CN108508332A - Insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment - Google Patents
Insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment Download PDFInfo
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- CN108508332A CN108508332A CN201810228978.1A CN201810228978A CN108508332A CN 108508332 A CN108508332 A CN 108508332A CN 201810228978 A CN201810228978 A CN 201810228978A CN 108508332 A CN108508332 A CN 108508332A
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- insulation
- module
- high pressure
- electrical aging
- transparent cabinet
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses insulating materials Inverter fed motor life-span Multi-path synchronous test devices under a kind of thermal-electrical aging environment comprising thermal-electrical aging test module, short circuit protection module, high pressure generation module and control module；High pressure generation module is for generating high pressure sinusoidal signal；Short circuit protection module is used to high pressure sinusoidal signal being divided into multichannel Hi-pot test signal, and carries out short-circuit detecting to each circuit；Thermal-electrical aging test module includes insulation transparent cabinet and sample frame, insulation transparent cabinet is closed body structure, sample frame includes insulating barrier, electrode of metal, lower metal electrode, conductive metal bar and the closed casing of insulation, multichannel Hi-pot test signal is respectively applied on a insulation sample, and insulation sample is placed between electrode of metal and lower metal electrode；Control module cuts off current line and stops timing for carrying out timing, and when short circuit occurs for current line.The present invention can carry out Multi-path synchronous test, and not influence the test of other circuits after single channel breakdown.
Description
Technical field
The present invention relates to insulating materials Inverter fed motor detection technique field, insulating materials under especially a kind of thermal-electrical aging environment
Inverter fed motor life-span Multi-path synchronous test device.
Background technology
Since in control and energy saving etc. outstanding advantage, variable-frequency motor is widely used to wind-power electricity generation, ships drives
The fields such as dynamic, high-speed railway.Modern industry is higher using being proposed to the miniaturization of variable-frequency motor, reliability, power density
It is required that International Electrotechnical Commissio has issued technical specification thus, point out, motor is selecting insulating materials, design insulation system
When system and Motor Production Test detect, it is necessary to accordingly be tested in the case where repeating square wave and sinusoidal voltage, to detect its insulation performance；Together
When, variable-frequency motor must carry out type approval test and receive to test before operation, and the water of motor insulation tolerance electric stress is judged with this
It is flat.
Corona-resistant insulation material is widely used in variable-frequency motor due to its superior performance.The turn-to-turn insulation of motor mainly by
Insulating film material (such as Kapton) is constituted, and the quality level height of high-voltage AC motor turn-to-turn insulation directly affects
Whether to design of electrical motor horizontal advanced, it is related to the qualification rate of the manufacturing process and coil finished product in coil process, because
This, turn-to-turn insulation quality plays the role of the processing of motor with operation vital.Motor is in the process of running, it will generates
Therefore a large amount of heat carries out Inverter fed motor life-span electricity, thermal aging test seems extremely important to motor insulation film.
The current test that there is no for effectively assessing insulation film Inverter fed motor life-span performance and capableing of multichannel automatic operating
Device.
Invention content
The goal of the invention of the present invention is：In view of the above problems, insulation material under a kind of thermal-electrical aging environment is provided
Expect Inverter fed motor life-span Multi-path synchronous test device, Multi-path synchronous test can be carried out, and other circuits are not influenced after single channel breakdown
Test.
In order to solve the above technical problems, one aspect of the present invention is：It provides under a kind of thermal-electrical aging environment
Insulating materials Inverter fed motor life-span Multi-path synchronous test device, including thermal-electrical aging test module, short circuit protection module, high pressure generate
Module and control module；The high pressure generation module is used to generate high pressure sinusoidal signal according to the voltage parameter of setting；It is described short
Road protection module is used to the high pressure sinusoidal signal being divided into multichannel Hi-pot test signal, and carries out short-circuit inspection to each circuit
It surveys；The thermal-electrical aging test module includes insulation transparent cabinet and the sample frame in the insulation transparent cabinet, described
Insulation transparent cabinet is closed body structure, and the sample frame includes insulating barrier, electrode of metal, lower metal electrode, leads
Electric metal bar and the closed casing that insulate, the insulating barrier are vacantly arranged in the insulation transparent cabinet, the insulating barrier
Multiple lower metal electrodes are equipped with, more conductive metal bars, each conduction are equipped at the top of the insulation transparent cabinet
The lower end of metallic rod connects the electrode of metal, and multiple electrode of metal are opposite with multiple lower metal electrodes respectively
Setting, each lower metal electrode is grounded, and the upper end of the conductive metal bar is fixed on described by the closed casing that insulate
On insulation transparent cabinet, wherein Hi-pot test signal described in multichannel is respectively applied on a insulation sample, the insulation sample
It is placed between the electrode of metal and lower metal electrode；The control module be used for start test when to each circuit into
Row timing, and when the short circuit protection module detects that short circuit occurs for current line, cut off current line and to current line
Stop timing.
Preferably, the short circuit protection module includes multiple high-voltage relays and multiple Hall sensors, multiple height
Potential relay is electrically connected with the output end of the high pressure generation module, and multiple high-voltage relays pass through multiple institutes respectively
Hall sensor is stated to be electrically connected with the more conductive metal bars；The Hall sensor is for detecting whether circuit generates instantaneously
High current, and when detecting generation transient high-current, short-circuit signal is sent to the control module；The control module is used for
The high-voltage relay on the current line that short circuit occurs, which is controlled, according to the short-circuit signal cuts off current line.
Preferably, the high pressure generation module includes waveform generator and power amplifier, the sinusoidal waveform hair
Raw device is used to generate low pressure sinusoidal signal according to the voltage parameter, and the power amplifier is used for the low pressure sinusoidal signal
It is enlarged into high pressure sinusoidal signal.
Preferably, the high pressure generation module further includes delay protection unit, and the delay protection unit is connected to described
Between power amplifier and the short circuit protection module；The control module is additionally operable to postpone pre- timing according to the short-circuit signal
Between, and when still receiving after delay scheduled time the short-circuit signal, protection signal is sent to the delay protection unit；
The delay protection unit is used to cut off the output of the power amplifier according to the protection signal.
Preferably, display screen is additionally provided on the insulation transparent cabinet, the control module is additionally operable to timing result reality
When display on the display screen.
Preferably, it is arranged with grading shield on each closed casing of insulation.
Preferably, the insulating barrier is vacantly arranged by support element, the support element by be mutually connected vertically first
Support plate and the second support plate are constituted, and first support plate is fixed on the insulation transparent cabinet, and the insulating barrier is put
It sets in second support plate.
Preferably, the electrode of metal and lower metal electrode are cylinder.
Preferably, it is additionally provided with heater in the insulation transparent cabinet, is additionally provided with outside the insulation transparent cabinet for setting
The temperature setting button of the heating temperature of the fixed heater.
Preferably, be additionally provided on the insulation transparent cabinet for control each line start or stop test start and stop by
Button.
In conclusion by adopting the above-described technical solution, the present invention test device may be implemented it is efficient, accurately it is more
Road synchro measure, test result is clearly easy to maintain, easy to operate, has and is quick on the draw, is light-weight, occupying little space, arranging spirit
Living, one man operation such as facilitates at the remarkable advantages.
Description of the drawings
Fig. 1 be the embodiment of the present invention thermal-electrical aging environment under insulating materials Inverter fed motor life-span Multi-path synchronous test device
Structural schematic diagram.
Fig. 2 is the structural schematic diagram of thermal-electrical aging test module shown in FIG. 1.
Fig. 3 is the structural schematic diagram of short circuit protection module shown in FIG. 1.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract), unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
As shown in Figure 1 to Figure 2, in embodiments of the present invention, insulating materials Inverter fed motor life-span multichannel under thermal-electrical aging environment
Synchronous testing device includes high pressure generation module 1, short circuit protection module 2, thermal-electrical aging test module 3 and control module 4.
High pressure generation module 1 is used to generate high pressure sinusoidal signal according to the voltage parameter of setting.
Short circuit protection module 2 is used to high pressure sinusoidal signal being divided into multichannel Hi-pot test signal, and is carried out to each circuit
Short-circuit detecting.
Thermal-electrical aging test module 3 includes insulation transparent cabinet 31 and the sample frame in insulation transparent cabinet 31, absolutely
The transparent cabinet 31 of edge is closed body structure, and sample frame includes insulating barrier 321, electrode of metal 322, lower metal electrode
323, conductive metal bar 324 and the closed casing 325 of insulation, insulating barrier 321 are vacantly arranged in insulation transparent cabinet 31, insulation
Partition board 321 is equipped with multiple lower metal electrodes 323, and the top of insulation transparent cabinet 31 is equipped with more conductive metal bars 324, often
The lower end of one conductive metal bar 324 connects electrode of metal 322, multiple electrode of metal 322 respectively with multiple lower metal electrodes
323 are oppositely arranged, and each lower metal electrode 323 is grounded, and the upper end of conductive metal bar 324 is solid by the closed casing 325 that insulate
It is scheduled on insulation transparent cabinet 31, wherein multichannel Hi-pot test signal is respectively applied on a insulation sample, and insulation sample is put
It sets between electrode of metal 322 and lower metal electrode 323.It can be arranged grading shield 326 on each closed casing 325 that insulate,
Grading shield 326 can be to avoid generating voltage glitch in circuit.Electrode of metal 322 and lower metal electrode 323 can be set as cylinder
Shape.
Control module 4 is used to carry out timing to each circuit when starting test, and detects and work as in short circuit protection module 2
When short circuit occurs for preceding circuit, cuts off current line and timing is stopped to current line.Control module 4 can be separately provided, and also may be used
To become one with short circuit protection module 2.
In the present embodiment, insulating barrier 321 is vacantly arranged by support element, support element by be mutually connected vertically first
Support plate 301 and the second support plate 302 are constituted, and the first support plate 301 is fixed on insulation transparent cabinet 31, insulating barrier 321
It is placed in the second support plate 302.
In Fig. 1, Hi-pot test signal has 5 tunnels, correspondingly, can be with 5 groups of insulation examinations of synchronism detection in insulation transparent cabinet 31
Sample.After the sample that insulate is applied in Hi-pot test signal, control module 4 starts timing, with the increase of pressing time, insulation examination
Sample can be breakdown, and after causing the line short where it, short circuit protection module 2 to detect short circuit, the cut-out of control module 4 is worked as
Preceding circuit simultaneously stops timing, and timing result can be used for the analysis of insulation sample Inverter fed motor life-span.
In the present embodiment, as shown in figs. 1 and 3, short circuit protection module 2 includes multiple high-voltage relays 21 and multiple Halls
Sensor 22, multiple high-voltage relays 21 are electrically connected with the output end of high pressure generation module 1, and multiple high-voltage relays 21 divide
It is not electrically connected with more conductive metal bars 324 by multiple Hall sensors 22；Whether Hall sensor 22 is for detecting circuit
Transient high-current is generated, and when detecting generation transient high-current, short-circuit signal is sent to control module 4；Control module 4 is used
Current line is cut off in controlling the high-voltage relay 21 on the current line that short circuit occurs according to short-circuit signal.Wherein, work as circuit
When middle generation transient high-current, show that short circuit occurs for circuit.
High pressure generation module 1 includes waveform generator 11 and power amplifier 12, the waveform generator 11
For generating low pressure sinusoidal signal according to voltage parameter, power amplifier 12 is used to low pressure sinusoidal signal being enlarged into high pressure sine
Signal.Further, high pressure generation module 1 further includes delay protection unit 13, and delay protection unit 13 is connected to power amplification
Between device 12 and short circuit protection module 2；Control module 4 is additionally operable to according to short-circuit signal delay scheduled time, and predetermined in delay
When still receiving short-circuit signal after the time, protection signal is sent to delay protection unit 13.Delay protection unit 13 is used for root
According to the output of protection signal rupturing duty amplifier 12.Wherein, Hall sensor 22 can be in line short uninterruptedly to control
Module 4 sends short-circuit signal, is no longer powered until the circuit is cut off, if after delay scheduled time, control module 4 still connects
Short-circuit signal is received, shows that short circuit protection module 2 fails, therefore control delay protection unit 13 cuts off work(to control module 4 in time
The output of rate amplifier 12, to avoid danger.
In order to facilitate the observation of test result, display screen 311 is additionally provided on insulation transparent cabinet 31, control module 4 is also used
In by timing result real-time display on display screen 311.Heater (not shown) can also be set in insulation transparent cabinet 31, absolutely
It may be provided for the temperature setting button of the heating temperature of setting heater outside the transparent cabinet of edge 31.In this way, insulation transparent
Cabinet 31 can simulate the gaseous environment of high temperature, certainly, insulation transparent cabinet 31 due to be it is closed, can also further
The gaseous environments such as simulated high-pressure, vacuum.
In order to facilitate test, in the present embodiment, it is additionally provided on insulation transparent cabinet 31 for controlling each line start
Or stop the start-stop button (not shown) of test.
In order to realize remote control, the test device of the embodiment of the present invention can coordinate host computer to be tested, by upper
The generation of position machine remote control low pressure sinusoidal signal and the test run situation for remotely showing each circuit.
By the above-mentioned means, insulating materials Inverter fed motor life-span Multi-path synchronous is surveyed under the thermal-electrical aging environment of the embodiment of the present invention
Trial assembly, which is set, to be tested by generating on the insulation sample that is applied on multiple circuits of multichannel Hi-pot test signal, test process by
Control module is controlled, and when short circuit occurs for a certain circuit, control module can cut off the circuit, but will not be to other circuits
It has an impact, thus allows for Multi-path synchronous test, and do not influence the test of other circuits after single channel breakdown, there is reaction spirit
It is quick, light-weight, occupy little space, the remarkable advantages such as flexible arrangement, one man operation facilitate.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. insulating materials Inverter fed motor life-span Multi-path synchronous test device under a kind of thermal-electrical aging environment, which is characterized in that including electricity
Thermal ageing test module, short circuit protection module, high pressure generation module and control module；
The high pressure generation module is used to generate high pressure sinusoidal signal according to the voltage parameter of setting；
The short circuit protection module is used to the high pressure sinusoidal signal being divided into multichannel Hi-pot test signal, and to each circuit into
Row short-circuit detecting；
The thermal-electrical aging test module includes insulation transparent cabinet and the sample frame in the insulation transparent cabinet, described
Insulation transparent cabinet is closed body structure, and the sample frame includes insulating barrier, electrode of metal, lower metal electrode, leads
Electric metal bar and the closed casing that insulate, the insulating barrier are vacantly arranged in the insulation transparent cabinet, the insulating barrier
Multiple lower metal electrodes are equipped with, more conductive metal bars, each conduction are equipped at the top of the insulation transparent cabinet
The lower end of metallic rod connects the electrode of metal, and multiple electrode of metal are opposite with multiple lower metal electrodes respectively
Setting, each lower metal electrode is grounded, and the upper end of the conductive metal bar is fixed on described by the closed casing that insulate
On insulation transparent cabinet, wherein Hi-pot test signal described in multichannel is respectively applied on a insulation sample, the insulation sample
It is placed between the electrode of metal and lower metal electrode；
The control module is used to carry out timing to each circuit when starting test, and is detected in the short circuit protection module
When short circuit occurs for current line, cuts off current line and timing is stopped to current line.
2. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, the short circuit protection module includes multiple high-voltage relays and multiple Hall sensors, multiple high-voltage relays
Device is electrically connected with the output end of the high pressure generation module, and multiple high-voltage relays pass through multiple Halls respectively
Sensor is electrically connected with the more conductive metal bars；
The Hall sensor is used to detect whether circuit to generate transient high-current, and when detecting generation transient high-current,
Short-circuit signal is sent to the control module；
The control module is used to control the high-voltage relay on the current line that short circuit occurs according to the short-circuit signal and cut off
Current line.
3. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 2,
It is characterized in that, the high pressure generation module includes waveform generator and power amplifier, and the waveform generator is used
In generating low pressure sinusoidal signal according to the voltage parameter, the power amplifier is for the low pressure sinusoidal signal to be enlarged into
High pressure sinusoidal signal.
4. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 3,
It is characterized in that, the high pressure generation module further includes delay protection unit, and the delay protection unit is connected to the power and puts
Greatly between device and the short circuit protection module；
The control module is additionally operable to according to the short-circuit signal delay scheduled time, and is still received after delay scheduled time
When to the short-circuit signal, protection signal is sent to the delay protection unit；
The delay protection unit is used to cut off the output of the power amplifier according to the protection signal.
5. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, display screen is additionally provided on the insulation transparent cabinet, and the control module is additionally operable to timing result real-time display
On the display screen.
6. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, grading shield is arranged on each closed casing of insulation.
7. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, the insulating barrier is vacantly arranged by support element, and the support element is by the first support plate for being mutually connected vertically
It is constituted with the second support plate, first support plate is fixed on the insulation transparent cabinet, and the insulating barrier is placed on institute
It states in the second support plate.
8. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, the electrode of metal and lower metal electrode are cylinder.
9. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, heater is additionally provided in the insulation transparent cabinet, be additionally provided with outside the insulation transparent cabinet described for setting
The temperature setting button of the heating temperature of heater.
10. insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment according to claim 1,
It is characterized in that, is additionally provided on the insulation transparent cabinet for controlling each line start or stopping the start-stop button of test.
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| CN201810228978.1A CN108508332A (en) | 2018-03-20 | 2018-03-20 | Insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment |
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|---|---|---|---|
| CN201810228978.1A CN108508332A (en) | 2018-03-20 | 2018-03-20 | Insulating materials Inverter fed motor life-span Multi-path synchronous test device under thermal-electrical aging environment |
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Cited By (4)
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| CN110829354A (en) * | 2019-10-23 | 2020-02-21 | 南京航空航天大学 | Breakdown automatic protection device for insulation aging test |
| CN112578236A (en) * | 2020-11-27 | 2021-03-30 | 深圳供电局有限公司 | Insulation material electrical aging test system |
| CN113125911A (en) * | 2021-04-26 | 2021-07-16 | 国网黑龙江省电力有限公司电力科学研究院 | Direct current aging test device |
| CN113655347A (en) * | 2021-07-16 | 2021-11-16 | 深圳供电局有限公司 | Corona aging apparatus and method |
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Application publication date: 20180907 |
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