CN205941773U - Intelligence fuse test system - Google Patents
Intelligence fuse test system Download PDFInfo
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- CN205941773U CN205941773U CN201620686599.3U CN201620686599U CN205941773U CN 205941773 U CN205941773 U CN 205941773U CN 201620686599 U CN201620686599 U CN 201620686599U CN 205941773 U CN205941773 U CN 205941773U
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- pressure injection
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Abstract
Intelligence fuse test system, including measurement and control center's module, time current device module and high -pressure injection fuse module, measurement and control center's module includes the computer, printer and USB the RS485 converter, time the current device module includes the constant current supply, current detection device, hardware timer and current transformer, high -pressure injection fuse module includes the high -pressure injection fuse, provided is a contactor, support and elementary stream, the elementary stream is used for replacing the fuse in the high -pressure injection fuse base, during the control contactor disconnection, with simulation fuse fusing state, when having the electric current in the system, current detection device has detected the electric current, trigger the time -recorder timing through circuit 1, behind fuse fusing, current detection device can not detect the electric current, it stops to trigger the time -recorder through circuit 2. The utility model discloses do not receive big microvariation of electric current and influence of fluctuations, it is simple reliable, can obtain the accurate time from fuse load test electric current to fuse fusing, judge whether qualified the fuse is.
Description
Technical field
The utility model is related to fuse technical field of measurement and test, specifically a kind of intelligent fuse test system.
Background technology
It is configured with a large amount of high-pressure injection fuses (drop switch) in power system, whether fuse parameter meets design system
Make requirement, determine Operation of Electric Systems reliability.For ensureing safe operation of electric network, user must check the when m- electric current of fuse
Characteristic.
In prior art, generally fuse test is carried out using Microcomputer Protection tester, relay protection tester cannot export big electricity
Stream, and cost intensive；And adopt pressure regulator, current lifting device scheme, rise flow to the experiment value time longer it is impossible to less to fusing time
Fuse tested, and current precision is low.In addition need multi gear output current, the multiple CT of adapted carries out multi-range measurement, exists
CT open circuit hidden danger；During up-flow, fuse carries load to cause heat accumulation in advance, and impact result of the test is it is impossible to carry out intelligent survey
Amount controls.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of intelligent fuse test system, detects electric current model
Enclose big, be not subject to size of current change and influence of fluctuations, simple and reliable device.
The purpose of this utility model is realized in：Intelligent fuse test system, including measurement and control center's module, when m-
Current device module and high-pressure injection fuse module, described measurement and control center module includes computer and USB-RS485 converter,
When described, m- current device module includes constant current supply, current sensing means, hardware timer summation current transformer, described height
Pressure injection fuse box module include high-pressure injection fuse and support, described computer pass through USB-RS485 converter respectively with
Described constant current supply and described hardware timer connect, described hardware timer and current sensing means pass through respectively circuit 1 and
Circuit 2 connects, and described constant current supply output end is connected with described high-pressure injection fuse input, described high-pressure injection fuse
Output end is connected by load line with constant current supply input, and described current sensing means passes through current transformer and high-pressure injection
Fuse output end connects.
Described measurement and control center module also includes printer.
Described computer includes database and supervising software.
Described high-pressure injection fuse module also includes contactor, and described contactor is serially connected on load line.
Described high-pressure injection fuse module also includes electric current line, and described electric current line is used for replacing high-pressure injection fuse base
Interior fuse, control contactor disconnects, to simulate fuse failure state.
The system has self-inspection and conventional fuse test two states.
System self-test：Whether normal for the permanent power supply of test, timer and Surveillance center, it is to avoid fuse is lost, can be electricity
Streamline loads in high-pressure injection fuse fusion tube and replaces fuse, closes contactor.Use measurement and control center's firing test, output current,
Contactor can be disconnected manually, simulation fuse failure terminates to test.Measurement and control center's computer capacity return current duration, electric current are big
The information such as little, so can carry out self-inspection assessment to whole system.
Fuse is tested：Fuse to be measured is loaded in high-pressure injection fuse fusion tube, closes contactor, then use measurement and control center
Computer starting is tested, and waits fuse failure automatically to terminate to test.
The utility model has the advantage of：After said structure, using high power constant-current source, export alternating current
Scope is big (0-400,0-1000A, 0-2000A etc. are optional), and load capacity is high, and current precision is high, and fuse load test electric current is accurate
Really, rapidly；Digitlization setting constant-current source output current, frequency, timer reset etc.；Current sensing means detects current range
Greatly, it is not subject to size of current change and influence of fluctuations, simple and reliable；Cooperation specialized hardware timer, when accurately detection electric current continues
Between (fuse failure time), time worst error 10ms；The upper software of coupled computer, realizes intelligence and tests；Electricity consumption streamline generation
For the fuse in high-pressure injection fuse base, decrease the consumption of fuse.
Brief description
Accompanying drawing 1 is structural representation of the present utility model.
Specific embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
Intelligent fuse test system, including measurement and control center's module 1, when m- current device module 2 and high-pressure injection fuse
Module 3, measurement and control center's module 1 includes computer 4, USB-RS485 converter 6 and printer 5, in computer include database and
Supervising software；When m- current device module 2 include constant current supply 7, current sensing means 8, hardware timer 9 and electricity
Current transformer 10；High-pressure injection fuse module 3 includes high-pressure injection fuse 12, support；Computer 4 passes through USB-RS485
Converter 6 is connected with described constant current supply 7 and described hardware timer 9 respectively, described hardware timer 9 and current sensing means
8 are connected by circuit 1 and circuit 2 respectively, and described constant current supply 7 output end is with described high-pressure injection fuse 12 input even
Connect, described high-pressure injection fuse 12 output end is connected with constant current supply 7 input, it is mutual that described current sensing means passes through electric current
Sensor 10 is connected with contactor 11 output end.
The system has following functions：
Computer 4 can carry out Test Information setting, constant-current source 7 parameter setting, start and stop, and timer 9 resets, reads timing
Value, the insertion of fuse time-current characteristic point, deletion, editor, Test Information storage, inquiry, Print Preview and printing etc., calculate
Machine monitoring software can arrange, monitor constant-current source 7 output current in real time, control constant-current source 7 start and stop and involution, read Millisecond hardware
Timer 9 data.
Fuse is tested：
Load fuse to be tried in high-pressure injection fuse, and close contactor.
First fuse time-current characteristic point, march are read from database according to information such as fuse specification, suppliers
After line matching, before obtaining the fuse minimum arc under current test electric current, actuation time is as judging basis of time.
Then carry out constant-current source parameter setting according to the electric current of user setup, frequency data, reset counter.
Start constant-current source operation by computer software to be tested.
When there being electric current on fuse, the high current on circuit is converted to small current and is transported to electric current inspection by current transformer 10
Survey device 8, current sensing means 8 exports passive null node triggering timing device 9 timing by circuit 1；Work as fuse failure, electric current is examined
Survey device 8 and can't detect electric current, passive null node triggering timing device 9 is exported by circuit 2 and stops；Computer 4 now can obtain
Accurately from fuse load test electric current to the time of fuse failure, determine time-current characteristic before the actual minimum arc of fuse
Point, judges whether fuse is qualified.Computer automatically generates test report, and stores.
System self-test：
For saving fuse, it is to avoid waste, load electric current line in high-pressure injection fuse and replace fuse, be closed at connecing
Tentaculum 11, after loading current certain time, control contactor 11 disconnects, and simulates fuse failure, other steps ibid " fuse
Test ".
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the application example, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out change or the variation of other multi-forms.There is no need to be exhaustive to all of embodiment.And thus drawn
Among the protection domain still in the application type for the obvious change or variation that Shen goes out.
Claims (6)
1. intelligent fuse test system it is characterised in that include measurement and control center's module, when m- current device module and high pressure spray
Penetrate fuse module, described measurement and control center module includes computer and USB-RS485 converter, m- current device mould when described
Block includes constant current supply, current sensing means, hardware timer summation current transformer, and described high-pressure injection fuse module includes
High-pressure injection fuse and support, described computer pass through USB-RS485 converter respectively with described constant current supply and described hard
Part timer connects, and described hardware timer passes through circuit 1 respectively with current sensing means and circuit 2 is connected, described constant current
Source output terminal is connected with described high-pressure injection fuse input, and described high-pressure injection fuse output end is inputted with constant current supply
End is connected by load line, and described current sensing means is connected with high-pressure injection fuse output end by current transformer.
2. intelligent fuse test system according to claim 1 is it is characterised in that described measurement and control center module also includes beating
Print machine, described printer connects on computers.
3. intelligent fuse test system according to claim 1 is it is characterised in that described computer includes database and meter
Calculate machine monitoring software, described supervising software is used for arranging, monitors constant-current supply output current in real time, controls constant-current supply
Start and stop, involution and reading hardware timer data.
4. intelligent fuse test system according to claim 1 it is characterised in that described high-pressure injection fuse module also
Including contactor, described contactor is serially connected on load line.
5. intelligent fuse test system according to claim 1 is it is characterised in that described hardware timer timing is millisecond
Level.
6. intelligent fuse test system according to claim 4 it is characterised in that described high-pressure injection fuse module also
Including electric current line, described electric current line is used for replacing the fuse in high-pressure injection fuse base, after contactor is disconnected, molten to simulate
Silk blown state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686599.3U CN205941773U (en) | 2016-07-01 | 2016-07-01 | Intelligence fuse test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686599.3U CN205941773U (en) | 2016-07-01 | 2016-07-01 | Intelligence fuse test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941773U true CN205941773U (en) | 2017-02-08 |
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ID=57931237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686599.3U Active CN205941773U (en) | 2016-07-01 | 2016-07-01 | Intelligence fuse test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205941773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019075A (en) * | 2016-07-01 | 2016-10-12 | 山东百川电气科技有限公司 | Intelligent fuse test system |
-
2016
- 2016-07-01 CN CN201620686599.3U patent/CN205941773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019075A (en) * | 2016-07-01 | 2016-10-12 | 山东百川电气科技有限公司 | Intelligent fuse test system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |