CN109256753A - Infrared temperature-sensitive protection on-line calibration device and calibration method in a kind of power high voltage cabinet - Google Patents
Infrared temperature-sensitive protection on-line calibration device and calibration method in a kind of power high voltage cabinet Download PDFInfo
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- CN109256753A CN109256753A CN201811141773.6A CN201811141773A CN109256753A CN 109256753 A CN109256753 A CN 109256753A CN 201811141773 A CN201811141773 A CN 201811141773A CN 109256753 A CN109256753 A CN 109256753A
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- high voltage
- power high
- voltage cabinet
- infrared
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 76
- 238000013021 overheating Methods 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000000505 pernicious effect Effects 0.000 claims abstract description 20
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 37
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 28
- 239000003550 marker Substances 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 8
- 238000009529 body temperature measurement Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000010606 normalization Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention relates to a kind of temperature-sensitive infrared in power high voltage cabinet protection on-line calibration device and calibration methods, it is characterised in that: protects system to mark device, power high voltage cabinet including power high voltage cabinet, temperature conversion device, control module, temperature；Thermometric is carried out to the high-tension apparatus in cabinet by the miniature infrared temperature probe in power high voltage cabinet to scan; and it is transmitted to temperature conversion device; the fault value pre-set in control module and control module is transmitted to after converting to be compared; alarm is issued if reaching overheat alarm slight, if moderate overheating fault value in power high voltage cabinet protection system; if reaching control module control circuit breaker trip coil motion when happening suddenly pernicious overheating fault trip value, and then control switch trips.The present invention can guarantee safety, in time, effectively protect to power high voltage cabinet when overheating fault occurs in the case where non-contact temperature-sensitive.
Description
Technical field
The present invention relates to power high voltage temperature test field, infrared temperature-sensitive protection is online in especially a kind of power high voltage cabinet
Calibrating installation and calibration method.
Background technique
High-tension apparatus in power high voltage cabinet can generate heat in operation due to electromagnetic action, its fever temperature in normal operation
Degree is within the scope of normal temperature value, all can be when being in contact the failures such as bad, overload, dampness or equipment self-defect
Its fault point generates the hot spot for being higher than normal operating temperature range, and with fault progression degree, hot(test)-spot temperature is higher, at this time
If do not alarmed, even if slight overheating fault is likely to develop quickly as catastrophe failure.When encountering such as serious overload in short-term, short
When the pernicious failure of burst of road, serious lost territory or overvoltage impact etc., hot(test)-spot temperature will sharply be increased in short-term, at this time
As circuit breaker trip is cut off the power not in time, will be enlarged by accident, even result in high-voltage board explosion damage, seriously jeopardize the person and
The serious accident of power grid security, it is compact in cabinet that various High-Voltage Electrical Appliances are installed since high-voltage board is armouring closing cabinet body, normally
Forbid out cabinet door in operation, cabinet door can not be opened with conventional temp measuring method and carry out thermometric.Conventional electric power high-voltage board overheating protection
Method forbids opening cabinet door to be tested and observed in operation, since high-tension apparatus has high voltage in high-voltage board, commonly
Temperature probe cannot directly contact the temperature-sensitive position of electrification, and it is high the measurement of infrared measurement of temperature instrument can only to be carried by staff in operation
Pressure cabinet case body is compared with other cabinet body skin temperatures, to carry out judging whether there is heating accident；Or power failure is taken,
Cabinet door is opened by measurement contact D.C. resistance to determine whether there is overheating fault.Former approach seriously lags, Ke Nengcong
The heat that failure heat generating spot distributes early all is burnt by air transmitted to cabinet wall device；Second method needs to have a power failure, Wu Fa
It charges and carries out in operation, the existing tradition of both the above all not can guarantee safety, in time, effectively power high voltage cabinet was occurring
It is protected when thermal fault.
Summary of the invention
In view of this, the purpose of the present invention is to propose to temperature-sensitive infrared in a kind of power high voltage cabinet protection on-line calibration device and
Calibration method can guarantee safety, in time, effectively overheat to power high voltage cabinet in the case where non-contact temperature-sensitive
It is protected when failure.
The present invention is realized using following scheme: infrared temperature-sensitive protection on-line calibration device and calibration in a kind of power high voltage cabinet
Method, including power high voltage cabinet, temperature protect system to mark device, power high voltage cabinet；It is disconnected including handcart in the power high voltage cabinet
Road device, bus bar, disconnecting switch, high-voltage connection, mutual inductor, grounding switch, arrester, outlet cable；
The following steps are included:
Step S1: miniature infrared temperature probe, probe diverter are set in power high voltage cabinet；On the cabinet wall of power high voltage cabinet
Temperature is provided with to mark device comprising silver alloy plate (or material of other excellent thermal conductivities) and standard temperature probe；
Step S2: a power high voltage cabinet is provided and protects system, the power high voltage cabinet protection system includes overheat alarm, open circuit
Device and circuit breaker trip coil；
Step S3: a control system is provided, the control system includes temperature conversion device and control module；
Step S4: miniature infrared temperature probe sets power high voltage in power high voltage cabinet by diverter of popping one's head in power high voltage cabinet
It is standby to carry out thermometric scanning, and infrared measurement of temperature data by optical fiber or are wirelessly transmitted to temperature conversion device；
Step S5: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
When value reaches slight overheating fault value, the overheat alarm in power high voltage cabinet protection system issues slight overheating fault alarm signal
Number, remind staff to check, monitoring；
Step S6: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
When value reaches moderate overheating fault value, the overheat alarm in power high voltage cabinet protection system issues moderate overheating fault alarm signal
Number, remind staff to take measures to check and overhaul as early as possible；
Step S7: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
Value reaches the pernicious overheating fault trip value of burst of setting, then miniature infrared temperature probe is immediately controlled and turns to temperature to mark device
Silver alloy plate inner wall carries out thermometric, and the survey with temperature to the real-time temperature on the standard temperature probe measurement silver alloy plate of mark device
Warm data are compared, if the error of comparing result is less than setting value, control module controls power high voltage cabinet protection system
Circuit breaker trip coil motion, control switch tripping, otherwise, does not execute trip operation order.
Further, the silver alloy plate is directly welded at power high voltage cabinet and specifies on position of opening, and and power high voltage
Cabinet forms one, and the specified position of opening of the power high voltage cabinet can easily turn to alignment by infrared temperature probe miniature in cabinet
Depending on, standard temperature probe fits together with silver alloy plate.
Preferably, the present invention also provides a kind of devices based on the above method, including change including power high voltage cabinet, temperature
It calculates device, control module, temperature and system is protected to mark device, power high voltage cabinet；
It is equipped with miniature infrared temperature probe in the power high voltage cabinet, probe diverter, handcart circuit breaker, bus bar, keeps apart
Pass, high-voltage connection, mutual inductor, grounding switch, arrester, outlet cable；
The temperature is located on power high voltage cabinet cabinet wall mark device comprising silver alloy plate (or the material of other excellent thermal conductivities
Material) and standard temperature probe, the silver alloy plate is directly welded at power high voltage cabinet and specifies on position of opening, and and power high voltage
Cabinet forms one, and the standard temperature probe fits together with the silver alloy plate；Standard temperature probe passes through optical fiber or nothing
Line is transmitted the temperature conversion device of the real-time temperature on-line normalization on silver alloy plate to backstage, will be infrared in cabinet when needing to mark
Temperature probe turns to alignment silver alloy plate inner wall, and stops, at this time by the infrared measurement of temperature data in cabinet and the standard thermometric outside cabinet
Within the allowable range whether probe temperature measurement data is compared, see its error.
The power high voltage cabinet protection system includes overheat alarm, breaker and circuit breaker trip coil；
The input terminal of the temperature conversion device is surveyed with the output end of miniature infrared temperature probe in power high voltage cabinet and standard respectively
The output end of temperature probe is electrical connected, the temperature data sent to receive miniature infrared temperature probe and standard temperature probe,
The output end of the temperature conversion device and the input terminal of control module are electrical connected, and visit to the miniature infrared measurement of temperature after converting
The temperature data of head and standard temperature probe is sent to control module, the output end of the control module respectively with power high voltage cabinet
The input terminal of overheat alarm in protection system and the input terminal of circuit breaker trip coil are electrical connected, to control when infrared
Control circuit breaker trip coil is dynamic when thermometric value reaches slight, moderate overheating fault value or burst pernicious overheating fault trip value
Make, and then control switch trips, the output end of the circuit breaker trip coil and the input terminal of breaker are electrical connected, to control
The moving contact of breaker tripping of power high voltage cabinet protection system processed.
Particularly, miniature infrared temperature probe is mounted on probe diverter, is formed one, is commonly mounted on high-voltage board
It is interior, and meet the appropriate place of high tension voltage hierarchically secure distance, miniature infrared temperature probe is by probe diverter to high in cabinet
Pressure equipment is scanned thermometric, and temperature measurement data by optical fiber or is wirelessly transmitted to temperature conversion device, and miniature infrared measurement of temperature is visited
Head should turn to temperature immediately and carry out temperature correction to mark device when thermometric numerical value reaches fault point temperature settings.
Particularly, temperature conversion device be by miniature infrared temperature probe in a pre-installation, first carry out various from low temperature to high temperature
At a temperature of infrared measurement of temperature, and thermometric electric signal is compared with the temperature data measured with standard thermometer, and design programming
For functional relation, then carry out that measurement high temperature or low temperature can be extrapolated by measurement one or two low temperature or room temperature data again
The design programming of data accuracy, temperature conversion device also design programming have varying environment temperature thermometric value to be scaled normal temperature survey
Temperature value program.
Particularly, it is pre-designed in control module and is programmed in power high voltage cabinet that each high-tension apparatus is slight, moderate overheat temperature
Fault pre-alarming value is spent, happen suddenly pernicious overheating fault trip value.To happening suddenly, pernicious overtemperature accident design is programmed with: hot exterior measuring
After temperature reaches the pernicious overheating fault trip value of burst of setting, infrared temperature probe is immediately controlled and turns to temperature to mark device progress
Thermometric is compared, only small with standard temperature probe thermometric value error with standard temperature probe thermometric of the temperature to mark device
When setting value, control module just can control the breaking coil movement of power high voltage cabinet protection system, and control switch tripping is no
Then, trip operation order is not executed, has both guaranteed to occur to control switch trip, cutting electricity really when the pernicious overheating fault of burst in this way
Source, prevent the expansion of serious accident, and prevents since infrared measurement of temperature failure or error are excessive and cause switch malfunction situation
Occur, the staff of powerful guarantee power grid and the safety of equipment.
Particularly, power high voltage cabinet protection system includes: overheat alarm, breaker, circuit breaker trip coil, works as protection
When system receives control module and issues high-tension apparatus slight, moderate overheating fault alarm command occurs respectively, alarm divides
Different alarm warning signals is not issued, and staff is reminded to carry out inspection processing as early as possible.When protection system receives control mould
When block issues the instruction for the pernicious overheating fault tripping that occurs to happen suddenly, protection system circuit breaker breaking coil movement, contact of breaker
It separates, cuts off the power rapidly, prevent accident further expansion.
Compared with prior art, the invention has the following beneficial effects:
The present invention can when pernicious sudden overheating fault really occurs can accurately, control circuit breaker trip rapidly, prevent thing
Therefore expand, in turn avoid infrared temperature sensing device may cause that temperature-sensitive is inaccurate or failure causes out due to quality or using the time for a long time
The serious consequence of false tripping is closed, the safety of powerful guarantee power system staff and grid equipment reduces economic loss.
Detailed description of the invention
Fig. 1 is the power high voltage inside switch cabinet high-tension apparatus figure of the embodiment of the present invention.
Fig. 2 is that infrared temperature-sensitive protects on-line calibration device infrared probe to scan cabinet in the power high voltage cabinet of the embodiment of the present invention
Interior equipment schematic.
Fig. 3 is that the infrared temperature probe of the embodiment of the present invention turns to temperature to mark device progress temperature correction working principle diagram.
Fig. 4 is that infrared temperature-sensitive protects on-line calibration device to control in normal operation in the power high voltage cabinet of the embodiment of the present invention
Molding block elementary diagram.
It is former to issue alarm warning for control module control when Fig. 5 is the slight generation of the embodiment of the present invention or moderate overheating fault
Manage block diagram.
Control module controls circuit breaker trip principle side when Fig. 6 is the generation burst pernicious overheating fault of the embodiment of the present invention
Block diagram.
In figure, 1 is power high voltage cabinet, and 2 be miniature infrared temperature probe, and 3 be probe diverter, and 4 be handcart circuit breaker, 5
It is disconnecting switch for bus bar, 6,7 be high-voltage connection, and 8 be mutual inductor, and 9 be grounding switch, and 10 be arrester, and 11 be outlet electricity
Cable, 12 be optical fiber, and 13 be silver alloy plate, and 14 be standard temperature probe, and 15 be temperature conversion device, and 16 be control module, and 17 were
Heat detector, 18 be circuit breaker trip coil, and 19 be breaker, and 20 be infrared-ray.
Specific implementation method
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Fig. 2, infrared temperature-sensitive protection on-line calibration device and calibration method include in a kind of power high voltage cabinet
Power high voltage cabinet 1, temperature protect system to mark device, power high voltage cabinet；It include handcart circuit breaker 4 in the power high voltage cabinet, female
Line arranges 5, disconnecting switch 6, high-voltage connection 7, mutual inductor 8, grounding switch 9, arrester 10, outlet cable 11.
As shown in Figure 5,6 the following steps are included:
Step S1: miniature infrared temperature probe 2, probe diverter 3 are set in power high voltage cabinet；In the cabinet wall of power high voltage cabinet
On be provided with temperature to mark device comprising the material of silver alloy plate 13(or other excellent thermal conductivities) and standard temperature probe
14；
Step S2: a power high voltage cabinet is provided and protects system, the power high voltage cabinet protection system includes overheat alarm 17, breaks
Road device 19 and circuit breaker trip coil 18；
Step S3: a control system is provided, the control system includes temperature conversion device 15 and control module 16；
Step S4: miniature infrared temperature probe 2 is high to electric power in power high voltage cabinet 1 by probe diverter 3 in power high voltage cabinet 1
It presses equipment to carry out thermometric scanning, and infrared measurement of temperature data by optical fiber or is wirelessly transmitted to temperature conversion device 15；
Step S5: the infrared measurement of temperature value after temperature route marker 15 in step S4 is converted is transmitted in control module 16, when infrared
When thermometric value reaches slight overheating fault value, the overheat alarm 17 in power high voltage cabinet protection system issues slight overheating fault
Alarm signal reminds staff to check, monitoring；
Step S6: the infrared measurement of temperature value after temperature route marker 15 in step S4 is converted is transmitted in control module 16, when infrared
When thermometric value reaches moderate overheating fault value, the overheat alarm 17 in power high voltage cabinet protection system issues moderate overheating fault
Alarm signal reminds staff to take measures to check and overhaul as early as possible；
Step S7: the infrared measurement of temperature value after temperature route marker 15 in step S4 is converted is transmitted in control module 16, when infrared
Thermometric value reaches the pernicious overheating fault trip value of burst of setting, then miniature infrared temperature probe 2 is immediately controlled and turns to temperature pair
13 inner wall of silver alloy plate for marking device carries out thermometric, and measures on silver alloy plate 13 with standard temperature probe 14 of the temperature to mark device
The temperature measurement data of real-time temperature is compared, if the error of comparing result is less than setting value, it is high that control module 16 controls electric power
The circuit breaker trip coil 18 of cabinet protection system is pressed to act, otherwise control switch tripping, does not execute trip operation order.In this way
Both guaranteed to occur really to control switch trip when the pernicious overheating fault of burst, and cut off the power, prevent the generation of serious accident, and shut out
Absolutely due to infrared measurement of temperature failure or error it is excessive and cause switch malfunction the occurrence of, powerful guarantee power grid safety fortune
Row.
In the present embodiment, the silver alloy plate 13 is directly welded at power high voltage cabinet 1 and specifies on position of opening, and with electricity
Power high-voltage board 1 forms one, and the specified position of opening of the power high voltage cabinet 1 can be convenient by infrared temperature probe 2 miniature in cabinet
Steering alignment depending on, standard temperature probe 14 fits together with silver alloy plate 13, standard temperature probe 14 pass through optical fiber or
Wireless transmission is by the temperature conversion device 15 of the real-time temperature on-line normalization on silver alloy plate 13 to backstage, when needing to mark, by cabinet
Interior infrared temperature probe 2 turns to alignment 13 inner wall of silver alloy plate, and stops, at this time by cabinet infrared measurement of temperature data and cabinet outside
Within the allowable range whether standard temperature probe temperature measurement data is compared, see its error.
Preferably, the present embodiment additionally provides a kind of device based on the above method, including power high voltage cabinet 1, temperature are changed
It calculates device 15, control module 16, temperature and system is protected to mark device, power high voltage cabinet；
As shown in Figure 1, include in the power high voltage cabinet 1 miniature infrared temperature probe 2, probe diverter 3, handcart circuit breaker 4,
Bus bar 5, disconnecting switch 6, high-voltage connection 7, mutual inductor 8, grounding switch 9, arrester 10, outlet cable 11；
The temperature is located on 1 cabinet wall of power high voltage cabinet mark device comprising silver alloy plate 13(or other excellent thermal conductivities
Material) and standard temperature probe 14, the silver alloy plate 13 be directly welded at power high voltage cabinet 1 and specify on position of opening, and with
Power high voltage cabinet 1 forms one, and the standard temperature probe 14 fits together with the silver alloy plate 13；As shown in figure 3, mark
Quasi- temperature probe 14 is by optical fiber 12 or is wirelessly transferred the temperature of the real-time temperature on-line normalization on silver alloy plate 13 to backstage
Infrared temperature probe 2 in cabinet when needing to mark, is turned to alignment 13 inner wall of silver alloy plate, and stop, at this time by cabinet by route marker 15
Whether interior infrared measurement of temperature data are compared with 14 temperature measurement data of standard temperature probe outside cabinet, see its error in allowed band
It is interior.
The power high voltage cabinet protection system includes overheat alarm 17, breaker 19 and circuit breaker trip coil 18；
As shown in figure 4, the input terminal of the temperature conversion device 15 respectively with infrared temperature probe 2 miniature in power high voltage cabinet 1
The output end of output end and standard temperature probe 14 is electrical connected, and visits to receive miniature infrared temperature probe 2 with standard thermometric
First 14 temperature datas sent, the output end of the temperature conversion device 15 and the input terminal of control module 16 are electrical connected, to
The temperature data of miniature infrared temperature probe 2 and standard temperature probe 14 after conversion is sent to control module 16, the control
The output end of molding block 16 input terminal and circuit breaker trip with the overheat alarm 17 in power high voltage cabinet protection system respectively
The input terminal of coil 18 is electrical connected, and to control, hot exterior measuring temperature value reaches slight, moderate overheating fault value or burst is pernicious
It controls circuit breaker trip coil 18 when overheating fault trip value to act, and then control switch trips, the circuit breaker trip coil
The input terminal of 18 output end and breaker 19 is electrical connected, to control the moving contact of breaker of power high voltage cabinet protection system
Tripping.
Particularly, in the present embodiment, miniature infrared temperature probe 2 is mounted on probe diverter, forms one, jointly
It is mounted in high-voltage board, and meets the appropriate place of high tension voltage hierarchically secure distance, miniature infrared temperature probe 2 is turned by probe
Thermometric is scanned to high-tension apparatus in cabinet to device 3, and temperature measurement data by optical fiber or is wirelessly transmitted to temperature conversion device 15,
Miniature infrared temperature probe 2 should turn to temperature immediately and carry out temperature to mark device when thermometric numerical value reaches fault point temperature settings
Degree calibration.
Particularly, in the present embodiment, temperature conversion device 15 be by miniature infrared temperature probe 2 in a pre-installation, first carry out
The infrared measurement of temperature at various temperature from low temperature to high temperature, and thermometric electric signal is carried out with the temperature data measured with standard thermometer
It compares, and design programming is functional relation, then carries out to calculate by measurement one or two low temperature or room temperature data again
The design programming of high temperature or low temperature data accuracy is measured out, and temperature conversion device 15, which goes back design programming, varying environment temperature thermometric
Value is scaled normal temperature thermometric value program.
Particularly, in the present embodiment, it is pre-designed in control module 16 and is programmed with each high-tension apparatus in power high voltage cabinet 1
Slightly, moderate overtemperature fault pre-alarming value, happen suddenly pernicious overheating fault trip value.To the pernicious overtemperature accident design that happens suddenly
It is programmed with: after burst that infrared measurement of temperature reaches setting pernicious overheating fault trip value, the steering of infrared temperature probe 2 is immediately controlled
Thermometric is carried out to mark device to temperature, is compared with standard temperature probe 14 thermometric of the temperature to mark device, is only surveyed with standard
When temperature 14 thermometric value errors of probe are less than setting value, control module 16 just can control the breaking coil of power high voltage cabinet protection system
18 act, otherwise control switch tripping, does not execute trip operation order, have both guaranteed that the pernicious overheat event of burst occurs really in this way
Switch trip is controlled when barrier, is cut off the power, the expansion of serious accident is prevented, and is prevented since infrared measurement of temperature failure or error are excessive
And the occurrence of causing switch to malfunction, the staff of powerful guarantee power grid and the safety of equipment.
Particularly, in the present embodiment, power high voltage cabinet protection system includes: overheat alarm 17, breaker 19, open circuit
When protection system receives the sending high-tension apparatus of control module 16 slight, moderate overheating fault occurs respectively for device breaking coil 20
Alarm command when, alarm 17 issues different alarm warning signals respectively, and staff is reminded to carry out inspection processing as early as possible.
When protection system, which receives control module 16, issues the instruction for the pernicious overheating fault tripping that occurs to happen suddenly, system circuit breaker is protected
Breaking coil 18 acts, and contact of breaker is separated, cuts off the power rapidly, prevents accident further expansion.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (2)
1. infrared temperature-sensitive protection on-line calibration device and calibration method in a kind of power high voltage cabinet, it is characterised in that: including electric power
High-voltage board, temperature protect system to mark device, power high voltage cabinet；Include in the power high voltage cabinet handcart circuit breaker, bus bar, every
Leave pass, high-voltage connection, mutual inductor, grounding switch, arrester, outlet cable；
The following steps are included:
Step S1: miniature infrared temperature probe, probe diverter are set in power high voltage cabinet；On the cabinet wall of power high voltage cabinet
Temperature is provided with to mark device comprising silver alloy plate and standard temperature probe；
Step S2: a power high voltage cabinet is provided and protects system, the power high voltage cabinet protection system includes overheat alarm, open circuit
Device and circuit breaker trip coil；
Step S3: a control system is provided, the control system includes temperature conversion device and control module；
Step S4: miniature infrared temperature probe sets power high voltage in power high voltage cabinet by diverter of popping one's head in power high voltage cabinet
It is standby to carry out thermometric scanning, and infrared measurement of temperature data by optical fiber or are wirelessly transmitted to temperature conversion device；
Step S5: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
When value reaches slight overheating fault value, the overheat alarm in power high voltage cabinet protection system issues slight overheating fault alarm signal
Number, remind staff to check, monitoring；
Step S6: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
When value reaches moderate overheating fault value, the overheat alarm in power high voltage cabinet protection system issues moderate overheating fault alarm signal
Number, remind staff to take measures to check and overhaul as early as possible；
Step S7: the infrared measurement of temperature value after temperature route marker conversion in step S4 is transmitted in control module, infrared measurement of temperature is worked as
Value reaches the pernicious overheating fault trip value of burst of setting, then miniature infrared temperature probe is immediately controlled and turns to temperature to mark device
Silver alloy plate inner wall carries out thermometric, and the survey with temperature to the real-time temperature on the standard temperature probe measurement silver alloy plate of mark device
Warm data are compared, if the error of comparing result is less than setting value, control module controls power high voltage cabinet protection system
Circuit breaker trip coil motion, control switch tripping, otherwise, does not execute trip operation order.
2. infrared temperature-sensitive protection on-line calibration device and calibration method in a kind of power high voltage cabinet according to claim 1,
It specifies on position of opening it is characterized by: the silver alloy plate is directly welded at power high voltage cabinet, and is formed with power high voltage cabinet
One, depending on the specified position of opening of the power high voltage cabinet can easily turn to alignment by infrared temperature probe miniature in cabinet,
Standard temperature probe fits together with silver alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141773.6A CN109256753B (en) | 2018-09-28 | 2018-09-28 | Calibration method of infrared temperature sensing protection online calibration device in electric power high-voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141773.6A CN109256753B (en) | 2018-09-28 | 2018-09-28 | Calibration method of infrared temperature sensing protection online calibration device in electric power high-voltage cabinet |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356341Y (en) * | 1998-10-19 | 1999-12-29 | 石家庄铁路分局科技开发中心 | Dynamic detector for infrared shaft temperature test equipment |
| US20060115120A1 (en) * | 2004-11-30 | 2006-06-01 | Honda Motor Co., Ltd. | Vehicle surroundings monitoring apparatus |
| CN101706331A (en) * | 2009-09-28 | 2010-05-12 | 田陆 | Temperature sensor detector |
| CN104458013A (en) * | 2014-12-04 | 2015-03-25 | 北京振兴计量测试研究所 | Engine thermal protection structure temperature field multi-mode measuring system |
| CN104681367A (en) * | 2015-02-11 | 2015-06-03 | 国家电网公司 | Automatic tripping device and method adopting optical-fiber infrared control over thermal failure of power isolating switch |
| CN105633910A (en) * | 2016-02-19 | 2016-06-01 | 国网福建省电力有限公司 | Intelligent non-electricity protection device for power high-voltage switch cabinet and control method |
| CN106532738A (en) * | 2017-01-03 | 2017-03-22 | 浙江聚弘凯电气有限公司 | Low-voltage intelligent reactive compensation system device |
-
2018
- 2018-09-28 CN CN201811141773.6A patent/CN109256753B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356341Y (en) * | 1998-10-19 | 1999-12-29 | 石家庄铁路分局科技开发中心 | Dynamic detector for infrared shaft temperature test equipment |
| US20060115120A1 (en) * | 2004-11-30 | 2006-06-01 | Honda Motor Co., Ltd. | Vehicle surroundings monitoring apparatus |
| CN101706331A (en) * | 2009-09-28 | 2010-05-12 | 田陆 | Temperature sensor detector |
| CN104458013A (en) * | 2014-12-04 | 2015-03-25 | 北京振兴计量测试研究所 | Engine thermal protection structure temperature field multi-mode measuring system |
| CN104681367A (en) * | 2015-02-11 | 2015-06-03 | 国家电网公司 | Automatic tripping device and method adopting optical-fiber infrared control over thermal failure of power isolating switch |
| CN105633910A (en) * | 2016-02-19 | 2016-06-01 | 国网福建省电力有限公司 | Intelligent non-electricity protection device for power high-voltage switch cabinet and control method |
| CN106532738A (en) * | 2017-01-03 | 2017-03-22 | 浙江聚弘凯电气有限公司 | Low-voltage intelligent reactive compensation system device |
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