CN206505107U - Voltage x current is double to apply power-supply system - Google Patents
Voltage x current is double to apply power-supply system Download PDFInfo
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- CN206505107U CN206505107U CN201621063472.2U CN201621063472U CN206505107U CN 206505107 U CN206505107 U CN 206505107U CN 201621063472 U CN201621063472 U CN 201621063472U CN 206505107 U CN206505107 U CN 206505107U
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Abstract
The utility model proposes a kind of double application power-supply systems of voltage x current, including current lifting device(5), wall bushing(4)And support(7);Current lifting device(5)And wall bushing(4)It is respectively placed in support(7)On, and wall bushing(4)It is inserted in current lifting device(5)Sensing cavity in;Wall bushing(4)For passing through drainage thread(19)Constitute closure metallic(return) circuit to power to load electrical equipment with load electrical equipment;Current lifting device(5)Input winding it is sensed up-flow system power supply pressure regulator(8)It is connected afterwards by low-tension supply line with the first low-tension supply;Wall bushing(4)Also pass through high-voltage connection(20)Successively through divider(13), transformer(12)With insulation pressurized system power regulator(14)Afterwards, then by low-tension supply line it is connected with the second low-tension supply;Support (7), sensing up-flow system power supply pressure regulator (8), transformer (12), divider (13) and insulation pressurized system power regulator (14) are separately mounted on dolly.The double application power-supply system portable intelligents of voltage x current of the present utility model, it is practical.
Description
Technical field
The utility model is related to power equipment, more particularly to a kind of double application power-supply systems of voltage x current.
Background technology
The electrical equipment run in power system can bear the double action of voltage and current.A powered second part and ground
Between insulation function can be realized by various forms of materials and structure, a through-flow second part can pass through various forms of materials
And the type of attachment such as crimping, welding, the contact of storeroom realizes conducting function.Factors of voltage and current caused hot factor are for electric
The influence of apparatus insulated performance has synergistic effect, i.e., by heat, electric circulating effect, acceleration equipment insulating materials performance it is old
Change.Either current normal power supplies are current sources, or it is voltage source;Can not insulation to electrical equipment simultaneously using normal power supplies
Detected with through-flow performance.
Utility model content
Or the purpose of this utility model be for current normal power supplies be current source, or be voltage source;Using routine
Power supply can not be while the problem of insulation and through-flow performance to electrical equipment be detected, it is proposed that a kind of voltage x current is double to be applied
Power-supply system.
The technical scheme in the invention for solving the technical problem is:
The utility model proposes a kind of double application power-supply systems of voltage x current, including current lifting device, wall bushing and support;
Current lifting device and wall bushing are respectively placed on support, and wall bushing is inserted in the sensing cavity of current lifting device;Wall bushing
For being powered by drainage thread and the closure metallic(return) circuit of load electrical equipment composition to load electrical equipment;The input of current lifting device
It is connected after the sensed up-flow system power supply pressure regulator of winding by low-tension supply line with the first low-tension supply;Wall bushing also passes through
High-voltage connection is successively after divider, transformer and insulation pressurized system power regulator, then pass through low-tension supply line and second
Low-tension supply is connected.
The above-mentioned voltage x current of the utility model is double to be applied in power-supply system, in addition to monitoring integrated system platform, the prison
Control integrated system platform is connected by voltage test signal line with divider, for monitoring the electricity being applied in closure metallic(return) circuit
Pressure, is also connected by current test signal line with the current transformer being arranged in wall bushing, and closure is applied to for monitoring
Electric current in metallic(return) circuit.
The utility model above-mentioned voltage x current is double to be applied in power-supply systems, support, sensing up-flow system power supply pressure regulator,
Transformer, divider and insulation pressurized system power regulator are separately mounted on dolly.
The above-mentioned voltage x current of the utility model is double to be applied in power-supply system, input winding and the sensing up-flow system of current lifting device
It is provided with sensing up-flow system low-voltage power supply rear class switch between system power regulator, sensing up-flow system power supply pressure regulator and the
Sensing up-flow system low-voltage power supply prime switch is provided between one low-tension supply;
Insulation pressurized system low-tension supply rear class switch is provided between transformer and insulation pressurized system power regulator,
Insulation pressurized system low-tension supply prime switch is provided between second low-tension supply and insulation pressurized system power regulator.
