CN202631656U - Automatic regulating temperature-rise testing device for multi-loop current - Google Patents
Automatic regulating temperature-rise testing device for multi-loop current Download PDFInfo
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- CN202631656U CN202631656U CN 201220223862 CN201220223862U CN202631656U CN 202631656 U CN202631656 U CN 202631656U CN 201220223862 CN201220223862 CN 201220223862 CN 201220223862 U CN201220223862 U CN 201220223862U CN 202631656 U CN202631656 U CN 202631656U
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Abstract
The utility model discloses an automatic regulating temperature-rise testing device for multi-loop currents. The device comprises a current source, a control regulator and a wiring component, wherein the current source is used for outputting currents; an output end of the control regulator is connected with an input end of the current source, and the control regulator is used for automatically regulating the current source to output different currents according an input command; and an input end of the wiring component is connected with an output end of the current source, and an output end of the wiring component is connected with a temperature-rise detected product. The automatic regulating temperature-rise testing device solves the problems in the relative art that manual regulation cannot regulate the current to a preset current value quickly during the detection process of temperature-rise tests and that the current is astable due to the impedance changes in the testing process, achieves the effects of automatically controlling the currents in the loops and ensuring the accuracy of the test results, further, reduces the cost of manual control.
Description
Technical field
The present invention relates to power domain, regulate the temperature rise test device automatically in particular to a kind of multiloop electric current.
Background technology
Be under the situation of long-term energising; The temperature of electrical equipment can increase, if the temperature of electrical equipment surpasses certain limit, then the physical strength of this electric material, physical property etc. can change; Cause electric fault easily, can have an accident when serious.Therefore; Temperature measurement is one of important indicator of electrical equipment detection, in low-voltage complete switch equipment and element pattern pilot project, often need carry out the temperature rise experiment to it and detect; To confirm whether conformance with standard requirement of electrical equipment, guarantee the security of electrical equipment.
During existing temperature rise experiment detects; The major loop of low-voltage complete switch equipment temperature rise checkout equipment as shown in Figure 1; Carry out the pressure regulation current stabilization by pressure regulator and current transformer as power output apparatus; The testing staff by the adjustable impedance in each loop of manual adjustments to obtain required electric current in each loop; Yet; Because three-phase current unbalance, manual adjustment are difficult to quick adjustment to the predetermined current value; Further, along with the carrying out of test, test specimen impedance meeting changes along with the change of temperature; Cause that electric current also changes in the loop; Therefore, exceed the deviation of standard code in loop current after, also need testing crew to remove to regulate electric current to meet the requirements prescribed; In addition, because each loop current size influences each other in traditional hookup, the variable resistor that need regulate repeatedly in each loop just can reach the target current size in each loop, and the adjusting difficulty is very big.
To the problems referred to above in the correlation technique, effective solution is not proposed as yet at present.
The utility model content
The utility model provides a kind of multiloop electric current to regulate the temperature rise test device automatically, is difficult to the electric current problem of unstable that quick adjustment causes to predetermined current value and the impedance variations in process of the test to solve temperature rise experiment testing process manual shift in the correlation technique.
According to an aspect of the present invention, provide a kind of multiloop electric current to regulate the temperature rise test device automatically, this device comprises: current source is used for output current; The regulating and controlling device, the output terminal of regulating and controlling device is connected with the input end of current source, is used for regulating the different electric current of current source output automatically according to the instruction of input; Connecting part, the input end of connecting part is connected with the output terminal of current source, and the output terminal of connecting part is used for being connected with the temperature rise test product.
Preferably, current source comprises many group current output devices, wherein, and every group of current output device independence output current.
Preferably, current output device comprises: pressure regulator, and the input end of pressure regulator is connected with the output terminal of regulating and controlling device; Current transformer, the input end of current transformer is connected with the output terminal of pressure regulator.
Preferably, current output device also comprises: current transformer, current transformer and pressure regulator and current transformer are connected in series.
Preferably, the regulating and controlling device comprises: pressure regulator regulating and controlling circuit, be connected with the input end of pressure regulator, and be used to control the voltage of pressure regulator output.
Preferably, the regulating and controlling device comprises: the current acquisition circuit is used to gather the electric current in loop, product to be detected place.
Preferably, connecting part comprises some groups of three-phase current output terminals, is used to export three-phase current, and wherein, each phase current output terminal of three-phase current output terminal is connected with the current output device of one group of independence output current.
Preferably, the regulating and controlling device comprises: communication interface is used for being connected with host computer and carries out communication.
Preferably, the regulating and controlling device also comprises: control display screen is used for showing the parameter information of regulating and controlling device.
Preferably, the regulating and controlling device also comprises: logging modle is used for preserving the parameter information of regulating and controlling device.
Pass through the utility model; In carrying out the temperature rise test testing process; Increase regulating and controlling device, regulate pressure regulator automatically through control device and realize in each loop current stabilization, and then reach and control each current in loop automatically to target current with control function; Solve temperature rise experiment testing process manual shift in the correlation technique and be difficult to the electric current problem of unstable that quick adjustment causes to predetermined current value and the impedance variations in process of the test; Reach the effect of the accuracy of controlling each current in loop and warranty test result automatically, further, reduced manually operated expense.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the circuit theory diagrams according to the temperature rise test detection of correlation technique;
Fig. 2 is a kind of preferred construction synoptic diagram of regulating the temperature rise test device according to the multiloop electric current of the embodiment of the invention automatically;
Fig. 3 is an another kind of preferred construction synoptic diagram of regulating the temperature rise test device according to the multiloop electric current of the embodiment of the invention automatically;
Fig. 4 is a kind of preferred circuit theory diagrams of regulating the temperature rise test device according to the multiloop electric current of the embodiment of the invention automatically.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment 1
Present embodiment provides a kind of multiloop electric current to regulate the temperature rise test device automatically, and is particularly, as shown in Figure 2; This device comprises: current source 202, be used for output current, and preferred; Current source 202 can be become by many groups electric current group, is used for independent output adjustable current, and is preferred; Current source 202 inside have perfect defencive function, are used for the safety of holding circuit; Regulating and controlling device 204; The output terminal of regulating and controlling device 204 is connected with the input end of current source 202, is used for regulating the different electric current of current source 202 outputs automatically according to the instruction of input, and is preferred; Regulating and controlling device 204 is according to the current data in each loop of gathering; After on-test, regulate automatically and stablize each test loop electric current according to the instruction of input, and record on-test and concluding time; Preferably, regulating and controlling device 204 is through many group electric current cabinets in the Control current source 202, to realize the different electric current of current source 202 outputs; Connecting part 206, the input end of connecting part 206 is connected with the output terminal of current source 202, and the output terminal of connecting part 206 is used for being connected with the temperature rise test product; Preferably, connecting part 206 is provided with many group three-phase current output terminals, and is preferred; Each phase current output terminal of three-phase current output terminal is connected with the current output device of one group of independence output current, is used to export three-phase alternating current, but has realized the three-phase current independent regulation; In addition, also make things convenient for the wiring of test product.
Above-mentioned preferred embodiment in; In carrying out the temperature rise test testing process; Increase regulating and controlling device, regulate pressure regulator automatically through control device and realize in each loop current stabilization, and then reach and control each current in loop automatically to target current with control function; Solved that temperature rise experiment testing process manual shift is difficult to the problem of quick adjustment to the predetermined current value in the correlation technique; Reach the effect of controlling each current in loop automatically, further, reduced manually operated expense.
The utility model also provides a kind of preferred scheme to above-mentioned current source, and is particularly, as shown in Figure 3; Current source 202 comprises many group current output devices, as, current output devices such as electric current cabinet; Wherein, every group of current output device independence output current, preferred; Current output device comprises: pressure regulator 302, and the input end of pressure regulator is connected with the output terminal of regulating and controlling device; Current transformer 304, the input end of current transformer is connected with the output terminal of pressure regulator.Preferably, current output device also comprises: current transformer, current transformer and pressure regulator and current transformer are connected in series.Above-mentioned preferred embodiment in, realize that through pressure regulator, current transformer summation current transformer current stabilization is to target current in each loop.
Specifically; Fig. 4 shows a kind of preferred circuit theory diagrams that the utility model multiloop electric current is regulated the temperature rise test device automatically; In Fig. 4, can find out; When different test products had different load current values, each loop all had an independent regulating current device and is used to regulate each current in loop.In the process of carrying out the temperature rise test detection; The regulating and controlling device is regulated pressure regulator automatically; And pass through components and parts current stabilizations such as current transformer, current transformer to target current; Compared to prior art, need not tester's manual adjustments adjustable resistance and realize above-mentioned purpose, reduced manually-operated expense.
The utility model also provides a kind of preferred scheme to above-mentioned regulating and controlling device 204, and specifically, regulating and controlling device 204 comprises: pressure regulator regulating and controlling circuit, be connected with the input end of pressure regulator, and be used to control the voltage of pressure regulator output.Preferably, according to the current value of input, pressure regulator regulating and controlling circuit is regulated pressure regulator automatically, to arrive target current, reduces the expense of manual shift.
In addition, regulating and controlling device 204 also comprises: the current acquisition circuit is used to gather the electric current in loop, product to be detected place.Preferably, through evidence, each loop current degree of regulation is not less than 2%.Specifically, in the process of carrying out the temperature rise test detection, the current acquisition circuit is gathered each current in loop value in real time, so that the user can clearly know each current in loop size.Preferably, the data automatic recording that collects gets off, and need not the manual record of tester, further reduces manually-operated expense.
Preferably, the regulating and controlling device comprises: communication interface is used for being connected with host computer and carries out communication.Preferably, can control the regulating and controlling device, and then realize the electric current output in Control current source through computing machine.
In addition, preferred, said apparatus also comprises logging modle, is used for preserving the parameter information of regulating and controlling device, and is preferred, and above-mentioned parameter information comprises test period parameter and the pick of process of the test number.Preferably, time parameter includes but not limited to time on-test, off-test time; The process of the test data include but not limited to: each loop current data.
From above description, can find out, in the utility model; In carrying out the temperature rise test testing process; Increase regulating and controlling device, regulate pressure regulator automatically through control device and realize in each loop current stabilization, and then reach and control each current in loop automatically to target current with control function; Solve temperature rise experiment testing process manual shift in the correlation technique and be difficult to the electric current problem of unstable that quick adjustment causes to predetermined current value and the impedance variations in process of the test; Reach the effect of the accuracy of controlling each current in loop and warranty test result automatically, further, reduced manually operated expense.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multiloop electric current is regulated the temperature rise test device automatically, it is characterized in that, comprising:
Current source is used for output current;
The regulating and controlling device, the output terminal of said regulating and controlling device is connected with the input end of said current source, is used for regulating the different electric current of said current source output automatically according to the instruction of input;
Connecting part, the input end of said connecting part is connected with the output terminal of said current source, and the output terminal of said connecting part is used for being connected with the temperature rise test product.
2. device according to claim 1 is characterized in that, said current source comprises many group current output devices, wherein, and every group of current output device independence output current.
3. device according to claim 2 is characterized in that, said current output device comprises:
Pressure regulator, the input end of said pressure regulator is connected with the output terminal of said regulating and controlling device;
Current transformer, the input end of said current transformer is connected with the output terminal of said pressure regulator.
4. device according to claim 3 is characterized in that, said current output device also comprises:
Current transformer, said current transformer and said pressure regulator and said current transformer are connected in series.
5. device according to claim 1 is characterized in that, said regulating and controlling device comprises:
Pressure regulator regulating and controlling circuit is connected with the input end of said pressure regulator, is used to control the voltage of said pressure regulator output.
6. device according to claim 1 is characterized in that, said regulating and controlling device comprises:
The current acquisition circuit is used to gather the electric current in loop, said product to be detected place.
7. device according to claim 2 is characterized in that, said connecting part comprises some groups of three-phase current output terminals, and wherein, each phase current output terminal of said three-phase current output terminal is connected with the current output device of one group of independence output current.
8. device according to claim 1 is characterized in that, said regulating and controlling device comprises:
Communication interface is used for being connected with host computer and carries out communication.
9. device according to claim 1 is characterized in that, said regulating and controlling device also comprises:
Control display screen is used for showing the parameter information of said regulating and controlling device.
10. device according to claim 1 is characterized in that, said regulating and controlling device also comprises:
Logging modle is used for preserving the parameter information of said regulating and controlling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223862 CN202631656U (en) | 2012-05-17 | 2012-05-17 | Automatic regulating temperature-rise testing device for multi-loop current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223862 CN202631656U (en) | 2012-05-17 | 2012-05-17 | Automatic regulating temperature-rise testing device for multi-loop current |
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| Publication Number | Publication Date |
|---|---|
| CN202631656U true CN202631656U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220223862 Expired - Fee Related CN202631656U (en) | 2012-05-17 | 2012-05-17 | Automatic regulating temperature-rise testing device for multi-loop current |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062478A (en) * | 2014-06-19 | 2014-09-24 | 苏州上电科电气设备有限公司 | Novel current regulation testing device |
| CN105406725A (en) * | 2015-11-23 | 2016-03-16 | 苏州华电电气股份有限公司 | Current source apparatus for high-voltage switch cabinet temperature rise test |
| CN107505487A (en) * | 2017-08-28 | 2017-12-22 | 浙江方圆电气设备检测有限公司 | A kind of method, system and the low voltage complete set of temperature rise experiment |
| CN111736026A (en) * | 2020-06-29 | 2020-10-02 | 深圳市京泉华科技股份有限公司 | Temperature rise test system and method |
| CN112305361A (en) * | 2020-11-06 | 2021-02-02 | 江苏省电力试验研究院有限公司 | Temperature rise test three-phase unbalanced current compensation system and control method |
-
2012
- 2012-05-17 CN CN 201220223862 patent/CN202631656U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062478A (en) * | 2014-06-19 | 2014-09-24 | 苏州上电科电气设备有限公司 | Novel current regulation testing device |
| CN105406725A (en) * | 2015-11-23 | 2016-03-16 | 苏州华电电气股份有限公司 | Current source apparatus for high-voltage switch cabinet temperature rise test |
| CN107505487A (en) * | 2017-08-28 | 2017-12-22 | 浙江方圆电气设备检测有限公司 | A kind of method, system and the low voltage complete set of temperature rise experiment |
| CN111736026A (en) * | 2020-06-29 | 2020-10-02 | 深圳市京泉华科技股份有限公司 | Temperature rise test system and method |
| CN112305361A (en) * | 2020-11-06 | 2021-02-02 | 江苏省电力试验研究院有限公司 | Temperature rise test three-phase unbalanced current compensation system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410009 No. two, section 300, South Second Ring Road, Changsha, Hunan Patentee after: Hunan Inst Of Electrical Appliance Science Address before: 410009 No. two, section 300, South Second Ring Road, Changsha, Hunan Patentee before: Hunan Electrical Apparatus Testing Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |