CN209624731U - One or two fusion panel switches integration transmission agency detection systems - Google Patents
One or two fusion panel switches integration transmission agency detection systems Download PDFInfo
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- CN209624731U CN209624731U CN201822243779.6U CN201822243779U CN209624731U CN 209624731 U CN209624731 U CN 209624731U CN 201822243779 U CN201822243779 U CN 201822243779U CN 209624731 U CN209624731 U CN 209624731U
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- 238000004088 simulation Methods 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
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- 238000004382 potting Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses one or two fusion panel switches integration transmission agency detection systems, monitoring host computer, control circuit including sequential connection, simulation cut-off circuit and one or two fusion devices, can cut-off, be remotely controlled, remote signalling, telemetry function test to distribution switchgear progress capacity after one or two fusions.Control circuit cut-offs circuit with simulation and is connected, and controls simulation by cut-offfing for control divide-shut brake breaker and cut-offs the generation of high current and high voltage in circuit.The system is cut-off by the cooperation completion capacity of one or two fusion breakers and synthesis loop and three distant functional tests are tested, the control of breaker is issued by monitoring host computer, fusion device receives and executes to form linkage, and distribution power automation terminal detection circuit-breaker status simultaneously returns to monitoring host computer composition closed loop.It carries out capacity by the system to cut-off and three distant Function detections, it can be determined that the complete machine operational reliability and stability of one or two fusion panel switches.
Description
Technical field
The utility model relates to technical field of electricity more particularly to one or two fusion panel switches integration transmission agency inspections
Examining system.
Background technique
All the time, one secondary device of panel switches is to separate design, processing and manufacture, this mode to not only result in
It needs to carry out a large amount of Interface Matchings after the assembling of one secondary device and wiring works, and many functions are not due to carrying out integrated design
The case where cannot achieve, or even interfering with each other greatly reduces panel switches reliability and operation stability.
Mainstream panel switches testing agency, the country only has at present carries out independently for single primary equipment or secondary device
The ability of test, institute's inspection project can not embody the complete machine operational reliability and stability of one or two fusion panel switches, it is seen that
Panel switches one or two times fusion integrated technologies are the developing direction of panel switches detection technique.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide one or two fusion panel switches one
Change transmission agency detection system, it is intended to solve the prior art and only have for single primary equipment or the independent survey of secondary device progress
The problem of ability of examination, institute's inspection project can not embody the complete machine operational reliability and stability of one or two fusion panel switches.
The purpose of this utility model is implemented with the following technical solutions:
A kind of one or two fusion panel switches integration transmission agency detection systems, the monitoring host computer including sequential connection
(1), circuit (3) and one or two fusion devices are cut-off in control circuit (2), simulation.
On the basis of the above embodiments, it is preferred that one or two fusion devices include that breaker (4), distribution are automatic
Change terminal (5), electromagnetic current transducer (6), electronic current sensor (7), electromagnetic potential transformer, electronic voltage sensing
Device (8), high-voltage probe (9), signal transmission and one of conversion equipment (10) or a variety of.
On the basis of the above embodiments, it is preferred that control circuit (2) cut-offs circuit by breaker (4) control simulation
(3) generation of high current and high voltage in.
On the basis of the above embodiments, it is preferred that control circuit (2) is also connect with signal converting transmission device (10),
Control circuit (2) sends synchronization signal to one or two fusion devices by signal converting transmission device (10), while will monitor
Information data transmission to monitoring host computer (1).
On the basis of the above embodiments, it is preferred that the current state of breaker (4) is also passed through letter by control circuit (2)
Number converting transmission device (10) is transferred to monitoring host computer (1).
On the basis of above-mentioned any embodiment, it is preferred that distribution power automation terminal (5) is also transmitted and converted by signal
Device (10) is connected to monitoring host computer (1).
On the basis of the above embodiments, it is preferred that high-voltage probe (9), electronic current sensor (7) are respectively used to acquire
Voltage signal, current signal in capacity breaking test, and compared with the communication data of distribution power automation terminal (5).
On the basis of above-mentioned any embodiment, it is preferred that the input module switch of the control circuit (2) uses photoelectricity
Isolation technology is designed, and external circuit and control circuit (2) is made to carry out electrical isolation by optocoupler.
On the basis of above-mentioned any embodiment, it is preferred that simulation cut-off circuit (3) for build capacity cut-off with it is three distant
Function test platform；
The true interrupting process of breaker in circuit (3) simulating grid is cut-off in the simulation, and one or two fusions are set
It is standby to be connected in test loop.
On the basis of the above embodiments, it is preferred that it is described simulation cut-off circuit (3) include CCB combined floodgate breaker (11),
ACB auxiliary circuit breaker (12), R0 frequency modulation resistance (13), C0 frequency modulation capacitor (14), Rogows ki coil (15), RVDT resistance point
Depressor (16), RCVDT RC divider (17)；
Wherein, CCB combined floodgate breaker (11), ACB auxiliary circuit breaker (12), R0 frequency modulation resistance (13), C0 frequency modulation capacitor
(14), Rogows ki coil (15), RVDT resitstance voltage divider (16) are linked in sequence；C0 frequency modulation capacitor (14) also with RCVDT capacitance-resistance
Divider (17) connection；
RVDT resitstance voltage divider (16) participates in composition current source, and current source is for generating high current；RCVDT RC divider
(17) composition voltage source is participated in, voltage source is for generating high voltage；Rogows ki coil is for measuring major loop drop-out current.
Compared with prior art, the utility model has the beneficial effects that:
The utility model discloses one or two fusion panel switches integration transmission agency detection systems, set for one or two times
The standby fused transmission agency detection of panel switches can carry out capacity to distribution switchgear after one or two fusions and cut-off, be distant
Control, remote signalling, telemetry function test.
Detectable three distant function (i.e. remote control, remote signalling, telemetry function) of the system includes: (1) remote control division brake test；
(2) remote control operation record check；(3) remote signalling of divide-shut brake location status is tested；(4) power supply status remote signalling is tested；(5) energy storage state
Remote signalling test；(6) telemetering three-phase current, zero-sequence current, line voltage, residual voltage, active power, reactive power.
Control circuit in the system is cut-off circuit with simulation and is connect, and cut-offs circuit by the simulation of divide-shut brake breaker control
The generation of middle high current and high voltage, control circuit, which is that one or two fusion device transmissions are synchronous with signal converting transmission device, to be believed
Number, while by the information data monitored and breaker current state, it is transferred to monitoring host computer.The switch of control circuit inputs mould
Block can carry out innovative design using photoelectric isolation technology, make external circuit and control loop by optocoupler progress electrically every
From, avoid external circuit electromagnetic interference introduce controller, improve control reliability.
It includes current source and voltage source that simulation, which cut-offs circuit mainly, and the two is respectively used to generate high current and high voltage.In
Simulation is cut-off in circuit, and R0, C0 adjust the amplitude and frequency of transient recovery voltage TRV jointly.The both ends A, B in circuit are cut-off in simulation
It is connected to breaker, before breaker actuation, investment current source generates power current, the practical electricity of the route for mimic-disconnecting switch
Stream, cut-offs about 0.5ms before zero passage, and investment voltage source generates TRV and is applied to fracture both ends, route when analog switch cabinet cuts off electric current
The TRV of generation, test process meet circuit-breaker synthesizing test equivalence principle.
The utility model is cut-off circuit and built capacity and cut-off by simulation cut-offs circuit with three distant function test platforms, simulation
For the true interrupting process of breaker in simulating grid, one or two fusion devices are connected in test loop, distribution is automatic
Change terminal and monitoring host computer is connected to by signal transmission and conversion equipment, control circuit cut-offs circuit and to one for controlling simulation
Secondary fusion device sends synchronization signal, and the high-voltage probe, electronic current sensor in hookup are cut-off for acquiring capacity
Voltage, current signal in test, and the communication data of the distribution power automation terminal carried with breaker compares.
The utility model by the cooperation completion capacity that one or two fusion breakers and simulation cut-off circuit cut-off with it is three distant
Functional test test, the control of breaker are issued by monitoring host computer, and fusion device receives and executes to form transmission, power distribution automation
Terminal detection circuit-breaker status simultaneously returns to monitoring host computer composition closed loop, ensure that control reliability and convenience.The system can be with
System test is carried out to one or two fused power distribution network switchgears, circuit progress capacity is cut-off by high-potting simulation and is opened
Disconnected and three distant Function detections, judge the complete machine operational reliability and stability of one or two fusion panel switches according to testing result.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 shows a kind of one or two fusions panel switches integration transmission agency inspection provided by the embodiment of the utility model
The structural schematic diagram of examining system；
Fig. 2 shows a kind of simulate provided by the embodiment of the utility model to cut-off the circuit diagram in circuit.
In figure, 1, monitoring host computer；2, control circuit；Circuit 3 is cut-off in simulation；4, breaker；5, distribution power automation terminal；6,
Electromagnetic current transducer；7, electronic current sensor；8, electronic voltage sensor；9, high-voltage probe；10, signal transmits and turns
Changing device；11, CCB combined floodgate breaker；12, ACB auxiliary circuit breaker；13, R0 frequency modulation resistance；14, C0 frequency modulation capacitor；15,
Rogows ki coil；16, RVDT resitstance voltage divider；17, RCVDT RC divider.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Figure 1, the utility model embodiment provides a kind of one or two fusion panel switches integration transmission agencies
Detection system, monitoring host computer 1, control circuit 2, simulation including sequential connection cut-off circuit 3 and one or two time fusion device.
Preferably, one or two fusion devices may include that breaker 4, distribution power automation terminal 5, electromagnetic type electric current are mutual
Sensor 6, electronic current sensor 7, electromagnetic potential transformer, electronic voltage sensor 8, high-voltage probe 9, signal transmit and turn
One of changing device 10 is a variety of.The advantage of doing so is that one two fusions of the utility model embodiment to can be detected
Equipment without limitation, is widely used, and practicability is high.
Preferably, control circuit 2 cut-offs the generation of high current and high voltage in circuit 3 by the control simulation of breaker 4.
Preferably, control circuit 2 is also connect with signal converting transmission device 10, and control circuit 2 passes through signal converting transmission
Device 10 sends synchronization signals to one or two fusion devices, while by the information data transmission monitored to monitoring host computer 1.In this way
The benefit done is to realize the communication between control circuit 2 and one or two time fusion device, monitoring host computer 1.
Preferably, the current state of breaker 4 is also transferred to monitoring by signal converting transmission device 10 by control circuit 2
Host 1.
Preferably, distribution power automation terminal 5 is also connected to monitoring host computer 1 with conversion equipment 10 by signal transmission.In this way
The benefit done is to realize the communication between distribution power automation terminal 5 and monitoring host computer 1.
Preferably, high-voltage probe 9, electronic current sensor 7 be respectively used to acquisition capacity breaking test in voltage signal,
Current signal, and compared with the communication data of distribution power automation terminal 5.The advantage of doing so is that one or two fusions can be set
The signal of standby acquisition and the communication data of distribution power automation terminal 5 compare.
Preferably, the input module switch of the control circuit 2 is designed using photoelectric isolation technology, makes external circuit
Electrical isolation is carried out by optocoupler with control circuit 2.The advantage of doing so is that avoiding the electromagnetic interference of external circuit introducing control
Device improves the reliability of control.
Preferably, simulation is cut-off circuit 3 and is cut-off and three distant function test platforms for building capacity；The simulation is cut-off back
One or two fusion devices are connected in test loop by the true interrupting process of breaker in 3 simulating grid of road.
As shown in Figure 2, it is preferred that it may include CCB combined floodgate breaker 11, ACB backup shutdoun that circuit 3 is cut-off in the simulation
Device 12, R0 frequency modulation resistance 13, C0 frequency modulation capacitor 14, Rogows ki coil 15, RVDT resitstance voltage divider 16, RCVDT resistive-capacitive voltage divider
Device 17；Wherein, CCB combined floodgate breaker 11, ACB auxiliary circuit breaker 12, R0 frequency modulation resistance 13, C0 frequency modulation capacitor 14, Rogows ki
Coil 15, RVDT resitstance voltage divider 16 are linked in sequence；C0 frequency modulation capacitor 14 is also connect with RCVDT RC divider 17；
RVDT resitstance voltage divider 16 participates in composition current source, and current source is for generating high current；RCVDT RC divider 17
Composition voltage source is participated in, voltage source is for generating high voltage；Rogows ki coil is for measuring major loop drop-out current.
The utility model embodiment can be used for the fused transmission agency detection of a secondary device panel switches, can be right
One or two times fusion after distribution switchgear carry out capacity cut-off, be remotely controlled, remote signalling, telemetry function test.
Detectable three distant function (i.e. remote control, remote signalling, telemetry function) of the system includes: (1) remote control division brake test；
(2) remote control operation record check；(3) remote signalling of divide-shut brake location status is tested；(4) power supply status remote signalling is tested；(5) energy storage state
Remote signalling test；(6) telemetering three-phase current, zero-sequence current, line voltage, residual voltage, active power, reactive power.
Control circuit in the system is cut-off circuit with simulation and is connect, and cut-offs circuit by the simulation of divide-shut brake breaker control
The generation of middle high current and high voltage, control circuit, which is that one or two fusion device transmissions are synchronous with signal converting transmission device, to be believed
Number, while by the information data monitored and breaker current state, it is transferred to monitoring host computer.The switch of control circuit inputs mould
Block can carry out innovative design using photoelectric isolation technology, make external circuit and control loop by optocoupler progress electrically every
From, avoid external circuit electromagnetic interference introduce controller, improve control reliability.
It includes current source and voltage source that simulation, which cut-offs circuit mainly, and the two is respectively used to generate high current and high voltage.In
Simulation is cut-off in circuit, and R0, C0 adjust the amplitude and frequency of transient recovery voltage TRV jointly.The both ends A, B in circuit are cut-off in simulation
It is connected to breaker, before breaker actuation, investment current source generates power current, the practical electricity of the route for mimic-disconnecting switch
Stream, cut-offs about 0.5ms before zero passage, and investment voltage source generates TRV and is applied to fracture both ends, route when analog switch cabinet cuts off electric current
The TRV of generation, test process meet circuit-breaker synthesizing test equivalence principle.
The utility model embodiment by simulation cut-offs circuit and builds capacity and cut-off to be opened with three distant function test platforms, simulation
One or two fusion devices are connected in test loop, match for the true interrupting process of breaker in simulating grid by disconnected circuit
Electric automation terminal is connected to monitoring host computer by signal transmission and conversion equipment, and control circuit cut-offs circuit for controlling simulation
And synchronization signal is sent to one or two fusion devices, the high-voltage probe, electronic current sensor in hookup hold for acquiring
Voltage, the current signal in breaking test are measured, and the communication data of the distribution power automation terminal carried with breaker compares.
The utility model embodiment is completed capacity by the cooperation that one or two fusion breakers cut-off circuit with simulation and is cut-off
With three distant functional test tests, the control of breaker is issued by monitoring host computer, and fusion device receives and executes to form transmission, distribution
Automatization terminal detection circuit-breaker status simultaneously returns to monitoring host computer composition closed loop, ensure that control reliability and convenience.This is
System can carry out system test to one or two fused power distribution network switchgears, cut-off circuit by high-potting simulation and carry out
Capacity cut-off with three distant Function detections, judge the complete machine operational reliability of one or two fusion panel switches and steady according to testing result
It is qualitative.
The application scenarios of the utility model embodiment may is that
When carrying out transmission agency detection, experimental rig is connected according to Fig. 1, by one or two accurate companies of fusion device
It is connected in hookup, removes earth brace, carry out unloaded transmission breaking test, rated capacity breaking test, capacity of short circuit respectively
Breaking test, simulation, which cut-offs circuit 3 and one or two time and merges the breaker that tie in could complete under actual condition, cut-offs examination
It tests, records the collected data of distribution power automation terminal 5 after the completion of cut-offfing.
When carrying out unloaded transmission breaking test, synchronous divide-shut brake letter is sent to one or two fusion devices by control circuit 2
Number, distribution power automation terminal 5 passes through the divide-shut brake that control operating mechanism controls breaker 4, distribution after receiving divide-shut brake signal
Automatization terminal 5 can acquire the information such as 4 current state of breaker and voltage and current value and pass through signal transmission and conversion equipment 10
It is transferred to monitoring host computer 1.
When carrying out rated capacity breaking test, 3 Fig. 1 capacitor of circuit is cut-off by 2 pairs of control circuit simulations and is charged, root
The capacitance voltage that current source is determined according to drop-out current determines the voltage of voltage source capacitor according to the voltage rating of switch.
The triggering key for pressing control circuit 2 cut-offs the simulation of circuit 3 by signal transmission through fiber control simulation and actually opens
It is disconnected, and synchronization signal is sent simultaneously to one or two fusion devices, row control, the mesh of synchronization signal are put by the way that distant control function is split
Be one or two fusions switch cut-off at the time of suitable, interrupting process neutralization cut-off after the completion of one or two fusion devices
It answers working properly.
It checks that breaker 4 cut-offs state by distribution power automation terminal 5, is checked at monitoring host computer end 1 by remote signaling function
Voltage and current value when 4 state of breaker and breaker 4 act.
In conclusion the system is cut-off circuit 3 and is cooperated by monitoring host computer 1, control circuit 2, simulation, it can be to one
The capacity of distribution switchgear cut-offs and is remotely controlled after secondary fusion, remote signalling, telemetry function are tested, to judge to melt for one or two times
Close panel switches complete machine operational reliability and stability.
The system can use the P6139B probe acquisition current divider voltage signal that bandwidth is 500MHz, dry to weaken radio frequency
The influence of signal and stray parasitic signal to measurement circuit is disturbed, improves the accuracy of measurement result, all acquisition signals pass through
Fiber isolation sampling system enters DPO4054 four-way 500MHz bandwidth digital oscillograph.
The utility model is from using in purpose, and in efficiency, the viewpoints such as progressive and novelty are illustrated, and what is had is practical
Progressive, oneself meets the function that Patent Law emphasized and promotes and using important document, more than the utility model explanation and attached drawing, only
The preferred embodiment of the utility model and oneself, the utility model is not limited to this, therefore, it is all with the utility model structure
It makes, device, it is wait the approximations, identical such as levy, i.e., all according to equivalent replacement made by the utility model patent application range or modification etc.,
Within the scope of the patent application protection that the utility model should all be belonged to.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.Although the utility model has been carried out a degree of description, it will be apparent that, in the essence for not departing from the utility model
Under conditions of mind and range, the appropriate variation of each condition can be carried out.It is appreciated that the utility model is not limited to the embodiment party
Case, and it is attributed to the scope of the claims comprising the equivalent replacement of each factor.It will be apparent to those skilled in the art that
Various other corresponding changes and deformation can be made according to the above description of the technical scheme and ideas, and all these
Change and deformation all should belong within the protection scope of the utility model claims.
Claims (10)
1. a kind of one or two fusion panel switches integration transmission agency detection systems, which is characterized in that including sequential connection
Circuit (3) and one or two fusion devices are cut-off in monitoring host computer (1), control circuit (2), simulation.
2. one or two fusions panel switches integration transmission agency detection system according to claim 1, which is characterized in that
One or two fusion devices include breaker (4), distribution power automation terminal (5), electromagnetic current transducer (6), electronics electricity
Flow sensor (7), electromagnetic potential transformer, electronic voltage sensor (8), high-voltage probe (9), signal transmission and conversion equipment
One of (10) or it is a variety of.
3. one or two fusions panel switches integration transmission agency detection system according to claim 2, which is characterized in that
Control circuit (2) cut-offs the generation of high current and high voltage in circuit (3) by breaker (4) control simulation.
4. one or two fusions panel switches integration transmission agency detection system according to claim 3, which is characterized in that
Control circuit (2) is also transmitted with signal and is connect with conversion equipment (10), and control circuit (2) is transmitted by signal and conversion equipment
(10) synchronization signals are sent to one or two fusion devices, while by the information data transmission monitored to monitoring host computer (1).
5. one or two fusions panel switches integration transmission agency detection system according to claim 4, which is characterized in that
The current state of breaker (4) is also transferred to monitoring host computer with conversion equipment (10) by signal transmission by control circuit (2)
(1)。
6. according to described in any item one or the two fusions panel switches integration transmission agency detection systems of claim 2-5,
It is characterized in that, distribution power automation terminal (5) is also connected to monitoring host computer (1) with conversion equipment (10) by signal transmission.
7. one or two fusions panel switches integration transmission agency detection system according to claim 6, which is characterized in that
High-voltage probe (9), electronic current sensor (7) are respectively used to voltage signal, current signal in acquisition capacity breaking test, and
It is compared with the communication data of distribution power automation terminal (5).
8. one or two fusions panel switches integration transmission agency detection system according to claim 1, which is characterized in that
The input module switch of the control circuit (2) is designed using photoelectric isolation technology, makes external circuit and control circuit (2)
Electrical isolation is carried out by optocoupler.
9. one or two fusions panel switches integration transmission agency detection system according to claim 1, which is characterized in that
Simulation is cut-off circuit (3) and is cut-off and three distant function test platforms for building capacity；
The true interrupting process of breaker in circuit (3) simulating grid is cut-off in the simulation, and one or two fusion devices are connected
It is connected in test loop.
10. one or two fusions panel switches integration transmission agency detection system according to claim 9, feature exist
In, it is described simulation cut-off circuit (3) include CCB combined floodgate breaker (11), ACB auxiliary circuit breaker (12), R0 frequency modulation resistance (13),
C0 frequency modulation capacitor (14), Rogows ki coil (15), RVDT resitstance voltage divider (16), RCVDT RC divider (17)；
Wherein, CCB combined floodgate breaker (11), ACB auxiliary circuit breaker (12), R0 frequency modulation resistance (13), C0 frequency modulation capacitor (14),
Rogows ki coil (15), RVDT resitstance voltage divider (16) are linked in sequence；C0 frequency modulation capacitor (14) also with RCVDT resistive-capacitive voltage divider
Device (17) connection；
RVDT resitstance voltage divider (16) participates in composition current source, and current source is for generating high current；RCVDT RC divider (17)
Composition voltage source is participated in, voltage source is for generating high voltage；Rogows ki coil is for measuring major loop drop-out current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822243779.6U CN209624731U (en) | 2018-12-28 | 2018-12-28 | One or two fusion panel switches integration transmission agency detection systems |
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| CN201822243779.6U CN209624731U (en) | 2018-12-28 | 2018-12-28 | One or two fusion panel switches integration transmission agency detection systems |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112379252A (en) * | 2020-11-03 | 2021-02-19 | 南方电网数字电网研究院有限公司 | Primary and secondary fusion pole switch test system |
| WO2021147281A1 (en) * | 2020-01-20 | 2021-07-29 | 中国电力科学研究院有限公司 | Device and method for performing quantitative evaluation testing of power distribution switch |
| 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 |
| CN114184950A (en) * | 2021-12-08 | 2022-03-15 | 国网四川省电力公司电力科学研究院 | Voltage and current acquisition assembly based on distribution automation fusion switch |
| CN115327360A (en) * | 2022-08-09 | 2022-11-11 | 北京南凯自动化系统工程有限公司 | Intelligent testing method and system for direct control device of isolating switch of railway contact network |
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2018
- 2018-12-28 CN CN201822243779.6U patent/CN209624731U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021147281A1 (en) * | 2020-01-20 | 2021-07-29 | 中国电力科学研究院有限公司 | Device and method for performing quantitative evaluation testing of power distribution switch |
| CN112379252A (en) * | 2020-11-03 | 2021-02-19 | 南方电网数字电网研究院有限公司 | Primary and secondary fusion pole switch test system |
| CN112379252B (en) * | 2020-11-03 | 2021-07-06 | 南方电网数字电网研究院有限公司 | Primary and secondary fusion pole switch test system |
| 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 |
| CN114184950A (en) * | 2021-12-08 | 2022-03-15 | 国网四川省电力公司电力科学研究院 | Voltage and current acquisition assembly based on distribution automation fusion switch |
| CN115327360A (en) * | 2022-08-09 | 2022-11-11 | 北京南凯自动化系统工程有限公司 | Intelligent testing method and system for direct control device of isolating switch of railway contact network |
| CN115327360B (en) * | 2022-08-09 | 2024-06-07 | 北京南凯自动化系统工程有限公司 | Intelligent testing method and system for direct control device of railway contact net isolating switch |
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