CN104502821A - Capacitive sensor based on-line switch cabinet partial discharge monitoring system and method - Google Patents

Capacitive sensor based on-line switch cabinet partial discharge monitoring system and method Download PDF

Info

Publication number
CN104502821A
CN104502821A CN201410837141.9A CN201410837141A CN104502821A CN 104502821 A CN104502821 A CN 104502821A CN 201410837141 A CN201410837141 A CN 201410837141A CN 104502821 A CN104502821 A CN 104502821A
Authority
CN
China
Prior art keywords
phase
circuit
display circuit
partial discharge
capacitive transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410837141.9A
Other languages
Chinese (zh)
Other versions
CN104502821B (en
Inventor
宋佳佳
张金波
张博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Focus Power Equipment Co ltd
Original Assignee
Changzhou Campus of Hohai University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Campus of Hohai University filed Critical Changzhou Campus of Hohai University
Priority to CN201410837141.9A priority Critical patent/CN104502821B/en
Publication of CN104502821A publication Critical patent/CN104502821A/en
Application granted granted Critical
Publication of CN104502821B publication Critical patent/CN104502821B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a capacitive sensor based on-line switch cabinet partial discharge monitoring system and method. The system comprises an A-phase inductive capacitive sensor, a B-phase inductive capacitive sensor, a C-phase inductive capacitive sensor, an A-phase live display circuit, a B-phase live display circuit, a C-phase live display circuit, a centralized collector and a cloud service monitoring center. The inductive capacitive sensors are adopted to collect partial discharge monitoring signals from nuclear phase holes of a charge indicator on a switch cabinet, partial discharge degree of the switch cabinet is judged by means of an impulse current method and a spectral method, on-line monitoring of the switch cabinet partial discharge is realized, the partial discharge signals are easy to collect, a measuring instrument is simple to install and low in cost, expensive sensors are not needed, and on-line partial discharge monitoring promotion is facilitated.

Description

Based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method
Technical field
The present invention relates to a kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method, belong to technical field of electric power.
Background technology
In recent years, the application of electric system breaker in middle cabinet is more and more wider, the electric power accident quantity that deficiency and the switch cubicle insulation characterisitic deterioration put into operation of switch cubicle field testing procedure cause rises year by year, and the safe operation of electric system in serious threat, finally affects power supply quality and power supply reliability.
According to statistics, cause in the factor of switch cubicle insulation characterisitic deterioration, the deterioration caused by shelf depreciation accounts for 85%.Therefore, how effectively to find the shelf depreciation of switch cubicle, detecting that potential insulation fault has become power monitoring department and has day by day been concerned about and problem demanding prompt solution in time, is also the focus of current associated mechanisms and scientific and technical personnel's research.
In switch cubicle insulation system, the electric field intensity at each position there are differences, the electric field intensity in certain region is once reach its breakdown field strength, this region will Discharge Phenomena, but execute between alive two conductors and do not run through whole discharge process, namely discharge and do not puncture insulation system, this phenomenon is shelf depreciation.
Shelf depreciation is a kind of pulse phenomenon, the process of shelf depreciation except along with except the transfer of electric charge and the loss of electric energy, also can produce electromagnetic radiation, ultrasonic, luminous, generate heat and occur new product etc.Ultrasonic measurement and transient state low-voltage measure the measurement way summed up based on these attendant phenomenons exactly.
Transient state low-voltage method: in order to reduce equipment size, make structure compacter, current switch cubicle manufacturing firm have employed a large amount of insulating material in the manufacture of switch cubicle, as the CT of poured with epoxy resin, PT, static contact box, wall bushing and phase partition etc., if there is shelf depreciation in these insulating material inside, by the impact of skin effect, current traveling wave often instrument concentrates on the inside surface of metal cabinet, and can not direct penetrating metal cabinet, fraction is blazed abroad by the seam crossing of metal shell or the liner of gas-insulated switch, produce an instantaneous voltage-to-ground simultaneously, gone down with passing to by the metal shell outside surface of equipment.On switch cabinet shell body, the change of transient state voltage-to-ground can induce high-frequency current on the metal polar plate of sensor, processes, indirectly can obtain intensity and the frequency of shelf depreciation to the high-frequency current that sensor exports.The pace of change of this detection method paired pulses is more responsive, is relatively applicable to the electric discharge detecting media interior.
Because electric discharge is moment, therefore the pulse that waveform is a single is put in office, after electric discharge terminates, due to the discharge and recharge effect of impurity electric capacity, waveform can be tending towards smooth again through the vibration of short time, the present invention proposes a kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring system for this reason, native system adopts and obtains Partial discharge signal from switch cabinet electrified indicator nuclear phase hole, as long as phenomenon is put in a certain office of generation mutually in switch cubicle, discharge current signal is put in the capacitive transducer striking out that will be coupled, discharge current signal is put in the office that just indirectly can be taken out coupling by nuclear phase hole, now discharge current there will be discharge pulse, utilize pulse current method, and in conjunction with current spectrum method, whether generation office puts can to diagnose out this phase exactly, and the degree that generation office puts, a kind of Novel switch cabinet office puts on-Line Monitor Device feature and is: make the acquisition of Partial discharge signal become simple, and surveying instrument is installed simple, cost is low, do not need high sensor, be convenient to office and put on-line monitoring popularization.
Summary of the invention
Technical matters to be solved by this invention is, how to adopt induction type capacitive transducer, from switch cubicle, monitor signal is put in the potential indicator nuclear phase hole office of getting, degree is put in switch cubicle generation office to utilize pulse current method and Spectrum Method to judge, realize the on-line monitoring of switch cabinet partial discharge, to ensure the healthy and safe operation of switch cubicle.
For solving the problems of the technologies described above, the invention provides a kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring system, comprise A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer, the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase, concentrated collection device, cloud service Surveillance center; Described A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer are installed in switch cabinet outlet end, the output terminal of A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer is connected with the input end of the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase respectively, and the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase are arranged on the cabinet door-plate of switch cubicle; The nuclear phase hole of the charged display circuit of described A phase, the charged display circuit of B phase, the charged display circuit of C phase is connected with concentrated collection device input end respectively, and concentrated collection device is arranged on the cabinet door-plate of switch cubicle; Described concentrated collection device and cloud service Surveillance center are by wired or wireless mode transfer data information, described cloud service Surveillance center receives and puts data from concentrated collection general ability, to the data analysis received, storage, statistics, spectrum curve is put in the office of drawing, and forms all kinds of statistical report form.
Above-mentioned concentrated collection device comprises A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit, memory circuit, power circuit, high speed microprocessor circuit, display circuit, warning circuit, keyboard circuit, clock circuit, communication interface circuit; Partial discharge signal in described A phase signals modulate circuit takes from A phase nuclear phase hole; Partial discharge signal in B phase signals modulate circuit takes from B phase nuclear phase hole; Partial discharge signal in C phase signals modulate circuit takes from C phase nuclear phase hole; The output terminal of described A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit is connected with the input end of high speed microprocessor circuit respectively; The output terminal of memory circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of display circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of warning circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of keyboard circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of clock circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of power circuit is connected with the power end of high speed microprocessor circuit; Communication interface circuit is connected with the communication port of high speed microprocessor circuit.
Above-mentioned display circuit comprises electrification indicating circuit and is arranged on A phase nuclear phase hole on charged display circuit, B phase nuclear phase hole, C phase nuclear phase hole, only three measurement terminal need be inserted corresponding nuclear phase hole during measurement inner, just can obtain office's discharge stream signal of tested phase, owing to being all provided with display circuit on switch cubicle, induction type capacitive transducer is as standard configuration device, do not need when monitoring is put in office like this induction type capacitive transducer is installed separately, from display circuit nuclear phase hole, directly obtain the Partial discharge signal of collection.
A kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring method, utilize above-mentioned system, step is as follows:
(1), high speed microprocessor circuit utilizes induction type capacitive transducer to process the office's information of putting collected, pulse current when generation is put in acquisition office and pulse current spectrogram;
(2), according to pulse current method and pulse current Spectrum Method comprehensive descision whether generation office to put and the degree of generation is put in office;
(3), when in switch cubicle, generation office in somewhere puts, continuous discharge phenomenon is produced to electronegative potential point, the sinusoidal current signal of standard is originally made to distort like this, form pulse current, and the current signal containing different frequency in electric current, by analysis spectrum figure frequency range, just indirectly can determine that the degree of generation is put in inside switch cabinet office.
This kind of method due to utilize high-tension switch cabinet to install alive circuit nuclear phase hole in directly acquisition office put measuring-signal, have install simple, cost is low, do not need high sensor, be convenient to the promotion and application that on-line monitoring is put in office.
The beneficial effect that the present invention reaches:
System combines the actual conditions of China's switch cabinet partial discharge monitoring, adopt induction type capacitive transducer, from switch cubicle, monitor signal is put in the potential indicator nuclear phase hole office of getting, degree is put in switch cubicle generation office to utilize pulse current method and Spectrum Method to judge, realize the on-line monitoring of switch cabinet partial discharge, make the acquisition of Partial discharge signal become simple, and surveying instrument is installed simply, cost is low, do not need high sensor, be convenient to office and put on-line monitoring popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of present system;
Fig. 2 is the structural representation of concentrated collection device in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring system, comprise A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer, the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase, concentrated collection device, cloud service Surveillance center; Described A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer are installed in switch cabinet outlet end, the output terminal of A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer is connected with the input end of the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase respectively, and the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase are arranged on the cabinet door-plate of switch cubicle; The nuclear phase hole of the charged display circuit of described A phase, the charged display circuit of B phase, the charged display circuit of C phase is connected with concentrated collection device input end respectively, and concentrated collection device is arranged on the cabinet door-plate of switch cubicle; Described concentrated collection device and cloud service Surveillance center are by wired or wireless mode transfer data information, described cloud service Surveillance center receives and puts data from concentrated collection general ability, to the data analysis received, storage, statistics, spectrum curve is put in the office of drawing, and forms all kinds of statistical report form.
As shown in Figure 2, above-mentioned concentrated collection device comprises A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit, memory circuit, power circuit, high speed microprocessor circuit, display circuit, warning circuit, keyboard circuit, clock circuit, communication interface circuit; Partial discharge signal in described A phase signals modulate circuit takes from A phase nuclear phase hole; Partial discharge signal in B phase signals modulate circuit takes from B phase nuclear phase hole; Partial discharge signal in C phase signals modulate circuit takes from C phase nuclear phase hole; The output terminal of described A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit is connected with the input end of high speed microprocessor circuit respectively; The output terminal of memory circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of display circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of warning circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of keyboard circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of clock circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of power circuit is connected with the power end of high speed microprocessor circuit; Communication interface circuit is connected with the communication port of high speed microprocessor circuit.
Above-mentioned display circuit comprises electrification indicating circuit and is arranged on A phase nuclear phase hole on charged display circuit, B phase nuclear phase hole, C phase nuclear phase hole, only three measurement terminal need be inserted corresponding nuclear phase hole during measurement inner, just can obtain office's discharge stream signal of tested phase, owing to being all provided with display circuit on switch cubicle, induction type capacitive transducer is as standard configuration device, do not need when monitoring is put in office like this induction type capacitive transducer is installed separately, from display circuit nuclear phase hole, directly obtain the Partial discharge signal of collection.
A kind of based on capacitance sensor type switch cabinet partial discharge on-line monitoring method, utilize above-mentioned system, step is as follows:
(1), high speed microprocessor circuit utilizes induction type capacitive transducer to process the office's information of putting collected, pulse current when generation is put in acquisition office and pulse current spectrogram;
(2), according to pulse current method and pulse current Spectrum Method comprehensive descision whether generation office to put and the degree of generation is put in office;
(3), when in switch cubicle, generation office in somewhere puts, continuous discharge phenomenon is produced to electronegative potential point, the sinusoidal current signal of standard is originally made to distort like this, form pulse current, and the current signal containing different frequency in electric current, by analysis spectrum figure frequency range, just indirectly can determine that the degree of generation is put in inside switch cabinet office.
This kind of method due to utilize high-tension switch cabinet to install alive circuit nuclear phase hole in directly acquisition office put measuring-signal, have install simple, cost is low, do not need high sensor, be convenient to the promotion and application that on-line monitoring is put in office.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.

Claims (4)

1. based on a capacitance sensor type switch cabinet partial discharge on-line monitoring system, it is characterized in that: comprise A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer, the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase, concentrated collection device, cloud service Surveillance center; Described A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer are installed in switch cabinet outlet end, the output terminal of A phase induction type capacitive transducer, B phase induction type capacitive transducer, C phase induction type capacitive transducer is connected with the input end of the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase respectively, and the charged display circuit of A phase, the charged display circuit of B phase, the charged display circuit of C phase are arranged on the cabinet door-plate of switch cubicle; The nuclear phase hole of the charged display circuit of described A phase, the charged display circuit of B phase, the charged display circuit of C phase is connected with concentrated collection device input end respectively, and concentrated collection device is arranged on the cabinet door-plate of switch cubicle; Described concentrated collection device and cloud service Surveillance center are by wired or wireless mode transfer data information, described cloud service Surveillance center receives and puts data from concentrated collection general ability, to the data analysis received, storage, statistics, spectrum curve is put in the office of drawing, and forms all kinds of statistical report form.
2. according to claim 1 based on capacitance sensor type switch cabinet partial discharge on-line monitoring system, it is characterized in that: described concentrated collection device comprises A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit, memory circuit, power circuit, high speed microprocessor circuit, display circuit, warning circuit, keyboard circuit, clock circuit, communication interface circuit; Partial discharge signal in described A phase signals modulate circuit takes from A phase nuclear phase hole; Partial discharge signal in B phase signals modulate circuit takes from B phase nuclear phase hole; Partial discharge signal in C phase signals modulate circuit takes from C phase nuclear phase hole; The output terminal of described A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit is connected with the input end of high speed microprocessor circuit respectively; The output terminal of memory circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of display circuit is connected with the I/O mouth of high speed microprocessor circuit; The input end of warning circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of keyboard circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of clock circuit is connected with the I/O mouth of high speed microprocessor circuit; The output terminal of power circuit is connected with the power end of high speed microprocessor circuit; Communication interface circuit is connected with the communication port of high speed microprocessor circuit.
3. according to claim 1 based on capacitance sensor type switch cabinet partial discharge on-line monitoring system, it is characterized in that: described display circuit comprises electrification indicating circuit and is arranged on the A phase nuclear phase hole on charged display circuit, B phase nuclear phase hole, C phase nuclear phase hole, only three measurement terminal need be inserted corresponding nuclear phase hole during measurement inner, just can obtain office's discharge stream signal of tested phase, owing to being all provided with display circuit on switch cubicle, induction type capacitive transducer is as standard configuration device, do not need when monitoring is put in office like this induction type capacitive transducer is installed separately, from display circuit nuclear phase hole, directly obtain the Partial discharge signal of collection.
4., based on a capacitance sensor type switch cabinet partial discharge on-line monitoring method, it is characterized in that the system utilized described in claim 1-3, step is as follows:
(1), high speed microprocessor circuit utilizes induction type capacitive transducer to process the office's information of putting collected, pulse current when generation is put in acquisition office and pulse current spectrogram;
(2), according to pulse current method and pulse current Spectrum Method comprehensive descision whether generation office to put and the degree of generation is put in office;
(3), when in switch cubicle, generation office in somewhere puts, continuous discharge phenomenon is produced to electronegative potential point, the sinusoidal current signal of standard is originally made to distort like this, form pulse current, and the current signal containing different frequency in electric current, by analysis spectrum figure frequency range, just indirectly can determine that the degree of generation is put in inside switch cabinet office.
CN201410837141.9A 2014-12-29 2014-12-29 Based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method Active CN104502821B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410837141.9A CN104502821B (en) 2014-12-29 2014-12-29 Based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410837141.9A CN104502821B (en) 2014-12-29 2014-12-29 Based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method

Publications (2)

Publication Number Publication Date
CN104502821A true CN104502821A (en) 2015-04-08
CN104502821B CN104502821B (en) 2018-03-20

Family

ID=52944232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410837141.9A Active CN104502821B (en) 2014-12-29 2014-12-29 Based on capacitance sensor type switch cabinet partial discharge on-line monitoring system and method

Country Status (1)

Country Link
CN (1) CN104502821B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105372059A (en) * 2015-12-15 2016-03-02 河海大学常州校区 High-voltage isolating switch mechanical characteristic on-line monitoring apparatus and monitoring method thereof
CN106814290A (en) * 2015-12-02 2017-06-09 中国电力科学研究院 A kind of 10kV switch cabinet states detection method
CN107271862A (en) * 2017-06-15 2017-10-20 国网河南省电力公司济源供电公司 A kind of high-tension switch cabinet partial discharge monitoring device
CN108427068A (en) * 2018-03-29 2018-08-21 云南电网有限责任公司电力科学研究院 A kind of partial discharge of switchgear detection device and method
CN108445360A (en) * 2018-03-29 2018-08-24 云南电网有限责任公司电力科学研究院 A kind of partial discharge of switchgear positioning device and method
CN109633395A (en) * 2019-01-24 2019-04-16 保定华创电气有限公司 A kind of measurement of local discharge signal and localization method
CN110161383A (en) * 2019-04-30 2019-08-23 云南电网有限责任公司电力科学研究院 A kind of detection device for partial discharge of switch cabinet
CN110456245A (en) * 2019-08-20 2019-11-15 武汉科瑞新电气自动化有限公司 A kind of switchgear PD Online monitoring system
CN110794264A (en) * 2019-10-14 2020-02-14 浙江浙能技术研究院有限公司 Generator partial discharge type identification method based on time domain pulse characteristics
CN110927537A (en) * 2019-11-27 2020-03-27 国网江苏省电力有限公司电力科学研究院 Partial discharge monitoring device and method based on Internet of things edge calculation
CN110927540A (en) * 2019-12-09 2020-03-27 国网上海市电力公司 C-GIS intelligent partial discharge monitoring device based on electrified display
CN112924826A (en) * 2021-01-29 2021-06-08 国网上海市电力公司 Ring main unit partial discharge on-line monitoring system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298107A (en) * 2011-05-20 2011-12-28 华南理工大学 Portable ultrasonic wave and cloud detection apparatus for partial discharge
CN102539897A (en) * 2012-02-28 2012-07-04 苏州苏海亚电气有限公司 High-voltage charged display with nuclear phase function
CN102749561A (en) * 2012-07-10 2012-10-24 广州安电测控技术有限公司 Cloud service-based partial discharge transient-stage earth electric wave cloud detection method and device
CN103163432A (en) * 2012-09-18 2013-06-19 天津学子电力设备科技有限公司 Switch cabinet partial discharge detecting device based on ultrasonic measuring method
US20130275063A1 (en) * 2012-04-13 2013-10-17 Lsis Co., Ltd. System for detecting partial discharge signal and method thereof
CN103913679A (en) * 2014-03-03 2014-07-09 国联思创(北京)科技有限公司 Online monitoring system for partial discharge of high-voltage switch cabinet
CN203773010U (en) * 2014-03-04 2014-08-13 国联思创(北京)科技有限公司 Partial discharge on-line monitoring instrument based on switch cabinet charge indicator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298107A (en) * 2011-05-20 2011-12-28 华南理工大学 Portable ultrasonic wave and cloud detection apparatus for partial discharge
CN102539897A (en) * 2012-02-28 2012-07-04 苏州苏海亚电气有限公司 High-voltage charged display with nuclear phase function
US20130275063A1 (en) * 2012-04-13 2013-10-17 Lsis Co., Ltd. System for detecting partial discharge signal and method thereof
CN102749561A (en) * 2012-07-10 2012-10-24 广州安电测控技术有限公司 Cloud service-based partial discharge transient-stage earth electric wave cloud detection method and device
CN103163432A (en) * 2012-09-18 2013-06-19 天津学子电力设备科技有限公司 Switch cabinet partial discharge detecting device based on ultrasonic measuring method
CN103913679A (en) * 2014-03-03 2014-07-09 国联思创(北京)科技有限公司 Online monitoring system for partial discharge of high-voltage switch cabinet
CN203773010U (en) * 2014-03-04 2014-08-13 国联思创(北京)科技有限公司 Partial discharge on-line monitoring instrument based on switch cabinet charge indicator

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106814290B (en) * 2015-12-02 2019-11-08 中国电力科学研究院 A kind of 10kV switch cabinet state detection method
CN106814290A (en) * 2015-12-02 2017-06-09 中国电力科学研究院 A kind of 10kV switch cabinet states detection method
CN105372059B (en) * 2015-12-15 2018-07-27 河海大学常州校区 High voltage isolator mechanical property on-Line Monitor Device and its monitoring method
CN105372059A (en) * 2015-12-15 2016-03-02 河海大学常州校区 High-voltage isolating switch mechanical characteristic on-line monitoring apparatus and monitoring method thereof
CN107271862A (en) * 2017-06-15 2017-10-20 国网河南省电力公司济源供电公司 A kind of high-tension switch cabinet partial discharge monitoring device
CN108427068A (en) * 2018-03-29 2018-08-21 云南电网有限责任公司电力科学研究院 A kind of partial discharge of switchgear detection device and method
CN108445360A (en) * 2018-03-29 2018-08-24 云南电网有限责任公司电力科学研究院 A kind of partial discharge of switchgear positioning device and method
CN109633395A (en) * 2019-01-24 2019-04-16 保定华创电气有限公司 A kind of measurement of local discharge signal and localization method
CN110161383A (en) * 2019-04-30 2019-08-23 云南电网有限责任公司电力科学研究院 A kind of detection device for partial discharge of switch cabinet
CN110161383B (en) * 2019-04-30 2020-07-28 云南电网有限责任公司电力科学研究院 Switch cabinet partial discharge detection device
CN110456245A (en) * 2019-08-20 2019-11-15 武汉科瑞新电气自动化有限公司 A kind of switchgear PD Online monitoring system
CN110794264A (en) * 2019-10-14 2020-02-14 浙江浙能技术研究院有限公司 Generator partial discharge type identification method based on time domain pulse characteristics
CN110794264B (en) * 2019-10-14 2021-11-19 浙江浙能技术研究院有限公司 Generator partial discharge type identification method based on time domain pulse characteristics
CN110927537A (en) * 2019-11-27 2020-03-27 国网江苏省电力有限公司电力科学研究院 Partial discharge monitoring device and method based on Internet of things edge calculation
CN110927537B (en) * 2019-11-27 2022-04-05 国网江苏省电力有限公司电力科学研究院 Partial discharge monitoring device and method based on Internet of things edge calculation
CN110927540A (en) * 2019-12-09 2020-03-27 国网上海市电力公司 C-GIS intelligent partial discharge monitoring device based on electrified display
CN112924826A (en) * 2021-01-29 2021-06-08 国网上海市电力公司 Ring main unit partial discharge on-line monitoring system

Also Published As

Publication number Publication date
CN104502821B (en) 2018-03-20

Similar Documents

Publication Publication Date Title
CN104502821A (en) Capacitive sensor based on-line switch cabinet partial discharge monitoring system and method
CN203773010U (en) Partial discharge on-line monitoring instrument based on switch cabinet charge indicator
CN104897985B (en) A kind of capacitance partial pressure power taking passive voltage remote monitoring system
CN206725710U (en) A kind of cable ac voltage withstanding and oscillation wave partial discharge test equipment
CN106526288A (en) Transmission line voltage and current monitoring system and method
CN103558525A (en) Method for detection of partial discharge of switch cabinet
CN103558523A (en) Detection device for partial discharge of switch cabinet
CN103558524A (en) Detection device for partial discharge of switch cabinet
CN104793132A (en) Disconnecting switch contact state detection device and method based on electric field sensor
CN103558526A (en) Method for detection of partial discharge of switch cabinet
CN103558532A (en) Partial discharge on-line detection system of high-voltage crosslinked polyethylene power cable
CN204375986U (en) Flexible ground equipment and system and corona current test probe thereof
CN110456245A (en) A kind of switchgear PD Online monitoring system
CN104965111A (en) Power transmission and distribution line voltage on-line measurement system based on pincerlike coaxial capacitor
CN202025054U (en) Portable creepage current electrified detecting system for support insulator
CN103487725B (en) A kind of overhead distribution earth fault indicating device based on zero-sequence component method
CN203551116U (en) Device for collecting temperature of high-voltage overhead transmission line
CN203630279U (en) Detection device for partial discharge of switch cabinet
CN203981829U (en) Local discharge detection device in a kind of high-tension switch cabinet
CN203037716U (en) Transformer and reactor entrance VFTO high-frequency signal test device for GIS transformer station
CN102305903A (en) Partial discharge detection method for pulse current of electrified operation single phase integrated gas insulated switchgear (GIS)
CN201662589U (en) Non-contact high-voltage electric field sensor
CN104215887A (en) Portable partial discharge detector
CN115032512B (en) GIS basin-type insulator on-line detection sensor
CN204359899U (en) GIS internal high voltage conductor Partial Discharge Detection arc sensor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220225

Address after: 213176 No. 22-1, Xinsheng Road, Xinchen village, Lijia Town, Wujin District, Changzhou City, Jiangsu Province

Patentee after: Changzhou ENSO Intelligent Technology Co.,Ltd.

Address before: 213022, No. 200, Jinling North Road, Xinbei District, Jiangsu, Changzhou

Patentee before: CHANGZHOU CAMPUS OF HOHAI University

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 213176 No. 22-1, Xinsheng Road, Xinchen village, Lijia Town, Wujin District, Changzhou City, Jiangsu Province

Patentee after: Jiangsu focus power equipment Co.,Ltd.

Address before: 213176 No. 22-1, Xinsheng Road, Xinchen village, Lijia Town, Wujin District, Changzhou City, Jiangsu Province

Patentee before: Changzhou ENSO Intelligent Technology Co.,Ltd.