CN203490331U - Digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device - Google Patents
Digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device Download PDFInfo
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- CN203490331U CN203490331U CN201320590651.1U CN201320590651U CN203490331U CN 203490331 U CN203490331 U CN 203490331U CN 201320590651 U CN201320590651 U CN 201320590651U CN 203490331 U CN203490331 U CN 203490331U
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Abstract
The utility model discloses a digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device, comprising an isolation transformer. A signal output end of the isolation transformer is connected with a signal input end of a low pass filter. A signal output end of the low pass filter is connected with a tested product testing end and a voltage dividing capacitor through a transformer and a protective resistor. A signal output end of the voltage dividing capacitor is connected with a signal input end of a PLC through a voltage acquisition unit. Signal output ends of the PLC communicate data with an alternating-current relay control unit and a host computer. Signal input ends of the isolation transformer are connected with a signal output end of a single-phase pressure regulator and a signal output end of a tri-frequency multiplication pressure regulator respectively. A signal input end of the tri-frequency multiplication pressure regulator is connected with a signal output end of a tri-frequency multiplication transformer. A compensation reactor is connected between the low pass filter and the transformer. The digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device solves a problem of low production efficiency, improves the degree of automation of the pressure regulating test and can be used in the transformer testing.
Description
Technical field
Tester is put in the utility model office of relating to, and particularly measure and control device is put in a kind of multiple frequence office.
Background technology
Present Domestic transformer production producer need adopt industrial frequency withstand voltage test platform to carry out the test of transformer alternating voltage-withstand test, and industrial frequency withstand voltage test platform is mainly comprised of manual power frequency pressure regulator, isolating transformer, low-pass filter, transformer, protective resistance, voltage-dividing capacitor.When needs carry out the test of transformer induction voltage-withstand test, first frequency tripling transformer and frequency tripling pressure regulator are replaced to power frequency pressure regulator, at the output terminal of low-pass filter according to the characteristic of test product and connect corresponding compensation reactor, above working method has following problem: 1) owing to being manual voltage regulation mode, in pressure regulation process, can not at the uniform velocity change, can not accomplish to settle at one go, thereby can not carry out robotization pressure regulation test; 2) testing different parameters all needs again to overlap test platform, has increased user's labour intensity, seriously reduces production efficiency; 3) because this test mode has determined to carry out manual record test result, therefore the possibility that exists logging test results link to make mistakes.
Utility model content
The purpose of this utility model is to provide the integrated multiple frequence of a kind of digital multifunctional office and puts measure and control device, solved the problem that pressure regulation process is unstable, labour intensity is large, production efficiency is low, improve the automaticity of pressure regulation test, reduce labour intensity, enhance productivity and measuring accuracy.
The purpose of this utility model is achieved in that the integrated multiple frequence of a kind of digital multifunctional office puts measure and control device, comprise isolating transformer, the signal output part of described isolating transformer is connected with the signal input part of low-pass filter, the signal output part of described low-pass filter is connected with the signal input part of transformer, the signal output part of described transformer through protective resistance respectively with test product test lead, voltage-dividing capacitor is connected, the signal output part of described voltage-dividing capacitor is connected with the signal input part of PLC through output voltage collecting unit, the signal output part of described PLC is connected with AC relay control module, described PLC also carries out data communication with host computer, the signal input part of described isolating transformer is connected with the signal output part of single-phase voltage regulator through the first A.C. contactor normally opened contact K1-1 respectively, the second A.C. contactor normally opened contact K2-1 is connected with the signal output part of frequency tripling pressure regulator, the signal input part of described frequency tripling pressure regulator is connected with the signal output part of frequency tripling transformer, between described low-pass filter and transformer, through the 3rd A.C. contactor normally opened contact K3-1 side, be connected to compensation reactor.
During the utility model work, while selecting frequency tripling test, PC control software is controlled AC relay control module by PLC and is controlled the first A.C. contactor normally opened contact K1-1 and disconnect, and controls the second A.C. contactor normally opened contact K2-1, the 3rd A.C. contactor normally opened contact K3-1 is closed; When selecting power frequency test, PC control software is controlled the closed disconnection of the second A.C. contactor normally opened contact K2-1, the 3rd A.C. contactor normally opened contact K3-1 by PLC, controls the first A.C. contactor normally opened contact K1-1 closed.Compared with prior art, the beneficial effects of the utility model are, the utility model just can be realized the automatic conversion of power frequency and frequency tripling test platform by PC control contactor break-make, on-the-spot without manually taking out stitches, wiring, greatly improved testing efficiency, strengthened the stability of pressure regulation process, reduced staff's labour intensity, during the utility model work, by output voltage collecting unit by the voltage Real-time Feedback of test product test lead to PLC, to improve security and the reliability of test process.The utility model can be used in transformer testing.
In order to increase the scope of application of the present utility model, the signal output part of described transformer is also connected with coupling capacitance through protective resistance, and described coupling capacitance is connected with PD meter through input block.Make the utility model can carry out office and put parameter testing.
Accompanying drawing explanation
Fig. 1 is the utility model control principle block diagram.
Frequency tripling test isoboles when Fig. 2 is the utility model work.
Power frequency test isoboles when Fig. 3 is the utility model work.
Embodiment
Measure and control device is put in the integrated multiple frequence of a kind of digital multifunctional office as shown in Figure 1, comprise isolating transformer, the signal output part of isolating transformer is connected with the signal input part of low-pass filter, the signal output part of low-pass filter is connected with the signal input part of transformer, the signal output part of transformer through protective resistance respectively with test product test lead, voltage-dividing capacitor is connected, the signal output part of voltage-dividing capacitor is connected with the signal input part of PLC through output voltage collecting unit, the signal output part of PLC is connected with AC relay control module, PLC also carries out data communication with host computer, the signal input part of isolating transformer is connected with the signal output part of single-phase voltage regulator through the first A.C. contactor normally opened contact K1-1 respectively, the second A.C. contactor normally opened contact K2-1 is connected with the signal output part of frequency tripling pressure regulator, the signal input part of frequency tripling pressure regulator is connected with the signal output part of frequency tripling transformer, between low-pass filter and transformer, through the 3rd A.C. contactor normally opened contact K3-1 side, be connected to compensation reactor, the signal output part of transformer is also connected with coupling capacitance through protective resistance, coupling capacitance is connected with PD meter through input block.
During the utility model work, while selecting frequency tripling test, as shown in Figure 2, PC control software is controlled AC relay control module by PLC and is controlled the first A.C. contactor normally opened contact K1-1 and disconnect, and controls the second A.C. contactor normally opened contact K2-1, the 3rd A.C. contactor normally opened contact K3-1 is closed; When selecting power frequency test, as shown in Figure 3, PC control software is controlled the closed disconnection of the second A.C. contactor normally opened contact K2-1, the 3rd A.C. contactor normally opened contact K3-1 by PLC, controls the first A.C. contactor normally opened contact K1-1 closed.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (2)
1. measure and control device is put in the integrated multiple frequence of a digital multifunctional office, comprise isolating transformer, the signal output part of described isolating transformer is connected with the signal input part of low-pass filter, the signal output part of described low-pass filter is connected with the signal input part of transformer, the signal output part of described transformer through protective resistance respectively with test product test lead, voltage-dividing capacitor is connected, it is characterized in that, the signal output part of described voltage-dividing capacitor is connected with the signal input part of PLC through output voltage collecting unit, the signal output part of described PLC is connected with AC relay control module, described PLC also carries out data communication with host computer, the signal input part of described isolating transformer is connected with the signal output part of single-phase voltage regulator through the first A.C. contactor normally opened contact (K1-1) respectively, the second A.C. contactor normally opened contact (K2-1) is connected with the signal output part of frequency tripling pressure regulator, the signal input part of described frequency tripling pressure regulator is connected with the signal output part of frequency tripling transformer, between described low-pass filter and transformer, through the 3rd A.C. contactor normally opened contact (K3-1) side, be connected to compensation reactor.
2. measure and control device is put in the integrated multiple frequence of a kind of digital multifunctional according to claim 1 office, it is characterized in that, the signal output part of described transformer is also connected with coupling capacitance through protective resistance, and described coupling capacitance is connected with PD meter through input block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590651.1U CN203490331U (en) | 2013-09-24 | 2013-09-24 | Digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590651.1U CN203490331U (en) | 2013-09-24 | 2013-09-24 | Digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490331U true CN203490331U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590651.1U Expired - Fee Related CN203490331U (en) | 2013-09-24 | 2013-09-24 | Digital multifunctional integrated multi-frequency multiplication partial discharge measuring and controlling device |
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| CN (1) | CN203490331U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991592A (en) * | 2017-11-27 | 2018-05-04 | 国网安徽省电力公司亳州供电公司 | Partial discharge of switchgear test platform and test method |
| CN112556749A (en) * | 2020-11-30 | 2021-03-26 | 薛峰 | Detection method for redundant measurement and control device |
-
2013
- 2013-09-24 CN CN201320590651.1U patent/CN203490331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991592A (en) * | 2017-11-27 | 2018-05-04 | 国网安徽省电力公司亳州供电公司 | Partial discharge of switchgear test platform and test method |
| CN112556749A (en) * | 2020-11-30 | 2021-03-26 | 薛峰 | Detection method for redundant measurement and control device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20170924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |