CN208421165U - Breaker coil power output size detection device - Google Patents
Breaker coil power output size detection device Download PDFInfo
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- CN208421165U CN208421165U CN201820443499.7U CN201820443499U CN208421165U CN 208421165 U CN208421165 U CN 208421165U CN 201820443499 U CN201820443499 U CN 201820443499U CN 208421165 U CN208421165 U CN 208421165U
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Abstract
The utility model discloses a kind of breaker coil power output size detection device, including pulse signal generation circuit, relay coil structure, operating circuit, pressure sensor and host computer, pulse signal generation circuit connects relay coil structure, to relay coil structure output impulse wave；When the impulse wave of pulse signal generation circuit output is high level, relay coil fabric connectivity operating circuit and pulse signal generation circuit, and Operating In Persistent Current Mode circuit, so that breaker electrifying to be measured；After breaker electrifying to be measured, internal dynamic iron core power output hits pressure sensor, and pressure sensor acquires the pressure value that dynamic iron core is contributed in breaker to be measured, and pressure value collected is transmitted to host computer.The utility model is applicable in the power output detection of various breaker coils, and connection type is simple, and test operation is simple, and it is high to save man-haur efficiency.
Description
Technical field
The utility model relates to breaker coil testing field, in particular to a kind of breaker coil power output size detection dress
It sets.
Background technique
Breaker is the most important equipment of electric system, and main function is automatically controlled various in normal or failure
Power circuit and equipment are cut-off and are closed, to guarantee the normal operation of system.As the main element of breaker mechanism, division
Brake cable circle does not obtain enough attention for a long time, and without national standard and comprehensive testing requirements, each producer's product quality is irregular
It is uneven, and it is key factor that breaker is cut-off that can divide-shut brake coil, which correctly act,.It is following more next with grid equipment
More, breaker total amount constantly increases, and especially in coastal area, high humidity high-heat environment with high salt is unfavorable for the operation of equipment.Once
Coil goes wrong, and will affect failure removal, expands accident, influences power supply reliability, also repeatedly occurs because of divide-shut brake in power grid
The extremely caused fault spread of coil.Therefore the demand of the test device of divide-shut brake coil will be more more and more urgent therefore need to develop
A kind of test device for circuit-breaker switching on-off coil guarantees that the quality of product can satisfy coil measurement requirement, sends out in time
Existing potential risk, promotes breaker reliability of operation.
At present in the basic test of breaker coil, including temperature rise test, mechanical endurance test.Temperature rise test is logical
Electric 1s powers off 99s, and 8 hours of continuous action, off-test was taken until temperature stablizes (general case surface can reach more than 50 DEG C)
Whether the parameters such as the power output of detection coil, actuation time have exception out.Continuous action under mechanical endurance test is powered and compares 1%
50000 times, whether monitoring case surface temperature is no more than 80 DEG C, and whether the parameters such as other power, actuation time have exception.?
In two above test, it can be found that the power output size of divide-shut brake coil is one important in the testing experiment of breaker coil
Testing index.But the no national standard of test and comprehensive detection of circuit-breaker switching on-off coil power output size are wanted at present
It asks, each coil production producer generally uses the test of circuit-breaker switching on-off coil power output size the side for building simple platform
Formula lacks unified codes and standards.
Utility model content
The main purpose of the utility model is to propose a kind of breaker coil power output size detection device, it is intended to be overcome above-mentioned
Problem.
To achieve the above object, the utility model proposes a kind of breaker coil contribute size detection device, including arteries and veins
Signal generating circuit, relay coil structure, operating circuit, pressure sensor and host computer are rushed, pulse signal generation circuit connects
Contact relay loop construction, to relay coil structure output impulse wave；When the impulse wave of pulse signal generation circuit output is
When high level, relay coil fabric connectivity operating circuit and pulse signal generation circuit, and Operating In Persistent Current Mode circuit, so as to be measured
Breaker electrifying；After breaker electrifying to be measured, internal dynamic iron core power output hits pressure sensor, pressure sensor acquisition to
The pressure value of dynamic iron core power output in breaker is surveyed, and pressure value collected is transmitted to host computer.
Preferably, the pressure sensor is additionally provided with the conversion module that pressure value is converted into momentum.
Preferably, the pulse signal generation circuit includes that multivibrator and capacitor C are made of 555 chips, described
The structure of 555 chips is that 1 foot is ground terminal GND；2 feet are low level triggering end, thus input low level trigger pulse；3 feet are
Output end；4 feet are reset terminal, and input negative pulse makes the timer direct reduction in 555 chips；5 feet are voltage controling end, herein
Applied voltage is held to change the reference voltage of comparator, when not used, the capacity earth through 0.01uF；6 feet are high level triggering end, by
This input high level trigger pulse；7 feet are discharge end, when the timer in 555 chips exports low level, are put to external capacitor C
Electricity；8 feet are power source voltage Vcc.
Preferably, it is a kind of self-excited oscillator for generating rectangular wave pulse that 555 chip, which constitutes multivibrator,.
Preferably, the pulse signal generation circuit further includes that resistance R1 and resistance R2, the resistance R1 are set to 555 cores
Between 7 feet and 8 feet of piece, the resistance R2 is set to 7 feet of 6 feet of 555 chips and the level triggers node of 2 feet and 555 chips
Between.
Preferably, the frequency of oscillation of the rectangular wave pulse and output waveform duty ratio, which pass through, adjusts resistance R1, electricity
Resistance R2 and capacitor C changes cycle of oscillation,
Capacitor C charging time T1:
Wherein indicating concussion constant coefficient, Vcc is supply voltage, and Vc is capacitance voltage,
Capacitor C discharge time T2:T2=0.7R2C (2),
Circuit oscillation cycle T: T=T1+T2=0.7 (R1+2R2) C (3),
Circuit oscillation frequency f:
Output waveform duty ratio q:
By (5) formula it is found that adjusting the duty ratio of circuit oscillation cycle T and output waveform by the value for adjusting R1, R2, and
Circuit oscillation cycle T is adjusted by capacitor C.
It preferably, further include transmitter, the transmitter sends pressure sensor pressure value collected to host computer.
The utility model is a kind of new equipment of breaker coil actuation time detection, which can accurately detect open circuit
Device coil power output size, moreover it is possible to which the test result of breaker coil items testing experiment is assessed.
The utility model has the advantage that
1. being suitable for the detection of all breaker coils power output size；
2. pulse signal generation circuit is built using 555 chips with capacitance resistance, structure is simple, output voltage waveforms
Duty ratio is simply easily adjusted, and wire loop uses the conducting and shutdown of control relay circuit, and response is rapidly, efficiently convenient；
3. pressure sensor is connect by transmitter with host computer, can simultaneous display go out pressure sensor institute's test coil and contribute
Size；
4. connection type is simple, test operation is simple, and it is high to save man-haur efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that the structure of the utility model breaker coil power output one embodiment of size detection device is intended to；
Fig. 2 is the circuit diagram of pulse signal generation circuit described in the utility model；
Fig. 3 is the multivibrator mechanical periodicity effect picture that 555 chip of the utility model is constituted,
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
Referring to Fig.1-3, the utility model proposes a kind of breaker coil contribute size detection device, including pulse signal
Circuit, relay coil structure, operating circuit, pressure sensor and host computer occurs, pulse signal generation circuit connects relay
Device loop construction, to relay coil structure output impulse wave；When the impulse wave of pulse signal generation circuit output is high level
When, relay coil fabric connectivity operating circuit and pulse signal generation circuit, and Operating In Persistent Current Mode circuit, so that breaker to be measured
It is powered；After breaker electrifying to be measured, internal dynamic iron core power output hits pressure sensor, and pressure sensor acquires open circuit to be measured
The pressure value that dynamic iron core is contributed in device, and pressure value collected is transmitted to host computer.
In the utility model embodiment, breaker coil go out force checking device by signal pulse signal generating loop,
Relay coil structure, pressure sensor and upper structure at.Pulse signal generating loop is the multi resonant being made of 555 chips
Oscillator exports a rectangular pulse waveform；When multivibrator exports high level, when relay works, electromagnet energization handle
Armature, which is inhaled, makes dynamic and static contact, and operating circuit is closed so that coil energization, dynamic iron core under the action of internal electromagnetic force
Impact microphone.When multivibrator exports low level, electromagnet loses magnetism when powering off, and spring handle armature pulls up, cutting
Operating circuit, coil blackout dynamic iron core reset；Institute's measuring pressure value is passed through change by after the collision of dynamic iron core mandril by pressure sensor
Send device to be transmitted to host computer, by conversion (providing software by sensor producer), obtain shock moment coil dynamic iron core it is dynamic
Amount.The impact force of general coil is tens oxen.
Preferably, the pressure sensor is additionally provided with the conversion module that pressure value is converted into momentum.
Preferably, the pulse signal generation circuit includes that multivibrator and capacitor C are made of 555 chips, described
The structure of 555 chips is that 1 foot is ground terminal GND；2 feet are low level triggering end, thus input low level trigger pulse；3 feet are
Output end；4 feet are reset terminal, and input negative pulse makes the timer direct reduction in 555 chips；5 feet are voltage controling end, herein
Applied voltage is held to change the reference voltage of comparator, when not used, the capacity earth through 0.01uF；6 feet are high level triggering end, by
This input high level trigger pulse；7 feet are discharge end, when the timer in 555 chips exports low level, are put to external capacitor C
Electricity；8 feet are power source voltage Vcc.
Preferably, it is a kind of self-excited oscillator for generating rectangular wave pulse that 555 chip, which constitutes multivibrator,.
Preferably, the pulse signal generation circuit further includes that resistance R1 and resistance R2, the resistance R1 are set to 555 cores
Between 7 feet and 8 feet of piece, the resistance R2 is set to 7 feet of 6 feet of 555 chips and the level triggers node of 2 feet and 555 chips
Between.
Preferably, the frequency of oscillation of the rectangular wave pulse and output waveform duty ratio, which pass through, adjusts resistance R1, electricity
Resistance R2 and capacitor C changes cycle of oscillation,
Capacitor C charging time T1:
Wherein indicating concussion constant coefficient, Vcc is supply voltage, and Vc is capacitance voltage,
Capacitor C discharge time T2:T2=0.7R2C (2),
Circuit oscillation cycle T: T=T1+T2=0.7 (R1+2R2) C (3),
Circuit oscillation frequency f:
Output waveform duty ratio q:
By (5) formula it is found that adjusting the duty ratio of circuit oscillation cycle T and output waveform by the value for adjusting R1, R2, and
Circuit oscillation cycle T is adjusted by capacitor C.
It preferably, further include transmitter, the transmitter sends pressure sensor pressure value collected to host computer.
In the utility model implementation, the multivibrator that 555 chips are constituted be it is a kind of can generate rectangular wave from exciting
Swing device, also referred to as square-wave generator.After being powered up, rectangular pulse can be automatically generated by not needing applying pulse.Its work
When principle is that power supply is connected, 555 3 feet export high level, while power supply is charged by R1, R2 to capacitor c, when the voltage on c
When reaching threshold voltage (2/3 supply voltage) of 555 integrated circuit, 6 foot, 555 7 feet bleed off the electricity in capacitor, and 3 feet are by height
Level becomes low level.When the voltage of capacitor drops to 1/3 supply voltage, 3 feet become high level again, while power supply passes through again
R1, R2 are to capacitor charging.So in cycles, oscillation is formed.Periodic Rectangular pulse signal caused by multivibrator applies
To relay, when the signal of multivibrator output is the high level of rectangular pulse, when relay works, electromagnet energization handle
Armature, which is inhaled, makes dynamic and static contact, and operating circuit is closed so that 110v/220v DC power supply is powered to coil.Coil
For dynamic iron core after coil energization, impact microphone under the action of internal electromagnetic force, sensor will be in pressure value pick-up to computer
Software, by convert module obtain the coil dynamic iron core of shock moment momentum (impact force of general coil be tens
Ox).When multivibrator exports low level, electromagnet loses magnetism when powering off, and spring handle armature pulls up, and coil blackout is dynamic
Plunger return.Therefore rectangular pulse caused by the on, off of wire loop and multivibrator is in same mechanical periodicity, therefore can
With the interior power output situation for repeatedly testing coil according to same time interval when detecting.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Under the utility model design of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (7)
- The size detection device 1. breaker coil is contributed, which is characterized in that including pulse signal generation circuit, relay coil knot Structure, operating circuit, pressure sensor and host computer, pulse signal generation circuit connects relay coil structure, to relay line Coil structures export impulse wave；When the impulse wave of pulse signal generation circuit output is high level, relay coil fabric connectivity Operating circuit and pulse signal generation circuit, and Operating In Persistent Current Mode circuit, so that breaker electrifying to be measured；Breaker electrifying to be measured Afterwards, internal dynamic iron core power output hits pressure sensor, and pressure sensor acquires the pressure that dynamic iron core is contributed in breaker to be measured Force value, and pressure value collected is transmitted to host computer.
- The size detection device 2. breaker coil as described in claim 1 is contributed, which is characterized in that the pressure sensor is also Equipped with the conversion module that pressure value is converted into momentum.
- The size detection device 3. breaker coil as described in claim 1 is contributed, which is characterized in that the pulse signal occurs Circuit includes that multivibrator and capacitor C are made of 555 chips, and the structure of 555 chip is that 1 foot is ground terminal GND；2 feet For low level triggering end, thus input low level trigger pulse；3 feet are output end；4 feet are reset terminal, and input negative pulse makes 555 Timer direct reduction in chip；5 feet are voltage controling end, hold applied voltage to change the reference voltage of comparator herein, no Used time, the capacity earth through 0.01uF；6 feet are high level triggering end, thus input high level trigger pulse；7 feet are discharge end, When timer in 555 chips exports low level, discharge external capacitor C；8 feet are power source voltage Vcc.
- The size detection device 4. breaker coil as claimed in claim 3 is contributed, which is characterized in that 555 chip is constituted Multivibrator is a kind of self-excited oscillator for generating rectangular wave pulse.
- The size detection device 5. breaker coil as claimed in claim 4 is contributed, which is characterized in that the pulse signal occurs Circuit further includes resistance R1 and resistance R2, the resistance R1 between 7 feet and 8 feet of 555 chips, and the resistance R2 is set to Between 6 feet of 555 chips and the level triggers node of 2 feet and 7 feet of 555 chips.
- The size detection device 6. breaker coil as claimed in claim 5 is contributed, which is characterized in that the rectangular wave pulse Frequency of oscillation and output waveform duty ratio change cycle of oscillation by resistance R1, resistance R2 and capacitor C,Capacitor C charging time T1:Wherein indicating concussion constant coefficient, Vcc is supply voltage, and Vc is capacitance voltage,Capacitor C discharge time T2:T2=0.7R2C (2),Circuit oscillation cycle T: T=T1+T2=0.7 (R1+2R2) C (3),Circuit oscillation frequency f:Output waveform duty ratio q:By (5) formula it is found that adjusting the duty ratio of circuit oscillation cycle T and output waveform by the value for adjusting R1, R2, and circuit Cycle of oscillation T is adjusted by capacitor C.
- The size detection device 7. breaker coil as described in claim 1 is contributed, which is characterized in that it further include transmitter, institute It states transmitter and sends pressure sensor pressure value collected to host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443499.7U CN208421165U (en) | 2018-03-29 | 2018-03-29 | Breaker coil power output size detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443499.7U CN208421165U (en) | 2018-03-29 | 2018-03-29 | Breaker coil power output size detection device |
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| CN208421165U true CN208421165U (en) | 2019-01-22 |
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| CN201820443499.7U Active CN208421165U (en) | 2018-03-29 | 2018-03-29 | Breaker coil power output size detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535640A (en) * | 2018-03-29 | 2018-09-14 | 广东电网有限责任公司 | A kind of breaker coil output size detection device |
| CN110350817A (en) * | 2019-05-27 | 2019-10-18 | 广州供电局有限公司 | Pulse generating circuit |
-
2018
- 2018-03-29 CN CN201820443499.7U patent/CN208421165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535640A (en) * | 2018-03-29 | 2018-09-14 | 广东电网有限责任公司 | A kind of breaker coil output size detection device |
| CN110350817A (en) * | 2019-05-27 | 2019-10-18 | 广州供电局有限公司 | Pulse generating circuit |
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