CN109375078A - It is a kind of for detecting the system and method for dry-type reactor interturn insulation - Google Patents
It is a kind of for detecting the system and method for dry-type reactor interturn insulation Download PDFInfo
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- CN109375078A CN109375078A CN201811455284.8A CN201811455284A CN109375078A CN 109375078 A CN109375078 A CN 109375078A CN 201811455284 A CN201811455284 A CN 201811455284A CN 109375078 A CN109375078 A CN 109375078A
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- voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/129—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of components or parts made of semiconducting materials; of LV components or parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of for detecting the system and method for dry-type reactor interturn insulation, belongs to technical field of high voltage.Present system includes: power module, exports DC voltage after the power module acquisition three-phase 380V voltage conversion；Data acquisition module, the DC voltage of the data collecting module collected power module and the oscillating voltage of test item, and collected voltage signal is transferred to control module；The DC voltage that power module exports is converted oscillating voltage by discharge switch；Control module, the control module control system operation, system protection, data analytical calculation and control discharge switch electric discharge.For the present invention by using electronic power switch as discharge switch, highest can realize stable reignition at 380kV, can produce oscillating voltage waveform needed for meeting 66kV and 110kV dry reactor winding inter-turn pressure test.
Description
Technical field
The present invention relates to technical field of high voltage, and more particularly, to one kind for detecting dry reactor turn-to-turn
The system and method for insulation.
Background technique
Dry-type air-core reactor design service life is generally 20 years or more, has statisticallyd analyze the reactance occurred in nearly 15 years
Device accident, in terms of service condition, after reactor hanging net operation, damage accident it occur frequently that, often 5-8 occurs as soon as failure,
Even catching fire, this brings very big influence to power network safety operation.
With the promulgation of IEC60060-3 standard, carries out oscillation mode impulse voltage test at the scene and be taken seriously, especially
Compared to two fingers number surge voltage, oscillation mode surge voltage is due to being more easier the production of the defects of excitation set with oscillating characteristic
Raw local discharge signal.According to IEEE C57.21 standard and factory's convention, for 35kV and dry reactor below, winding
Turn-to-turn pressure test is routine test, and lightning impulse test is type approval test；When system voltage is higher than 35kV, winding inter-turn is resistance to
Pressure tests tested experiment device condition limitation, then all-wave impact test is used to replace winding inter-turn pressure test as routine test.
Summary of the invention
In view of the above-mentioned problems, the invention proposes a kind of system for detecting dry-type reactor interturn insulation, the present invention
System includes:
Power module exports DC voltage after the power module acquisition three-phase 380V voltage conversion；
Data acquisition module, the DC voltage of the data collecting module collected power module and the oscillation electricity of test item
Pressure, and collected voltage signal is transferred to control module；
The DC voltage that power module exports is converted oscillating voltage by discharge switch；
Control module, the control module control system operation, system protection, data analytical calculation and control discharge switch
Electric discharge.
Optionally, control module includes industrial personal computer and programmable logic controller (PLC) PLC；The industrial personal computer is industrial portable meter
Calculation machine, the PLC use FPX0-L40R programmable controller.
Optionally, power module includes:
Three-phase 380V power supply, the three-phase 380V power supply power to power module and are transmitted to variable-frequency power sources；
Variable-frequency power sources, the variable-frequency power sources, which receives, powers inverted output 300Hz voltage of intermediate frequency and is transmitted to intermediate frequency transformation；
The boost in voltage that variable-frequency power sources exports to 150kV and is transmitted to monopole by intermediate-frequency transformer, the intermediate-frequency transformer
Property times pressure cylinder；
Unipolarity times pressure cylinder, the unipolarity times pressure cylinder, which boosts, gives charging resistor capacitor charging, after capacitor is fully charged, through putting
Electric switch applies oscillating voltage to test item dry reactor,
Charging capacitor, the charging capacitor voltage are acquired by divider,
Optionally, data acquisition module includes:
Divider, the divider acquires power module charging capacitor d. c. voltage signal, and is transmitted to and adopts
Truck；
Divider is tested, the oscillatory voltage signals of the test divider acquisition test item are simultaneously transmitted to capture card；
Capture card, the capture card receive the d. c. voltage signal of divider acquisition and the vibration of test divider acquisition
Voltage signal is swung, and d. c. voltage signal and oscillatory voltage signals are transmitted to control module.
Optionally, capture card is PXIe data collecting card.
Optionally, discharge switch is the electronic power switch that multiple IGBT are combined into series and parallel.
The invention also provides a kind of method for detecting dry-type reactor interturn insulation, the method for the present invention includes:
Power module charging capacitor voltage and control discharge switch discharge time is arranged in control module；
The variable-frequency power sources of startup power supply module is charging capacitor charging, data acquisition module divider acquisition charging electricity
Hold voltage, until being charged to target voltage values；
Control module issues trigger command and triggers discharge switch, applies oscillating voltage waveform to test item, passes through test point
Depressor acquires the oscillating voltage waveform on test product winding；
Control module records the oscillating voltage waveform at test product end, analyzes waveform, judges that subject reactor turn-to-turn is exhausted
Edge state.
For the present invention by using electronic power switch as discharge switch, highest can realize stable repetition at 380kV
Electric discharge, can produce oscillating voltage waveform needed for meeting 66kV and 110kV dry reactor winding inter-turn pressure test.The present invention
Oscillatory surge voltage test directly can be carried out to 66kV and 110kV dry reactor, instead of lighting full-wave impulse test, more favorably
In the examination of dry reactor insulation between coils.
Detailed description of the invention
Fig. 1 is that the present invention is a kind of for detecting the system construction drawing of dry-type reactor interturn insulation；
Fig. 2 is that the present invention is a kind of for detecting the method flow diagram of dry-type reactor interturn insulation.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
The present invention provides a kind of systems for detecting dry-type reactor interturn insulation, as shown in Figure 1, comprising:
Power module exports DC voltage after the power module acquisition three-phase 380V voltage conversion；
Power module includes:
Three-phase 380V power supply, the three-phase 380V power supply power to power module and are transmitted to variable-frequency power sources；
Variable-frequency power sources, the variable-frequency power sources, which receives, powers inverted output 300Hz voltage of intermediate frequency and is transmitted to intermediate frequency transformation；
The boost in voltage that variable-frequency power sources exports to 150kV and is transmitted to monopole by intermediate-frequency transformer, the intermediate-frequency transformer
Property times pressure cylinder；
Unipolarity times pressure cylinder, the unipolarity times pressure cylinder, which boosts, gives charging resistor capacitor charging, after capacitor is fully charged, through putting
Electric switch applies oscillating voltage to test item dry reactor,
Charging capacitor, the charging capacitor voltage are acquired by divider.
Data acquisition module, the DC voltage of the data collecting module collected power module and the oscillation electricity of test item
Pressure, and collected voltage signal is transferred to control module；
Divider, the divider acquires power module charging capacitor d. c. voltage signal, and is transmitted to and adopts
Truck；
Divider is tested, the oscillatory voltage signals of the test divider acquisition test item are simultaneously transmitted to capture card；
Capture card, the capture card receive the d. c. voltage signal of divider acquisition and the vibration of test divider acquisition
Voltage signal is swung, and d. c. voltage signal and oscillatory voltage signals are transmitted to control module, capture card is the acquisition of PXIe data
Card.
The DC voltage that power module exports is converted oscillating voltage by discharge switch；Discharge switch is multiple IGBT string
Parallel combination at electronic power switch
Control module, the control module control system operation, system protection, data analytical calculation and control discharge switch
Electric discharge.Wherein system protection, pilot system prevent test product insulation breakdown, and the protection dress of overvoltage or overcurrent occurs in when test
It sets, detects output voltage or electric current more than after protection value, control module cutting is output and input.Control module includes industrial personal computer
With programmable logic controller (PLC) PLC；The industrial personal computer is industrial portable computer, and the PLC uses FPX0-L40R programmable control
Device processed.
The present invention also provides a kind of methods for detecting dry-type reactor interturn insulation, as shown in Figure 2, comprising:
Power module charging capacitor voltage and discharge switch discharge time is arranged in control module；
The variable-frequency power sources of startup power supply module is charging capacitor charging, data acquisition module divider acquisition charging electricity
Hold voltage, until being charged to target voltage values, the dry reactor test product of different voltages grade, target voltage values are different, 10kV electricity
Anti- device target value about 66kV, 35kV reactor target value about 160kV, 110kV reactor target value about 360kV；
Discharge switch is triggered, applies oscillating voltage waveform to test item, is acquired on test product winding by test divider
Oscillating voltage waveform；
Control module records the oscillating voltage waveform at test product end, analyzes waveform, judges that subject reactor turn-to-turn is exhausted
Edge state.
For the present invention by using electronic power switch as discharge switch, highest can realize stable repetition at 380kV
Electric discharge, can produce oscillating voltage waveform needed for meeting 66kV and 110kV dry reactor winding inter-turn pressure test.By answering
Oscillatory surge voltage test directly can be carried out to 66kV and 110kV dry reactor with the present invention, impact and try instead of thunder and lightning all-wave
It tests, is more advantageous to the examination of dry reactor insulation between coils.
Claims (7)
1. a kind of system for detecting dry-type reactor interturn insulation, the system comprises:
Power module exports DC voltage after the power module acquisition three-phase 380V voltage conversion；
Data acquisition module, the DC voltage of the data collecting module collected power module and the oscillating voltage of test item, and
Collected voltage signal is transferred to control module；
The DC voltage that power module exports is converted oscillating voltage by discharge switch；
Control module, the control module control system operation, system protection, data analytical calculation and control discharge switch are put
Electricity.
2. system according to claim 1, the control module includes industrial personal computer and programmable logic controller (PLC) PLC；
The industrial personal computer is industrial portable computer, and the PLC uses FPX0-L40R programmable controller.
3. system according to claim 1, the power module include:
Three-phase 380V power supply, the three-phase 380V power supply power to power module and are transmitted to variable-frequency power sources；
Variable-frequency power sources, the variable-frequency power sources, which receives, powers inverted output 300Hz voltage of intermediate frequency and is transmitted to intermediate frequency transformation；
The boost in voltage that variable-frequency power sources exports to 150kV and is transmitted to unipolarity times by intermediate-frequency transformer, the intermediate-frequency transformer
Pressure cylinder；
Unipolarity times pressure cylinder, the unipolarity times pressure cylinder, which boosts, gives charging resistor capacitor charging, after capacitor is fully charged, opens through electric discharge
It closes to test item dry reactor and applies oscillating voltage；
Charging capacitor, the charging capacitor voltage are acquired by divider.
4. system according to claim 1, the data acquisition module include:
Divider, the divider acquires power module charging capacitor d. c. voltage signal, and is transmitted to capture card；
Divider is tested, the oscillatory voltage signals of the test divider acquisition test item are simultaneously transmitted to capture card；
Capture card, the capture card receive the d. c. voltage signal of divider acquisition and the oscillation electricity of test divider acquisition
Signal is pressed, and d. c. voltage signal and oscillatory voltage signals are transmitted to control module.
5. system according to claim 4, the capture card is PXIe data collecting card.
6. system according to claim 1, the discharge switch is the power electronics that multiple IGBT are combined into series and parallel
Switch.
7. a kind of method for detecting dry-type reactor interturn insulation, which comprises
Power module charging capacitor voltage and control discharge switch discharge time is arranged in control module；
The variable-frequency power sources of startup power supply module is charging capacitor charging, and data acquisition module divider acquires charging capacitor electricity
Pressure, until being charged to target voltage values；
Control module issues trigger command and triggers discharge switch, applies oscillating voltage waveform to test item, by testing divider
Acquire the oscillating voltage waveform on test product winding；
Control module records the oscillating voltage waveform at test product end, analyzes waveform, judges to be tested reactor turn-to-turn insulation shape
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455284.8A CN109375078A (en) | 2018-11-30 | 2018-11-30 | It is a kind of for detecting the system and method for dry-type reactor interturn insulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455284.8A CN109375078A (en) | 2018-11-30 | 2018-11-30 | It is a kind of for detecting the system and method for dry-type reactor interturn insulation |
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Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458604A (en) * | 2019-12-27 | 2020-07-28 | 广东电网有限责任公司电力科学研究院 | Transformer self-sensing-based oscillation type lightning impulse test system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111458604A (en) * | 2019-12-27 | 2020-07-28 | 广东电网有限责任公司电力科学研究院 | Transformer self-sensing-based oscillation type lightning impulse test system and method |
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Application publication date: 20190222 |