CN104375063A - Extreme withstand voltage testing device and method - Google Patents
Extreme withstand voltage testing device and method Download PDFInfo
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- CN104375063A CN104375063A CN201310354225.2A CN201310354225A CN104375063A CN 104375063 A CN104375063 A CN 104375063A CN 201310354225 A CN201310354225 A CN 201310354225A CN 104375063 A CN104375063 A CN 104375063A
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Abstract
The invention discloses an extreme withstand voltage testing device and method. The extreme withstand voltage testing device comprises a direct current surge voltage module, a tested device and a detection module. The direct current surge voltage module is used for outputting direct current surge voltage to be loaded at the two ends of the tested device, and the direct current surge voltage is formed by high voltage and low voltage which alternatively emerge according to a certain time rule. The detection module is used for detecting the voltage at the two ends of the tested device, and therefore the extreme withstand voltage value of the detected device is obtained. The extreme withstand voltage testing device can safely and effectively test the extreme withstand voltage value of the detected device.
Description
Technical field
The present invention relates to application of electronic technology field, particularly relate to a kind of limit pressure resistant testing device and method.
Background technology
In Switching Power Supply product, high-voltage aluminium electrolysis capacitance be one of them Primary Component, to its unit for electrical property parameters require very strict.Substitute in test job in high-voltage aluminium electrolysis capacitance compatibility, have multinomial electrical performance indexes to need test, commonly capacity, withstand voltage, leakage current, temperature etc.; Wherein, the limit is withstand voltage is a value being difficult to contrast.
Traditional way is:
With adjustable high voltage direct current source, first add specified operating voltage to device, then within a certain period of time voltage is risen gradually by a fixed step size, allow it keep certain voltage regular hour, observe device terminal voltage with oscillograph, simultaneously test component skin temperature.Due to tested sample discreteness and derive from different manufacturers, its unit for electrical property parameters differs greatly sometimes, and limiting voltage has difference 100V.In this case, the method for testing of experience often causes low withstand voltage tested device to be blasted, and one is safe not, and two is easily pollute.
Another more widely method be use Hi-pot Tester test, set a leakage current value, then the output voltage of Hi-pot Tester is made constantly to climb, this method is comparatively safe, but Hi-pot Tester can only be tested once at every turn, reaches the leakage current value of setting, Hi-pot Tester is protected with regard to alarm, can not carry out repeated stock to measured capacitance, the leakage current value that another Hi-pot Tester can be arranged has certain scope, so cannot assess tenability limit and the tolerance time of electric capacity; And test needs extra Hi-pot Tester, adds testing cost.
Summary of the invention
The main technical problem to be solved in the present invention is, provides a kind of limit pressure resistant testing device and method, safely, effectively can test out the limit withstand voltage of measured device.
For solving the problems of the technologies described above, the invention provides a kind of limit pressure resistant testing device, comprising: DC impulse voltage module, tested device and detection module;
Described DC impulse voltage module is carried in described tested device two ends for exporting a DC impulse voltage, and described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Described detection module for detecting the voltage at described tested device two ends, thus obtains the limit withstand voltage of described detected device.
Further, described DC impulse voltage module comprises: high-low voltage output module and control module;
Described high-low voltage output module is for exporting a High Level DC Voltage and a low dc voltage;
Described control module is used for according to the output voltage of a DC voltage in the high and low DC voltage of Preset Time rule alternate selection as described DC impulse voltage module.
Further, described high-low voltage output module is the one in following three kinds of structures:
The first, described high-low voltage output module comprises: High Level DC Voltage source module and low dc voltage source module;
Described High Level DC Voltage source module is used for providing a High Level DC Voltage;
Described low dc voltage source module is used for providing a low dc voltage;
The second, described high-low voltage output module comprises: rectification module and voltage transformation module;
Described rectification module is used for carrying out rectification to the alternating voltage of input, is converted into DC voltage;
Described voltage transformation module is used for carrying out conversion output High Level DC Voltage and a low dc voltage to the amplitude of described DC voltage;
The third, described high-low voltage output module comprises: voltage transformation module and rectification module;
Described high voltage conversion module is used for carrying out voltage transformation process to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Described rectification module is used for carrying out rectification to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
Further, described DC impulse voltage module comprises: high-low voltage output module, control module and rectification module;
Described high-low voltage output module is for exporting a high alternating voltage and a low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Described rectification module is used for carrying out rectification to the alternating voltage that described control module exports, and is converted into DC voltage.
Further, described high-low voltage output module comprises: high voltage conversion module and low-voltage conversion module;
Described high voltage conversion module is used for the alternating voltage of input to be transformed to high alternating voltage;
Described low-voltage conversion module is used for the alternating voltage of described input to be transformed to low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
Further, described high-low voltage output module also comprises: voltage magnitude adjusting module;
Described voltage magnitude adjusting module is used for adjusting the amplitude of the high and low DC voltage that described rectification module exports.
Further, described limit pressure resistant testing device also comprises: discharge loop module and voltage attenuation module;
Described discharge loop module between described DC impulse voltage module and described measured device, for when testing is complete, the electric energy of releasing on described measured device;
Described voltage attenuation module between described measured device and described detection module, for reducing the input voltage of described detection module.
Also for ease of and solve above-mentioned technical matters, present invention also offers a kind of limit withstand voltage test method, comprise the following steps:
Export a DC impulse voltage and be carried in described tested device two ends, described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Detect the voltage at described tested device two ends, thus obtain the limit withstand voltage of described detected device.
Further, described output high-low voltage is carried in described tested device two ends step according to the DC impulse voltage that certain hour rule alternately occurs and comprises:
Export a High Level DC Voltage and a low dc voltage;
Described tested device two ends are carried in as described DC impulse voltage according to a DC voltage in the high and low DC voltage of Preset Time rule alternate selection.
Further, the one below the step of described output High Level DC Voltage and a low dc voltage in three kinds of processes comprises:
The first, the step of described output High Level DC Voltage and a low dc voltage comprises:
Export a High Level DC Voltage by High Level DC Voltage source module, export a low dc voltage by low dc voltage source module;
The second, the step of described output High Level DC Voltage and a low dc voltage comprises:
Rectification is carried out to the alternating voltage of input, is converted into DC voltage;
Conversion output High Level DC Voltage and a low dc voltage are carried out to the amplitude of described DC voltage;
The third, the step of described output High Level DC Voltage and a low dc voltage comprises:
Voltage transformation process is carried out to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Rectification is carried out to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
Further, described output high-low voltage is carried in described tested device two ends step according to the DC impulse voltage that certain hour rule alternately occurs and comprises:
Export a high alternating voltage and a low alternating voltage;
According to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Rectification is carried out to the alternating voltage exported, is converted into the two ends that DC voltage is carried in described tested device.
Further, the step of described output high alternating voltage and a low alternating voltage comprises:
Input ac voltage, is transformed to high alternating voltage and the alternating voltage of described input is transformed to low alternating voltage by the alternating voltage of input;
Describedly to comprise according to the step of an alternating voltage in Preset Time rule alternate selection high and low alternating voltage as output voltage:
According to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
The invention has the beneficial effects as follows:
The invention provides the limit withstand voltage that a kind of limit pressure resistant testing device and method can test out measured device safely, effectively.Limit pressure resistant testing device of the present invention comprises: DC impulse voltage module, tested device and detection module; Described DC impulse voltage module is carried in described tested device two ends for exporting a DC impulse voltage, and described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule; Described detection module for detecting the voltage at described tested device two ends, thus obtains the limit withstand voltage of described detected device; The DC impulse voltage that the present invention alternately occurs according to certain hour rule by loading a high-low voltage at measured device two ends, the energy of measured device can be made slowly to increase progressively in time, improve the safety of test process, and the change in voltage at direct-detection tested device two ends can be easy to the limit withstand voltage drawing tested device by detection module; Compared with traditional proving installation, proving installation of the present invention is easy to realization, testing cost is low, and adopt less components and parts to complete, reliability is high.
Accompanying drawing explanation
The structural representation of a kind of limit pressure resistant testing device that Fig. 1 provides for the embodiment of the present invention one;
The schematic diagram of a kind of DC impulse voltage that Fig. 2 provides for the embodiment of the present invention one;
The structural representation of the another kind of limit pressure resistant testing device that Fig. 3 provides for the embodiment of the present invention one;
The structural representation of the another kind of limit pressure resistant testing device that Fig. 4 provides for the embodiment of the present invention one;
The structural representation of a kind of high-low voltage output module that Fig. 5 provides for the embodiment of the present invention two;
The structural representation of the another kind of high-low voltage output module that Fig. 6 provides for the embodiment of the present invention two;
The structural representation of the another kind of high-low voltage output module that Fig. 7 provides for the embodiment of the present invention two;
The structural representation of a kind of limit pressure resistant testing device that Fig. 8 provides for the embodiment of the present invention three;
The structural representation of the another kind of limit pressure resistant testing device that Fig. 9 provides for the embodiment of the present invention three;
The structural representation of the another kind of limit pressure resistant testing device that Figure 10 provides for the embodiment of the present invention three;
A kind of structural representation testing alminium electrolytic condenser limit voltage holding circuit that Figure 11 provides for the embodiment of the present invention four;
Figure 12 shows that the schematic flow sheet of a kind of limit withstand voltage test method that the embodiment of the present invention five provides.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Embodiment one:
As shown in Figure 1, the limit pressure resistant testing device of the present embodiment, comprising: DC impulse voltage module, tested device and detection module;
Described DC impulse voltage module is carried in described tested device two ends for exporting a DC impulse voltage, and described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Described detection module for detecting the voltage at described tested device two ends, thus obtains the limit withstand voltage of described detected device.
The DC voltage that in the present embodiment, high-low voltage alternately occurs according to certain hour rule refers to: the DC voltage of the high pressure of certain time, the low pressure of certain time.Such as shown in Figure 2,7 seconds amplitudes that can be a low pressure duration be are 450VDC, the high pressure duration be 0.5 second amplitude is the DC impulse voltage of 620VDC.
The limit pressure resistant testing device of the present embodiment replaces according to certain hour rule the DC impulse voltage occurred by loading a high-low voltage at measured device two ends, the energy of measured device can be made slowly to increase progressively in time, improve the safety of test process, and the change in voltage at direct-detection tested device two ends can be easy to the limit withstand voltage drawing tested device by detection module; Compared with traditional proving installation, proving installation of the present invention is easy to realization, testing cost is low, and adopt less components and parts to complete, reliability is high.
In the present embodiment, the structure of DC impulse voltage can comprise following two kinds of situations:
The first situation, as shown in Figure 3, described DC impulse voltage module comprises: high-low voltage output module and control module;
Described high-low voltage output module is for exporting a High Level DC Voltage and a low dc voltage;
Described control module is used for according to the output voltage of a DC voltage in the high and low DC voltage of Preset Time rule alternate selection as described DC impulse voltage module.
The second situation, as shown in Figure 4, described DC impulse voltage module comprises: high-low voltage output module, control module and rectification module;
Described high-low voltage output module is for exporting a high alternating voltage and a low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Described rectification module is used for carrying out rectification to the alternating voltage that described control module exports, and is converted into DC voltage.
Above-mentioned two kinds of structure situation are two kinds of processes producing DC impulse voltage in fact.
The present embodiment limit pressure resistant testing device goes for the voltage-withstand test to electric capacity, and the tested device of such as the present embodiment can be alminium electrolytic condenser etc.
Implement two:
Present embodiments provide limit pressure resistant testing device as shown in Figure 3, wherein the one that can comprise in following three kinds of structures of high-low pressure output module:
The first, as shown in Figure 5, described high-low voltage output module comprises: High Level DC Voltage source module and low dc voltage source module;
Described High Level DC Voltage source module is used for providing a High Level DC Voltage;
Described low dc voltage source module is used for providing a low dc voltage;
In this situation, producing the process of DC impulse voltage can be: high and low direct voltage source exports high and low DC voltage → carry out outputs control to high and low DC voltage.
The second, as shown in Figure 6, described high-low voltage output module comprises: rectification module and voltage transformation module;
Described rectification module is used for carrying out rectification to the alternating voltage of input, is converted into DC voltage;
Described voltage transformation module is used for carrying out conversion output High Level DC Voltage and a low dc voltage to the amplitude of described DC voltage;
In this situation, producing the process of DC impulse voltage can be: input ac voltage → be converted to DC voltage → according to DC voltage generates a High Level DC Voltage and a low dc voltage carries out outputs control to high and low DC voltage.
The third, as shown in Figure 7, described high-low voltage output module comprises: voltage transformation module and rectification module;
Described high voltage conversion module is used for carrying out voltage transformation process to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Described rectification module is used for carrying out rectification to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
In this situation, the process producing DC impulse voltage can be: input ac voltage → high and low alternating voltage → high and low DC voltage → carry out output to high and low DC voltage to control.
The mode of the corresponding three kinds of high and low DC voltage of generation of three kinds of structures of above high-low voltage output module.
The limit pressure resistant testing device of the present embodiment can export a high-low voltage and replace the DC impulse voltage occurred, effectively can test the withstand voltage situation of the limit of tested device such as electric capacity, and realizing than being easier to, adopting the testing cost that less device reduces.
Embodiment three:
As shown in Figure 8, on the proving installation basis shown in Fig. 4, present embodiments provide a kind of limit pressure resistant testing device, wherein said high-low voltage output module comprises: high voltage conversion module and low-voltage conversion module;
Described high voltage conversion module is used for the alternating voltage of input to be transformed to high alternating voltage;
Described low-voltage conversion module is used for the alternating voltage of described input to be transformed to low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
The present embodiment proving installation produces the process of impacting DC voltage: input ac voltage → high and low alternating voltage → carry out output control → high and low DC voltage to high and low alternating voltage.
Such as when being input as 220Vac, a low pressure time delay can be provided to be 7 seconds amplitudes through said process be 160Vac, the interchange surge voltage of high-voltage time to be 0.5 second amplitude be 220Vac, then rectification is carried out to interchange surge voltage, can export that a low pressure time delay is that 7 seconds amplitudes are about 220VDC, high-voltage time is the DC impulse voltage that 0.5 second amplitude is about 310VDC.
Needed for different tested devices, test voltage is not identical, and in order to adapt to different measured devices, as shown in Figure 9, the limit pressure resistant testing device of the present embodiment can also comprise: voltage magnitude adjusting module; Described voltage magnitude adjusting module is used for adjusting the amplitude of the high and low DC voltage that described rectification module exports.
Be such as 7 seconds amplitudes to above-mentioned low pressure time delay be 220VDC, the DC impulse voltage of high-voltage time to be 0.5 second amplitude be 310VDC carries out voltage magnitude amplification, to be become low pressure time delay be 7 seconds amplitudes is 220VDC, high-voltage time be 0.5 second amplitude is the DC impulse voltage of 400VDC.
As shown in Figure 10, in order to prevent the energy on tested device from producing electric shock when preventing from having tested, and protection detection module, the proving installation of the present embodiment can also comprise: discharge loop module and voltage attenuation module;
Described discharge loop module between described DC impulse voltage module and described measured device, for when testing is complete, the electric energy of releasing on described measured device;
Described voltage attenuation module between described measured device and described detection module, for reducing the input voltage of described detection module.
The proving installation of the present embodiment is applicable to the limit voltage-withstand test of high-voltage aluminium electrolysis capacitance, is also suitable for the limit voltage-withstand test of other electronic devices and components or circuit.
The limit pressure resistant testing device of the present embodiment replaces according to certain hour rule the DC impulse voltage occurred by loading a high-low voltage at measured device two ends, the energy of measured device can be made slowly to increase progressively in time, improve the safety of test process, and the change in voltage at direct-detection tested device two ends can be easy to the limit withstand voltage drawing tested device by detection module; Compared with traditional proving installation, proving installation of the present invention is easy to realization, testing cost is low, and adopt less components and parts to complete, reliability is high
Embodiment four:
The present embodiment is withstand voltage to test the alminium electrolytic condenser limit, proving installation of the present invention is described, as shown in figure 11, for the limit voltage-withstand test circuit that the present embodiment provides, shown in its with above-mentioned Figure 10, proving installation is corresponding, comprising: alminium electrolytic condenser, interchange high-low pressure surge generator, voltage doubling rectifing circuit, discharge loop, oscilloprobe input attenuator and oscillograph;
A: exchange high-low pressure surge generator: part A input is the output of AC voltage regulator, when being input as 220Vac, it provides a low pressure time delay to be 7 seconds amplitudes to part B circuit is 160Vac, the interchange surge voltage of high-voltage time to be 0.5 second amplitude be 220Vac.It should be noted that, although the ratio of high-low pressure is certain, the energy size of impacting can be realized by the adjustment High voltage output time.Exchange high-low pressure surge generator corresponding with high-low pressure output module in Figure 10, its concrete structure can the structure of high-low pressure output module in reference diagram 8.
B: voltage doubling rectifing circuit: circuit B is a voltage doubling rectifing circuit be made up of R1, VD1, VD2, C1, C2, the alternating voltage that part A exports is carried out voltage multiplying rectifier by it, when part A export above-mentioned low pressure 160Vac, high pressure 220Vac interchange surge voltage time, part B export be that a low pressure amplitude is 450VDC, high pressure amplitude is the DC impulse voltage of 620VDC.Voltage doubling rectifing circuit is corresponding with voltage magnitude adjusting module in Figure 10 and rectification module.
C: discharge loop: this part forms an energy leadage circuit by K switch and resistance R2, posistor R3, and when testing is complete, the energy of being released by this loop on sample, avoids electric shock.Discharge loop is corresponding with discharge loop module in Figure 10.
E: oscilloprobe input attenuator: be made up of R4 and R5, reduces sampling voltage, protection oscillograph.It is corresponding with voltage attenuation module in Figure 10.
Present embodiments provide the device that a kind of testing high voltage alminium electrolytic condenser limit is withstand voltage, from test, oscillograph can very clearly be seen, slowly increase progressively to the energy of test sample in time, therefore the leakage current of sample can not increase suddenly.This characteristic determined by circuit, and determinative is the RC time constant in high pressure amplitude, high pressure duration, impacting with high pressure cycle and voltage doubling rectifing circuit.When test electrochemical capacitor, as long as note the High Voltage Impulse Waveform seeing sample two ends, be very easy to the limiting voltage situation just can judging this sample, once fall under discovery voltage waveform distortion, just can think that the test of sample can finish, read the withstand voltage ultimate value of sample by oscillograph simultaneously.Utilize the present invention, the withstand voltage ultimate value of electrochemical capacitor can be determined very easily, and the tolerance number of times of different electrochemical capacitor to same impact energy can be contrasted.
Embodiment five:
As shown in figure 12, present embodiments provide a kind of limit withstand voltage test method, comprise the following steps:
Step 121: export a DC impulse voltage and be carried in described tested device two ends, described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Step 122: the voltage detecting described tested device two ends, thus obtain the limit withstand voltage of described detected device.
Export high-low voltage in the present embodiment step 121 to be carried in described tested device two ends step according to the DC impulse voltage that certain hour rule alternately occurs and can to comprise following two kinds of processes:
The first process:
Export a High Level DC Voltage and a low dc voltage;
Described tested device two ends are carried in as described DC impulse voltage according to a DC voltage in the high and low DC voltage of Preset Time rule alternate selection.
Second process:
Export a high alternating voltage and a low alternating voltage;
According to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Rectification is carried out to the alternating voltage exported, is converted into the two ends that DC voltage is carried in described tested device.
One below the step of an output High Level DC Voltage and a low dc voltage described in the first output DC impulse voltage process above-mentioned in three kinds of processes comprises:
The first, the step of described output High Level DC Voltage and a low dc voltage comprises:
Export a High Level DC Voltage by High Level DC Voltage source module, export a low dc voltage by low dc voltage source module;
The second, the step of described output High Level DC Voltage and a low dc voltage comprises:
Rectification is carried out to the alternating voltage of input, is converted into DC voltage;
Conversion output High Level DC Voltage and a low dc voltage are carried out to the amplitude of described DC voltage;
The third, the step of described output High Level DC Voltage and a low dc voltage comprises:
Voltage transformation process is carried out to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Rectification is carried out to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
Above-mentioned the second exports the step exporting a high alternating voltage and a low alternating voltage described in DC impulse voltage process and comprises:
Input ac voltage, is transformed to high alternating voltage and the alternating voltage of described input is transformed to low alternating voltage by the alternating voltage of input;
Describedly to comprise according to the step of an alternating voltage in Preset Time rule alternate selection high and low alternating voltage as output voltage:
According to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
The method of testing of the present embodiment is applicable to the limit voltage-withstand test of high-voltage aluminium electrolysis capacitance, is also suitable for the limit voltage-withstand test of other electronic devices and components or circuit.
The limit withstand voltage test method of the present embodiment replaces according to certain hour rule the DC impulse voltage occurred by loading a high-low voltage at measured device two ends, the energy of measured device can be made slowly to increase progressively in time, improve the safety of test process, and the change in voltage at direct-detection tested device two ends can be easy to the limit withstand voltage drawing tested device by detection module; Compared with traditional proving installation, proving installation of the present invention is easy to realization, testing cost is low, and adopt less components and parts to complete, reliability is high.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (12)
1. a limit pressure resistant testing device, is characterized in that, comprising: DC impulse voltage module, tested device and detection module;
Described DC impulse voltage module is carried in described tested device two ends for exporting a DC impulse voltage, and described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Described detection module for detecting the voltage at described tested device two ends, thus obtains the limit withstand voltage of described detected device.
2. limit pressure resistant testing device as claimed in claim 1, it is characterized in that, described DC impulse voltage module comprises: high-low voltage output module and control module;
Described high-low voltage output module is for exporting a High Level DC Voltage and a low dc voltage;
Described control module is used for according to the output voltage of a DC voltage in the high and low DC voltage of Preset Time rule alternate selection as described DC impulse voltage module.
3. limit pressure resistant testing device as claimed in claim 2, it is characterized in that, described high-low voltage output module is the one in following three kinds of structures:
The first, described high-low voltage output module comprises: High Level DC Voltage source module and low dc voltage source module;
Described High Level DC Voltage source module is used for providing a High Level DC Voltage;
Described low dc voltage source module is used for providing a low dc voltage;
The second, described high-low voltage output module comprises: rectification module and voltage transformation module;
Described rectification module is used for carrying out rectification to the alternating voltage of input, is converted into DC voltage;
Described voltage transformation module is used for carrying out conversion output High Level DC Voltage and a low dc voltage to the amplitude of described DC voltage;
The third, described high-low voltage output module comprises: voltage transformation module and rectification module;
Described high voltage conversion module is used for carrying out voltage transformation process to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Described rectification module is used for carrying out rectification to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
4. limit pressure resistant testing device as claimed in claim 1, it is characterized in that, described DC impulse voltage module comprises: high-low voltage output module, control module and rectification module;
Described high-low voltage output module is for exporting a high alternating voltage and a low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Described rectification module is used for carrying out rectification to the alternating voltage that described control module exports, and is converted into DC voltage.
5. limit pressure resistant testing device as claimed in claim 4, it is characterized in that, described high-low voltage output module comprises: high voltage conversion module and low-voltage conversion module;
Described high voltage conversion module is used for the alternating voltage of input to be transformed to high alternating voltage;
Described low-voltage conversion module is used for the alternating voltage of described input to be transformed to low alternating voltage;
Described control module is used for according to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
6. limit pressure resistant testing device as claimed in claim 5, it is characterized in that, described high-low voltage output module also comprises: voltage magnitude adjusting module;
Described voltage magnitude adjusting module is used for adjusting the amplitude of the high and low DC voltage that described rectification module exports.
7. the limit pressure resistant testing device as described in any one of claim 1-6, is characterized in that, described limit pressure resistant testing device also comprises: discharge loop module and voltage attenuation module;
Described discharge loop module between described DC impulse voltage module and described measured device, for when testing is complete, the electric energy of releasing on described measured device;
Described voltage attenuation module between described measured device and described detection module, for reducing the input voltage of described detection module.
8. a limit withstand voltage test method, is characterized in that, comprises the following steps:
Export a DC impulse voltage and be carried in described tested device two ends, described DC impulse voltage is the DC voltage that high-low voltage alternately occurs according to certain hour rule;
Detect the voltage at described tested device two ends, thus obtain the limit withstand voltage of described detected device.
9. limit withstand voltage test method as claimed in claim 8, is characterized in that, described output high-low voltage is carried in described tested device two ends step according to the DC impulse voltage that certain hour rule alternately occurs and comprises:
Export a High Level DC Voltage and a low dc voltage;
Described tested device two ends are carried in as described DC impulse voltage according to a DC voltage in the high and low DC voltage of Preset Time rule alternate selection.
10. limit withstand voltage test method as claimed in claim 9, it is characterized in that, the one below the step of described output High Level DC Voltage and a low dc voltage in three kinds of processes comprises:
The first, the step of described output High Level DC Voltage and a low dc voltage comprises:
Export a High Level DC Voltage by High Level DC Voltage source module, export a low dc voltage by low dc voltage source module;
The second, the step of described output High Level DC Voltage and a low dc voltage comprises:
Rectification is carried out to the alternating voltage of input, is converted into DC voltage;
Conversion output High Level DC Voltage and a low dc voltage are carried out to the amplitude of described DC voltage;
The third, the step of described output High Level DC Voltage and a low dc voltage comprises:
Voltage transformation process is carried out to the alternating voltage of input and exports a high alternating voltage and a low alternating voltage;
Rectification is carried out to described high alternating voltage and described low alternating voltage, described high alternating voltage is converted to High Level DC Voltage, described low alternating voltage is converted to low dc voltage.
11. limit withstand voltage test methods as claimed in claim 8, is characterized in that, described output high-low voltage is carried in described tested device two ends step according to the DC impulse voltage that certain hour rule alternately occurs and comprises:
Export a high alternating voltage and a low alternating voltage;
According to an alternating voltage in the high and low alternating voltage of Preset Time rule alternate selection as output voltage;
Rectification is carried out to the alternating voltage exported, is converted into the two ends that DC voltage is carried in described tested device.
12. limit withstand voltage test methods as claimed in claim 11, is characterized in that, the step of described output high alternating voltage and a low alternating voltage comprises:
Input ac voltage, is transformed to high alternating voltage and the alternating voltage of described input is transformed to low alternating voltage by the alternating voltage of input;
Describedly to comprise according to the step of an alternating voltage in Preset Time rule alternate selection high and low alternating voltage as output voltage:
According to an alternating voltage in the high and low alternating voltage of cycle alternate selection of the alternating voltage of described input as output voltage.
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| CN201310354225.2A CN104375063B (en) | 2013-08-14 | 2013-08-14 | A kind of limit pressure resistant testing device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061846A (en) * | 2017-12-22 | 2018-05-22 | 浙江八达电子仪表有限公司 | A kind of frock of the resistance to tested person of electrolytic capacitor surge voltage |
| CN108519544A (en) * | 2018-04-08 | 2018-09-11 | 国网江苏省电力有限公司苏州供电分公司 | Pressure-resistant test system and test method between a kind of DC voltage support capacitor terminal |
| CN113054907A (en) * | 2021-03-12 | 2021-06-29 | 常州市和普电子科技有限公司 | Photovoltaic module voltage withstanding test method with contact anomaly detection function |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114836U (en) * | 1991-12-04 | 1992-09-02 | 黄传诗 | Pressure-resistant tester |
| US5519324A (en) * | 1993-12-01 | 1996-05-21 | Sumitomo Wiring Systems, Ltd. | Withstand voltage-testing apparatus |
| JP2001296327A (en) * | 2000-04-13 | 2001-10-26 | Nec Corp | Method and apparatus for measurement of withstand current |
| CN1661384A (en) * | 2004-10-09 | 2005-08-31 | 西安交通大学 | Device for testing electric pulse strength for insulation |
| US20060022679A1 (en) * | 2004-07-28 | 2006-02-02 | Kouji Obata | Apparatus for partial discharge detection of turn to turn insulation in motor |
| US20060139968A1 (en) * | 2004-12-28 | 2006-06-29 | Sanken Electric Co., Ltd. | DC conversion apparatus |
| CN200953040Y (en) * | 2006-04-20 | 2007-09-26 | 青岛艾诺电子仪器有限公司 | Turn-to-turn compact resistance voltage testing instrument |
| CN101127484A (en) * | 2007-05-23 | 2008-02-20 | 中国科学院电工研究所 | A digital high voltage DC power |
| CN201199257Y (en) * | 2008-04-18 | 2009-02-25 | 上海仪器仪表研究所 | High-voltage impulse tester |
| WO2011074683A1 (en) * | 2009-12-15 | 2011-06-23 | 株式会社ピューズ | Insulation-degradation detecting device |
| CN102435861A (en) * | 2011-10-31 | 2012-05-02 | 上海思源电力电容器有限公司 | Capacitor component detection system and method |
| CN102901937A (en) * | 2012-08-16 | 2013-01-30 | 柳州市亿宝惠灯具有限公司 | Electrodeless lamp ageing test equipment |
-
2013
- 2013-08-14 CN CN201310354225.2A patent/CN104375063B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114836U (en) * | 1991-12-04 | 1992-09-02 | 黄传诗 | Pressure-resistant tester |
| US5519324A (en) * | 1993-12-01 | 1996-05-21 | Sumitomo Wiring Systems, Ltd. | Withstand voltage-testing apparatus |
| JP2001296327A (en) * | 2000-04-13 | 2001-10-26 | Nec Corp | Method and apparatus for measurement of withstand current |
| US20060022679A1 (en) * | 2004-07-28 | 2006-02-02 | Kouji Obata | Apparatus for partial discharge detection of turn to turn insulation in motor |
| CN1661384A (en) * | 2004-10-09 | 2005-08-31 | 西安交通大学 | Device for testing electric pulse strength for insulation |
| US20060139968A1 (en) * | 2004-12-28 | 2006-06-29 | Sanken Electric Co., Ltd. | DC conversion apparatus |
| CN200953040Y (en) * | 2006-04-20 | 2007-09-26 | 青岛艾诺电子仪器有限公司 | Turn-to-turn compact resistance voltage testing instrument |
| CN101127484A (en) * | 2007-05-23 | 2008-02-20 | 中国科学院电工研究所 | A digital high voltage DC power |
| CN201199257Y (en) * | 2008-04-18 | 2009-02-25 | 上海仪器仪表研究所 | High-voltage impulse tester |
| WO2011074683A1 (en) * | 2009-12-15 | 2011-06-23 | 株式会社ピューズ | Insulation-degradation detecting device |
| CN102435861A (en) * | 2011-10-31 | 2012-05-02 | 上海思源电力电容器有限公司 | Capacitor component detection system and method |
| CN102901937A (en) * | 2012-08-16 | 2013-01-30 | 柳州市亿宝惠灯具有限公司 | Electrodeless lamp ageing test equipment |
Non-Patent Citations (3)
| Title |
|---|
| 孙东凯: "匝间耐压测试仪的波形形成机制和工作原理", 《中国仪器仪表》 * |
| 徐孝寅: "电机绝缘的耐压试验", 《电机技术》 * |
| 黄少良: "在认证中电器产品的耐压测试", 《电子质量》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061846A (en) * | 2017-12-22 | 2018-05-22 | 浙江八达电子仪表有限公司 | A kind of frock of the resistance to tested person of electrolytic capacitor surge voltage |
| CN108519544A (en) * | 2018-04-08 | 2018-09-11 | 国网江苏省电力有限公司苏州供电分公司 | Pressure-resistant test system and test method between a kind of DC voltage support capacitor terminal |
| CN108519544B (en) * | 2018-04-08 | 2023-10-20 | 国网江苏省电力有限公司苏州供电分公司 | Withstand voltage test system and test method between terminals of direct-current voltage supporting capacitor |
| CN113054907A (en) * | 2021-03-12 | 2021-06-29 | 常州市和普电子科技有限公司 | Photovoltaic module voltage withstanding test method with contact anomaly detection function |
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