CN205038299U - Transformer partial discharge hyperfrequency detection device - Google Patents
Transformer partial discharge hyperfrequency detection device Download PDFInfo
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- CN205038299U CN205038299U CN201520818609.XU CN201520818609U CN205038299U CN 205038299 U CN205038299 U CN 205038299U CN 201520818609 U CN201520818609 U CN 201520818609U CN 205038299 U CN205038299 U CN 205038299U
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Abstract
The utility model relates to a transformer partial discharge hyperfrequency detection device, it includes the transmission line, the input of transmission line is connected with the ultra -high frequency antenna, the output of transmission line is connected with the mixing and takes care of the unit, the output that the unit was taked care of in the mixing is connected with data collection card, data collection card's input is connected with the mixing and takes care of unit and IO interface, data collection card's output is connected with industry control PC terminal, the input at industry control PC terminal is connected with data collection card, the output at industry control PC terminal is connected with the IO interface, the input source of ultra -high frequency antenna is the signal that discharges, the mixing is taked care of the main part of unit and comprises clipper -limiter, preamplifier, mixture frequency device, IF amplifier, low pass filter, detection logarithmic amplifier, output interface, PC parallel port, frequency synthesizer, input interface, the utility model has the advantages of the comprehensive accuracy of anti -interference, information monitoring, advanced technology, degree of automation height.
Description
Technical field
The utility model belongs to partial discharge of transformer detection technique field, is specifically related to a kind of transformer partial discharge super high frequency detector.
Background technology
Along with the growth of the installed capacity of electric power transport, more and more higher to the requirement of the security of powering, reliability, therefore on-line monitoring and fault diagonosing must be carried out to the duty of allocation transformer equipment especially transformer, the normal operation of equipment can be ensured, be convenient to again the maintenance of equipment, and the local discharge superhigh frequency detection of transformer is the key issue of office's electric discharge always, especially its frequency is high, the duration is short, interference source is more, therefore needs a kind of transformer partial discharge super high frequency detector.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of anti-interference, Information Monitoring comprehensively accurately, transformer partial discharge super high frequency detector that advanced technology, automaticity are high.
The purpose of this utility model is achieved in that a kind of transformer partial discharge super high frequency detector, it comprises transmission line, the input end of described transmission line is connected with ultra-high frequency antenna, the output terminal of described transmission line is connected with mixing conditioning unit, the output terminal of described mixing conditioning unit is connected with data collecting card, the input end of described data collecting card is connected with mixing conditioning unit and I/O interface, the output terminal of described data collecting card is connected with industry PC terminal, the input end of described industry PC terminal is connected with data collecting card, the output terminal of described industry PC terminal is connected with I/O interface, the input source of described ultra-high frequency antenna is discharge signal, the main body of described mixing conditioning unit is made up of limiter, prime amplifier, hybrid frequency device, intermediate frequency amplifier, low-pass filter, demodulating logarithmic amplifier, output interface, PC parallel port, frequency synthesizer, input interface, and described input interface is connected with prime amplifier and limiter, described limiter one end connects input interface, and the other end of limiter connects the earth, the input end of described prime amplifier is connected with input interface, and the output terminal of prime amplifier is connected with hybrid frequency device, the input end of described hybrid frequency device is connected with prime amplifier and frequency synthesizer, and the output terminal of hybrid frequency device is connected with intermediate frequency amplifier, the output terminal of described intermediate frequency amplifier is connected with low-pass filter, and the input end of intermediate frequency amplifier is connected with hybrid frequency device, the output terminal of described low-pass filter is connected with demodulating logarithmic amplifier, and the input end of low-pass filter is connected with intermediate frequency amplifier and PC parallel port, the input end of described demodulating logarithmic amplifier is connected with low-pass filter, and the output terminal of demodulating logarithmic amplifier is connected with output interface.
Described transmission line is cable or optical fiber.
The frequency band range of described prime amplifier is 0 to 1000MHz.
Described hybrid frequency device local oscillator input range is 10MHz to 2GHz.
The centre frequency of described frequency synthesizer is 200 to 1000MHz.
The bandwidth of described low-pass filter is provided with 10MHz, 20MHz, 40MHz, 80MHz, 100MHz gear.
