CN110231550A - The experimental simulation device and method of gas insulated electric apparatus Arcing fault - Google Patents
The experimental simulation device and method of gas insulated electric apparatus Arcing fault Download PDFInfo
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- CN110231550A CN110231550A CN201910548685.6A CN201910548685A CN110231550A CN 110231550 A CN110231550 A CN 110231550A CN 201910548685 A CN201910548685 A CN 201910548685A CN 110231550 A CN110231550 A CN 110231550A
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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
- G01R31/1254—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 gas-insulated power appliances or vacuum gaps
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Abstract
The invention discloses the experimental simulation devices and method of a kind of gas insulated electric apparatus Arcing fault, belong to the state of insulation on-line monitoring technique field of sulfur hexafluoride gas-insulating electrical equipment, gas insulation electric appliance equipment simulated arc fault is carried out by tandem circuit, control relay circuit module, delay control circuit module, energy gauge and gas detecting system, the experimental simulation device of gas insulated electric apparatus Arcing fault is simulated by the experiment analogy method of gas insulated electric apparatus Arcing fault, solves existing SF6The fault simulation laboratory installation of gas insulated electric apparatus can not effectively simulate Arcing fault, improve SF for building6The method for diagnosing faults and state of insulation comprehensive assessment system of electrical equipment have established solid experiment basis, and provide certain technical support for apparatus insulated state on_line monitoring in the future and assessment.
Description
Technical field
The invention belongs to sulfur hexafluoride (SF6) gas insulated electric apparatus state of insulation on-line monitoring technique neck
Domain more particularly to a kind of SF6The experimental simulation device and method of the Arcing fault of gas insulated electric apparatus.
Background technique
SF6Gas-insulated equips (GIS, GIT, GIL and GCB etc.) because its occupied area is small, safe and reliable to operation, electromagnetism spoke
It penetrates the outstanding advantages such as small, the time between overhauls(TBO) is long and is widely used in high pressure and ultra-high/extra-high voltage power transmission and transformation field, be increasingly becoming existing
For the preferred unit of urban electricity supply substation construction.In addition, currently to opening conventional change existing in urban distribution network
Power station is gradually transformed, instead with SF6Enclosed substation based on gas-insulated.
Due to SF6The operational reliability of gas-insulated equipment is high, therefore it is generally considered always few maintenance even
Non-maintaining electrical equipment, however according to the statistics of the international bulk power grid committee (CIGRE), failure rate is much higher than International Power
The failure of the committee (IEC) standard suggestion is horizontal.In these failures, insulation defect causes the ratio highest of failure.Therefore,
SF6Gas-insulated equipment is both the major source of one of capital equipment for constituting urban distribution network and initiation electric power accident, can
Big and medium-sized cities group's power supply reliability is both directly ensured by running, and also directly ensures the security and stability of civil order.
For this purpose, China is when implementing global energy Internet Construction, in addition to greatly develop with ultra-high/extra-high voltage power grid as spy
The sturdy power grid construction of sign is outer, it is necessary to it is catastrophic to power grid security reliability service bring to pay attention to power transmission and transformation equipment faults itself
It influences, reinforces monitoring and the fault pre-alarming of power transmission and transformation equipment oneself state, the fortune for enabling power grid automatic sensing power transmission and transformation to equip
Row state can carry out corresponding defensive measure in advance when equipment fault occurs flexibly to cope with, realize entire electric system
Safe and stable operation.By common operating experience it is found that before great insulation fault occurs for the equipment such as GIS, SF6Gas is exhausted
Edge equip internal necessary being insulation defect inconspicuous, since electric field generates power and mechanical force during armament-related work
It is long-term under the influence of, can ageing equipment be accelerated.If not discovering defect in time, rejected region can further develop, first
Shelf depreciation is formed, will form spark discharge or arc discharge etc. when serious.
And work as SF6When there is above-mentioned failure in gas-insulated equipment, SF6Gas is cracked to form low-fluorine sulfide, goes forward side by side one
Step generates miscellaneous decomposition product with the micro- oxa- qualitative response of water micro- in gas chamber.On the one hand, the decomposition product of generation will be right
Solid metal material has corrosiveness, accelerates insulation degradation, on the other hand, the changing rule and insulation fault of these decomposition products
Type and its severity connection are close.Currently, most of research is concentrated at home and abroad for shelf depreciation, spark discharge failure
The qualitative or quantitative analysis of lower stable product and fault type corresponding relationship, SF under Arcing fault6Resolution characteristic is still mesh
Preceding yet unresolved issue.
Based on this, this patent proposes gas insulated electric apparatus arc discharge experimental simulation device, and solves current reality
Test it is indoor can not accurate simulation arc discharge critical problem, improve SF for building6The method for diagnosing faults of electrical equipment and
State of insulation comprehensive assessment system has established solid experiment basis, and mentions for apparatus insulated state on_line monitoring in the future and assessment
For certain technical support.
Summary of the invention
The purpose of the present invention is to provide a kind of experimental simulation device of gas insulated electric apparatus Arcing fault and
Method, to solve existing SF6The fault simulation laboratory installation of gas insulated electric apparatus can not effectively simulate electric arc and put
The shortcomings that electric fault.
To achieve the above object, the present invention provides a kind of experiment of gas insulated electric apparatus Arcing fault simulations
Device, comprising:
Tandem circuit connects to power supply the experiment simulation for carrying out gas insulated electric apparatus Arcing fault, packet
Include: pressure regulator, halo-free testing transformer, protective resistance, high voltage silicon rectifier stack, single-pole double-throw relay, storage capacitor, coupling inductance,
Thyristor, breaker, high-pressure conduit, low-pressure tube and faraday cup；The output end of the pressure regulator and halo-free testing transformer
Input terminal it is in parallel；One end of the output end of the halo-free testing transformer is grounded；The output end of the halo-free testing transformer
The other end connect protective resistance, one end of the other end of the protective resistance and high voltage silicon rectifier stack connects, the high voltage silicon rectifier stack
The other end is connected with the normally-closed contact of single-pole double-throw relay；The common of the single-pole double-throw relay and storage capacitor
One end connection, one end and shell of the other end of the storage capacitor and halo-free testing transformer altogether, and are connected to terminal n；
The normally opened contact of the single-pole double-throw relay and one end of coupling inductance connect, the other end and thyristor of the coupling inductance
Anode connection, the cathode connecting terminal m of the thyristor；One end of the faraday cup is connect with terminal m, the other end and end
Sub- n connection；Breaker is placed in the inside of faraday's cage, and one end of the breaker is connect with terminal m, the other end and terminal
N connection；One end of conductive rod in the high-pressure conduit passes through faraday cup and is connected with breaker high-voltage end, the other end and terminal
M connection；Conductive rod one end in low-pressure tube passes through faraday cup and is connected with breaker low-pressure end, and the other end is connect with terminal n；
Control relay circuit module, output end is connect with the coil of the single-pole double-throw relay, for controlling
State the charge and discharge of tandem circuit；
Delay control circuit module, input terminal are connect with the gate pole of the thyristor, and output end and the breaker connect
It connects, for measuring the experiment correlation time data of the gas insulated electric apparatus Arcing fault；
Energy gauge, connect with terminal m and terminal n connection respectively, for acquiring and showing that arc discharge is instantaneously electric
Galvanic electricity corrugating；And
Gas detecting system is connect with the outlet valve of the breaker, for vacuumizing to breaker, and will be put
SF after electricity6It decomposes gas and quantitative measurment is carried out by the gas detecting system.
Further, the energy gauge includes: high-voltage probe, Rogowski coil and oscillograph；The high-voltage probe
Test side connection oscillograph high-voltage signal receiving end, the input terminal of the oscillograph connect with Rogowski coil；The high pressure
The high-voltage end of probe is connect with terminal m, and Rogowski coil set is connect with terminal n.
Further, the gas detecting system includes: air extractor and gaschromatographic mass spectrometry linkage instrument, the gas phase color
The outlet valve of the test side and breaker of composing mass spectrum linkage instrument connects；The outlet valve of breaker also with the connection of air extractor
The connection of vacuum switch valve.
The experiment analogy method of gas insulated electric apparatus Arcing fault, comprising the following steps:
S1, by the wiring as requested of each section of the experimental simulation device of the Arcing fault of gas insulated electric apparatus
It finishes；
S2, breaker is vacuumized by gas detecting system using after alcohol washes circuit breaker internal element, is filled with one
Determine the SF that purity is6New gas, and stand；
S3, the live operating condition normal and abnormal for the micro- water of mimic-disconnecting switch, oxygen, to SF6The micro- water of air insulating device,
The regulation of oxygen content adds appropriate micro- water, oxygen is tested；
It S4, is research breaker metal material for SF6The disconnected of different model is replaced in the influence of arc discharge resolution characteristic
Road device is tested；
It S5, is to study SF under different discharge energies and discharge frequency6Arc discharge resolution characteristic, using adjustment tandem circuit
Input voltage change SF6Arc discharge energy size acquires arc discharge momentary interruption device both ends using energy gauge
Voltage and current, calculate obtain SF6Arc discharge energy size；Meanwhile being arranged according to the time of delay control circuit module
It is accurate to calculate SF6Arc discharge number；
S6, breaker is vacuumized by gas detecting system, SF after being discharged by the outlet valve of breaker6Point
It solves gas and is sent into gas detecting system progress quantitative measurment；
S7, arc discharge transient current voltage waveform is shown by energy gauge.
Further, the SF6The calculation formula of arc discharge ENERGY E are as follows: E=∫ u (t) i (t) dt, wherein u (t) and i
It (t) is the voltage and current at arc discharge momentary interruption device both ends.
Further, the SF6The purity of new gas is 99%-100%.
Further, the time stood in the S2 is for 24 hours.
Compared with prior art, the invention has the following beneficial effects:
The experimental simulation device of gas insulated electric apparatus Arcing fault provided by the present invention passes through basic electricity
Road, control relay circuit module, delay control circuit module, energy gauge and gas detecting system carry out gas-insulated
Electrical equipment simulated arc fault, by the experiment analogy method of gas insulated electric apparatus Arcing fault to gas-insulated
The experimental simulation device of electrical equipment Arcing fault is simulated, and solves existing SF6The event of gas insulated electric apparatus
Barrier simulated experiment chamber device can not effectively simulate Arcing fault, improve SF for building6The method for diagnosing faults of electrical equipment
Solid experiment basis has been established with state of insulation comprehensive assessment system, and has been apparatus insulated state on_line monitoring and assessment in the future
Certain technical support is provided.
Detailed description of the invention
It, below will be to attached drawing needed in embodiment description in order to illustrate more clearly of technical solution of the present invention
It is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the present of invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the present invention；
Wherein: 1- tandem circuit, AC- pressure regulator, the halo-free testing transformer of T-, R- protective resistance, VD- high voltage silicon rectifier stack, K1-
Single-pole double-throw relay, C- storage capacitor, L- coupling inductance, V- thyristor, QF- breaker, 10- faraday cup, 11- relay
Control circuit module, 12- delay control circuit module, 13- Rogowski coil, 14- high-voltage probe, 15- oscillograph, 16- gas production mouth
Valve.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the present invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's every other embodiment obtained without creative labor,
It shall fall within the protection scope of the present invention.
As shown in Figure 1, the experimental simulation device of the Arcing fault of gas insulated electric apparatus provided by the present invention
It include: tandem circuit 1, control relay circuit module, delay control circuit module 12, energy gauge and gas detection system
System.
Basic circuit 1 includes: pressure regulator AC, halo-free testing transformer T, protective resistance R, high voltage silicon rectifier stack VD, single-pole double throw
Relay K1, storage capacitor C, coupling inductance L, thyristor V, circuit breaker Q F and faraday cup 10.Tandem circuit 1 is used for for storage
The charge and discharge process of energy capacitor C.Pressure regulator AC, halo-free testing transformer T, protective resistance R, high voltage silicon rectifier stack VD, single-pole double throw after
Electric appliance K1, storage capacitor C, coupling inductance L, thyristor V, circuit breaker Q F and faraday cup 10 are integrated inside the shell.
Pressure regulator input termination 220V/50Hz alternating current, the input terminal of the output end of pressure regulator AC and halo-free testing transformer T
It is in parallel.One end of the output end of halo-free testing transformer T is grounded；The other end of the output end of halo-free testing transformer T, which is connected, to be protected
Resistance R is protected, the other end of protective resistance R is connect with one end of high voltage silicon rectifier stack VD, the other end and single-pole double throw of high voltage silicon rectifier stack VD
The normally-closed contact of relay K1 is connected；The coil of single-pole double-throw relay K1 and the output end of control relay circuit module 11 connect
It connects；The common of single-pole double-throw relay K1 is connect with one end of storage capacitor C, the other end of storage capacitor C and halo-free examination
The one end for testing transformer T and shell altogether, and are connected to terminal n；The normally opened contact and coupling inductance L of single-pole double-throw relay K1
One end connection, the other end of coupling inductance L connect with the anode (pole A) of thyristor V, cathode (pole K) connecting pin of thyristor V
The gate pole (pole G) of sub- m, thyristor V are connect with the end input a of delay control circuit module 12, delay control circuit module 12
The output end b and circuit breaker Q F are connected to its control signal wire；One end of faraday cup 10 is connect with terminal m, the other end and end
Sub- n connection；Circuit breaker Q F is placed in the inside of faraday's cage 10, and one end of circuit breaker Q F is connect with terminal m, the other end and end
Sub- n connection.One end of conductive rod in high-pressure conduit passes through faraday cup 10 and is connected with circuit breaker Q F high-voltage end, the other end and end
Sub- m connection.Conductive rod one end in low-pressure tube passes through faraday cup 10 and is connected with circuit breaker Q F low-pressure end, the other end and terminal
N connection.
Energy gauge includes: high-voltage probe 14, Rogowski coil 13 and oscillograph 15, and the test side of high-voltage probe 14 connects
The high-voltage signal receiving end of oscillograph 15 is connect, the input terminal of oscillograph 15 is connect with Rogowski coil 13.The high pressure of high-voltage probe 14
End is connect with terminal m, and Rogowski coil set 13 is on the ground line of circuit breaker Q F low-pressure side (one end connecting with terminal n).
Gas detecting system includes: air extractor and gaschromatographic mass spectrometry linkage instrument GC/MS, and gas production mouth valve 16 is breaker
The outlet valve of QF, the test side (thief hatch triple valve) that gas chromatography-mass spectrum moves instrument GC/MS are connect with gas production mouth valve 16.It adopts
Port valve 16 is also connect with the connection vacuum switch valve of air extractor.
Control relay circuit module 11 uses commercially available JSS48A-S cycle time relay, and rated operational current is
1.5A, turn-on time and turn-off time can be freely arranged, and time range is 0.1s~99h.Single-pole double-throw relay K1 and relay
The cooperation of device control circuit module 11 constitutes the relay control unit of apparatus of the present invention, can accurately control the energy storage
The charge and discharge time of capacitor C.
Delay control circuit module 12 is power delay signal module, is commercially available NE555 time delay module.
Gas chromatography-mass spectrometry GC-MS is QP2010Ultra gas chromatography-mass spectrometry, what chromatographic column used
It is CP-Sil 5CB type capillary column, to separate SF6Arc discharge decomposes gas, and it is 99.999% that purity is selected in chromatographic column carrier gas
He gas, column flow are set as 1.2ml/min, split ratio 25:1, and post case temperature is constant to be 40 DEG C and keep 6.8min.
The working principle of the experimental simulation device of the Arcing fault of gas insulated electric apparatus of the present invention is carried out detailed
Describe in detail it is bright so that those skilled in the art know more about the present invention:
Pressure regulator AC input terminate 220V/50Hz alternating current, 220V/50Hz by pressure regulator AC carry out pressure regulation, after pass through nothing
Dizzy testing transformer T is depressured, and simulation actual circuit is carried out；Electric current after decompression flow through protective resistance R, high voltage silicon rectifier stack VD into
Row rectification flows into single-pole double-throw relay K1；When single-pole double-throw relay K1 is in normal-closed end, storage capacitor C charging, hilted broadsword
Storage capacitor C discharge loop is connected in double-throw relay K1 movement, at this point, the pole A of thyristor V is in positive polarity, NE555 delay mould
Block is main to make thyristor V, circuit breaker Q F by issuing high level to realize that it is synchronous with arc current that circuit breaker Q F is cut-off
Close a floodgate formation arc current in the conductive state, while controlling circuit breaker Q F and cut-offfing movement.
The experiment analogy method of the Arcing fault of gas insulated electric apparatus the following steps are included:
S1, by the wiring as requested of each section of the experimental simulation device of the Arcing fault of gas insulated electric apparatus
It finishes.
S2, circuit breaker Q F is vacuumized using after alcohol washes circuit breaker Q F internal element, being filled with purity is 99.999%
SF6New gas, and stand for 24 hours.
S3, the live operating condition normal and abnormal for the micro- water of mimic-disconnecting switch QF, oxygen, according to " electric power apparatus examination tries
Test regulation " to SF6The regulation of the micro- water of air insulating device, oxygen content adds appropriate micro- water, oxygen is tested.
It S4, is research circuit breaker Q F metal material for SF6The influence of arc discharge resolution characteristic, replaces different model
Circuit breaker Q F.
It S5, is to study SF under different discharge energies and discharge frequency6Arc discharge resolution characteristic, using adjustment input voltage
Change arc discharge energy size, arc discharge momentary interruption device QF two is acquired using high-voltage probe 14 and Rogowski coil 13 respectively
The voltage u (t) and electric current i (t) at end, and calculated using formula E=∫ u (t) i (t) dt and obtain SF6Arc discharge energy size, from
And Arcing fault severity is subjected to Energy Quantization.Meanwhile accurate calculate is arranged according to the time of delay control circuit
SF6Arc discharge number (frequency).
S6, the thief hatch triple valve that instrument GC/MS is moved by the vacuum switch valve of air extractor, gas chromatography-mass spectrum,
Gas production mouth valve 16 and air extractor control vacuumize circuit breaker Q F.It (or is adopted using polytetrafluoroethylene (PTFE) by gas production mouth valve 16
Airbag acquisition) electric discharge after SF6It decomposes gas and is sent into the dynamic instrument GC/MS progress quantitative measurment of gas chromatography-mass spectrum.
S7, acquisition oscillograph 15 acquire and show arc discharge transient current voltage waveform.
To sum up, the experimental simulation device of the Arcing fault of gas insulated electric apparatus of the present invention, uses ac high-voltage
Power supply more meets live actual motion environment and condition, improves SF6The simulation of gas insulated electric apparatus Arcing fault
Accuracy；According to the adjustment of S3, S4, SF is measured by S5, S66Arc discharge energy size, delay control circuit time set
Set accurate reckoning SF6Arc discharge number, gas chromatography-mass spectrum move instrument GC/MS detection arc discharge and decompose gaseous product and adopt
Collection oscillograph 15 acquires and shows arc discharge transient current voltage waveform, to study and improving SF6Fault diagnosis
And on-line monitoring system provides solid experiment basis.The folding of control relay circuit module 11 and circuit breaker Q F ensure
Periodicity, validity, adequacy and the stability of arc discharge.
Above disclosed is only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, can readily occur in variation or modification,
It is covered by the protection scope of the present invention.
Claims (7)
1. the experimental simulation device of gas insulated electric apparatus Arcing fault, it is characterised in that: include:
Tandem circuit connects to power supply the experiment simulation for carrying out gas insulated electric apparatus Arcing fault, comprising:
Pressure regulator, halo-free testing transformer, protective resistance, high voltage silicon rectifier stack, single-pole double-throw relay, storage capacitor, coupling inductance, brilliant lock
Pipe, breaker, high-pressure conduit, low-pressure tube and faraday cup；The output end of the pressure regulator is defeated with halo-free testing transformer
It is in parallel to enter end；One end of the output end of the halo-free testing transformer is grounded；The output end of the halo-free testing transformer it is another
One end is connected protective resistance, and one end of the other end of the protective resistance and high voltage silicon rectifier stack connects, the high voltage silicon rectifier stack it is another
End is connected with the normally-closed contact of single-pole double-throw relay；The common of the single-pole double-throw relay and one end of storage capacitor
One end of connection, the other end of the storage capacitor and halo-free testing transformer and shell altogether, and are connected to terminal n；It is described
The normally opened contact of single-pole double-throw relay and one end of coupling inductance connect, the other end of the coupling inductance and the sun of thyristor
Pole connection, the cathode connecting terminal m of the thyristor；One end of the faraday cup is connect with terminal m, the other end and terminal n
Connection；Breaker is placed in the inside of faraday's cage, and one end of the breaker is connect with terminal m, and the other end and terminal n connect
It connects；One end of conductive rod in the high-pressure conduit passes through faraday cup and is connected with breaker high-voltage end, and the other end and terminal m connect
It connects；Conductive rod one end in low-pressure tube passes through faraday cup and is connected with breaker low-pressure end, and the other end is connect with terminal n；
Control relay circuit module, output end are connect with the coil of the single-pole double-throw relay, for controlling the base
The charge and discharge of plinth circuit；
Delay control circuit module, input terminal are connect with the gate pole of the thyristor, and output end is connect with the breaker, are used
In the experiment correlation time data for measuring the gas insulated electric apparatus Arcing fault；
Energy gauge, connect with terminal m and terminal n connection respectively, for acquiring and showing arc discharge transient current electricity
Corrugating；And
Gas detecting system is connect with the outlet valve of the breaker, for being vacuumized to breaker, and will be after electric discharge
SF6It decomposes gas and quantitative measurment is carried out by the gas detecting system.
2. the experimental simulation device of gas insulated electric apparatus Arcing fault according to claim 1, feature exist
In: the energy gauge includes: high-voltage probe, Rogowski coil and oscillograph；The test side connection of the high-voltage probe is shown
The high-voltage signal receiving end of wave device, the input terminal of the oscillograph are connect with Rogowski coil；The high-voltage end of the high-voltage probe with
Terminal m connection, Rogowski coil set are connect with terminal n.
3. the experimental simulation device of gas insulated electric apparatus Arcing fault according to claim 1, feature exist
In: the gas detecting system includes: air extractor and gaschromatographic mass spectrometry linkage instrument, and the gas chromatography-mass spectrum moves instrument
The connection of the outlet valve of test side and breaker；The outlet valve of breaker also connects with the connection vacuum switch valve of air extractor
It connects.
4. the experiment analogy method of gas insulated electric apparatus Arcing fault, it is characterised in that: the following steps are included:
S1, by each section of the experimental simulation device of the Arcing fault of gas insulated electric apparatus, wiring is complete as requested
Finish；
S2, breaker is vacuumized by gas detecting system using after alcohol washes circuit breaker internal element, is filled with certain pure
The SF of degree6New gas, and stand；
S3, the live operating condition normal and abnormal for the micro- water of mimic-disconnecting switch, oxygen, to SF6The micro- water of air insulating device, oxygen contain
The regulation of amount adds appropriate micro- water, oxygen is tested；
It S4, is research breaker metal material for SF6The breaker of different model is replaced in the influence of arc discharge resolution characteristic
It is tested；
It S5, is to study SF under different discharge energies and discharge frequency6Arc discharge resolution characteristic, using the defeated of adjustment tandem circuit
Enter voltage and changes SF6Arc discharge energy size, using the electricity at energy gauge acquisition arc discharge momentary interruption device both ends
Pressure and electric current calculate and obtain SF6Arc discharge energy size；Meanwhile being arranged accurately according to the time of delay control circuit module
Calculate SF6Arc discharge number；
S6, breaker is vacuumized by gas detecting system, SF after being discharged by the outlet valve of breaker6Decomposition gas
Body is sent into gas detecting system and carries out quantitative measurment；
S7, arc discharge transient current voltage waveform is shown by energy gauge.
5. the experiment analogy method of gas insulated electric apparatus Arcing fault according to claim 4, feature exist
In: the SF6The calculation formula of arc discharge ENERGY E are as follows: E=∫ u (t) i (t) dt, wherein u (t) and i (t) is arc discharge
The voltage and current at momentary interruption device both ends.
6. the experiment analogy method of gas insulated electric apparatus Arcing fault according to claim 4, feature exist
In: the SF6The purity of new gas is 99%-100%.
7. the experiment analogy method of gas insulated electric apparatus Arcing fault according to claim 4, feature exist
In: the time stood in the S2 is for 24 hours.
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| CN110531238A (en) * | 2019-09-29 | 2019-12-03 | 国网江苏省电力有限公司 | GIS insulation-degradation detecting device, method and GIS insulation degradation diagnostic system |
| CN110940901A (en) * | 2019-12-06 | 2020-03-31 | 西安锐驰电器有限公司 | Method for detecting insulating capability of electrical equipment |
| CN111678982A (en) * | 2020-06-24 | 2020-09-18 | 广东电网有限责任公司电力科学研究院 | Experimental method and device for detecting gas-solid insulation compatibility of substitute gas |
| CN112067954A (en) * | 2020-09-11 | 2020-12-11 | 中国商用飞机有限责任公司 | Arc fault test device and test method |
| CN112433133A (en) * | 2020-11-20 | 2021-03-02 | 国网江苏省电力有限公司电力科学研究院 | Power cable fault simulation device and method using electric arc ignition |
| CN113504426A (en) * | 2021-09-10 | 2021-10-15 | 中国电力科学研究院有限公司 | Device and method for testing inductive discharge anti-interference capability of intelligent equipotential operation equipment |
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