CN106197737B - Generator insulation over-temperature on-Line Monitor Device - Google Patents
Generator insulation over-temperature on-Line Monitor Device Download PDFInfo
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- CN106197737B CN106197737B CN201510223425.3A CN201510223425A CN106197737B CN 106197737 B CN106197737 B CN 106197737B CN 201510223425 A CN201510223425 A CN 201510223425A CN 106197737 B CN106197737 B CN 106197737B
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Abstract
Generator insulation over-temperature on-Line Monitor Device technical field: this detection device is applied to large and medium-sized synchronous generator insulation overheat on-Line Monitor Device, and the acquisitions of monitoring data, analysis, is all completed by computer processing.It fast can accurately judge generator insulation over-temperature situation.
Description
Fields: this detection device is applied to large and medium-sized synchronous generator insulation overheat on-Line Monitor Device, monitors number
According to acquisition, processing, analysis, all completed by computer.It fast can accurately judge generator insulation over-temperature situation.
Background technique: generator insulation over-temperature device is a kind of on-line monitoring generator stator and rotor winding and core insulation
The monitoring instrument of hot-spot.Currently, the U.S., Britain, having been developed that different types of monitor.China, which now removes, is introducing the U.S.
Outside the monitor produced on 300MW, 600MW steam turbine generator of Westinghouse Electric's manufacture equipped with the U.S., voluntarily monitoring device has been developed
There are nearly thousand to be matched on 300MW, 600MW generating set.By the operation of decades, generator insulation over-temperature on-line monitoring dress
It sets and revolutionary transformation did not occurred.Based on the shortcomings and deficiencies of traditional approach monitoring device, my company has developed a kind of novel
Generator insulation over-temperature on-Line Monitor Device.
Summary of the invention: the purpose of the present apparatus is to provide a kind of novel electricity generator insulation overheat on-Line Monitor Device.
Generator insulation over-temperature on-Line Monitor Device complete unit includes: a cabinet body A, nucleus of condensation photosensitive sensors A1,
Signal conditioning unit A2, signal acquisition unit A3, signal are shown and alarm unit A4, the central processing unit A5 of industrial personal computer, industry
Indicator screen A6.It is characterized in that nucleus of condensation photosensitive sensors A1 is mounted on generator-temperature detection signal terminal plate, pass through hair
Motor temperature signal terminal plate extraction voltage signal, voltage signal pass through signal conditioning unit A2, signal acquisition unit A3, signal
Display and alarm unit A4 are sent into the central processing unit A5 of industrial personal computer, are shown from industrial display screen A6.
Design principle: present apparatus design principle changes the design philosophy of traditional monitoring device.By being mounted on generator
Vapour, the temperature signal sealed wiring intralamellar part for encouraging both ends nucleus of condensation photosensitive sensors monitor generator insulation over-temperature situation.
The nucleus of condensation photosensitive sensors of generator-temperature detection signal sealed wiring intralamellar part are completely disposed at the cooling gas ring under certain pressure
In border, when generator operation, when certain insulating element has insulation overheat, after the insulating materials thermal decomposition of overheat, it can generate to the cold
Nucleus of condensation, nucleus of condensation are flowed with air-flow, and when nucleus of condensation is flow within the scope of nucleus of condensation photosensitive sensors light sensation, sensor can basis
The concentration of nucleus of condensation issues the output of 0-10V (or 4-20mA) to judge generator insulation over-temperature situation.Output voltage (or electricity
Stream) size it is related with generator insulation over-temperature degree, when voltage (or electric current) is raised to a certain setting valve, represent insulation morning
The generation and presence of phase potential faults, device issue alarm signal.Operations staff can be according to the frequency of alarm signal, in conjunction with other
Display instrument instruction, the occurrence and development of comprehensive descision potential faults are planned to take corresponding establishment ahead of time, avoid because of insulation
The expansion of overheating fault and the major accident for leading to deuterogenesis, so as to improve the safe operation of generator.Novel electricity generator is exhausted
Edge overheats monitoring device electrical principle block diagram as shown in figure, novel electricity generator insulation overheat monitoring device alarm procedure process
As shown in Figure 2, novel electricity generator insulation overheat monitoring device condenses nuclear concentration and output voltage characteristic curve such as three institute of figure to figure
Show, novel electricity generator insulation overheat monitoring device appearance schematic diagram is as shown in Figure IV.
The advantages of present apparatus and feature:
(1) nucleus of condensation photosensitive sensors are completely disposed in cooling gas environment, are not necessarily to external sampling pipe and analysis room, no
It must worry grease, droplet blocking pipeline；It reduces generating set and seals leak source, there is no generating sets to leak hydrogen hidden danger.
(2) device monitoring principle is by the size of voltage (or electric current), the size of reaction condensation nuclear concentration, and nucleus of condensation is dense
The size of degree is only related with insulation overheat situation weight, unrelated with cooling gas pressure size in generating set, will not influence dress
Normal monitoring is set, the possibility reported by mistake.
(3) device is applicable in different units, the generating set of the different types of cooling.
(4) device application software is developed under ' WINDOWS ' environment, has good man-machine interface.
(5) has breakdown judge, damage curve is shown, insulation overheat trend analysis and store function.
(6) have on the spot, teletransmission warning function.
(7) whether user can recall generator insulating history run data at any time, can need repairing and mention for generator insulating
For according to effectively prevent the generation for leading to accident by insulation overheat.
(8) it debugs simple, easy to maintain, safe and reliable.
Detailed description of the invention
Fig. 1 is the electrical principle block diagram of the present apparatus.
Fig. 2 is the alarm procedure flow chart of the present apparatus.
Fig. 3 is condensation nuclear concentration and output voltage characteristic curve graph.
Fig. 4 is the appearance schematic diagram of the present apparatus.Wherein " 1 " is police instruction unit；" 2 " are display；" 3 " are to calculate
Machine；" 4 " are mouse-keyboard drawer；" 5 " are document drawer；" 6 " are printer drawer；" 7 " are device nameplate；" 8 " are device mark
Board.
Specific embodiment
As shown in figure 4, generator insulation over-temperature on-Line Monitor Device complete unit includes: a cabinet body A, nucleus of condensation light sensation
Sensors A 1, signal conditioning unit A2, signal acquisition unit A3, signal are shown and alarm unit A4, the central processing of industrial personal computer
Device A5, industrial display screen A6.It is characterized in that nucleus of condensation photosensitive sensors A1 is mounted on generator-temperature detection signal terminal plate
On, by generator-temperature detection signal terminal plate extraction voltage signal, voltage signal passes through signal conditioning unit A2, signal acquisition list
First A3, signal are shown and alarm unit A4 is sent into the central processing unit A5 of industrial personal computer, are shown from industrial display screen A6
Come.When generator operation, when certain insulating element has insulation overheat, after the insulating materials thermal decomposition of overheat, can generate to the cold cold
Solidifying core, nucleus of condensation are flowed with air-flow, and when nucleus of condensation is flow within the scope of A1 light sensation, A1 can issue 0- according to the concentration of nucleus of condensation
The output of 10V (or 4-20mA) transmits the signal into A2, after A2 is improved and is collected the center that industrial personal computer is sent into unit A3 processing
In processor A5.Reaction is condensed the voltage signal system of nuclear concentration by special Programming with Pascal Language by the central processing unit A5 of industrial personal computer
At condensation nuclear concentration and output voltage characteristic curve, shown by A6.A5 analyze output voltage (or electric current) size with
Generator insulation over-temperature degree is related, when voltage (or electric current) is raised to a certain setting valve, represents insulation initial failure hidden danger
Generation and presence, device issue alarm signal.Operations staff can refer to according to the frequency of alarm signal in conjunction with other display instruments
Show, the occurrence and development of comprehensive descision potential faults, it is planned to take corresponding establishment ahead of time, it avoids because of insulation overheat failure
Expand and cause the major accident of deuterogenesis, so as to improve the safe operation of generator.
A1 be using the homemade nucleus of condensation photosensitive sensors of my company, input voltage 24VDC, output signal 0-10VDC (or
4-20mA).By the potential of A1 light sensation, it is sent into signal acquisition unit A2.A2 is by Harbin Ya Yuan limited power responsibility public affairs
Take charge of the signal conditioning unit of the isolating amplifier circuit module composition of independent research.Pass through the transformed induction of A2 isolating amplifier circuit
Potential is sent into signal acquisition unit A3.A3 is by Harbin Ya Yuan Electric Power Co., Ltd independent research high-frequency high-speed modulus
Conversion module composition signal acquisition unit.The data feeding signal acquired by A3 is shown and alarm unit A4.A4 be by
The signal of connecting terminal block, the compositions such as miniature circuit breaker, Switching Power Supply and alarm lamp is shown and alarm unit.It will by A4
Alarm signal is sent into the central processing unit A5 of industrial personal computer.A5 is industrial high-frequency high-speed computer.The letter sent by A4
Number by processing, shown by industrial display A6 screen.A is by A1 nucleus of condensation photosensitive sensors；A2 signal condition list
Member；A3 signal acquisition unit；A4 signal is shown and alarm unit；The central processing unit of A5 industrial personal computer；A6 industrial display composition
" generator insulation over-temperature on-Line Monitor Device ".
Claims (1)
1. a kind of generator insulation over-temperature on-Line Monitor Device complete unit, comprising: a cabinet body A, nucleus of condensation photosensitive sensors
A1, signal conditioning unit A2, signal acquisition unit A3, signal is shown and alarm unit A4, the central processing unit A5 of industrial personal computer, work
Industry indicator screen A6；It is characterized in that nucleus of condensation photosensitive sensors A1 is mounted on generator-temperature detection signal terminal plate, pass through
Generator-temperature detection signal terminal plate extraction voltage signal, voltage signal pass through signal conditioning unit A2, signal acquisition unit A3, letter
Number display and alarm unit A4 be sent into industrial personal computer central processing unit A5 in, shown from industrial display screen A6；Work as hair
When motor operation, when certain insulating element has insulation overheat, after the insulating materials thermal decomposition of overheat, nucleus of condensation can be generated to the cold, it is cold
Solidifying core is flowed with air-flow, when nucleus of condensation is flow within the scope of nucleus of condensation photosensitive sensors A1 light sensation, nucleus of condensation photosensitive sensors A1
It can be transmitted according to the output that the concentration of nucleus of condensation issues 0-10V or 4-20mA into signal conditioning unit A2, through signal conditioning unit
Signal after A2 conditioning is collected unit A3 processing and is sent into the central processing unit A5 of industrial personal computer；The central processing unit A5 of industrial personal computer
Condensation nuclear concentration and output voltage characteristic curve is made in the voltage signal of reaction condensation nuclear concentration by Programming with Pascal Language, passes through work
Industry indicator screen A6 is shown；The central processing unit A5 analysis output voltage of industrial personal computer or the size and generator of electric current are exhausted
Edge degree of superheat is related, when voltage or electric current are raised to a certain setting valve, represent the generation of insulation initial failure hidden danger and deposits
In device sending alarm signal；Operations staff can indicate, synthesis is sentenced according to the frequency of alarm signal in conjunction with other display instruments
The occurrence and development of disconnected potential faults.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510223425.3A CN106197737B (en) | 2015-05-05 | 2015-05-05 | Generator insulation over-temperature on-Line Monitor Device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510223425.3A CN106197737B (en) | 2015-05-05 | 2015-05-05 | Generator insulation over-temperature on-Line Monitor Device |
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| Publication Number | Publication Date |
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| CN106197737A CN106197737A (en) | 2016-12-07 |
| CN106197737B true CN106197737B (en) | 2019-11-12 |
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| CN201510223425.3A Active CN106197737B (en) | 2015-05-05 | 2015-05-05 | Generator insulation over-temperature on-Line Monitor Device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110411929B (en) * | 2019-08-27 | 2024-02-06 | 广州昊致电气自动化有限公司 | Generator insulation overheat monitoring device and detection method based on laser scattering principle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201526A (en) * | 1995-11-02 | 1998-12-09 | 埃林能源供给股份有限公司 | Process for evaluating thermal and medium load of electric motor and electric system |
| CN201673236U (en) * | 2010-06-11 | 2010-12-15 | 哈尔滨亚源电力有限责任公司 | Insulation live testing device for generator bearing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201637831U (en) * | 2010-04-26 | 2010-11-17 | 哈尔滨国力电气有限公司 | State monitoring and malfunction diagnosing system for large generator |
| US8974180B2 (en) * | 2011-11-17 | 2015-03-10 | General Electric Company | System and method for estimating operating temperature of turbo machinery |
| CN102706474B (en) * | 2012-06-06 | 2014-01-08 | 常州大学 | X-ray imaging equipment for measuring internal temperature of objects and measuring method thereof |
-
2015
- 2015-05-05 CN CN201510223425.3A patent/CN106197737B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201526A (en) * | 1995-11-02 | 1998-12-09 | 埃林能源供给股份有限公司 | Process for evaluating thermal and medium load of electric motor and electric system |
| CN201673236U (en) * | 2010-06-11 | 2010-12-15 | 哈尔滨亚源电力有限责任公司 | Insulation live testing device for generator bearing |
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| CN106197737A (en) | 2016-12-07 |
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