CN207541193U - A kind of polymorphic complex fault analogue test platform of power distribution network - Google Patents
A kind of polymorphic complex fault analogue test platform of power distribution network Download PDFInfo
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Abstract
The utility model discloses a kind of polymorphic complex fault analogue test platform of power distribution network, which includes rack, complex fault simulator, tunable load and Distribution Network Equipment access device；Rack includes overhead line rack, cable rack and aerial cable series-parallel connection rack, overhead line rack includes aerial condutor, cable rack includes cable run, aerial condutor and cable run are respectively connected with the failure simulation device, tunable load, Distribution Network Equipment access device, and neutral earthing devices are equipped on aerial condutor and cable run.The utility model constructs the actual physics model using true transmission line of electricity, controller switching equipment and typical grid structure, real simulation distribution Running State, and reappear a variety of power distribution network complex faults on the actual physics model, improve the accuracy verified to distribution power automation terminal functions of the equipments.
Description
Technical field
The utility model is related to technical field of electric equipment, and in particular to a kind of polymorphic complex fault simulation test of power distribution network
Platform.
Background technology
At present, the performance indicator of distribution terminal mainly carries out test verification by simulating power distribution network typical fault feature, matches
The different test verification method main distinction of electric terminals is that the fault signature analog form of power distribution network is different, at present for distribution
The classification of net fault characteristic signals simulation system is largely divided into three kinds：The first is database type fault characteristic signals emulation testing system
System；Second is low voltage power distribution network simulated testing system in kind；The third is that real time data display (RTDS) simulation is surveyed
Test system；These three methods are all by simulating distribution network failure characteristic signal, carrying out the performance test and verification of distribution terminal.
The existing testing inspection verification technique of above-mentioned distribution terminal equipment, has the following problems：
(1) the manufacture test of distribution terminal equipment at present, mainly by analog quantity generating means, is realized to terminal function
On-site verification and the assessment of terminal fault function are not carried out in test and validation, and lacking first and second equipment, (switch, transformer etc. are
Primary equipment, distribution terminal are secondary device) combined debugging and functional verification.
(2) database type fault characteristic signals emulation test system, existing distribution terminal and fault simulation joint test
System, database type fault characteristic signals emulation test system be limited to the accuracy of the fault characteristic signals in database with
And database volume；
(3) low voltage power distribution network simulated testing system in kind, the characteristic signal under practical distribution network failure is reduced and is weakened,
Certain significant characteristic signals may be lost, can not really simulate practical power distribution network comprehensively；
(4) real time data display (RTDS) simulated testing system, the distribution network simulation of real time data display
Test system can not accurately simulate the situation of true distribution net equipment, can ignore completely due to using digital modeling emulation mode
The influence factors such as transient characterisitics, simultaneously because the limitation of simulation step length, has certain limitations the transient signal frequency range of offer.
Due to any of the above defect, three of the above joint test detection verification system cannot simulate the true of power distribution network completely
Real failure operation state so that distribution terminal functional test verification is respectively provided with certain limitation, this is the dynamic of distribution terminal equipment
The verification for making the functions such as route selection, the positioning of the functions such as strategy, recording, communication, disposition decision and small current grounding fault is buried
Hidden danger.At present, traditional primary equipment, the distribution terminals such as institute's terminal, line feed terminals, line fault register guide of standing are independence
Carry out experimental test and verification, it is impossible to which the operating status and malfunction of the practical Distribution Network Equipment of simulation completely lacks failure item
The Performance Assessment of equipment and a secondary device teamwork logic checking, hide some dangers for for operation of power networks under part；It can not accurately test
Demonstrate,prove new technologies, the performances of new equipment such as distribution terminal, route selection or positioning device, fault self-recovery device, one or two fusion devices.
Utility model content
The technical problems to be solved in the utility model is how to provide a kind of polymorphic complex fault simulation test of power distribution network to put down
Platform is capable of the verification experimental verification test loop of real simulation distribution Running State, is improved to distribution terminal equipment, route selection or positioning
New technologies, the accuracys of new equipment functional verification such as device, fault self-recovery device, one or two fusion devices.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：
A kind of polymorphic complex fault analogue test platform of power distribution network, including rack, complex fault simulator, tunable load
With Distribution Network Equipment access device；The rack includes overhead line rack, cable rack and aerial cable series-parallel connection rack, the frame
Ceases to be busy rack includes aerial condutor, and the cable rack includes cable run, the aerial condutor and cable run respectively with institute
It states failure simulation device, tunable load, Distribution Network Equipment access device and is connected on the aerial condutor and cable run and connect
It is connected to neutral earthing devices；
The neutral earthing devices are used to carry out isolated neutral, neutral-point solid ground, neutral point through low resistance
Switching between ground connection and neutral by arc extinction coil grounding；
The tunable load loads for analog subscriber, convertible loadtype and load combinations mode；
Switchgear, distribute-electricity transformer district, current transformer and voltage transformer, the cable are connected on the aerial condutor
Ring main unit and box type transformer are connected on circuit.
The tunable load includes resistive load, capacitive load and inductive load, the resistive load, capacitive load and sense
Property the equal Independent adjustable of load, and switch on and off can be passed through between the resistive load, capacitive load and inductive load and realized freely
Combination.
The neutral earthing devices by neutral point switching device carry out isolated neutral, neutral-point solid ground,
The switching of Neutral Point Through Low Resistance and neutral by arc extinction coil grounding；The neutral point switching device includes passing through circuit
Disconnecting switch, grounding transformer, arc suppression coil, neutral point low resistance integrating device and the arc-extinguishing resonance-extinguishing device of connection.
The access infrastructure of aerial condutor includes single irradiation structure, end contact structure, more segmentations on the overhead line rack
Appropriateness contact structure, two supply one for structure for one for structure and three.
The cable rack power on cable road access infrastructure include injection formula structure, correlation structure, twinshot structure,
Monocyclic web frame, bicyclic web frame, two supply one for structure for one for structure and three.
The overhead line rack further includes shaft tower and the insulator that is fixed on shaft tower and is connected on aerial condutor
Arrester and overhead type intelligent terminal.
The cable rack further includes the cable connector being connected on cable run and cable-type intelligent terminal.
The utility model has the advantages that：The utility model is constructed to be set using true distribution line, distribution
The actual physics model of standby and typical distribution net grid structure has various lines and a variety of grid structures, can reappear
A variety of power distribution network complex faults realize that a variety of neutral ground forms, various faults type, the flexible of a variety of grid structures turn
It changes, is the full working scope examination of the equipment such as power distribution network terminal, route selection or positioning device, fault self-recovery device, one or two fusion devices
Preferably experimental test verification platform is provided, is capable of the verification experimental verification test loop of real simulation distribution Running State, carries
It is high to the accurate of the functions of the equipments verification such as distribution terminal, route selection or positioning device, fault self-recovery device, one or two fusion devices
Property；Be conducive to carry out online joint test under the conditions of complex fault of aerial condutor or cable run new distribution terminal with
The quality of Performance Assessment verification, General Promotion overhead line distribution terminal or cable-type distribution terminal；Conducive to the polymorphic complexity of power distribution network
The acquisition of fault data conducive to the lookup and extraction of novel fault characteristic quantity, and is conducive to new distribution terminal protection algorithm, threshold
Value setting, the verification of action logic strategy, convenient for the research and development and application of the equipment such as new distribution terminal.
Description of the drawings
Fig. 1 is the structure diagram of the polymorphic complex fault analogue test platform of power distribution network of the utility model；
Fig. 2 is the line assumption diagram of the polymorphic complex fault analogue test platform of power distribution network of the utility model；
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
As depicted in figs. 1 and 2, the polymorphic complex fault analogue test platform of a kind of power distribution network, including rack, complex fault mould
Intend device, tunable load and Distribution Network Equipment access device；Rack includes overhead line rack, cable rack and aerial cable series-parallel connection
Rack, overhead line rack include aerial condutor and the switchgear, distribute-electricity transformer district, the current transformer that are connected on aerial condutor
And voltage transformer, cable rack include cable run and the ring main unit and box type transformer that are connected on cable run, frame
Hollow wire is connected respectively with failure simulation device, tunable load, Distribution Network Equipment access device, cable run respectively with failure
Simulator, tunable load, Distribution Network Equipment access device are connected, and are respectively connected on aerial condutor and cable run different
Neutral earthing devices；
Neutral earthing devices carry out isolated neutral, neutral-point solid ground, neutral point through small for distribution line
Switching between resistance eutral grounding and neutral by arc extinction coil grounding；
Tunable load loads for analog subscriber, convertible loadtype and load combinations mode；
Wherein aerial cable series-parallel connection rack realizes more segmentations appropriateness between aerial condutor and cable run by interconnection switch
Contact.Between interconnection switch is between aerial condutor and cable run.
Distribution Network Equipment access device is used to implement quickly accessing and replacing for new distribution net equipment, realizes to be tested set
It is standby quickly access and distinct device between conversion, convenient for the development of experimental test.
Failure simulation device is used to simulate aerial condutor singlephase earth fault and high current failure and dummycable circuit
Running environment and cable line fault.
Wherein, switchgear, distribute-electricity transformer district, current transformer and voltage transformer, cable are connected on aerial condutor
Road is connected with ring main unit and box type transformer, can more really simulate the operating status of practical power distribution network, improves pair
New technologies, the new equipment function such as distribution terminal equipment, route selection or positioning device, fault self-recovery device, one or two fusion devices are tested
The accuracy of card.
Further, aerial condutor singlephase earth fault includes high resistance earthing fault, low-impedance earthed system failure, metallic earthing
Failure, arc grounding failure or intermittent grounding fault, aerial condutor high current failure include aerial condutor phase fault or three
Mutually short circuit.
Cable line fault includes water-treeing, fever, partial discharge defect, single-phase earthing or cable run phase fault.
Cable run running environment includes high water level environment, high and low temperature environment, high humidity environment, fire-retardant environment and vibration environment
In it is one or more.
Further, neutral earthing devices are direct by neutral point switching device progress isolated neutral, neutral point
The switching of ground connection, Neutral Point Through Low Resistance and neutral by arc extinction coil grounding, i.e., made by neutral point switching device
It obtains neutral earthing devices and carries out isolated neutral, neutral-point solid ground, Neutral Point Through Low Resistance or neutral point warp
Grounding through arc；Neutral point switching device include by the disconnecting switch of connection, grounding transformer, arc suppression coil, in
Property point low resistance integrating device and arc-extinguishing resonance-extinguishing device；Neutral point switching device can realize neutral point not by switching on-off
Flexible conversion between ground connection, neutral-point solid ground, Neutral Point Through Low Resistance and neutral by arc extinction coil grounding.
Further, tunable load mainly realizes load simulation, and RLC Parameter adjustables being capable of the change of combination failure form demand
Change loadtype and combination.Tunable load is configured with multiple customer charges, and customer charge is using programmable RLC simulations dress
It puts, capacity is formulated according to the 50% of transformer capacity, has self-shield ability.
Tunable load includes resistive load, capacitive load and inductive load, and resistive load, capacitive load and inductive load are equal
Independent adjustable；And it can be realized and be freely combined by switch on and off between resistive load, capacitive load and inductive load.
The active power of tunable load device, reactive power and the equal split-phase of power factor are adjustable.
Tunable load device can in different times be put according to the part throttle characteristics or load prediction curve being previously set place into
Row split-phase fluctuates.
Tunable load device can switching single-phase, two-phase or three-phase load, to simulate power distribution network three-phase load unbalance state.
Switching mode is using automatic remote control or control manually.
The access infrastructure of aerial condutor includes single irradiation structure, end contact structure, more segmentation appropriateness on overhead line rack
Contact structure, two supply one for structure for one for structure and three；Single irradiation structure, end contact structure, more segmentation appropriateness contact knots
Structure, two for one for structure and three for one for can be realized between structure by switch on and off or distributing automation apparatus conversion and
Realize the load transfer after line fault.
Overhead line rack further includes shaft tower and the insulator that is fixed on shaft tower and is connected to lightning-arrest on aerial condutor
Device and overhead type intelligent terminal, aerial condutor are powered by overhead line power supply.
Aerial condutor includes insulated conductor and bare conductor.
The overhead type intelligent terminal of overhead line rack is line feed terminals (FTU), distribution transformer terminals (TTU), institute's terminal (DTU) of standing
Or fault detector.Overhead type intelligent terminal is for detecting failure, and be concurrently out of order signal, so as to which break-make occurs for control circuit,
Isolated fault point, restores electricity.
The tower head of shaft tower includes composite insulation cross arm, iron cross arm and porcelain insulator cross-arm, and shaft tower includes tangent tower and strain insulator
Tower, conducting wire include insulated conductor and bare conductor.
Equipment includes switch, voltage/current mutual inductor, arrester, integrated distribute-electricity transformer district, line feed terminals on the column of shaft tower
FTU, distribution transformer terminals TTU and fault detector.Specifically, as shown in Fig. 2, by taking 10kV voltage class as an example, aerial condutor is set
Having two busbares (JK busbares I and JK busbares II), five aerial condutors, (wherein four are feeder line JKA, JKB, JKC, JKD, one
For uninterrupted operation experiment special circuit JKE), two-way overhead line power supply (power supply 3 and power supply 4), covering five kinds of grid structures
(single irradiation structure, end contact structure, mostly segmentation appropriateness contact structure, two supply one for structure for one for structure and three)；
Overhead line rack is provided with three classes electric pole (cement pole, steel pipe pole and coupled pole), and (compound inslation is horizontal for three kinds of tower heads
Load, iron cross arm and porcelain insulator cross-arm), two kinds of shaft tower types (tangent tower and anchor support), two kinds of aerial condutor types (lead by insulation
Line and bare conductor).
The access infrastructure that cable rack powers on cable road includes injection formula structure, correlation structure, twinshot structure, monocyclic
Web frame, bicyclic web frame, two supply one for structure for one for structure and three.
Cable rack further includes the cable connector being connected on cable and cable-type intelligent terminal, and cable run is by cable
Line power supply (power supply 1 and power supply 2) is powered.Cable-type intelligent terminal is for detecting failure, and be concurrently out of order signal, so as to control line
Break-make occurs for road, and isolated fault point restores electricity.
The cable-type intelligent terminal of cable rack is station institute's terminal (DTU), distribution transformer terminals (TTU) or fault detector.
Further, cable connector is for Contraction Type Electric Cable Attachment in Crane Ore Group, thermal shrinkage type cable connector or around packet mode cable connector, cable
Terminal is cold-contraction type cable termination, thermal shrinkage type cable termination or elbow-type head cable termination, and the core of cable run is three-core structure
Or single structure.
The laying channel of cable rack includes tunnel, raceway groove and comb.
Specifically, as shown in Fig. 2, by taking 10kV voltage class as an example, cable run is provided with four cable runs, two sections of mothers
Line, two-way cable power supply (power supply 1 and power supply 2) cover seven kinds of cable grid structures (injection formula, correlation, twinshot, lists
Looped network, dual-ring network, two are for one standby, three standby for one)；Two busbares (DL busbares I and DL busbares II), three classes is set to be laid with channel
(tunnel, raceway groove and comb), three classes connector (cold-contraction type, thermal shrinkage type and around packet mode), three Terminal Types (cold-contraction type, thermal shrinkage type and elbow
Type head), two kinds of cable cores (three cores and single structure).
Wherein the aerial cable series-parallel connection rack of power distribution network is realized more by the interconnection switch between aerial condutor and cable run
Segmentation appropriateness contact.
Wherein, power supply 1 shown in Fig. 2, power supply 2 and power supply 3, power supply 4 provide 10kV power supplys, figure by box-type substation
Switching switch station owner is got in touch in 2 will realize the conversion of different feeder line modes.
A kind of test method of the polymorphic complex fault analogue test platform of power distribution network, includes the following steps：
1) equipment to be tested is accessed by Distribution Network Equipment access device；Equipment to be tested is distribution terminal to be tested；
2) tunable load is adjusted according to experiment demand, and according to experiment demand selection rack form and passes through neutral point
Earthing or grounding means selects neutral grounding mode；
Wherein, tunable load can combination failure form demand transformation load type and combination, tunable load include
Resistive load, capacitive load and inductive load, resistive load, capacitive load and the equal Independent adjustable of inductive load；And resistive load,
It can be realized and be freely combined by switch on and off between capacitive load and inductive load；
The active power of tunable load device, reactive power and the equal split-phase of power factor are adjustable；Tunable load device may be used also
Switching single-phase, two-phase or three-phase load are to simulate power distribution network three-phase load unbalance state；
Rack form includes overhead line rack, cable rack and aerial cable series-parallel connection rack, wherein cable rack and is layed in
In tunnel, raceway groove or comb；
Neutral earthing devices carry out the selection of neutral grounding mode, neutral ground side by neutral point switching device
Formula includes isolated neutral, neutral-point solid ground, Neutral Point Through Low Resistance and neutral by arc extinction coil grounding；In
Property point switching device include integrating dress by the disconnecting switch of connection, grounding transformer, arc suppression coil, neutral point low resistance
It puts and arc-extinguishing resonance-extinguishing device, neutral earthing devices can be made to carry out isolated neutral, neutral point by neutral point switching device
It is directly grounded, Neutral Point Through Low Resistance or neutral by arc extinction coil grounding.
3) complex fault simulator simulated failure is utilized；
Complex fault simulator is used to simulate aerial condutor singlephase earth fault and high current failure and dummycable
Line operation environment and cable line fault；
Aerial condutor singlephase earth fault includes high resistance earthing fault, low-impedance earthed system failure, metallic earthing failure, arc light
Earth fault or intermittent grounding fault, the high current failure include aerial condutor phase fault or three-phase shortcircuit；
Cable run running environment includes high water level environment, high and low temperature environment, high humidity environment, fire-retardant environment and vibration environment
In it is one or more；
Cable line fault includes water-treeing, fever, partial discharge defect, single-phase earthing or cable run phase fault.
4) state change of equipment to be tested when test failure occurs, to verify the quality of equipment to be tested；
By above-mentioned test method, one-phase earthing failure in electric distribution network experiment, phase fault and three phase short circuit fault can be carried out
Experiment, cable faults of distribution network location test, cable faults of distribution network monitoring test, the examination of power distribution network cable special operating environment
Experiment, the verification of power distribution network novel fault disposal plant Performance Assessment, power distribution network novel device full working scope post-installation review and verification.
The utility model by building the grid structure of typical distribution net, using true distribution line (cable, overhead line,
Joint line) and controller switching equipment set up, belong to actual physics model, transient characteristic signal is than digital real-time emulation software
More true and accurate, it is more rationally credible to the verification of Intelligent power distribution terminal functions of the equipments.It should be understood that circuit model here
Build can not possibly complete real simulation, can by the transient state of lumped parameter physical analogy and actual track simulate be combined come reality
It is existing, for example, in the case where transmission line length is longer, if using the transmission line of electricity of physical length completely, on the one hand can increase
On the other hand addition sheet and floor space are also not easy to the structure and test operation of test platform, concentration ginseng may be used at this time
Analog line is counted to simulate the actual track of different length, specifically, two true molded line roads and two can be used in aerial condutor
The form that true molded line road is combined with lumped parameter analog line, likewise, in cable run using two true molded line roads and
The form that two true molded line roads are combined with lumped parameter analog line can actually take up an area same in reduction in this way
When real simulation reproduce physical length circuit.Wherein lumped parameter analog line mainly by electric current, inductance and resistance these
The actual track changed to simulate different length of parameter.The utility model can simulate the operation of practical Distribution Network Equipment completely
State and malfunction, the verification experimental verification test loop of real simulation distribution Running State；
The utility model is the polymorphic complex fault analogue test platform of power distribution network, has constructed true distribution net work structure,
The practical distribution Running State of true reappearance carries out complex fault simulation on the basis of the power distribution network, can truly reproduce
A situation arises in practical distribution line for various failures, improves to distribution terminal equipment, route selection or positioning device, failure certainly
More new technologies, the accuracy of new equipment functional verification such as device, one or two fusion devices.
The utility model constructs distribution line actual physics model, has various lines and a variety of grid structures, can
Reappear a variety of power distribution network complex faults, realize a variety of grounding forms, various faults type, the flexible conversion of a variety of grid structures,
Preferably experimental test verification platform is provided for the examination of power distribution network terminal full working scope, it being capable of real simulation distribution Running State
Verification experimental verification test loop, the carry out Performance Assessment of equipment and a secondary device teamwork can be patrolled in failure conditions
Volume verification is improved to new technologies, the new equipment function such as, route selection or positioning device, fault self-recovery device, one or two fusion devices
The accuracy of verification；Be conducive to carry out aerial condutor or cable run new distribution terminal is online under the conditions of complex fault
Joint test is verified with Performance Assessment, and the action policy of distribution terminal equipment is better achieved, recording, communication, disposes decision, is small
The verification of the functions such as the route selection or positioning of current earthing failure, General Promotion overhead line distribution terminal or cable-type distribution terminal
Quality；Conducive to the acquisition of the polymorphic complex fault data of power distribution network, conducive to the lookup and extraction of novel fault characteristic quantity, and be conducive to
New distribution terminal protection algorithm, threshold value setting, action logic strategy verification, convenient for new distribution terminal research and development with should
With.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain it is without being limited thereto.The equivalent substitute or change that those skilled in the art are made on the basis of the utility model
It changes, is within the protection scope of the utility model.The scope of protection of the utility model is subject to claims.
Claims (8)
1. a kind of polymorphic complex fault analogue test platform of power distribution network, it is characterized in that, including rack, complex fault simulator,
Tunable load and Distribution Network Equipment access device；The rack includes overhead line rack, cable rack and aerial cable series-parallel connection net
Frame, the overhead line rack include aerial condutor and the switchgear, distribute-electricity transformer district, the Current Mutual Inductance that are connected on aerial condutor
Device and voltage transformer, the cable rack include cable run, the aerial condutor and cable run respectively with the failure
Simulator, tunable load, Distribution Network Equipment access device are connected, in being respectively connected on the aerial condutor and cable run
Property point earthing or grounding means；
The neutral earthing devices are used to carry out isolated neutral, neutral-point solid ground, Neutral Point Through Low Resistance
Switching between neutral by arc extinction coil grounding；
The tunable load loads for analog subscriber, convertible loadtype and load combinations mode.
2. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, on the aerial condutor
Switchgear, distribute-electricity transformer district, current transformer and voltage transformer are connected with, ring main unit and case are connected on the cable run
Formula transformer.
3. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, the tunable load packet
Include resistive load, capacitive load and inductive load, the resistive load, capacitive load and the equal Independent adjustable of inductive load, and institute
Independent assortment can be realized between resistive load, capacitive load and inductive load by switch on and off by stating.
4. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, the neutral ground
Device by neutral point switching device carry out isolated neutral, neutral-point solid ground, Neutral Point Through Low Resistance and in
Property switching of the point through grounding through arc；The neutral point switching device includes the disconnecting switch by connection, ground connection becomes
Depressor, arc suppression coil, neutral point low resistance integrating device and arc-extinguishing resonance-extinguishing device.
5. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, the overhead line rack
The access infrastructure of upper aerial condutor includes single irradiation structure, end contact structure, more segmentation appropriateness contact structures, two for a standby knot
Structure and three supplies one for structure.
6. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, on the cable rack
The access infrastructure of cable run include injection formula structure, correlation structure, twinshot structure, monocyclic web frame, bicyclic web frame,
Two supply one for structure for one for structure and three.
7. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, the overhead line rack
Further include shaft tower and the insulator being fixed on shaft tower and the arrester and overhead type that are connected on aerial condutor intelligence eventually
End.
8. the polymorphic complex fault analogue test platform of power distribution network as described in claim 1, it is characterized in that, the cable rack is also
Including the cable connector being connected on cable run and cable-type intelligent terminal.
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Cited By (5)
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| CN109669103A (en) * | 2017-10-13 | 2019-04-23 | 中国电力科学研究院 | A kind of polymorphic complex fault analogue test platform of true type power distribution network and test method |
| CN110045213A (en) * | 2019-05-23 | 2019-07-23 | 天地（常州）自动化股份有限公司 | 6kV, 10kV high-- voltage leakage protective pilot system and test method |
| CN112285492A (en) * | 2020-12-31 | 2021-01-29 | 中国电力科学研究院有限公司 | Power distribution network ground fault test system and method |
| CN113759199A (en) * | 2021-09-26 | 2021-12-07 | 淮安苏达电气有限公司 | Testing device and testing method for primary and secondary fusion equipment acting on power distribution network |
| CN114200244A (en) * | 2022-02-17 | 2022-03-18 | 北京芯可鉴科技有限公司 | Environmental stress test system for electric power secondary equipment |
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2017
- 2017-10-13 CN CN201721323746.1U patent/CN207541193U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669103A (en) * | 2017-10-13 | 2019-04-23 | 中国电力科学研究院 | A kind of polymorphic complex fault analogue test platform of true type power distribution network and test method |
| CN109669103B (en) * | 2017-10-13 | 2024-03-12 | 中国电力科学研究院 | Real type power distribution network multi-state complex fault simulation test platform and test method |
| CN110045213A (en) * | 2019-05-23 | 2019-07-23 | 天地（常州）自动化股份有限公司 | 6kV, 10kV high-- voltage leakage protective pilot system and test method |
| CN112285492A (en) * | 2020-12-31 | 2021-01-29 | 中国电力科学研究院有限公司 | Power distribution network ground fault test system and method |
| CN112285492B (en) * | 2020-12-31 | 2021-04-13 | 中国电力科学研究院有限公司 | Power distribution network ground fault test system and method |
| CN113759199A (en) * | 2021-09-26 | 2021-12-07 | 淮安苏达电气有限公司 | Testing device and testing method for primary and secondary fusion equipment acting on power distribution network |
| CN114200244A (en) * | 2022-02-17 | 2022-03-18 | 北京芯可鉴科技有限公司 | Environmental stress test system for electric power secondary equipment |
| CN114200244B (en) * | 2022-02-17 | 2022-04-29 | 北京芯可鉴科技有限公司 | Environmental stress test system for electric power secondary equipment |
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