CN206470305U - Full-automatic temperature rise test low-voltage, high-current generating means - Google Patents
Full-automatic temperature rise test low-voltage, high-current generating means Download PDFInfo
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- CN206470305U CN206470305U CN201621258952.4U CN201621258952U CN206470305U CN 206470305 U CN206470305 U CN 206470305U CN 201621258952 U CN201621258952 U CN 201621258952U CN 206470305 U CN206470305 U CN 206470305U
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000012545 processing Methods 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 11
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 7
- 101100408454 Arabidopsis thaliana PLC6 gene Proteins 0.000 claims description 4
- 101100408456 Arabidopsis thaliana PLC8 gene Proteins 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
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- 230000033228 biological regulation Effects 0.000 description 2
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Abstract
The utility model belongs to experimental rig technical field, more particularly to a kind of full-automatic temperature rise test low-voltage, high-current generating means.The utility model is to be connected by direct current generator with automatic coupling voltage regulator, direct current generator is connected with driver, driver is connected with PLC, automatic coupling voltage regulator is connected by controlling switch with strong current generator, strong current generator is connected with test product, temperature sensor is connected with test product, and temperature sensor is connected with signal processing unit, and current transformer and voltage transformer are connected with strong current generator；Signal processing unit is connected with current transformer, voltage transformer respectively, and the output end of signal processing unit is connected with PLC signal input part.The utility model has the advantages that simple in construction, real-time is good, stability is high, automatization level is strong.
Description
Technical field
The utility model belongs to the technical field of experimental rig and its control method, more particularly to a kind of full-automatic temperature rise examination
Test low-voltage, high-current generating means.
Background technology
Temperature rise test is important pilot project in power equipment type inspection and exfactory inspection, for examining power equipment
Temperature rises situation under regulation working environment.It is exactly its highest by the highest operating ambient temperature that temperature rise value adds power equipment
Operating temperature, in order to ensure the reliability and stability of its work, permission temperature of this maximum operating temperature no more than material
Spend limiting value.Current power equipment temperature rise experimental rig relies on the equipment such as contactor, the time relay, stopwatch, temperature rise recorder,
Experimental rig is complicated, operating process is cumbersome, stability is poor, while testing crew must manually adjust test current and to examination
Test on-the-spot record temperature value.
Utility model content
For above-mentioned the shortcomings of the prior art, the utility model proposes a kind of full-automatic temperature rise test low pressure
High-current generation device.The purpose is to provide it is a kind of have that simple in construction, real-time is good, stability is high, automatization level is strong
Generating means.
In order to reach above-mentioned utility model purpose, the utility model is achieved through the following technical solutions：
Full-automatic temperature rise test low-voltage, high-current generating means, including direct current generator, current transformer, voltage transformer and
Temperature sensor；It is to be connected by the rotating shaft of direct current generator with the control end of automatic coupling voltage regulator, the control end of direct current generator and drive
The output end of dynamic device is connected, and the signal input part of driver is connected with PLC signal output part, the output of automatic coupling voltage regulator
End is connected by controlling switch with the input of strong current generator, and the output end of strong current generator and the electric current of test product are defeated
Enter end to be connected, the measurement end of temperature sensor is connected with the temperature measuring point of test product, the signal output part of temperature sensor
It is connected with the input of the C branch roads of signal processing unit, current transformer is connected with the current measurement end of strong current generator
Connect, the measurement end of voltage transformer is connected with the voltage measurement end of strong current generator；The A branch roads of signal processing unit and electricity
The signal output part of current transformer is connected, and the B branch roads of signal processing unit are connected with the signal output part of voltage transformer,
The output end of signal processing unit is connected with PLC signal input part.
The current transformer is connected with power supply, and the wire of output terminal punching of wherein strong current generator is mutual through overcurrent
The measurement end of sensor, the power positive end of current transformer is connected with the positive voltage output end of power supply, the power supply of current transformer
Negative terminal is connected with the negative voltage output end of power supply, and the ground terminal of current transformer is connected with the ground terminal of power supply, electricity
Signal output terminal, the ground terminal of current transformer are connected as current signal output with the A branch roads of signal processing unit.
The strong current generator output current value includes：Test product current value and test current value.
Advantage and beneficial effect of the present utility model are：
The utility model provides a kind of generating means simple in construction, reasonable in design, the experimental rig using PLC as core,
A key regulation can be carried out according to test current value, whole process of the test electric current is calculated, compared and adjust automatically, by upper in real time
Position machine realizes the remote monitor of experimentation, with simple in construction, real-time is good, stability compared with traditional experiment device
It is high, the advantages of automatization level is strong.
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is described in detail.
Brief description of the drawings
Fig. 1 is the full-automatic temperature rise test low-voltage, high-current generating means structural representation of the utility model；
Fig. 2 is current transformer and power supply wiring figure in the utility model
In figure：1st, direct current generator；2nd, automatic coupling voltage regulator；3rd, controlling switch；4th, strong current generator；5th, driver；6th, show
Display screen；7th, test product； 8、PLC；9th, current transformer；10th, voltage transformer；11st, temperature sensor；12nd, signal processing unit；
13rd, guidance panel；14th, host computer；15th, power supply.
Embodiment
In order to reach above-mentioned utility model purpose, the utility model proposes a kind of full-automatic temperature rise test low-voltage, high-current
Generating means.
Full-automatic temperature rise test low-voltage, high-current generating means structure diagram as shown in Figure 1, mainly including direct current generator
1st, automatic coupling voltage regulator 2, controlling switch 3, strong current generator 4, driver 5, display screen 6, test product 7, PLC8, current transformer 9,
Voltage transformer 10, temperature sensor 11, signal processing unit 12, guidance panel 13, host computer 14, wherein direct current generator 1
Rotating shaft is connected with the control end of automatic coupling voltage regulator 2, and the control end of direct current generator 1 is connected with the output end of driver 5, driving
The signal input part of device 5 is connected with PLC8 signal output part, and the output end of automatic coupling voltage regulator 2 passes through controlling switch 3 and big
The input of current feedback circuit 4 is connected, and the output end of strong current generator 4 is connected with the current input terminal of test product 7, temperature
The measurement end of degree sensor 11 is connected with the temperature measuring point of test product 7, at the signal output part and signal of temperature sensor 11
The input for managing the C branch roads of unit 12 is connected, and current transformer 9 is connected with the current measurement end of strong current generator 4, electricity
The measurement end of pressure transformer 10 is connected with the voltage measurement end of strong current generator 4；The A branch roads of signal processing unit 12 and electricity
The signal output part of current transformer 9 is connected, the B branch roads of signal processing unit 12 and the signal output part phase of voltage transformer 10
Connection, the output end of signal processing unit 12 is connected with PLC8 signal input part.
The wiring diagram of current transformer 9 and power supply 15, as shown in Fig. 2 the wire of output terminal of strong current generator 4 is by electricity
The measurement end of current transformer, punching is passed through, and the power positive end of current transformer 9 is connected with the positive voltage output end of power supply 15,
The power supply negative terminal of current transformer 9 is connected with the negative voltage output end of power supply 15, the ground terminal and power supply of current transformer 9
15 ground terminal is connected, the signal output terminal of current transformer 9, ground terminal as current signal output with signal
The A branch roads of reason unit 12 are connected.
The full-automatic temperature rise test low-voltage, high-current generating means of the utility model is in practical operation, including following operation step
Suddenly：
(1) system electrification, self-inspection；
(2) guidance panel sets test current according to test product current value, and current value is sent into PLC；
(3) PLC judges the combination of strong current generator, sends control instruction to controlling switch, completes high current hair
The first successive step of raw device；
(4) PLC controlling switches are closed；There is electric current to flow through in test product, current transformer collection strong current generator output electricity
Flow valuve, is sent to PLC after signal processing unit；The strong current generator output current value includes：Test product current value and examination
Electrical verification flow valuve.
(5) PLC calculates test loop current value, and in setting current value to be compared, sends drive signal to driver
Direct current generator is controlled to drive the control end operating of automatic coupling voltage regulator, Adjustment Tests current value, untill test current is reached；
(6) PLC gathers test current value in real time, and drive signal control and his like motor action is sent when electric current declines, is protected
Demonstrate,prove whole process of the test electric current value stabilization；
(7) display screen real-time display system electric current, voltage and temperature information in whole temperature rise experimentation, while on
Position machine is monitored to whole process of the test in real time, facilitates testing crew to understand testing ground situation.
(8) temperature sensor gathers the temperature signal of test product measuring point in real time, is sent to after signal processing unit
PL carries out temperature value calculating, after temperature value stabilization, sends control signal closing control switch, strong current generator branch neck, examination
Test stopping.
Claims (3)
1. full-automatic temperature rise test low-voltage, high-current generating means, including direct current generator, current transformer, voltage transformer and temperature
Spend sensor；It is characterized in that：Direct current generator（1）Rotating shaft and automatic coupling voltage regulator（2）Control end be connected, direct current generator（1）
Control end and driver（5）Output end be connected, driver（5）Signal input part be connected with PLC8 signal output part
Connect, automatic coupling voltage regulator（2）Output end pass through controlling switch（3）With strong current generator（4）Input be connected, high current
Generator（4）Output end and test product（7）Current input terminal be connected, temperature sensor（11）Measurement end and test product（7）
Temperature measuring point be connected, temperature sensor（11）Signal output part and signal processing unit（12）C branch roads input
End is connected, current transformer（9）With strong current generator（4）Current measurement end be connected, voltage transformer（10）Survey
Measure end and strong current generator（4）Voltage measurement end be connected；Signal processing unit（12）A branch roads and current transformer
（9）Signal output part be connected, signal processing unit（12）B branch roads and voltage transformer（10）Signal output part be connected
Connect, signal processing unit（12）Output end and PLC（8）Signal input part be connected.
2. full-automatic temperature rise test low-voltage, high-current generating means according to claim 1, it is characterized in that：The electric current is mutual
Sensor（9）With power supply（15）It is connected, wherein strong current generator（4）Wire of output terminal punching pass through current transformer survey
Measure end, current transformer（9）Power positive end and power supply（15）Positive voltage output end be connected, current transformer（9）Electricity
Source negative terminal and power supply（15）Negative voltage output end be connected, current transformer（9）Ground terminal and power supply（15）Ground connection
Terminal is connected, current transformer（9）Signal output terminal, ground terminal be used as current signal output and signal processing unit
（12）A branch roads be connected.
3. full-automatic temperature rise test low-voltage, high-current generating means according to claim 1, it is characterized in that：The high current
The current value of generator output includes：Test product current value and test current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258952.4U CN206470305U (en) | 2016-11-23 | 2016-11-23 | Full-automatic temperature rise test low-voltage, high-current generating means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258952.4U CN206470305U (en) | 2016-11-23 | 2016-11-23 | Full-automatic temperature rise test low-voltage, high-current generating means |
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| CN206470305U true CN206470305U (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621258952.4U Active CN206470305U (en) | 2016-11-23 | 2016-11-23 | Full-automatic temperature rise test low-voltage, high-current generating means |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443096A (en) * | 2016-11-23 | 2017-02-22 | 国网辽宁省电力有限公司电力科学研究院 | Full automatic temperature rise test low-voltage big-current generator and control method thereof |
| CN107589282A (en) * | 2017-10-17 | 2018-01-16 | 云南电网有限责任公司电力科学研究院 | System occurs for a kind of high current |
| CN112650343A (en) * | 2020-12-10 | 2021-04-13 | 国网辽宁省电力有限公司抚顺供电公司 | Intelligent changeable load generator |
| CN113917275A (en) * | 2020-07-09 | 2022-01-11 | 广州华南星光电力科技有限责任公司 | Integrated small-size conductor current-carrying temperature rise test device |
-
2016
- 2016-11-23 CN CN201621258952.4U patent/CN206470305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443096A (en) * | 2016-11-23 | 2017-02-22 | 国网辽宁省电力有限公司电力科学研究院 | Full automatic temperature rise test low-voltage big-current generator and control method thereof |
| CN107589282A (en) * | 2017-10-17 | 2018-01-16 | 云南电网有限责任公司电力科学研究院 | System occurs for a kind of high current |
| CN113917275A (en) * | 2020-07-09 | 2022-01-11 | 广州华南星光电力科技有限责任公司 | Integrated small-size conductor current-carrying temperature rise test device |
| CN112650343A (en) * | 2020-12-10 | 2021-04-13 | 国网辽宁省电力有限公司抚顺供电公司 | Intelligent changeable load generator |
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