CN205844484U - A kind of portable high-pressure breaker mechanic property tester - Google Patents
A kind of portable high-pressure breaker mechanic property tester Download PDFInfo
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- CN205844484U CN205844484U CN201620802750.5U CN201620802750U CN205844484U CN 205844484 U CN205844484 U CN 205844484U CN 201620802750 U CN201620802750 U CN 201620802750U CN 205844484 U CN205844484 U CN 205844484U
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Abstract
The open a kind of portable high-pressure breaker mechanic property tester of this utility model, contacting controling circuit, sub-gate control circuit, signal acquisition circuit, photoelectric coupled circuit, SD card module, display module, real-time clock module and key-press module are connected with master controller respectively, the input of 3 photoelectric coupled circuit connects A phase respectively, B phase, C phase fracture signal, Hall current sensor and linear displacement transducer are connected with signal acquisition circuit respectively, the outfan of contacting controling circuit connects closing coil, the outfan of sub-gate control circuit connects switching winding, 2 Hall current sensors are respectively used to the electric current gathering closing coil with switching winding, 3 linear displacement transducers are respectively used to gather A phase, B phase, C phase contact travel, aforementioned currents value and stroke value all send into signal acquisition circuit.This kind of tester can improve the problem that existing test platform operating process is many, wiring is complicated, cost is high.
Description
Technical field
This utility model relates to a kind of test device, particularly to a kind of High-voltage Circuit Breaker Mechanical Characteristic Tester.
Background technology
Growing along with intelligent grid, constantly proposes new requirement to the reliability service of electrical equipment.High pressure open circuit
Device is electric equipment most important, the most complicated in power system, and it plays in power system and controls and the pivotal role of protection.
The maximum feature of chopper is exactly load current and short circuit current in disconnecting circuit, and once chopper breaks down, and easily causes
Major accident, has a strong impact on the stable operation of power system.And most of faults of chopper occur at mechanical part, including closing
Brake iron core bite, insulated tension pole loosen, and operating mechanism link pin comes off, switching winding scaling loss etc..Coil current waveform can be anti-
Reflect iron core kinestate and the ferrum door bolt being connected with core ejector rod and the state etc. of valve, it is therefore necessary to chopper is closed (dividing)
The mechanical property parameters such as brake cable loop current, moving contact stroke and fracture state detect, and these mechanical property parameters should meet
The standard-required of IEC62271-100-2001:05 and GB1984-2003.By the mechanical property of chopper is measured,
On the one hand may determine that whether the technical parameter of chopper meets regulatory requirements, depend on for the chopper offer that can reliably put into operation
According to, on the other hand can be grasped the mechanical performance of chopper by characteristic test, determine the emphasis of maintenance.
At present, the breaker mechanic property tester of exploitation both at home and abroad, it is primarily present following shortcoming: 1) can only be to test number
According to disposably storing, and machine built-in storage storage finite capacity, it is impossible to meet storage and the inquiry of Large Volume Data；2) measure
In instrument, data process and mostly use PC, measuring instrument all to use serial mode to carry out with the communication of PC, along with test data
Strengthening, transmission data can be increasingly slower, and communication is time-consuming long, it is impossible to meet system requirements；3) tester volume is big, not Portable belt,
Be not suitable for outdoor test.
Utility model content
The purpose of this utility model, is to provide a kind of portable high-pressure breaker mechanic property tester, and it can improve
The problem that existing test platform operating process is many, wiring is complicated, cost is high.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of portable high-pressure breaker mechanic property tester, controls including master controller, contacting controling circuit, separating brake
Circuit, signal acquisition circuit, Hall current sensor, linear displacement transducer, photoelectric coupled circuit, SD card module, display module, reality
Time clock module and key-press module, wherein, contacting controling circuit, sub-gate control circuit, signal acquisition circuit, photoelectric coupled circuit, SD
Card module, display module, real-time clock module and key-press module are connected with master controller respectively, the input of 3 photoelectric coupled circuit
Respectively connect A phase, B phase, C phase fracture signal, Hall current sensor and linear displacement transducer respectively with signal acquisition circuit
Connecting, the outfan of contacting controling circuit connects closing coil, and the outfan of sub-gate control circuit connects switching winding, and 2 suddenly
Your current sensor is respectively used to the electric current gathering closing coil with switching winding, and 3 linear displacement transducers are respectively used to adopt
Collection A phase, B phase, C phase contact travel, aforementioned currents value and stroke value all send into signal acquisition circuit.
Above-mentioned master controller uses TMS320F28335.
Above-mentioned signal acquisition circuit uses 16 high-precision AD 7606 sampling A/D chip.
Above-mentioned photoelectric coupled circuit includes diode, the first optocoupler and pull-up resistor, and the anode of diode connects A phase, B phase or C
Phase fracture signal, the negative electrode of diode connects the first input end of the first optocoupler, and the second input of the first optocoupler connects two poles
The anode of pipe, the first outfan of the first optocoupler connects power supply via pull-up resistor, and the first outfan of the first optocoupler is also connected with
Master controller, the second output head grounding of the first optocoupler.
Above-mentioned photoelectric coupled circuit also includes current-limiting resistance, and current-limiting resistance is connected to A phase, B phase or C phase fracture signal and diode
Anode between.
Above-mentioned contacting controling circuit includes the second optocoupler, voltage follower and solid-state relay, and the first of the second optocoupler is defeated
Entering end and connect power supply, the second input connects master controller, and the first outfan of the second optocoupler connects power supply, and the second outfan is even
Connecing the negative input end of voltage follower, the positive input terminal of voltage follower connects outfan, and the outfan of voltage follower is also
Connecting the positive input terminal of solid-state relay, the negative input end ground connection of solid-state relay, the outfan of solid-state relay connects combined floodgate
Coil.
Above-mentioned SD card module uses the SD card of Jin Shidun 4GB.
SPI communication pattern is used between above-mentioned master controller and SD card module.
Above-mentioned real-time clock module uses DS1302 clock chip.
SPI communication pattern is used between above-mentioned master controller and real-time clock module.
After using such scheme, this utility model, from the standpoint of storage, portability, processing accuracy, utilizes Hall current
(dividing) lock coil current signal is closed in sensor GSM010-GT detection, utilizes linear displacement transducer TS-0050 to detect moving contact row
Journey, and use 16 high-precision AD converter AD7606 to gather above-mentioned signal, it is achieved close (dividing) brake cable loop current, moving contact stroke
Isoparametric measurement, utilizes photoelectric coupled circuit to gather fracture simultaneously and closes point state, it is achieved chopper on/off switch time, on/off switch same period
Property parameter measurement.Additionally, system extends, LCD shows, SD card stores and DS1302 clock circuit, and parameter measurements can be directly perceived
Display is on LCD, and realizes measuring parameter in high volume and measuring the SD card storage in moment.Finally, break with the VD4/CX vacuum of ABB
Road device is test object, and its test result shows, this tester can accurately measure the mechanical property parameter of chopper, thus is
Judge that the performance of chopper provides reliable basis.
Accompanying drawing explanation
Fig. 1 is hardware structure diagram of the present utility model；
Fig. 2 is the circuit diagram of signal acquisition circuit in this utility model；
Fig. 3 is the circuit diagram of photoelectric coupled circuit in this utility model；
Fig. 4 is the circuit diagram of contacting controling circuit in this utility model；
Fig. 5 is the circuit diagram of SD card module in this utility model；
Fig. 6 is the circuit diagram of real-time clock module in this utility model；
Fig. 7 is the flow chart of utility model works；
Fig. 8 is combined floodgate stroke and fracture state curve chart；
Fig. 9 is switching current curve chart；
Figure 10 is separating brake stroke and fracture state curve chart；
Figure 11 is separating brake current curve diagram.
Detailed description of the invention
Below with reference to accompanying drawing, the technical solution of the utility model is described in detail.
As it is shown in figure 1, this utility model provides a kind of portable high-pressure breaker mechanic property tester, including main control
Device, contacting controling circuit, sub-gate control circuit, signal acquisition circuit, Hall current sensor, linear displacement transducer, optocoupler
Circuit, SD card module, display module, real-time clock module and key-press module, wherein, contacting controling circuit, sub-gate control circuit,
Signal acquisition circuit, photoelectric coupled circuit, SD card module, display module, real-time clock module and key-press module respectively with master controller
Connecting, Hall current sensor and linear displacement transducer are connected with signal acquisition circuit respectively, the output of contacting controling circuit
End connects closing coil, and the outfan of sub-gate control circuit connects switching winding, and 2 Hall current sensors are respectively used to gather
Closing coil and the electric current of switching winding, 3 linear displacement transducers are respectively used to gather A phase, B phase, C phase contact travel, front
State current value and stroke value all sends into signal acquisition circuit；Several ingredients therein will be introduced below.
1, signal acquisition circuit
Signal acquisition circuit can use 16 high-precision AD 7606 sampling A/D chip, and it includes second order frequency overlapped-resistable filter, suddenly
The voltage of that current sensor and linear displacement transducer output can be directly accessed the analogue signal input pin of chip, and can
8 tunnel analog channel signals are carried out synchronized sampling, solve TMS320F28335 controller can only realize two paths synchronize adopt
The shortcoming of sample.As in figure 2 it is shown, wherein, DB0～DB15 is 16 bit data bus to AD7606 signal acquisition circuit figure, connects respectively
16 external interface data terminal XD0 to XD15 to DSP.RANGE is analog input scope control foot, when connecting high level,
In the range of can being set to-10～10V by gathering voltage range, CS is chip selection signal end, and BUSY is AD conversion state end, works as BUSY
From high level become low level time, AD conversion terminates, can from control depositor output register read data.AD conversion
Formula is as follows:
Wherein, UoRepresenting sensor output voltage, D represents AD sample magnitude, U1Represent sampling range, and U1=10V.
Pin V1, V2, V3 connect A, B, C three-phase TS-0050 type linear displacement transducer voltage output end, this sensing respectively
The range of device is 51.8mm, and using 10V power voltage supply, i.e. full range voltage is 10V, then correspondence course S is:
Wherein, UoRepresent sensor output voltage；L represents linear displacement transducer full scale, and L=51.8mm；U2Represent
Linear displacement transducer full range voltage value, and U2=10V.
Pin V4, V5 connect the voltage signal of GSM010GT type Hall current sensor conversion output respectively, and sensor is defeated
Go out reference voltage 2.5V, according to the technical parameter of sensor, obtain input/output relation as follows:
Uo=Iin*0.1+2.5
Wherein, IinRepresent input current, i.e. coil current；UoRepresent sensor output voltage.
2, photoelectric coupled circuit
This utility model gathers fracture state by photoelectric coupled circuit, and schematic diagram is as it is shown on figure 3, as a example by A phase, R16 is limited
Leakage resistance, limits optocoupler input current, plays the effect of protection optocoupler.When breaker closing, A phase and ground are connected, optocoupler work
Making, outlet side triode ON, the GPIO10 pin of DSP is low level；Otherwise, optocoupler input side two ends no-voltage is poor, optocoupler
Not working, outlet side audion is not turned on, and the GPIO10 pin of DSP is high level.The change moment point of GPIO10 pin level
It is conjunction (dividing) the lock moment point of chopper.Use optocoupler can realize the isolation between optocoupler input side and master controller, subtract
Few electromagnetic interference.
3, combined floodgate/sub-gate control circuit
Described contacting controling circuit is identical with the structure of sub-gate control circuit and principle.As a example by contacting controling circuit, former
As shown in Figure 4, when TMS320F28335 sends combined floodgate order, in figure, GPIO60 pin is low level to reason, and optocoupler works, and passes through
Voltage follower output voltage, drives solid-state relay work, and closing circuit turns on, and chopper carries out feed motion；Otherwise,
When GPIO60 pin is high level, optocoupler does not works, and solid-state relay is not turned on, and mechanism does not carry out feed motion.
4, SD card module
In order to realize the massive store to test parameter, use the SD card of Jin Shidun 4GB that system storage is extended,
The hardware connection figure of SD card is as shown in Figure 5.TMS320F28335 is as main frame, and SD card is from machine, uses SPI communication between the two,
SPISOMIA be main frame input/from machine output lead, SPISIMOA be main frame output/from the defeated line of machine, SPICLKA is clock signal,
SPISTEA is chip selection signal.
5, real-time clock module
In order to the testing time is carried out record, facilitating analysis and the integration of later data, the present embodiment uses DALLAS public
Department release DS1302 clock chip, record operation second, point, time, the date, the moon, year information.DS1302 clock circuit such as Fig. 6
Shown in, VCC1 is system main power source, and VCC2, as the stand-by power supply of system, can enable internal tiny stream thread charger and delay standby
In the service life of battery, between DS1302 and TMS320F28335, use SPI communication pattern.RST is reset terminal, permits during high level
Permitted I/O port and carried out the transmission of data；I/O is serial date transfer/outfan；CLK is synchronous clock pulse end, and rising edge will
I/O end data step-by-step write DS1302, trailing edge makes DS1302 step-by-step output data to I/O fracture.
During utility model works, flow chart refers to shown in Fig. 7, after system electrification, initializes system, including
RS1302 clock chip, Liquid Crystal Module, the I/O mouth of SD card module initialize, the initialization of the internal SPI module of master controller, fixed
Time device T0 initialization, the intervalometer sampling period is set as 0.1ms；After initialization completes, perform corresponding operating according to button,
Call button inquiry subprogram, complete the setting of test parameter, mainly include setting and the conjunction in involutory (point) lock sampling time
The selection of (dividing) lock speed definition mode；Then wait that controller sends conjunction (dividing) lock control command, as a example by closing a floodgate, works as detection
When ordering to closing a floodgate, call RS1302 timing routine, operation of recording moment, call combined floodgate sampling routine simultaneously, gather closing line
The electric current of circle, stroke, three-phase fracture state information, when sampling number reaches setting value, and sampling terminates；Call parameters calculates sub-journey
Sequence, calculate out away from, close (divide) lock time, the conjunction characterisitic parameter such as (dividing) lock speed, synchronism；Call liquid crystal display program to show
Fracture signal, stroke curve, current waveform and the report of on/off switch parameter；Call SD card subprogram storage current value, stroke value
And characterisitic parameter.
After system electrification, arranged by button completion system parameter, select type and conjunction (dividing) lock velometer of chopper
Calculation mode, is then sent conjunction (dividing) lock control command by master controller TMS320F28335, and chopper carries out closing (dividing) lock action,
To conjunction (dividing) the lock three-phase moving contact stroke of chopper, close (dividing) brake cable loop current, fracture state carries out synchronous detecting.Wherein,
Three-phase moving contact stroke signal uses TS-0050 type linear displacement transducer to be converted to three road voltage signals, closes (dividing) coil electricity
Stream signal uses GSM010GT type Hall current sensor to be converted to voltage signal, and these voltage analogs are all adopted by AD7606
Collect and be converted to digital quantity；Three-phase fracture state signal uses photoelectric coupled circuit to be converted to the on-off model of low and high level.Then
By TMS320F28335 synchronous acquisition digital quantity and on-off model, define according to table 1 High Voltage Breaker Mechanical Characteristic parameter, calculate
Go out chopper close (divide) lock time, conjunction (dividing) lock speed, stroke, synchronism, open away from etc. characterisitic parameter.System is measuring chopper
Utilize RS1302 clock module record to measure the time occurred while mechanical property parameter, measure after terminating, by mechanical property
Parameter and measurement time showing and are saved in SD card memory module on LCD240128.Finally, tester is taken for convenience
Band, system power supply module uses high capacity cell to power.
Table 1
With the VD4/CX 12.12.32 vacuum circuit breaker of ABB for test object, the stroke of (dividing) lock, fracture are closed in test
State, coil current information show on LCD, as shown in Fig. 8～Figure 11.Test by repeatedly closing (dividing) lock, closed (dividing)
Lock characterisitic parameter, and test data with the GYT-07 characteristic tester of Xiamen Guo Yi Science and Technology Ltd. and contrast, such as table 2-3
Shown in, obtaining clearance between open contacts error and be 1.09% to the maximum, journey error is 1.24% to the maximum, closes (dividing) lock time maximum error and is
0.64%, synchronism maximum error is 3.61%, and closing (dividing) brake current maximum maximum error is 2.33%.Experimental result table
Bright, the test result error of native system is less, and precision is higher, can correctly reflect the mechanical property of chopper.
Table 2
Table 2
Summary, this utility model one portable high-pressure breaker mechanic property tester, collection controls, tests, counts
Process according to display, data, figure shows, data are stored as one, can control chopper and close (dividing) lock action, can realize height and break
Road device closes (dividing) brake cable loop current, moving contact stroke, fracture state signal synchronous collection, can save the data on SD card, disappear
Except the dependence to PC.Test result precision is high, and simple interface is the most easily operated, and system stability is good.System can be accurately
Ground test chopper mechanical property, thus for repair based on condition of component provide reliable foundation, have boundless market prospect with
Research Significance.
Above example only illustrates technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, every according to the technological thought that the utility model proposes, any change done on the basis of technical scheme, each fall within this reality
Within the scope of novel protected.
Claims (10)
1. a portable high-pressure breaker mechanic property tester, it is characterised in that: include master controller, shutting-brake control electricity
Road, sub-gate control circuit, signal acquisition circuit, Hall current sensor, linear displacement transducer, photoelectric coupled circuit, SD card module,
Display module, real-time clock module and key-press module, wherein, contacting controling circuit, sub-gate control circuit, signal acquisition circuit,
Photoelectric coupled circuit, SD card module, display module, real-time clock module and key-press module are connected with master controller respectively, 3 optocoupler electricity
The input on road connects A phase, B phase, C phase fracture signal respectively, Hall current sensor and linear displacement transducer respectively with letter
Number Acquisition Circuit connects, and the outfan of contacting controling circuit connects closing coil, and the outfan of sub-gate control circuit connects separating brake
Coil, 2 Hall current sensors are respectively used to the electric current gathering closing coil with switching winding, 3 linear displacement transducers
Being respectively used to gather A phase, B phase, C phase contact travel, aforementioned currents value and stroke value all send into signal acquisition circuit.
2. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 1, it is characterised in that: described master control
Device processed uses TMS320F28335.
3. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 1, it is characterised in that: described signal
Acquisition Circuit uses 16 high-precision AD 7606 sampling A/D chip.
4. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 1, it is characterised in that: described optocoupler
Circuit includes diode, the first optocoupler and pull-up resistor, and the anode of diode connects A phase, B phase or C phase fracture signal, diode
Negative electrode connect the first input end of the first optocoupler, the second input of the first optocoupler connects the anode of diode, the first optocoupler
The first outfan connect power supply via pull-up resistor, the first outfan of the first optocoupler is also connected with master controller, the first optocoupler
The second output head grounding.
5. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 4, it is characterised in that: described optocoupler
Circuit also includes current-limiting resistance, and current-limiting resistance is connected between A phase, B phase or C phase fracture signal and the anode of diode.
6. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 1, it is characterised in that: described combined floodgate
Control circuit includes the second optocoupler, voltage follower and solid-state relay, the first input end connection power supply of the second optocoupler, second
Input connects master controller, and the first outfan of the second optocoupler connects power supply, and the second outfan connects the negative of voltage follower
Input, the positive input terminal of voltage follower connects outfan, and the outfan of voltage follower is also connected with solid-state relay
Positive input terminal, the negative input end ground connection of solid-state relay, the outfan of solid-state relay connects closing coil.
7. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 1, it is characterised in that: described SD card
Module uses the SD card of Jin Shidun 4GB.
8. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 7, it is characterised in that: described master control
SPI communication pattern is used between device processed and SD card module.
9. portable high-pressure breaker mechanic property tester as claimed in claim 1 a kind of, it is characterised in that: described in real time
Clock module uses DS1302 clock chip.
10. a kind of portable high-pressure breaker mechanic property tester as claimed in claim 9, it is characterised in that: described master
SPI communication pattern is used between controller and real-time clock module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620802750.5U CN205844484U (en) | 2016-07-28 | 2016-07-28 | A kind of portable high-pressure breaker mechanic property tester |
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| CN201620802750.5U CN205844484U (en) | 2016-07-28 | 2016-07-28 | A kind of portable high-pressure breaker mechanic property tester |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950492A (en) * | 2017-03-12 | 2017-07-14 | 武汉市欧睿科技有限公司 | Portable high-pressure switchs dynamic characteristics tester |
| CN106950491A (en) * | 2017-03-11 | 2017-07-14 | 武汉市欧睿科技有限公司 | Portable beaker dynamic characteristics tester |
| CN108008294A (en) * | 2017-12-29 | 2018-05-08 | 川铁电气（天津）股份有限公司 | A kind of experimental provision and experimental method of Intelligent isolation switch and breaker |
| CN109425826A (en) * | 2017-08-21 | 2019-03-05 | 国网上海市电力公司 | A kind of switchgear intelligent measurement terminal |
| CN109507581A (en) * | 2018-11-10 | 2019-03-22 | 广西电网有限责任公司电力科学研究院 | The mode of connection of high-voltage circuitbreaker automatic detection |
| CN111707891A (en) * | 2020-06-17 | 2020-09-25 | 广东电网有限责任公司 | Secondary circuit monitor |
| CN111751090A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Device and method for measuring mechanical characteristics of circuit breaker |
| CN112698190A (en) * | 2020-11-24 | 2021-04-23 | 河南省高压电器研究所有限公司 | Signal acquisition device for high-voltage circuit breaker test |
-
2016
- 2016-07-28 CN CN201620802750.5U patent/CN205844484U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950491A (en) * | 2017-03-11 | 2017-07-14 | 武汉市欧睿科技有限公司 | Portable beaker dynamic characteristics tester |
| CN106950492A (en) * | 2017-03-12 | 2017-07-14 | 武汉市欧睿科技有限公司 | Portable high-pressure switchs dynamic characteristics tester |
| CN109425826A (en) * | 2017-08-21 | 2019-03-05 | 国网上海市电力公司 | A kind of switchgear intelligent measurement terminal |
| CN108008294A (en) * | 2017-12-29 | 2018-05-08 | 川铁电气（天津）股份有限公司 | A kind of experimental provision and experimental method of Intelligent isolation switch and breaker |
| CN109507581A (en) * | 2018-11-10 | 2019-03-22 | 广西电网有限责任公司电力科学研究院 | The mode of connection of high-voltage circuitbreaker automatic detection |
| CN111751090A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Device and method for measuring mechanical characteristics of circuit breaker |
| CN111707891A (en) * | 2020-06-17 | 2020-09-25 | 广东电网有限责任公司 | Secondary circuit monitor |
| CN112698190A (en) * | 2020-11-24 | 2021-04-23 | 河南省高压电器研究所有限公司 | Signal acquisition device for high-voltage circuit breaker test |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20180728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |