CN206074750U - A kind of Power Transformer Faults detecting system - Google Patents
A kind of Power Transformer Faults detecting system Download PDFInfo
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- CN206074750U CN206074750U CN201621099269.0U CN201621099269U CN206074750U CN 206074750 U CN206074750 U CN 206074750U CN 201621099269 U CN201621099269 U CN 201621099269U CN 206074750 U CN206074750 U CN 206074750U
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- power transformer
- current sensor
- data collecting
- collecting card
- induced signal
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Abstract
This utility model is related to a kind of Power Transformer Faults detecting system, including multiple ultrasonic sensors, iron core, current sensor and data collecting card；Multiple ultrasonic sensors are placed on the tank wall of power transformer, and multiple ultrasonic sensors pass through connection with the data collecting card；One end of the iron core is connected with the upper surface of the power transformer, other end ground connection；The current sensor is placed on the iron core, and the current sensor passes through connection with the data collecting card.Hinge structure, this utility model can shift to an earlier date discovering device leak current fault, understand state of insulation, position defective locations, are easy to fix a breakdown rapidly, it is to avoid the generation of serious accident, reduce and have a power failure brought loss and reduce maintenance cost.
Description
Technical field
This utility model is related to technical field of electric power, more particularly to a kind of Power Transformer Faults detecting system.
Background technology
The raising of voltage class of electric power system makes the Insulation Problems of electrical equipment seem more and more prominent, operating large-scale
Electrical equipment such as transformator, once break down to cause the power failure in locally even full area, gives national economy other departments
Production and running cause serious adverse consequencess.As transformer fault is related to that face is wider, the dividing mode of particular type compared with
It is many, such as mainly there are fault, magnetic-circuit fault and oil path failure from loop division.If dividing from the agent structure of transformator, can
It is divided into winding failure, iron core failure, oily failure and adnexa failure.It is usually traditionally simultaneously root to the type of transformer fault
Position division, such as insulation fault, iron core failure, shunting switch failure etc. are sent out easily according to common failure.And to this figure of transformator
Ring most serious is cutting-out of voltage changer failure, while also there is Leakage in Transformer failure, oil flow electrification failure, false protection
Failure etc..All these different types of failures, some possibility reflections are hot stalls, and some possibility reflections are electric events
Barrier, some possibility not only reflected overheating fault simultaneously but also there is discharge fault, and Leakage in Transformer failure possibility in general
There is no the feature of heat or electric fault.Prior art can not detect Leakage in Transformer failure.
Utility model content
The purpose of this utility model is to provide a kind of Power Transformer Faults detecting system, technical problem to be solved
It is：How to shift to an earlier date discovering device leak current fault, understand state of insulation, position defective locations.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of Power Transformer Faults detecting system,
Including multiple ultrasonic sensors, iron core, current sensor and data collecting card；Multiple ultrasonic sensors are placed in electric power
On the tank wall of transformator, multiple ultrasonic sensors pass through connection with the data collecting card, to power transformer
Shelf depreciation in device sends ultrasound wave, and ultrasonic sensing is carried out to the shelf depreciation in power transformer, generates first and senses
Signal transmission is to data collecting card；One end of the iron core is connected with the upper surface of the power transformer, other end ground connection；Institute
State current sensor to be placed on the iron core, the current sensor is with the data collecting card by connection, the electricity
Earth current on flow sensor detection iron core, generates the second induced signal and transmits to data collecting card；The data collecting card
The first induced signal and the second induced signal are collected, the first induced signal and the second induced signal machine are carried out passing after analog digital conversion
Transport to external process devices.
The beneficial effects of the utility model are：Multiple ultrasonic sensors carry out ultrasound to shelf depreciation in power transformer
Ripple senses, and electric discharge occurs when current sensor detects power transformer, then by the induced signal of multiple ultrasonic sensors
Recognize the order of severity and discharge position of power transformer interior insulation defect, understand failure cause and abort situation in time, it is right
Directive function is played in the maintenance and maintenance of follow-up phase, is reduced unnecessary manpower, physical resource and is wasted, improves equipment utilization
Rate, promotes electric power science and technology further progressive to automatization, intelligent aspect.
On the basis of above-mentioned technical proposal, this utility model can also do following improvement.
Further, multiple ultrasonic sensors are placed in array in the power transformer.
Using the beneficial effect of above-mentioned further scheme it is：It is easy to carry out ultrasound to the structure of each position in power transformer
Ripple senses, and determines abort situation in time.
Further, also including broadband amplifiers, the current sensor be wideband current sensor, the current sensor
It is connected with the data collecting card by broadband amplifiers, the broadband amplifiers carries out signal amplification to the second induced signal.
Using the beneficial effect of above-mentioned further scheme it is：Signal amplification is carried out to the second induced signal, it is follow-up right to be easy to
Second induced signal carries out signal processing.
Further, coil is provided with the current sensor, on the iron core, the coil leads to the mounting coil
Crossing magnetic misfortune conjunction mode carries out electric current sensing.
Using the beneficial effect of above-mentioned further scheme it is：Sensor is based on coil principle, is worked using magnetic misfortune conjunction mode,
Can be prevented effectively to produce with the high tension loop in power transformer and contact, the accuracy of promotion signal detection is highly suitable for existing
Field detection.
Further, be provided with A/D converter in the data collecting card, the A/D converter to the first induced signal and
Second induced signal carries out analog digital conversion.
Using the beneficial effect of above-mentioned further scheme it is：A/D converter can be by the first induced signal and the second sensing letter
Number analog digital conversion is carried out, be easy to subsequently process the first induced signal and the second induced signal, understand power transformer in time
Failure cause and abort situation in device.
Description of the drawings
Fig. 1 is a kind of structural representation of Power Transformer Faults detecting system of this utility model.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, ultrasonic sensor, 2, iron core, 3, current sensor, 4, data collecting card, 5, power transformer, 6, wideband puts
Big device.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figure 1, a kind of Power Transformer Faults detecting system, including multiple ultrasonic sensors 1, iron core 2, electric current
Sensor 3 and data collecting card 4；Multiple ultrasonic sensors 1 are placed on the tank wall of power transformer 5, multiple described super
Sonic sensor 1 sends ultrasound to the shelf depreciation in power transformer 5 with the data collecting card 4 by connection
Ripple, carries out ultrasonic sensing to the shelf depreciation in power transformer 5, generates the first induced signal and transmits to data collecting card 4；
One end of the iron core 2 is connected with the upper surface of the power transformer 5, other end ground connection；The current sensor 3 is placed in institute
State on iron core 2, the current sensor 3 is with the data collecting card 4 by connection, the detection ferrum of the current sensor 3
Earth current on core 2, generates the second induced signal and transmits to data collecting card 4；The data collecting card 4 is collected first and is sensed
Signal and the second induced signal, transmit to external treatment after the first induced signal and the second induced signal machine are carried out analog digital conversion
Device.
Multiple ultrasonic sensors 1 carry out ultrasonic sensing to shelf depreciation in power transformer 5, when current sensor 3
Detect power transformer 5 and electric discharge occur, then power transformer 5 is recognized by the induced signal of multiple ultrasonic sensors 1
The order of severity and discharge position of interior insulation defect, understands in time failure cause and abort situation, maintenance to follow-up phase and
Directive function is played in maintenance, is reduced unnecessary manpower, physical resource and is wasted, improves utilization rate of equipment and installations, promotes electric power science and technology
It is further progressive to automatization, intelligent aspect.
In above-described embodiment, multiple ultrasonic sensors 1 are placed in array in the power transformer 5；It is easy to
Ultrasonic sensing is carried out to the structure of in power transformer 5 position, abort situation is determined in time.
In above-described embodiment, also including broadband amplifiers 6, the current sensor 3 is wideband current sensor 3, described
Current sensor 3 is connected with the data collecting card 4 by broadband amplifiers 6,6 pairs of the second induced signals of the broadband amplifiers
Carry out signal amplification；Signal amplification is carried out to the second induced signal, is easy to subsequently signal processing be carried out to the second induced signal.
In above-described embodiment, on the current sensor 3, be provided with coil, the mounting coil on the iron core, institute
Stating coil carries out electric current sensing by magnetic misfortune conjunction mode；Current sensor 3 is based on coil principle, is worked using magnetic misfortune conjunction mode,
Can be prevented effectively to produce with the high tension loop in power transformer 5 and contact, the accuracy of promotion signal detection is highly suitable for existing
Field detection.
In above-described embodiment, A/D converter in the data collecting card 4, is provided with, the A/D converter is sensed to first
Signal and the second induced signal carry out analog digital conversion；First induced signal and the second induced signal can be carried out mould by A/D converter
Number conversion, is easy to subsequently process the first induced signal and the second induced signal, understands the event in power transformer 5 in time
Barrier reason and abort situation.
Transformer partial discharge signal, winding failure signal are carried out highly sensitive to adopt in real time by high-performance sensor array
Collection；Suppress to disturb using wavelet filtering technology, characteristic information extraction sets up knowledge base；Using comprehensive based on Taylor-heredity
The time difference position technolot of hop algorithm is determining shelf depreciation source point；Using requiring to report his or her problems within a prescribed time and in a prescribed place, method of identification is realized to all kinds of winding failures of transformator
Identifying and diagnosing.
The technical program can make the side of the operational monitoring of transformator local and fault location after each power department popularization and application
Method and means are more various, reliable, further avoid or reduce the generation of power outage, improve the reliability of power system power supply
Property, the technical program, one is can to put monitoring modular by office to carry out partial discharge of transformer phenomenon continuous effective and accurately
On-line monitoring, can determine whether the order of severity, the discharge position of insulation defect；Two is can to pass through winding failure diagnostic module to transformator
Fault type carries out Accurate Diagnosis.With this, directive function is played in the maintenance and maintenance to follow-up phase, reduces unnecessary people
Power, physical resource are wasted, and improve utilization rate of equipment and installations, promote electric power science and technology further progressive to automatization, intelligent aspect, and
Progressively replace existing periodical power failure preventative maintenance system.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (5)
1. a kind of Power Transformer Faults detecting system, it is characterised in that：Including multiple ultrasonic sensors (1), iron core (2),
Current sensor (3) and data collecting card (4)；Multiple ultrasonic sensors (1) are placed in the tank wall of power transformer (5)
On, multiple ultrasonic sensors (1) with the data collecting card (4) by connection, in power transformer (5)
Shelf depreciation send ultrasound wave, carry out ultrasonic sensing to the shelf depreciation in power transformer (5), generate the first sensing letter
Number transmit to data collecting card (4)；One end of the iron core (2) is connected with the upper surface of the power transformer (5), the other end
Ground connection；The current sensor (3) is placed on the iron core (2), the current sensor (3) and the data collecting card (4)
By connection, the earth current on the current sensor (3) detection iron core (2), generate the second induced signal transmit to
Data collecting card (4)；The data collecting card (4) collects the first induced signal and the second induced signal, by the first induced signal
Transmit to external process devices after analog digital conversion is carried out with the second induced signal machine.
2. a kind of Power Transformer Faults detecting system according to claim 1, it is characterised in that：Multiple ultrasound wave are passed
Sensor (1) is placed in array in the power transformer (5).
3. a kind of Power Transformer Faults detecting system according to claim 1, it is characterised in that：Also include broadband amplifiers
(6), the current sensor (3) is wideband current sensor (3), the current sensor (3) by broadband amplifiers (6) with
Data collecting card (4) connection, the broadband amplifiers (6) carry out signal amplification to the second induced signal.
4. a kind of Power Transformer Faults detecting system according to claim 1, it is characterised in that：The current sensor
(3) coil is provided with, on the iron core, the coil brings disaster upon conjunction mode by magnetic carries out electric current sensing to the mounting coil.
5. a kind of Power Transformer Faults detecting system according to any one of Claims 1-4, it is characterised in that：The number
According to A/D converter is provided with capture card (4), the A/D converter carries out mould to the first induced signal and the second induced signal
Number conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099269.0U CN206074750U (en) | 2016-09-30 | 2016-09-30 | A kind of Power Transformer Faults detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099269.0U CN206074750U (en) | 2016-09-30 | 2016-09-30 | A kind of Power Transformer Faults detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN206074750U true CN206074750U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621099269.0U Expired - Fee Related CN206074750U (en) | 2016-09-30 | 2016-09-30 | A kind of Power Transformer Faults detecting system |
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| CN (1) | CN206074750U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550270A (en) * | 2018-03-20 | 2018-09-18 | 青岛海信网络科技股份有限公司 | A kind of processing of traffic lights abnormality and retransmission method and traffic lights |
| CN109375013A (en) * | 2018-10-19 | 2019-02-22 | 江苏盛久变压器有限公司 | A kind of test macro of transformer |
| CN111220104A (en) * | 2019-11-25 | 2020-06-02 | 国网吉林省电力有限公司电力科学研究院 | Time-division multiplexing-based multi-path ultrasonic array transformer winding deformation detection method |
-
2016
- 2016-09-30 CN CN201621099269.0U patent/CN206074750U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550270A (en) * | 2018-03-20 | 2018-09-18 | 青岛海信网络科技股份有限公司 | A kind of processing of traffic lights abnormality and retransmission method and traffic lights |
| CN109375013A (en) * | 2018-10-19 | 2019-02-22 | 江苏盛久变压器有限公司 | A kind of test macro of transformer |
| CN111220104A (en) * | 2019-11-25 | 2020-06-02 | 国网吉林省电力有限公司电力科学研究院 | Time-division multiplexing-based multi-path ultrasonic array transformer winding deformation detection method |
| CN111220104B (en) * | 2019-11-25 | 2022-03-15 | 国网吉林省电力有限公司电力科学研究院 | Time-division multiplexing-based multi-path ultrasonic array transformer winding deformation detection method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20190930 |