The beneficial effects of the utility model: the utility model constitutes a kind of transformer partial discharge super high frequency detector by adopting ultra-high frequency antenna, transmission line, mixing conditioning unit, data collecting card, industry PC terminal, I/O interface, have anti-interference, that Information Monitoring is comprehensive accurately, advanced technology, automaticity are high advantage; The hybrid frequency device that the utility model is arranged, local discharge signal ultrahigh frequency component is extracted by frequency mixing technique, peak value and phase characteristic can be had by stick signal envelope, again reduce the frequency of ultra-high frequency signal, the central frequency range of effective extraction is wide, has strong interference immunity, advantage that discharge information is abundant; The limiter that the utility model is arranged, can prevent transient state high-energy from damaging mixing conditioning unit and data collecting card, has that security is high, cost is low, the advantage of practical function; The prime amplifier that the utility model is arranged, there is the effect of amplifying signal, ensure that the power magnitude of discharge signal signal when arriving mixing conditioning unit through transmission is in the input range required, its frequency band range is 0 to 1000MHz, has that wide coverage, cost are low, the advantage of practical function; The hybrid frequency device local oscillator input range that the utility model is arranged is 10MHz to 2GHz, is mainly frequency reducing effect, has that wide coverage, cost are low, the advantage of practical function; The intermediate-freuqncy signal that the intermediate frequency amplifier that the utility model is arranged is mainly used in mixing exports is amplified, and is convenient to subsequent treatment, has the advantage that the simple cost of structure is low; The centre frequency of the frequency synthesizer that the utility model is arranged is 200 to 1000MHz, exports the local oscillation signal met the demands, is adjusted, have the advantage that scope is wide, cost is low by computer parallel interface to frequency synthesizer; The bandwidth of low-pass filter that the utility model is arranged is provided with 10MHz, 20MHz, 40MHz, 80MHz, 100MHz gear, have that scope is wide, cost is low, digitizing, advantage that precision is high; Total the utility model, has anti-interference, that Information Monitoring is comprehensive accurately, advanced technology, automaticity are high advantage.
Accompanying drawing explanation
Fig. 1 is the hybrid frequency apparatus structure schematic diagram of a kind of transformer partial discharge super high frequency detector of the utility model.
Fig. 2 is the system architecture schematic diagram of a kind of transformer partial discharge super high frequency detector of the utility model.
In figure: 1, limiter 2, prime amplifier 3, hybrid frequency device 4, intermediate frequency amplifier 5, low-pass filter 6, demodulating logarithmic amplifier 7, output interface 8, PC parallel port 9, frequency synthesizer 10, input interface.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1
As Fig. 1, shown in Fig. 2, a kind of transformer partial discharge super high frequency detector, it comprises transmission line, the input end of described transmission line is connected with ultra-high frequency antenna, the output terminal of described transmission line is connected with mixing conditioning unit, the output terminal of described mixing conditioning unit is connected with data collecting card, the input end of described data collecting card is connected with mixing conditioning unit and I/O interface, the output terminal of described data collecting card is connected with industry PC terminal, the input end of described industry PC terminal is connected with data collecting card, the output terminal of described industry PC terminal is connected with I/O interface, the input source of described ultra-high frequency antenna is discharge signal, the main body of described mixing conditioning unit is made up of limiter 1, prime amplifier 2, hybrid frequency device 3, intermediate frequency amplifier 4, low-pass filter 5, demodulating logarithmic amplifier 6, output interface 7, PC parallel port 8, frequency synthesizer 9, input interface 10, and described input interface 10 is connected with prime amplifier 2 and limiter 1, described limiter 1 one end connects input interface 10, and the other end of limiter 1 connects the earth, the input end of described prime amplifier 2 is connected with input interface 10, and the output terminal of prime amplifier 2 is connected with hybrid frequency device 3, the input end of described hybrid frequency device 3 is connected with prime amplifier 2 and frequency synthesizer 9, and the output terminal of hybrid frequency device 3 is connected with intermediate frequency amplifier 4, the output terminal of described intermediate frequency amplifier 4 is connected with low-pass filter 5, and the input end of intermediate frequency amplifier 4 is connected with hybrid frequency device 3, the output terminal of described low-pass filter 5 is connected with demodulating logarithmic amplifier 6, and the input end of low-pass filter 5 is connected with intermediate frequency amplifier 4 and PC parallel port 8, the input end of described demodulating logarithmic amplifier 6 is connected with low-pass filter 5, and the output terminal of demodulating logarithmic amplifier 6 is connected with output interface 7.
When the utility model is implemented, first by adopting limiter, prime amplifier, hybrid frequency device, intermediate frequency amplifier, low-pass filter, demodulating logarithmic amplifier, output interface, PC parallel port, frequency synthesizer, input interface composition mixing conditioning unit, then ultra-high frequency antenna is connected mixing conditioning unit by transmission line, then mixing conditioning unit successively connection data capture card, industry PC terminal, then industry PC terminal is passed through I/O interfacing data capture card; The utility model achieves that bandwidth is optional, the bandpass filter of regulable center frequency, local discharge superhigh frequency signal is adjusted centre frequency by frequency reducing, under stick signal peak value and phase characteristic, there is applied widely, that the simple cost of structure is low, practical advantage; The utility model employing frequency mixing technique can extract the ultra high frequency discharge signal that model is put in transformer typical case office effectively, has high, applied widely, the jamproof advantage of precision; The utility model is by the centre frequency composition mixing conditioning unit of hybrid frequency device, limiter, prime amplifier, intermediate frequency amplifier, frequency synthesizer, low-pass filter, hybrid frequency device extracts local discharge signal ultrahigh frequency component by frequency mixing technique, frequency of heart scope is wide, strong interference immunity; Limiter can prevent transient state high-energy from damaging mixing conditioning unit and data collecting card, security is high, cost is low, practical function, the prime amplifier wherein arranged, hybrid frequency device, intermediate frequency amplifier, frequency synthesizer, low-pass filter, comprehensively have that wide coverage, cost are low, practical function, structure simple, digitizing, advantage that precision is high; Total the utility model, has anti-interference, that Information Monitoring is comprehensive accurately, advanced technology, automaticity are high advantage.
Embodiment 2
As Fig. 1, shown in Fig. 2, a kind of transformer partial discharge super high frequency detector, it comprises transmission line, the input end of described transmission line is connected with ultra-high frequency antenna, the output terminal of described transmission line is connected with mixing conditioning unit, the output terminal of described mixing conditioning unit is connected with data collecting card, the input end of described data collecting card is connected with mixing conditioning unit and I/O interface, the output terminal of described data collecting card is connected with industry PC terminal, the input end of described industry PC terminal is connected with data collecting card, the output terminal of described industry PC terminal is connected with I/O interface, the input source of described ultra-high frequency antenna is discharge signal, the main body of described mixing conditioning unit is made up of limiter 1, prime amplifier 2, hybrid frequency device 3, intermediate frequency amplifier 4, low-pass filter 5, demodulating logarithmic amplifier 6, output interface 7, PC parallel port 8, frequency synthesizer 9, input interface 10, and described input interface 10 is connected with prime amplifier 2 and limiter 1, described limiter 1 one end connects input interface 10, and the other end of limiter 1 connects the earth, the input end of described prime amplifier 2 is connected with input interface 10, and the output terminal of prime amplifier 2 is connected with hybrid frequency device 3, the input end of described hybrid frequency device 3 is connected with prime amplifier 2 and frequency synthesizer 9, and the output terminal of hybrid frequency device 3 is connected with intermediate frequency amplifier 4, the output terminal of described intermediate frequency amplifier 4 is connected with low-pass filter 5, and the input end of intermediate frequency amplifier 4 is connected with hybrid frequency device 3, the output terminal of described low-pass filter 5 is connected with demodulating logarithmic amplifier 6, and the input end of low-pass filter 5 is connected with intermediate frequency amplifier 4 and PC parallel port 8, the input end of described demodulating logarithmic amplifier 6 is connected with low-pass filter 5, the output terminal of demodulating logarithmic amplifier 6 is connected with output interface 7, described transmission line is cable or optical fiber, the frequency band range of described prime amplifier 2 is 0 to 1000MHz, described hybrid frequency device 3 local oscillator input range is 10MHz to 2GHz, the centre frequency of described frequency synthesizer 9 is 200 to 1000MHz, and the bandwidth of described low-pass filter 5 is provided with 10MHz, 20MHz, 40MHz, 80MHz, 100MHz gear.
When the utility model is implemented, first by adopting limiter, prime amplifier, hybrid frequency device, intermediate frequency amplifier, low-pass filter, demodulating logarithmic amplifier, output interface, PC parallel port, frequency synthesizer, input interface composition mixing conditioning unit, then ultra-high frequency antenna is connected mixing conditioning unit by transmission line, then mixing conditioning unit successively connection data capture card, industry PC terminal, then industry PC terminal is passed through I/O interfacing data capture card; The utility model achieves that bandwidth is optional, the bandpass filter of regulable center frequency, local discharge superhigh frequency signal is adjusted centre frequency by frequency reducing, under stick signal peak value and phase characteristic, there is applied widely, that the simple cost of structure is low, practical advantage; The utility model employing frequency mixing technique can extract the ultra high frequency discharge signal that model is put in transformer typical case office effectively, has high, applied widely, the jamproof advantage of precision; The prime amplifier that the utility model is arranged, there is the effect of amplifying signal, ensure that the power magnitude of discharge signal signal when arriving mixing conditioning unit through transmission is in the input range required, its frequency band range is 0 to 1000MHz, has that wide coverage, cost are low, the advantage of practical function; The hybrid frequency device local oscillator input range that the utility model is arranged is 10MHz to 2GHz, is mainly frequency reducing effect, has that wide coverage, cost are low, the advantage of practical function; The intermediate-freuqncy signal that the intermediate frequency amplifier that the utility model is arranged is mainly used in mixing exports is amplified, and is convenient to subsequent treatment, has the advantage that the simple cost of structure is low; The centre frequency of the frequency synthesizer that the utility model is arranged is 200 to 1000MHz, exports the local oscillation signal met the demands, is adjusted, have the advantage that scope is wide, cost is low by computer parallel interface to frequency synthesizer; The bandwidth of low-pass filter that the utility model is arranged is provided with 10MHz, 20MHz, 40MHz, 80MHz, 100MHz gear, have that scope is wide, cost is low, digitizing, advantage that precision is high; Total the utility model, has anti-interference, that Information Monitoring is comprehensive accurately, advanced technology, automaticity are high advantage.
Claims (6)
1. a transformer partial discharge super high frequency detector, it comprises transmission line, it is characterized in that: the input end of described transmission line is connected with ultra-high frequency antenna, the output terminal of described transmission line is connected with mixing conditioning unit, the output terminal of described mixing conditioning unit is connected with data collecting card, the input end of described data collecting card is connected with mixing conditioning unit and I/O interface, the output terminal of described data collecting card is connected with industry PC terminal, the input end of described industry PC terminal is connected with data collecting card, the output terminal of described industry PC terminal is connected with I/O interface, the input source of described ultra-high frequency antenna is discharge signal,
The main body of described mixing conditioning unit is made up of limiter, prime amplifier, hybrid frequency device, intermediate frequency amplifier, low-pass filter, demodulating logarithmic amplifier, output interface, PC parallel port, frequency synthesizer, input interface, and described input interface is connected with prime amplifier and limiter; Described limiter one end connects input interface, and the other end of limiter connects the earth; The input end of described prime amplifier is connected with input interface, and the output terminal of prime amplifier is connected with hybrid frequency device; The input end of described hybrid frequency device is connected with prime amplifier and frequency synthesizer, and the output terminal of hybrid frequency device is connected with intermediate frequency amplifier; The output terminal of described intermediate frequency amplifier is connected with low-pass filter, and the input end of intermediate frequency amplifier is connected with hybrid frequency device; The output terminal of described low-pass filter is connected with demodulating logarithmic amplifier, and the input end of low-pass filter is connected with intermediate frequency amplifier and PC parallel port; The input end of described demodulating logarithmic amplifier is connected with low-pass filter, and the output terminal of demodulating logarithmic amplifier is connected with output interface.
2. a kind of transformer partial discharge super high frequency detector according to claim 1, is characterized in that: described transmission line is cable or optical fiber.
3. a kind of transformer partial discharge super high frequency detector according to claim 1, is characterized in that: the frequency band range of described prime amplifier is 0 to 1000MHz.
4. a kind of transformer partial discharge super high frequency detector according to claim 1, is characterized in that: described hybrid frequency device local oscillator input range is 10MHz to 2GHz.
5. a kind of transformer partial discharge super high frequency detector according to claim 1, is characterized in that: the centre frequency of described frequency synthesizer is 200 to 1000MHz.
6. a kind of transformer partial discharge super high frequency detector according to claim 1, is characterized in that: the bandwidth of described low-pass filter is provided with 10MHz, 20MHz, 40MHz, 80MHz, 100MHz gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818609.XU CN205038299U (en) | 2015-10-22 | 2015-10-22 | Transformer partial discharge hyperfrequency detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818609.XU CN205038299U (en) | 2015-10-22 | 2015-10-22 | Transformer partial discharge hyperfrequency detection device |
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| Publication Number | Publication Date |
|---|---|
| CN205038299U true CN205038299U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520818609.XU Expired - Fee Related CN205038299U (en) | 2015-10-22 | 2015-10-22 | Transformer partial discharge hyperfrequency detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205038299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137312A (en) * | 2015-10-22 | 2015-12-09 | 国网河南禹州市供电公司 | Transformer partial discharge ultrahigh frequency detection device |
| CN110045256A (en) * | 2019-05-17 | 2019-07-23 | 广东电网有限责任公司 | A kind of SHF frequency range local discharge signal reception circuit |
-
2015
- 2015-10-22 CN CN201520818609.XU patent/CN205038299U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137312A (en) * | 2015-10-22 | 2015-12-09 | 国网河南禹州市供电公司 | Transformer partial discharge ultrahigh frequency detection device |
| CN110045256A (en) * | 2019-05-17 | 2019-07-23 | 广东电网有限责任公司 | A kind of SHF frequency range local discharge signal reception circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20191022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |