CN107290660A - A kind of miniature circuit breaker detecting system - Google Patents
A kind of miniature circuit breaker detecting system Download PDFInfo
- Publication number
- CN107290660A CN107290660A CN201710647816.7A CN201710647816A CN107290660A CN 107290660 A CN107290660 A CN 107290660A CN 201710647816 A CN201710647816 A CN 201710647816A CN 107290660 A CN107290660 A CN 107290660A
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- Prior art keywords
- circuit breaker
- miniature circuit
- master control
- control borad
- tested
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of miniature circuit breaker detecting system, including electric current generating unit and the master control borad for controlling the electric current generating unit；The electric current generating unit includes one-level regulator and two stage pressure regulator；The one-level regulator is arranged between power supply and tested miniature circuit breaker, for regulating and controlling the voltage at the tested miniature circuit breaker two ends according to the control parameter of the master control borad to meet test request；The two stage pressure regulator is arranged between the tested miniature circuit breaker and load, the voltage for adjusting the load two ends according to the control parameter of the master control borad.Because the two stage pressure regulator increases load both end voltage, the electric current for flowing through load is reduced.Meanwhile, load can be reactive load, can further reduce load active loss, and then reduce the active loss of whole system, so as to improve whole system stability.
Description
Technical field
The present invention relates to electric equipment products detection field, more particularly to a kind of miniature circuit breaker detecting system.
Background technology
Miniature circuit breaker (Miniature Circuit Breaker) is also known as miniature circuit breaker (Micro Circuit
Breaker), it is mainly used in exchanging 50HZ or 60HZ, below rated voltage 400V, rated operational current is below 63A circuit,
The effect of overcurrent with protection building line facility and its similar applications, are the important protections of civil buildings safety utilization of electric power
Device, its product quality is directly connected to the security of the lives and property of broad masses of the people, before miniature circuit breaker comes into operation
Quality inspection it is particularly significant.Wherein, for the non-indispensable inspection project of dispatching from the factory of 28 periodic tests of miniature circuit breaker, but it is indispensable for certification
Project.Fig. 1 is referred to, Fig. 1 is the current generating apparatus connection diagram of miniature circuit breaker detecting system in the prior art, existing
The method that miniature circuit breaker is detected in technology is typically that tested miniature circuit breaker 304 is connected with load 305.Due to small-sized open circuit
The internal resistance of device loop is generally milliohm rank, and testing standard requires that open-circuit voltage is more than 30V, therefore need to use larger load,
And load circuit will undertake larger active power, so not only power consumption is larger in load, and long-term use is fragile even
Burn, what influence was tested is normally carried out.
In a word, miniature circuit breaker detection method of the prior art is larger to system loss, therefore, how to reduce load
Power consumption is those skilled in the art's urgent problem to be solved.
The content of the invention
Present invention solves the technical problem that be to provide a kind of miniature circuit breaker detecting system, it is small in prior art to solve
The problem of loss of type breaker detecting system is excessive.
In order to solve the above technical problems, the present invention provides a kind of miniature circuit breaker detecting system, including electric current generating unit
With the master control borad for controlling the electric current generating unit；
The electric current generating unit includes one-level regulator and two stage pressure regulator；
The one-level regulator is arranged between power supply and tested miniature circuit breaker, for the control according to the master control borad
Parameter processed regulates and controls the voltage at the tested miniature circuit breaker two ends to meet test request；
The two stage pressure regulator is arranged between the tested miniature circuit breaker and load, for according to the master control borad
Control parameter adjust the voltage at the load two ends, will with electric current with the voltage for meeting the periodic test of miniature circuit breaker 28
Ask.
Preferably, the temperature data samwpling unit being connected with the master control borad, the temperature data acquisition are further comprised
Unit includes at least one temperature sensor, and the temperature sensor is arranged on the binding post of the tested miniature circuit breaker
Place, the temperature signal for gathering the binding post.
Preferably, warning device is further comprised, the warning device is connected with the master control borad, in the temperature signal
After permissible value, output alarm signal.
