| CN202094598U (en) * | 2011-04-18 | 2011-12-28 | 颜福随 | Rated current adjustable leakage protector |
| CN102611290A (en) * | 2012-03-16 | 2012-07-25 | 株洲南车时代电气股份有限公司 | Power supply circuit for low voltage test system of locomotive |
| CN107251185A (en) * | 2014-12-25 | 2017-10-13 | 温德尔·E·托米姆班 | Devices, systems, and methods for protecting against electric fault comprehensively |
| CN105490261A (en) * | 2016-02-05 | 2016-04-13 | 江世军 | Safety electricity utilization intelligent device |
| CN105958337A (en) * | 2016-04-28 | 2016-09-21 | 湖南星球智能电气科技开发有限公司 | Multi-functional distribution box |
| CN207232292U (en) * | 2017-03-01 | 2018-04-13 | 成都知力电子有限责任公司 | Monitor the device and Surge Protector intelligent socket of resistive leakage current and surge current |
| CN206878443U (en) * | 2017-05-11 | 2018-01-12 | 浙江正泰电器股份有限公司 | Earth leakage protective device |
| CN208369313U (en) * | 2018-05-24 | 2019-01-11 | 中国电力科学研究院有限公司 | A kind of intelligent breaker with fault message feedback method |
| CN108683170A (en) * | 2018-06-11 | 2018-10-19 | 重庆正博仪器工业有限公司 | Surge protection circuit with failure anticipation function |
| CN108766846A (en) * | 2018-07-09 | 2018-11-06 | 中国电力科学研究院有限公司 | A kind of intelligence with creepage protection function, which take, controls current limiting circuit breaker device and guard method |
| CN108828302A (en) * | 2018-07-09 | 2018-11-16 | 安徽诚意电气科技有限公司 | A kind of Surge Protector detection system based on repeated detection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232549A1 (en) * | 2020-05-21 | 2021-11-25 | 湖南省湘电试研技术有限公司 | Lightning protection insulator tolerance characteristic test method, test circuit, and design method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |