CN105445658A - Contactor performance detection device - Google Patents
Contactor performance detection device Download PDFInfo
- Publication number
- CN105445658A CN105445658A CN201510933109.5A CN201510933109A CN105445658A CN 105445658 A CN105445658 A CN 105445658A CN 201510933109 A CN201510933109 A CN 201510933109A CN 105445658 A CN105445658 A CN 105445658A
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- contact
- contactor
- chip microcomputer
- circuit
- current
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a contactor performance detection device. The contactor performance detection device comprises a single-chip microcomputer, a control touch screen, an automatic voltage regulation circuit, a contact on-off signal acquisition circuit, and a constant flow source circuit. The single-chip microcomputer can be used to control and coordinate other function modules. The control touch screen can be used to acquire various voltage signals and various current signals, and can be used to control the motion of relays having various functions. The single-chip microcomputer can be connected with a computer, and can be used for the transmission of the testing data, and then the testing data can be stored in the computer, and the testing reports can be printed. The touch screen is used for displaying different data, and at the same time, the user can set the parameters and carry out the operations of using the functions of the buttons by the touch screen. The automatic voltage regulation circuit is used to realize the automatic voltage regulation function and the switching function of the AC power supply and the DC power supply of the device. The contact on-off signal acquisition circuit can be used to detect whether the contact is switched on. The constant flow source circuit can be used to detect the contact resistance value of the contact. The contactor performance detection device is advantageous in that a lot of measuring functions are provided, the measuring way is simple; the automatic testing can be realized, and the testing results can be stored and printed, and the communication with the host computer can be realized.
Description
Technical field
The present invention relates to a kind of device for detecting performance of contactor, especially relating to track traffic contactor used when overhauling, the pick-up unit of the test such as the contactor charge passed that must carry out, coil voltage fluctuation check, the measurement of contact resistance value.
Background technology
Routine carries out contactor charge passed, coil voltage fluctuation check, contact resistance value is measured is all different tests, change different equipment, also need rewiring, so cannot test fast.The data of 3 tests simultaneously tested, cannot combine automatically.
Summary of the invention
The object of the invention is for track traffic contactor used when overhauling, the contactor charge passed that must carry out, coil voltage fluctuation check, contact resistance value measure these 3 tests, produce one contactor device for detecting performance targetedly, can fast, convenient, carry out these 3 tests accurately.
For achieving the above object, the invention provides a kind of device for detecting performance of contactor, it is characterized in that comprising:
A single-chip microcomputer, controls, coordinates other each functional modules; Control touch-screen, and gather various voltage, current signal, control the actuating of relay of various function simultaneously; Meanwhile, this single-chip microcomputer can be connected with computing machine, carries out the transmission of test figure, stores data in computing machine, and printable test report;
A touch-screen, for showing various data, user carries out the setting of parameter and the operation of various keypress function by touch-screen simultaneously;
An automatic voltage regulating circuit, for the interchange of implement device and the automatic Regulation kinetic energy of direct supply and handoff functionality;
Whether a contact make-and-break signal Acquisition Circuit, connect for detection contact;
A constant-current source circuit, for the contact resistance value of detection contact.
Described automatic voltage regulating circuit comprises electric voltage regulator, rectifier bridge, electric capacity, voltage sensor, contactor, rectifier bridge is delivered in the output of electric voltage regulator, after full-bridge rectification, filtering again through electric capacity exports direct supply, according to user's setting, select with contactor that final what export is direct supply or AC power.
Described contact make-and-break signal Acquisition Circuit, it is the contact one end of positive source being received tested contactor, signal is delivered to sample circuit by p-wire by the other end, if during tested contactor coil adhesive, contact there is signal be switched to sample circuit, single-chip microcomputer will judge this time as connection, if contact does not have signal send, then single-chip microcomputer will judge this time as access failure; Meanwhile, single-chip microcomputer according to the number of times of the tested contactor adhesive of set value calculation, and records the number of times of the corresponding access failure of each contact.
Described constant-current source circuit comprises rectifier bridge, input filter inductance, input filter capacitor, high-frequency transformer, field effect transistor, diode, output inductor, output filter capacitor, current sensor, voltage sensor, AC power is after rectifier bridge, become the two ends that direct supply is added in high-frequency transformer, the break-make of Single-chip Controlling field effect transistor, make high-frequency transformer export square wave, be only added on the contact of connection after diode, output inductor, output filter capacitor; By the feedback of the current transformer on circuit, Single-chip Controlling field effect transistor break-make, makes constant output current in setting value, and single-chip microcomputer, by measuring the touch voltage of contact, divided by constant current value, can calculate the contact resistance value of contact.
Advantage of the present invention:
1, measurement function is many: with this device can carry out contactor charge passed, coil voltage fluctuation check, contact resistance value measure these 3 tests.
2, metering system is simple: after being carefully connected the wire by tested contactor, by setting and the control of touch-screen, can realize test.Realize test automatically and store test results, also printable test result.
3, can with upper machine communication: this device can be connected by computing machine, and carries out the transmission of data by the software of host computer, and the operation also carrying out this device by host computer is tested.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is the circuit diagram of automatic voltage regulating circuit;
Fig. 3 is the circuit diagram of contact make-and-break signal Acquisition Circuit;
Fig. 4 is the circuit diagram of constant-current source circuit.
Embodiment
With reference to Fig. 1, the present invention includes single-chip microcomputer, touch-screen, driving circuit, signal sample circuit, constant-current source circuit.The selection of pilot project can be carried out from touch-screen, the setting of concrete test parameters can be carried out simultaneously to this pilot project.(as the test number (TN) of contactor charge passed; The voltage type of coil voltage fluctuation check, the upper lower limit value of voltage fluctuation; Contact resistance value measure measuring current value etc.) single-chip microcomputer also the data of test can be sent to touch-screen display.(as good connection number of times, the bad connection number of times of contactor charge passed; Contact resistance value etc.) single-chip microcomputer controls the automatic adjustment of power supply by driving circuit, and the adhesive of test contactor.By signal sample circuit, gather electric current, voltage, on-off model as the feedback signal regulated.Single-chip microcomputer, by exporting PWM waveform, controls the work of constant-current source circuit.
With reference to Fig. 2, single-chip microcomputer is rotated forward by the adjustment motor controlling electric voltage regulator, reversing realizes the rise and fall of power supply.When user's Selection experiment contactor coil power supply is for exchanging, KM1 adhesive, KM2 discharges, and output point exchanges regulated power supply.When user's Selection experiment contactor coil power supply is direct current, pressure regulator exports through rectifier bridge rectification, and filter capacitor C1 filters into direct current, KM2 adhesive, and KM1 discharges, output point adjustable power of direct current.TV1 and TV2 is voltage sensor, and the magnitude of voltage of power of alterating and direct current is fed back to single-chip microcomputer, makes single-chip microcomputer can carry out pressure regulator adjustment accurately.
With reference to Fig. 3, the coil power of test contactor is picked out by device, and one end of contactor connection terminal connects+24V power supply simultaneously, the test port of other end access device.If during tested contactor coil adhesive, contact has+24V signal be switched to sample circuit, single-chip microcomputer will judge this time as connection.If contact does not have+24V signal send, then single-chip microcomputer will judge this time as access failure.
With reference to Fig. 4, constant-current source circuit comprises rectifier bridge, input filter inductance, input filter capacitor, high-frequency transformer, field effect transistor, diode, output inductor, output filter capacitor, current sensor, voltage sensor etc.AC power, after rectifier bridge, becomes the two ends that direct supply is added in high-frequency transformer.The break-make of Single-chip Controlling field effect transistor, makes high-frequency transformer export square wave, is added on the contact of connection after diode, output inductor, output filter capacitor; By the feedback of the current transformer on circuit, Single-chip Controlling field effect transistor break-make, makes constant output current in setting value.Single-chip microcomputer, by measuring the touch voltage of contact, divided by constant current value, can calculate the contact resistance value of contact.
Claims (4)
1. a device for detecting performance for contactor, is characterized in that comprising:
A single-chip microcomputer, controls, coordinates other each functional modules; Control touch-screen, and gather various voltage, current signal, control the actuating of relay of various function simultaneously; Meanwhile, this single-chip microcomputer can be connected with computing machine, carries out the transmission of test figure, stores data in computing machine, and printable test report;
A touch-screen, for showing various data, user carries out the setting of parameter and the operation of various keypress function by touch-screen simultaneously;
An automatic voltage regulating circuit, for the interchange of implement device and the automatic Regulation kinetic energy of direct supply and handoff functionality;
Whether a contact make-and-break signal Acquisition Circuit, connect for detection contact;
A constant-current source circuit, for the contact resistance value of detection contact.
2. the device for detecting performance of a kind of contactor according to claim 1, it is characterized in that: described automatic voltage regulating circuit comprises electric voltage regulator, rectifier bridge, electric capacity, voltage sensor, contactor, rectifier bridge is delivered in the output of electric voltage regulator, after full-bridge rectification, filtering again through electric capacity exports direct supply, according to user's setting, select with contactor that final what export is direct supply or AC power.
3. the device for detecting performance of a kind of contactor according to claim 1, it is characterized in that: described contact make-and-break signal Acquisition Circuit, it is the contact one end of positive source being received tested contactor, signal is delivered to sample circuit by p-wire by the other end, if during tested contactor coil adhesive, contact has signal be switched to sample circuit, single-chip microcomputer will judge this time as connection, if contact does not have signal send, then single-chip microcomputer will judge this time as access failure; Meanwhile, single-chip microcomputer according to the number of times of the tested contactor adhesive of set value calculation, and records the number of times of the corresponding access failure of each contact.
4. the device for detecting performance of a kind of contactor according to claim 1, it is characterized in that: described constant-current source circuit comprises rectifier bridge, input filter inductance, input filter capacitor, high-frequency transformer, field effect transistor, diode, output inductor, output filter capacitor, current sensor, voltage sensor, AC power is after rectifier bridge, become the two ends that direct supply is added in high-frequency transformer, the break-make of Single-chip Controlling field effect transistor, high-frequency transformer is made to export square wave, only diode, output inductor, be added to after output filter capacitor on the contact of connection, by the feedback of the current transformer on circuit, Single-chip Controlling field effect transistor break-make, makes constant output current in setting value, and single-chip microcomputer, by measuring the touch voltage of contact, divided by constant current value, can calculate the contact resistance value of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933109.5A CN105445658B (en) | 2015-12-15 | 2015-12-15 | A kind of device for detecting performance of contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933109.5A CN105445658B (en) | 2015-12-15 | 2015-12-15 | A kind of device for detecting performance of contactor |
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| Publication Number | Publication Date |
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| CN105445658A true CN105445658A (en) | 2016-03-30 |
| CN105445658B CN105445658B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510933109.5A Active CN105445658B (en) | 2015-12-15 | 2015-12-15 | A kind of device for detecting performance of contactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501715A (en) * | 2016-12-14 | 2017-03-15 | 南京工业职业技术学院 | Harmony electric locomotive accessory fan control contactor contacts status monitoring device |
| CN107742980A (en) * | 2017-10-30 | 2018-02-27 | 成都芯源系统有限公司 | Voltage stabilizer, and loop automatic adjusting system and method thereof |
| CN110045272A (en) * | 2018-12-21 | 2019-07-23 | 核动力运行研究所 | Relay test platform composite control apparatus |
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| CN2060239U (en) * | 1989-07-15 | 1990-08-08 | 中山大学 | High-power constant-current supply |
| CN201107383Y (en) * | 2007-11-20 | 2008-08-27 | 陕西永辉测控技术有限公司 | Electric connector intelligent test system |
| CN201255765Y (en) * | 2008-08-11 | 2009-06-10 | 上海南华兰陵电气有限公司 | Automatic test equipment for circuit breaker life characteristic |
| CN102707180A (en) * | 2012-06-28 | 2012-10-03 | 南京南车浦镇城轨车辆有限责任公司 | Ground testing device for electrical element of rail vehicle and testing method of electric element |
| CN105116322A (en) * | 2015-09-11 | 2015-12-02 | 国家电网公司 | System and method for testing circuit breaker auxiliary switch |
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2015
- 2015-12-15 CN CN201510933109.5A patent/CN105445658B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060239U (en) * | 1989-07-15 | 1990-08-08 | 中山大学 | High-power constant-current supply |
| CN201107383Y (en) * | 2007-11-20 | 2008-08-27 | 陕西永辉测控技术有限公司 | Electric connector intelligent test system |
| CN201255765Y (en) * | 2008-08-11 | 2009-06-10 | 上海南华兰陵电气有限公司 | Automatic test equipment for circuit breaker life characteristic |
| CN102707180A (en) * | 2012-06-28 | 2012-10-03 | 南京南车浦镇城轨车辆有限责任公司 | Ground testing device for electrical element of rail vehicle and testing method of electric element |
| CN105116322A (en) * | 2015-09-11 | 2015-12-02 | 国家电网公司 | System and method for testing circuit breaker auxiliary switch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501715A (en) * | 2016-12-14 | 2017-03-15 | 南京工业职业技术学院 | Harmony electric locomotive accessory fan control contactor contacts status monitoring device |
| CN106501715B (en) * | 2016-12-14 | 2019-08-16 | 南京工业职业技术学院 | Harmony electric locomotive accessory fan control contactor contacts status monitoring device |
| CN107742980A (en) * | 2017-10-30 | 2018-02-27 | 成都芯源系统有限公司 | Voltage stabilizer, and loop automatic adjusting system and method thereof |
| CN107742980B (en) * | 2017-10-30 | 2020-01-17 | 成都芯源系统有限公司 | Voltage stabilizer, and loop automatic adjusting system and method thereof |
| CN110045272A (en) * | 2018-12-21 | 2019-07-23 | 核动力运行研究所 | Relay test platform composite control apparatus |
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| Publication number | Publication date |
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| CN105445658B (en) | 2018-09-14 |
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