Preferably, data feedback unit is further comprised, the data feedback unit is arranged on the tested small-sized open circuit
Loop where device, the practical measurement signals in loop where for gathering the tested miniature circuit breaker are to feed back to the master control
Plate.
Preferably, the data feedback unit includes current sensor, and the current sensor is arranged on described tested small
Loop where type breaker.
Preferably, the data feedback unit also includes voltage sensor, and the voltage sensor is arranged on the one-level
Between regulator and the tested miniature circuit breaker.
Preferably, host computer is further comprised, the host computer is connected with the master control borad, for controlling the master control borad
With receiving the signal from the master control borad.
Preferably, man-machine interaction unit is further comprised, the man-machine interaction unit is connected with the master control borad.
Preferably, the man-machine interaction unit includes touch-screen.
Preferably, the master control borad is especially by electric current generating unit described in Serve Motor Control.
The miniature circuit breaker detecting system that the present invention is provided, employs second voltage regulation, and tested miniature circuit breaker is connected to
Between one-level regulator and two stage pressure regulator, the regulation of one-level regulator meets tested miniature circuit breaker both end voltage
Test request, two stage pressure regulator will load both end voltage rise so that the electric current for flowing through load reduces.As can be seen here, this is
System is middle compared with prior art to be tested on the premise of tested miniature circuit breaker both end voltage and loop current reach test request
The mode of miniature circuit breaker and load in series, reduces the electric current for flowing through load, so as to reduce the power consumption in load.Meanwhile,
Load can be reactive load, can further reduce load active loss, and then reduce the active loss of whole system, so as to carry
High whole system stability.
Brief description of the drawings
Fig. 1 is the current generating apparatus connection diagram of miniature circuit breaker detecting system in the prior art；
The miniature circuit breaker detecting system schematic diagram that Fig. 2 is provided for the first embodiment of the invention；
Fig. 3 is the connection diagram of the electric current generating unit of miniature circuit breaker detecting system shown in Fig. 2；
The miniature circuit breaker detecting system schematic diagram that Fig. 4 is provided by second of embodiment of the invention；
The miniature circuit breaker detecting system schematic diagram that Fig. 5 is provided for the third embodiment of the invention；
Fig. 6 is the connection diagram of the electric current generating unit of miniature circuit breaker detecting system shown in Fig. 5；
The miniature circuit breaker monitoring system schematic diagram that Fig. 7 is provided for the 4th kind of embodiment of the invention；
The miniature circuit breaker detecting system schematic diagram that Fig. 8 is provided for the 5th kind of embodiment of the invention.
Embodiment
In order that those skilled in the art better understood when the present invention program, below in conjunction with the accompanying drawings and specific implementation
The present invention is described in further detail for mode.Obviously, described embodiment is only a part of embodiment of the invention, and
It is not all of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, belong to the scope of the present invention.
The core of the present invention is to provide a kind of miniature circuit breaker detecting system, and it is in miniature circuit breaker detection process is met
On the basis of requirement to test voltage and test current, load power consumption is relatively low, and system loss is relatively low.
Embodiment one
It refer to Fig. 2 and Fig. 3, the miniature circuit breaker detection that Fig. 2 is provided for the first embodiment in the present invention
System schematic；Fig. 3 is the connection diagram of the electric current generating unit of miniature circuit breaker detecting system shown in Fig. 2.
The miniature circuit breaker detecting system that the first embodiment of the invention is provided includes master control borad 201 and electric current is sent out
Raw unit 202.Electric current generating unit 202 includes one-level regulator 301 and two stage pressure regulator 302.Wherein, one-level pressure regulation is filled
Put 301 to be arranged between power supply 303 and tested miniature circuit breaker 304, for regulating and controlling tested according to the control parameter of master control borad 201
The voltage at the two ends of miniature circuit breaker 304 is to meet test request；Two stage pressure regulator 302 is arranged on tested miniature circuit breaker 304
Between load 305, for adjusting the voltage for loading 305 two ends according to the control parameter of master control borad 201 to meet test request.
Master control borad 201 is used for control electric current generating unit 202.
It should be noted that the voltage at 305 two ends of the adjustment load of two stage pressure regulator 302 is specially 305 liang of peak load
The voltage at end, to cooperate with one-level regulator 301 to meet the requirement of the periodic test of miniature circuit breaker 28.Master control borad 201 can be with
It is made up of Digital Signal Processing DSP and complex programmable logic device (CPLD), the processing of baseband signal is realized with DSP, CPLD is used
Related logical operation is realized, so can both ensure conversion speed, control accuracy can also be improved.Master control borad 201 exists
In real work, it can be also used for receiving input signal, regulation one-level regulator 301 and two stage pressure regulator 302 and basis
Test requirements document output current.Master control borad 201 can also be realized to detection, and detection process and testing result are locally stored, really
Protect data safety.In specific implementation, local datastore can be carried out by EEPROM EEPROM.
In actual applications, the application of power supply 303 power network is inputted 220V or 380V inputs, one is controlled by master control borad 201
The tested both end voltage of miniature circuit breaker 304 is adjusted to test voltage by level regulator 301, is cost-effective, can also be adjusted one-level
Pressure device 301 is arranged to fix no-load voltage ratio output such as 220V/30V.
The miniature circuit breaker detecting system that the present embodiment is provided, by two stage pressure regulator peak load both end voltage,
On the premise of tested miniature circuit breaker both end voltage and loop current reach test request, it is middle compared with prior art will be tested small
The mode of type breaker and load in series, reduces the electric current for flowing through load, so as to reduce the power consumption in load.Meanwhile, bear
It is reactive load to carry, and can further reduce load active loss, and then reduces the active loss of whole system, so as to improve
Whole system stability.
Embodiment two
In miniature circuit breaker detection experiment, it is desirable to whether test the temperature rise of binding post of miniature circuit breaker beyond permission
Value.Generally temperature rise permissible value is 15K.Prior art just measures quilt in practical operation in last cycle of experiment
The temperature rise of miniature circuit breaker binding post is surveyed, the tested miniature circuit breaker binding post of several cycles before the test is often produced
Temperature rise exceedes permissible value already, and testing staff does not know, proceeds the situation of follow-up test, when can thus waste
Between and the energy.The temperature rise of miniature circuit breaker binding post is tested in longer miniature circuit breaker detection experiment is scheduled to last it is to monitor
No to exceed permissible value, the present invention provides second of embodiment.
Fig. 4 is refer to, Fig. 4 illustrates for a miniature circuit breaker detecting system of second of embodiment of the invention
Figure.
On the basis of the first embodiment, as preferred embodiment, the present embodiment further comprises temperature
Degrees of data collecting unit 401, temperature data samwpling unit 401 is connected with master control borad 202, and temperature data samwpling unit 401 includes
At least one temperature sensor 402.Temperature sensor 402 is arranged at the binding post of tested miniature circuit breaker 304, for adopting
Collect the temperature signal of binding post.
As can be seen here, the temperature at the wiring of miniature circuit breaker 304 is gathered in the present embodiment in real time by temperature sensor,
So as to find that miniature circuit breaker 304 whether there is the problem of temperature is too high in time.Cause small-sized open circuit when temperature is too high
There is exception in device 304, during phenomenon of such as threading off, can stop test in time, so as to improve testing efficiency, it is to avoid resource wave
The problem of taking.
In actual applications, master control borad 201 can set the acquisition mode of temperature data samwpling unit 401, can set
Into the temperature signal of continuous acquisition binding post, cycle collection can also be arranged to, can also be set and gathered according to the test period
Mode.Temperature sensor 402 can be thermocouple.In addition, the quantity of temperature sensor 402 can be according to the number of actual samples point
Depending on amount, the present embodiment is repeated no more.
Preferably, temperature data samwpling unit 401 can include multiple temperature acquisition loops and modulate circuit, pass through control
Digital control simulant electronic switch gates different temperature acquisition loops, realizes extension and the Thermocouple Temperature Signal of A/D ports
Collection, then temperature signal is fed back to by master control borad 201 by modulate circuit.
Preferably, for said temperature data acquisition unit 401, it may further include warning device 403.Warning device
403 are connected with master control borad 202, the output alarm signal after temperature signal exceeds permissible value.
In actual applications, warning device 403 can be that LED can also be buzzer, and such as temperature signal is beyond permission
Value, the control of master control borad 201 starts warning device and/or is automatically stopped experiment.
The miniature circuit breaker detecting system that the present embodiment is provided increased warning device on the basis of above-described embodiment,
Tested miniature circuit breaker binding post temperature signal can be gathered in miniature circuit breaker detection process of the test, permitted when temperature exceedes
When being worth perhaps, can and alarm, facilitate testing staff in time eliminate substandard product, improve test efficiency, it is to avoid waste.
Embodiment three
Fig. 5 is a miniature circuit breaker detecting system schematic diagram of the third embodiment of the invention.At the first
On the basis of embodiment, as preferred embodiment, the third embodiment of the invention further comprises number
According to feedback unit 501.
Data feedback unit 501 is arranged on the tested place loop of miniature circuit breaker 304, for gathering tested miniature circuit breaker
The practical measurement signals at 304 places loop are to feed back to master control borad 201.
It should be noted that the practical measurement signals that data acquisition unit 501 is gathered are specially to flow through tested small-sized open circuit
The actual current of device 304, can also include the actual electricity that the two ends of miniature circuit breaker 304 are tested after one-level regulator 301
Pressure.
Fig. 6 is a connection diagram of the electric current generating unit of miniature circuit breaker detecting system shown in Fig. 5.
As preferred embodiment, data feedback unit 501 can include current sensor 601, be arranged on tested small
The place loop of type breaker 304, for gathering the actual current in the tested place loop of miniature circuit breaker 304 to feed back to master control borad
201.Data feedback unit 501 can also include voltage sensor 602, be arranged on one-level regulator 301 and tested small-sized disconnected
Between road device 304, for gathering the virtual voltage at the tested two ends of miniature circuit breaker 304 to feed back to master control borad 201.
The miniature circuit breaker detecting system that the present embodiment is provided, the reality that master control borad can be fed back by data feedback unit
Border measurement signal adjusts the size of output voltage and electric current, so as to improve the accuracy of miniature circuit breaker detection experiment.
Example IV
Fig. 7 is refer to, Fig. 7 illustrates for a miniature circuit breaker detecting system of the 4th kind of embodiment of the present invention
Figure.
On the basis of the first embodiment, as preferred embodiment, the 4th kind of the present invention is embodied
Mode further comprises host computer 701.Host computer 701 is connected with master control borad 201, for controlling master control borad 201 and reception to come from
The signal of master control borad 201.
In the present embodiment, host computer 701 can be also used for display information.For example, host computer 701 can control small-sized open circuit
Device detects test process, can show testing result, can also receive the signal etc. of testing staff's input.
The miniature circuit breaker detecting system that 4th kind of embodiment of the invention is provided, by host computer, detects people
Member can realize the whole detecting system of remote control.
Embodiment five
Fig. 8 is refer to, Fig. 8 illustrates for a miniature circuit breaker detecting system of the 5th kind of embodiment of the present invention
Figure.
On the basis of the first embodiment, as preferred embodiment, the 5th kind of the present invention is embodied
Mode further comprises man-machine interaction unit 801.
In specific implementation, man-machine interaction unit 801 can receive the detection requirement of testing staff's input, checking detection people
Identity or display testing result of member etc..Preferably, man-machine interaction unit 801 can use touch-screen, can so improve
The utilization rate of whole system resource and simplified system unit.
The miniature circuit breaker detecting system that the present embodiment is provided, by man-machine interaction unit, testing staff can be more
Easily control whole system.
On the basis of above-mentioned embodiment and preferred embodiment, master control borad 201 can specifically pass through servo
Motor carrys out the one-level regulator 301 and two stage pressure regulator 302 of control electric current generating unit 202., can be with by servomotor
Improve governing speed and precision.
It should be noted that for the communication interface in the specific embodiment of the invention, following several interfaces can be used,
One kind is used for directly communicating with miniature circuit breaker experiment, such as directly receives Test Information；One kind is used for and other interactive devices
It is in communication with each other, the man-machine interaction unit in such as the 5th kind embodiment can be realized man-machine interaction by touch-screen, realize examination
Test the transmission of information and the input of test command etc.；Also a kind of extension coffret of achievable data, such as external linkage
GPRS module, realizes being wirelessly transferred for data.
The embodiment to miniature circuit breaker detecting system provided by the present invention is described in detail above.This
Text applies specific case and the principle and embodiment of the present invention is set forth, above embodiment and embodiment
Illustrate the core concept for being only intended to help to understand the present invention.It should be pointed out that coming for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and modified
Also fall into the protection domain of the claims in the present invention.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One operation makes a distinction with another operation, and not necessarily requires or imply these entities or exist between operating any
This actual relation or order.Moreover, the similar word such as term " comprising " so that unit, equipment including a series of key elements
Or system not only includes those key elements, but also other key elements including being not expressly set out, or also include being this list
Member, equipment or the intrinsic key element of system.
Claims (10)
1. a kind of miniature circuit breaker detecting system, it is characterised in that including electric current generating unit and for controlling the electric current to send out
The master control borad of raw unit；
The electric current generating unit includes one-level regulator and two stage pressure regulator；
The one-level regulator is arranged between power supply and tested miniature circuit breaker, for being joined according to the control of the master control borad
Number regulates and controls the voltage at the tested miniature circuit breaker two ends to meet test request；
The two stage pressure regulator is arranged between the tested miniature circuit breaker and load, for the control according to the master control borad
The voltage at two ends is loaded described in parameter adjustment processed, to meet the voltage and current requirements of the periodic test of miniature circuit breaker 28.
2. system according to claim 1, it is characterised in that further comprise the temperature data being connected with the master control borad
Collecting unit, the temperature data samwpling unit includes at least one temperature sensor, and the temperature sensor is arranged on described
At the binding post of tested miniature circuit breaker, the temperature signal for gathering the binding post.
3. system according to claim 2, it is characterised in that further comprise warning device, the warning device and institute
State master control borad connection, after the temperature signal exceeds permissible value, output alarm signal.
4. system according to claim 1, it is characterised in that further comprise data feedback unit, the data feedback
Unit is arranged on loop where the tested miniature circuit breaker, the reality in loop where for gathering the tested miniature circuit breaker
Measurement signal is to feed back to the master control borad.
5. system according to claim 4, it is characterised in that the data feedback unit includes current sensor, described
Current sensor is arranged on loop where the tested miniature circuit breaker.
6. system according to claim 5, it is characterised in that the data feedback unit also includes voltage sensor, institute
Voltage sensor is stated to be arranged between the one-level regulator and the tested miniature circuit breaker.
7. system according to claim 1, it is characterised in that further comprise host computer, the host computer and the master
Plate connection is controlled, for controlling the master control borad with receiving the signal from the master control borad.
8. system according to claim 1, it is characterised in that further comprise man-machine interaction unit, the man-machine interaction
Unit is connected with the master control borad.
9. system according to claim 8, it is characterised in that the man-machine interaction unit includes touch-screen.
10. the system according to claim 1-9 any one, it is characterised in that the master control borad is especially by servo electricity
Machine controls the electric current generating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647816.7A CN107290660A (en) | 2017-08-01 | 2017-08-01 | A kind of miniature circuit breaker detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647816.7A CN107290660A (en) | 2017-08-01 | 2017-08-01 | A kind of miniature circuit breaker detecting system |
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| Publication Number | Publication Date |
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| CN107290660A true CN107290660A (en) | 2017-10-24 |
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ID=60104596
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| CN201710647816.7A Pending CN107290660A (en) | 2017-08-01 | 2017-08-01 | A kind of miniature circuit breaker detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444739A (en) * | 2019-08-29 | 2021-03-05 | 中车长春轨道客车股份有限公司 | Testing device |
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