CN207096401U - A kind of electrical apparatus release test system - Google Patents
A kind of electrical apparatus release test system Download PDFInfo
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- CN207096401U CN207096401U CN201721059937.1U CN201721059937U CN207096401U CN 207096401 U CN207096401 U CN 207096401U CN 201721059937 U CN201721059937 U CN 201721059937U CN 207096401 U CN207096401 U CN 207096401U
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- electrical apparatus
- apparatus release
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- signal
- monitoring device
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Abstract
A kind of electrical apparatus release test system provided by the utility model, including：Sound transducer, electrical apparatus release, voltage dip signal generator, voltage signal monitoring device；Voltage signal monitoring device is connected to the connection end of electrical apparatus release and voltage dip signal generator；Sound transducer connects voltage signal monitoring device；Sound transducer is corresponding with electrical apparatus release, the sound sent for monitoring electrical apparatus release.The utility model can send the principle of sound according to electrical apparatus release action, the action situation of electrical apparatus release is monitored by sound transducer, and voice signal is converted into electric signal and sent to voltage signal monitoring device, and handle the voltage dip signal that the signal of sound transducer output and voltage dip signal generator export simultaneously by voltage signal monitoring device, so as to have recorded the action situation of electrical apparatus release and actuation time, solve that existing low pressure trip device test system efficiency is low, can not record the technical problem of the precision maneuver time of electrical apparatus release.
Description
Technical field
It the utility model is related to electrical apparatus release technical field, more particularly to a kind of electrical apparatus release test system.
Background technology
Referring to Fig. 1, Fig. 1 is a kind of schematic diagram of low pressure trip device.Low pressure trip device is by control circuit and electromagnetic system
Two parts of uniting are formed, and wherein electromagnetic system includes armature, coil and spring etc..When applied voltage is normal, coil alternating current magnetic force
Keep balancing with reactive spring force, armature is held, and breaker main contact is locked in closing position；When applied voltage is relatively low,
Coil alternating current magnetic force is less than the reaction force of spring, and armature moves upwards, promotes circuit breaker draw bar, makes breaker main contact
Disconnect, so as to play under-voltage protection effect.
Low pressure trip device largely widely uses as breaker core annex in distribution.And voltage dip is asked in recent years
Topic becomes increasingly conspicuous, it has also become influences the main power quality problem of equipment normal operation.The voltage dip of major network is likely to result in
Large-scale low pressure trip device mistrip (in fact need not trip) occurs for distribution, brings serious load to damage to power consumer
Lose.Therefore the performance of low pressure trip device is tested, studies its acting characteristic under voltage dip, there is important scientific research
Meaning and practical value.
Test purpose to low pressure trip device is the acting characteristic for grasping voltage trip device in the case of various voltage dips,
Generally use low pressure trip device test system is tested, as shown in Fig. 2 voltage dip generator sends electricity to low pressure trip device
Pressure temporarily drop signal, while signal temporarily drops in oscillograph recording voltage, and low pressure trip device action situation is observed, by manual record low pressure
Whether electrical apparatus release acts, and signal temporarily drops in corresponding associated voltage, so as to analyze the acting characteristic of low pressure trip device.
But the major defect of this low pressure trip device test system is：
A) can only manual record electrical apparatus release action situation, efficiency is low；
B) it can only record and whether act, it is impossible to record the precision maneuver time of electrical apparatus release.
Utility model content
The utility model discloses a kind of electrical apparatus release test system, for solving existing low pressure trip device test system effect
Rate is low, can not record electrical apparatus release the precision maneuver time technical problem.
A kind of electrical apparatus release test system provided by the utility model, including：Sound transducer, electrical apparatus release, voltage dip letter
Number generator, voltage signal monitoring device；
The electrical apparatus release connects the voltage dip signal generator；
The voltage signal monitoring device is connected to the connection end of the electrical apparatus release and the voltage dip signal generator；
The sound transducer connects the voltage signal monitoring device；
The sound transducer is corresponding with the electrical apparatus release, the sound sent for monitoring the electrical apparatus release.
Preferably, the voltage signal monitoring device is specially oscillograph.
Preferably, the voltage signal monitoring device includes signal receiving circuit and display screen, for receiving the sound
The signal of sensor output and the voltage dip signal of voltage dip signal generator output simultaneously pass through the display screen display
Show.
Preferably, the utility model also includes computer；
The computer connects the voltage signal monitoring device, for the waveform according to the voltage signal monitoring device
Signal calculates action situation and the actuation time of the electrical apparatus release automatically.
Preferably, the electrical apparatus release is low pressure trip device.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
A kind of electrical apparatus release test system provided by the utility model, including：Sound transducer, electrical apparatus release, voltage dip letter
Number generator, voltage signal monitoring device；The electrical apparatus release connects the voltage dip signal generator；The voltage signal prison
Survey the connection end that device is connected to the electrical apparatus release and the voltage dip signal generator；Described in the sound transducer connection
Voltage signal monitoring device；The sound transducer is corresponding with the electrical apparatus release, the sound sent for monitoring the electrical apparatus release
Sound.The utility model can send the principle of sound according to electrical apparatus release action, and the action feelings of electrical apparatus release are monitored by sound transducer
Condition, and voice signal is converted into electric signal and sent to voltage signal monitoring device, and by voltage signal monitoring device simultaneously
The signal of sound transducer output and the voltage dip signal of voltage dip signal generator output are handled, is threaded off so as to have recorded
The action situation of device and actuation time, solve that existing low pressure trip device test system efficiency is low, can not record electrical apparatus release
The technical problem of precision maneuver time.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of one embodiment of the electrical apparatus release test system provided in the utility model；
Fig. 2 is the waveform for the voltage dip signal that the signal of sound transducer output and voltage dip signal generator export
Schematic diagram.
Embodiment
The utility model discloses a kind of electrical apparatus release test system, for solving existing low pressure trip device test system effect
Rate is low, can not record electrical apparatus release the precision maneuver time technical problem.
Referring to Fig. 1, a kind of one embodiment of the electrical apparatus release test system provided in the utility model includes：Sound passes
Sensor 103, electrical apparatus release 101, voltage dip signal generator 102, voltage signal monitoring device 104；
Electrical apparatus release 101 connects voltage dip signal generator 102；
Voltage signal monitoring device 104 is connected to the connection end of electrical apparatus release 101 and voltage dip signal generator 102；Or
Person says that voltage signal monitoring device 104 is connected to the junction between electrical apparatus release 101 and voltage dip signal generator 102.
Sound transducer 103 connects voltage signal monitoring device 104；
Sound transducer 103 is corresponding with electrical apparatus release 101, the sound sent for monitoring electrical apparatus release 101.
Sound transducer 103 is corresponding with electrical apparatus release 101 refer to sound transducer 103 be arranged at the side of electrical apparatus release 101 or
The alignment electrical apparatus release 101 of person's sound transducer 103, clearly can accurately detect that the sound that electrical apparatus release 101 is sent is defined.
Above-mentioned connection is usually to electrically connect or be electrically connected.
A kind of electrical apparatus release test system provided by the utility model, including：Sound transducer, electrical apparatus release, voltage dip letter
Number generator, voltage signal monitoring device；The electrical apparatus release connects the voltage dip signal generator；The voltage signal prison
Survey the connection end that device is connected to the electrical apparatus release and the voltage dip signal generator；Described in the sound transducer connection
Voltage signal monitoring device；The sound transducer is corresponding with the electrical apparatus release, the sound sent for monitoring the electrical apparatus release
Sound.The utility model can send the principle of sound according to electrical apparatus release action, and the action feelings of electrical apparatus release are monitored by sound transducer
Condition, and voice signal is converted into electric signal and sent to voltage signal monitoring device, and by voltage signal monitoring device simultaneously
The signal of sound transducer output and the voltage dip signal of voltage dip signal generator output are handled, is threaded off so as to have recorded
The action situation of device and actuation time, solve that existing low pressure trip device test system efficiency is low, can not record electrical apparatus release
The technical problem of precision maneuver time.
Further, voltage signal monitoring device 104 is specially oscillograph.
Further, voltage signal monitoring device 104 includes signal receiving circuit and display screen, for receiving sound sensor
The voltage dip signal for signal and voltage dip signal generator 102 output that device 103 exports simultaneously is shown by display screen.
Referring to Fig. 2, Fig. 2 is the signal of sound transducer output and the voltage dip of voltage dip signal generator output
The waveform diagram of signal.From Figure 2 it can be seen that after voltage dip, electrical apparatus release starts simultaneously at the beginning of the voltage dip de-
Mouth action, experienced 2.11 seconds, trip action is completed in the position of most about 2.2 seconds finally, and when more than 4 seconds, voltage is extensive
It is multiple normal, electrical apparatus release momentary recovery normal position.
In the scheme of computer 105 is not included, technical staff can pass through the ripple of the record of voltage signal monitoring device 104
Shape signal analysis obtains the action situation of electrical apparatus release and the information of actuation time, specifically the waveform by observing display screen
Signal judges or sets some circuits to be judged, is not explained in detail herein.
Further, the utility model also includes computer 105；
Computer 105 connects voltage signal monitoring device 104, for being believed according to the waveform of voltage signal monitoring device 104
Number automatic action situation for calculating electrical apparatus release and actuation time.
Further, electrical apparatus release is low pressure trip device.
In the further scheme including computer 105, technical staff can calculate dropout automatically by computer 105
The action situation of device and actuation time, specifically include following steps：
A) control voltage of computer 105 temporarily drops generator 102 and sends voltage dip signal to low pressure trip device 101, calculates
Signal and sound transducer output letter temporarily drop to machine 105 in control voltage signal monitoring device 104 (oscillograph), recording voltage simultaneously
Number；
B) computer 105 judges whether voltage trip device 101 moves by analyzing the size of the output signal of sound transducer 103
Make；A limit value can be set, the limit value should be significantly greater than the background signal amplitude of the output signal of sound transducer 103, to avoid
Erroneous judgement, when the output signal sampled value of sound transducer 103 is more than limit value, it is considered as low pressure trip device 101 and has acted, otherwise
Do not act.
C) action moment that moment and low pressure trip device 101 occurs of signal, meter temporarily drop by comparison voltage in computer 105
Calculate the actuation time of low pressure trip device 101.
The utility model records the running-active status of low pressure trip device using oscillograph by sound transducer, can pass through calculating
Machine calculates whether low pressure trip device acts automatically；
The utility model oscillograph synchronous recording voltage dip signal and sound transducer signal, when electrical apparatus release acts
When, actuation time of electrical apparatus release can be calculated.
A kind of electrical apparatus release test system provided by the utility model is described in detail above, for this area
Those skilled in the art, according to the thought of the utility model embodiment, change is had in specific embodiments and applications
Part, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (5)
- A kind of 1. electrical apparatus release test system, it is characterised in that including：Sound transducer, electrical apparatus release, voltage dip signal occur Device, voltage signal monitoring device；The electrical apparatus release connects the voltage dip signal generator；The voltage signal monitoring device is connected to the connection end of the electrical apparatus release and the voltage dip signal generator；The sound transducer connects the voltage signal monitoring device；The sound transducer is corresponding with the electrical apparatus release, the sound sent for monitoring the electrical apparatus release.
- A kind of 2. electrical apparatus release test system according to claim 1, it is characterised in that the voltage signal monitoring device tool Body is oscillograph.
- A kind of 3. electrical apparatus release test system according to claim 1, it is characterised in that the voltage signal monitoring device bag Signal receiving circuit and display screen are included, the signal and the voltage dip signal for receiving the sound transducer output occur The voltage dip signal of device output is simultaneously shown by the display screen.
- 4. a kind of electrical apparatus release test system according to claim 1, it is characterised in that also including computer；The computer connects the voltage signal monitoring device, for the waveform signal according to the voltage signal monitoring device Automatically action situation and the actuation time of the electrical apparatus release are calculated.
- 5. a kind of electrical apparatus release test system according to claim 1, it is characterised in that the electrical apparatus release is low pressure trip Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059937.1U CN207096401U (en) | 2017-08-23 | 2017-08-23 | A kind of electrical apparatus release test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059937.1U CN207096401U (en) | 2017-08-23 | 2017-08-23 | A kind of electrical apparatus release test system |
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| Publication Number | Publication Date |
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| CN207096401U true CN207096401U (en) | 2018-03-13 |
Family
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| CN201721059937.1U Active CN207096401U (en) | 2017-08-23 | 2017-08-23 | A kind of electrical apparatus release test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521358A (en) * | 2018-11-06 | 2019-03-26 | 南京国电南自电网自动化有限公司 | A kind of protective device exit relay circuit impedance matching primitives method and system |
-
2017
- 2017-08-23 CN CN201721059937.1U patent/CN207096401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521358A (en) * | 2018-11-06 | 2019-03-26 | 南京国电南自电网自动化有限公司 | A kind of protective device exit relay circuit impedance matching primitives method and system |
| CN109521358B (en) * | 2018-11-06 | 2020-11-06 | 南京国电南自电网自动化有限公司 | Impedance matching calculation method and system for protection device outlet relay circuit |
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