The utility model above-mentioned voltage x current is double to be applied in power-supply systems, drainage thread be used for and load electrical equipment connects
The end sleeve connect is provided with outlet casing tube.
The utility model also proposed a kind of double application power-supply systems of voltage x current, including current lifting device, cable and support;Rise
Stream device is positioned on support, and cable is inserted in the sensing cavity of current lifting device;Cable is used to pass through drainage thread and load electrical
Equipment constitutes closure metallic(return) circuit to power to load electrical equipment;The sensed up-flow system power supply of input winding of current lifting device is adjusted
It is connected after depressor by low-tension supply line with the first low-tension supply;Cable is also by high-voltage connection successively through divider, transformer
It is connected after insulation pressurized system power regulator, then by low-tension supply line with the second low-tension supply.
The above-mentioned voltage x current of the utility model is double to be applied in power-supply system, in addition to monitoring integrated system platform, the prison
Control integrated system platform is connected by voltage test signal line with divider, for monitoring the electricity being applied in closure metallic(return) circuit
Pressure, is also connected by current test signal line with the current transformer being set on cable, and closure metal is applied to for monitoring
Electric current on loop.
The above-mentioned voltage x current of the utility model is double to be applied in power-supply system, support, sensing up-flow system power supply pressure regulation
Device, transformer, divider and insulation pressurized system power regulator are separately mounted on dolly;The two ends of cable pass through insulator
It is fixed on dolly.
The above-mentioned voltage x current of the utility model is double to be applied in power-supply system, input winding and the sensing up-flow system of current lifting device
It is provided with sensing up-flow system low-voltage power supply rear class switch between system power regulator, sensing up-flow system power supply pressure regulator and the
Sensing up-flow system low-voltage power supply prime switch is provided between one low-tension supply;
Insulation pressurized system low-tension supply rear class switch is provided between transformer and insulation pressurized system power regulator,
Insulation pressurized system low-tension supply prime switch is provided between second low-tension supply and insulation pressurized system power regulator.
The utility model above-mentioned voltage x current is double to be applied in power-supply systems, drainage thread be used for and load electrical equipment connects
The end sleeve connect is provided with outlet casing tube.
The double power-supply systems that apply of voltage x current of the present utility model are based on closing metallic(return) circuit during electrical equipment through-flow test
Sense the principle of up-flow, the closure metallic(return) circuit constituted by wall bushing or cut cable with load electrical equipment is embodied as load
Electrical equipment provides rated voltage, the function of the power supply of rated current, and then the equivalent purposes for realizing the double applications of voltage x current.This
The double application power-supply system portable intelligents of the voltage x current of utility model, it is practical.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 shows the double schematic diagrames for applying power-supply system of the voltage x current of the utility model first embodiment;
Fig. 2 shows the double schematic diagrames for applying power-supply system of the voltage x current of the utility model second embodiment;
Fig. 3 shows the double schematic diagrames for applying power-supply system of the voltage x current of the utility model 3rd embodiment;
Fig. 4 shows the double schematic diagrames for applying power-supply system of the voltage x current of the utility model fourth embodiment.
Embodiment
Technical problem to be solved in the utility model is:Either current normal power supplies are current sources, or it is voltage source;
Can not be while insulation and through-flow performance to electrical equipment be detected using normal power supplies.The utility model is with regard to the technical problem
And the technical thought proposed is:The principle of metallic(return) circuit sensing up-flow is closed during based on electrical equipment through-flow test, by through walls
The closure metallic(return) circuit that sleeve pipe or cut cable are constituted with load electrical equipment is embodied as load electrical equipment and provides rated voltage, volume
Determine the function of the power supply of electric current, and then the equivalent purposes for realizing the double applications of voltage x current.
In order that technical purpose of the present utility model, technical scheme and technique effect are apparent, in order to this area
Technical staff understands and implemented the utility model, the utility model is done below in conjunction with the accompanying drawings and the specific embodiments further in detail
Thin explanation.
First embodiment
As shown in figure 1, Fig. 1, which shows that the voltage x current of the utility model first embodiment is double, applies power-supply system.The electricity
The double power-supply systems that apply of current voltage include current lifting device 5, wall bushing 4 and support 7;Current lifting device 5 and wall bushing 4 are respectively placed in
On support 7, and wall bushing 4 is inserted in the sensing cavity of current lifting device 5;Wall bushing 4 is used for by drainage thread 19 and load
Electrical equipment constitutes closure metallic(return) circuit to power to load electrical equipment;The sensed up-flow system of input winding of current lifting device 5
It is connected after power regulator 8 by low-tension supply line with the first low-tension supply (not shown);Herein, current lifting device 5 is actual
Upper is a kind of transformer, and when wall bushing 4 is inserted in the sensing cavity of current lifting device 5, wall bushing 4 acts essentially as up-flow
The output winding of device 5.By sensing up-flow system power supply pressure regulator 8, it is possible to achieve to the adjustment for the electric current for flowing through input winding,
And then the electric current (electric current for closing metallic(return) circuit) of output winding is flowed through with the cooperation adjustment of current lifting device 5.Preferably, in this implementation
In example, sensing up-flow system power supply pressure regulator 8 is also connected with sensing up-flow system pressure regulating motor 9, for by sensing up-flow system
The adjustment of system pressure regulation motor 9 flows through the electric current of input winding.
Further, wall bushing 4 also by high-voltage connection 20 successively through divider 13, transformer 12 and the pressure-resistant system of insulating
Unite after power regulator 14, then be connected with the second low-tension supply (not shown) by low-tension supply line.So, the second low pressure
After power supply is boosted by the pressurized system power regulator 14 that insulate, realized by wall bushing 4 to closure metallic(return) circuit and apply electricity
The effect of pressure.Wall bushing 4 is as a part for closure metallic(return) circuit, the problem of effectively can realizing insulation against ground.When second low
When the voltage that voltage source is boosted by the pressurized system power regulator 14 that insulate is applied in closure metallic(return) circuit, pass through set through walls
Pipe 4 can also realize the insulation to earthing or grounding means such as current lifting device, supports.Preferably, in the present embodiment, insulate pressurized system power supply
Pressure regulator 14 is connected with insulation pressurized system pressure regulation motor 15, for resistance to by the adjustment insulation of pressurized system pressure regulation motor 15 of insulating
Press the boosting amplitude of system power supply pressure regulator 14.
Preferably, sensing up-flow system is provided between the input winding of current lifting device 5 and sensing up-flow system power supply pressure regulator 8
Low-tension supply of uniting rear class switch 10, is provided with sensing up-flow between sensing up-flow system power supply pressure regulator 8 and the first low-tension supply
System low-voltage power supply prime switch 11;
Preferably, insulation pressurized system low tension is provided between transformer 12 and insulation pressurized system power regulator 14
Source rear class switch 16, is provided with insulation pressurized system low pressure between the second low-tension supply and insulation pressurized system power regulator 14
Power supply prime switch 17.
The double power-supply systems that apply of voltage x current also include monitoring integrated system platform 18, and the monitoring integrated system platform 18 leads to
Insulation pressurized system control line is crossed to switch with insulation pressurized system pressure regulation motor 15, insulation pressurized system low-tension supply rear class respectively
16 connect with insulation pressurized system low-tension supply prime switch 17, and are connected by voltage test signal line 25 with divider 13,
For monitoring the voltage being applied in closure metallic(return) circuit, also flowed up respectively with sensing by sensing up-flow system control line respectively
System low-voltage power supply rear class switch 10, sensing up-flow system low-voltage power supply prime switch 11 and sensing up-flow system pressure regulating motor 9
Connection, is also connected by current test signal line 24 with the current transformer 6 being arranged in wall bushing 4, is applied for monitoring
Electric current in closure metallic(return) circuit, so as to realize the double monitoring for applying detection process of voltage x current to load electrical equipment.
The end sleeve for being connected with load electrical equipment of drainage thread 19 herein, passes through outlet provided with outlet casing tube 2
Sleeve pipe 2 realizes that voltage is isolated.
Preferably, support 7, sensing up-flow system power supply pressure regulator 8, transformer 12, divider 13 and insulation pressurized system
Power regulator 14 is separately mounted on dolly.By this design, make the double electrical equipments for applying power-supply system of voltage x current
Between will not occur electrically to contact by mistake, while also allowing for the double movements for applying power-supply systems of voltage x current.
In the present embodiment, load electrical equipment is potting breaker 1, double carrying out voltage x current to load electrical equipment
When applying detection, the center conductor 3 of potting breaker 1 is connected with drainage thread 19, support 7 by wall bushing 4 and current lifting device 5 oneself
Body is supported in the air.It is arranged at the high current that the current transformer 6 inside wall bushing 4 is used to monitor detecting system.By drawing
Load electrical equipment and wall bushing 4 are formed metallic short circuit loop by streamline 19 in sensing up-flow principle, it is ensured that induced electricity
The smooth output of stream.Whole up-flow process is carried out automatically by sensing up-flow system pressure regulating motor 9.Detect being applied through for voltage
A set of insulation pressurized system is realized:It is made up of absolutely wall bushing 4, outlet casing tube 2, metallic support 7, drainage thread 19 hanging over the ground
Fate system, and pressurization is constituted by transformer 12, divider 13, insulation pressurized system power regulator 14 and high-voltage connection 20
Subsystem.Whole pressure process is passed by the progress automatically of pressurized system pressure regulation motor 15 of insulating, high voltage by high-voltage connection 20
It is directed at metallic closed loop.Due to the buffer action of outlet casing tube 2, wall bushing 4, voltage is isolated with ground;And it is through-flow
Loop follows the closed-loop path of itself and produces continuation high current with induction mode.Monitoring integrated system platform 18 can individually or together
Step carries out voltage, the manipulation of electric current, so as to realize that the automation boosting of whole detection device, up-flow, overvoltage protection, excessively stream are protected
Shield.
Second embodiment
As shown in Fig. 2 the main distinction of second embodiment and first embodiment is:Wall bushing 4 is substituted by cable 21.
Specifically, the double power-supply systems that apply of the voltage x current include current lifting device 5, cable 21 and support 7;Current lifting device 5 is positioned over support 7
On, and cable 21 is inserted in the sensing cavity of current lifting device 5;Cable 21 is used to be made up of with load electrical equipment drainage thread 19
Metallic(return) circuit is closed to power to load electrical equipment;After the sensed up-flow system power supply pressure regulator 8 of input winding of current lifting device 5
It is connected by low-tension supply line with the first low-tension supply (not shown);Herein, current lifting device 5 is actually a kind of transformation
Device, when cable 21 is inserted in the sensing cavity of current lifting device 5, cable 21 acts essentially as the output winding of current lifting device 5.Pass through
Sensing up-flow system power supply pressure regulator 8, it is possible to achieve to the adjustment for the electric current for flowing through input winding, and then coordinate with current lifting device 5
Adjustment flows through the electric current (electric current for closing metallic(return) circuit) of output winding.Preferably, in the present embodiment, up-flow system is sensed
Power regulator 8 is also connected with sensing up-flow system pressure regulating motor 9, for being flowed by sensing the adjustment of up-flow system pressure regulating motor 9
Through the electric current for inputting winding.
Further, cable 21 also by high-voltage connection 20 successively through divider 13, transformer 12 and insulation pressurized system
After power regulator 14, then it is connected with the second low-tension supply (not shown) by low-tension supply line.So, the second low tension
After source is boosted by the pressurized system power regulator 14 that insulate, realized by cable 21 to closure metallic(return) circuit and apply alive work
With.Cable 21 is as a part for closure metallic(return) circuit, the problem of effectively can realizing insulation against ground.When the second low-tension supply passes through
When the voltage of the boosting of insulation pressurized system power regulator 14 is applied in closure metallic(return) circuit, it can also be realized by cable 21 pair
The insulation of the earthing or grounding means such as current lifting device, support.Preferably, in the present embodiment, insulation pressurized system power regulator 14 with absolutely
Edge pressurized system pressure regulation motor 15 is connected, for being adjusted by the adjustment insulation pressurized system power supply of pressurized system pressure regulation motor 15 that insulate
The boosting amplitude of depressor 14.
Preferably, sensing up-flow system is provided between the input winding of current lifting device 5 and sensing up-flow system power supply pressure regulator 8
Low-tension supply of uniting rear class switch 10, is provided with sensing up-flow between sensing up-flow system power supply pressure regulator 8 and the first low-tension supply
System low-voltage power supply prime switch 11;
Preferably, insulation pressurized system low tension is provided between transformer 12 and insulation pressurized system power regulator 14
Source rear class switch 16, is provided with insulation pressurized system low pressure between the second low-tension supply and insulation pressurized system power regulator 14
Power supply prime switch 17.
The double power-supply systems that apply of voltage x current also include monitoring integrated system platform 18, and the monitoring integrated system platform 18 leads to
Insulation pressurized system control line is crossed to switch with insulation pressurized system pressure regulation motor 15, insulation pressurized system low-tension supply rear class respectively
16 connect with insulation pressurized system low-tension supply prime switch 17, and are connected by voltage test signal line 25 with divider 13,
For monitoring the voltage being applied in closure metallic(return) circuit, also flowed up respectively with sensing by sensing up-flow system control line respectively
System low-voltage power supply rear class switch 10, sensing up-flow system low-voltage power supply prime switch 11 and sensing up-flow system pressure regulating motor 9
Connection, is also connected by current test signal line 24 with the current transformer 6 being set on cable 21, is closed for monitoring to be applied to
The electric current in metallic(return) circuit is closed, so as to realize the double monitoring for applying detection process of voltage x current to load electrical equipment.
The end sleeve for being connected with load electrical equipment of drainage thread 19 herein, passes through outlet provided with outlet casing tube 2
Sleeve pipe 2 realizes that voltage is isolated.
Preferably, support 7, sensing up-flow system power supply pressure regulator 8, transformer 12, divider 13 and insulation pressurized system
Power regulator 14 is separately mounted on dolly.By this design, make the double electrical equipments for applying power-supply system of voltage x current
Between will not occur electrically to contact by mistake, while also allowing for the double movements for applying power-supply systems of voltage x current.
Because cable 21 has certain elasticity, in the present embodiment, the two ends of cable 21 are fixed on small by insulator
Che Shang, can facilitate wiring.Preferably, the two ends of cable 21 are also arranged with ground protection grading ring respectively so that occur in cable
All kinds of insulation flashovers of 21 positions constitute most short discharge channel.Current lifting device is also insulated by insulating cell and support, to the greatest extent may be used
Influence of the voltage source flashover to current source can be reduced.
3rd embodiment
In the present embodiment, load electrical equipment is the disconnecting switch 27 of bare conductor or closure;As shown in figure 3, for this
The voltage x current of embodiment is double to apply power-supply systems, not using outlet casing tube 2, but employ the support of supports insulative 28 every
Pass 27 is left to realize that its voltage is isolated, remainder is identical with first embodiment.
Fourth embodiment
In the present embodiment, load electrical equipment is cable 29;As shown in figure 4, double for the voltage x current of the present embodiment
Apply power-supply system, not using outlet casing tube 2, but employ leading-out terminal sleeve pipe 30 and be set in the end of cable 29 to realize it
Voltage is isolated, and remainder is identical with first embodiment.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the utility model appended claims.
Claims (8)
1. a kind of voltage x current is double to apply power-supply system, it is characterised in that including current lifting device (5), wall bushing (4) and support
(7);Current lifting device (5) and wall bushing (4) are respectively placed on support (7), and wall bushing (4) is inserted in current lifting device (5)
Sense in cavity;Wall bushing (4) is used to constitute closure metallic(return) circuit by drainage thread (19) and load electrical equipment with to negative
On-board electrical equipment is powered;Pass through low-tension supply line after the sensed up-flow system power supply pressure regulator (8) of input winding of current lifting device (5)
It is connected with the first low-tension supply;Wall bushing (4) also by high-voltage connection (20) successively through divider (13), transformer (12) and
Insulate after pressurized system power regulator (14), then be connected by low-tension supply line with the second low-tension supply;
Support (7), sensing up-flow system power supply pressure regulator (8), transformer (12), divider (13) and insulation pressurized system power supply
Pressure regulator (14) is separately mounted on dolly.
2. voltage x current according to claim 1 is double to apply power-supply system, it is characterised in that also including monitoring integrated system
Platform (18), the monitoring integrated system platform (18) is connected by voltage test signal line (25) with divider (13), for supervising
The voltage being applied in closure metallic(return) circuit is surveyed, also by current test signal line (24) with being arranged in wall bushing (4)
Current transformer (6) is connected, for monitoring the electric current being applied in closure metallic(return) circuit.
3. voltage x current according to claim 1 is double to apply power-supply systems, it is characterised in that the input of current lifting device (5) around
Sensing up-flow system low-voltage power supply rear class switch (10), sensing are provided between group and sensing up-flow system power supply pressure regulator (8)
Sensing up-flow system low-voltage power supply prime switch is provided between up-flow system power supply pressure regulator (8) and the first low-tension supply
(11);
Insulation pressurized system low-tension supply rear class is provided between transformer (12) and insulation pressurized system power regulator (14)
Switch (16), insulation pressurized system low tension is provided between the second low-tension supply and insulation pressurized system power regulator (14)
Source prime switch (17).
4. voltage x current according to claim 1 is double to apply power-supply systems, it is characterised in that drainage thread (19) be used for
The end sleeve of load electrical equipment connection is provided with outlet casing tube (2).
5. a kind of voltage x current is double to apply power-supply system, it is characterised in that including current lifting device (5), cable (21) and support (7);
Current lifting device (5) is positioned on support (7), and cable (21) is inserted in the sensing cavity of current lifting device (5);Cable (21) is used to lead to
Drainage thread (19) is crossed to constitute closure metallic(return) circuit to power to load electrical equipment with load electrical equipment;Current lifting device (5) it is defeated
It is connected after entering the sensed up-flow system power supply pressure regulator (8) of winding by low-tension supply line with the first low-tension supply;Cable (21)
Also by high-voltage connection (20) successively after divider (13), transformer (12) and insulation pressurized system power regulator (14),
It is connected again by low-tension supply line with the second low-tension supply;
Support (7), sensing up-flow system power supply pressure regulator (8), transformer (12), divider (13) and insulation pressurized system power supply
Pressure regulator (14) is separately mounted on dolly;The two ends of cable (21) are fixed on dolly by insulator.
6. voltage x current according to claim 5 is double to apply power-supply system, it is characterised in that also including monitoring integrated system
Platform (18), the monitoring integrated system platform (18) is connected by voltage test signal line (25) with divider (13), for supervising
The voltage being applied in closure metallic(return) circuit is surveyed, also passes through current test signal line (24) and the electric current being set on cable (21)
Transformer (6) is connected, for monitoring the electric current being applied in closure metallic(return) circuit.
7. voltage x current according to claim 5 is double to apply power-supply systems, it is characterised in that the input of current lifting device (5) around
Sensing up-flow system low-voltage power supply rear class switch (10), sensing are provided between group and sensing up-flow system power supply pressure regulator (8)
Sensing up-flow system low-voltage power supply prime switch is provided between up-flow system power supply pressure regulator (8) and the first low-tension supply
(11);
Insulation pressurized system low-tension supply rear class is provided between transformer (12) and insulation pressurized system power regulator (14)
Switch (16), insulation pressurized system low tension is provided between the second low-tension supply and insulation pressurized system power regulator (14)
Source prime switch (17).
8. voltage x current according to claim 5 is double to apply power-supply systems, it is characterised in that drainage thread (19) be used for
The end sleeve of load electrical equipment connection is provided with outlet casing tube (2).
Priority Applications (1)
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CN201621063472.2U CN206505107U (en) | 2016-09-19 | 2016-09-19 | Voltage x current is double to apply power-supply system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109406969A (en) * | 2018-12-04 | 2019-03-01 | 西安交通大学 | A kind of air insulating device high-voltage great-current Combined Trials system |
CN112485745A (en) * | 2020-11-17 | 2021-03-12 | 广东电网有限责任公司计量中心 | From simulation platform who takes isolator |
-
2016
- 2016-09-19 CN CN201621063472.2U patent/CN206505107U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109406969A (en) * | 2018-12-04 | 2019-03-01 | 西安交通大学 | A kind of air insulating device high-voltage great-current Combined Trials system |
CN112485745A (en) * | 2020-11-17 | 2021-03-12 | 广东电网有限责任公司计量中心 | From simulation platform who takes isolator |
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