CN209448505U - A kind of feeder means and DC feeder screen - Google Patents
A kind of feeder means and DC feeder screen Download PDFInfo
- Publication number
- CN209448505U CN209448505U CN201920099070.5U CN201920099070U CN209448505U CN 209448505 U CN209448505 U CN 209448505U CN 201920099070 U CN201920099070 U CN 201920099070U CN 209448505 U CN209448505 U CN 209448505U
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- feeder
- detection module
- line detection
- feeder line
- electrically connected
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Abstract
The utility model proposes a kind of feeder means and DC feeder screens, are related to substation's technical field.Feeder means include multiple tributary units, tributary unit includes miniature circuit breakers and feeder line detection module, each miniature circuit breakers are electrically connected to a power source, each miniature circuit breakers and each feeder line detection module correspond electrical connection, each feeder line detection module is electrically connected with multiple loads one-to-one correspondence, and each feeder line detection module passes through backboard PCB and is electrically connected with insulating monitor；The insulation information and switch state of tributary unit where each feeder line detection module is used to detect it, and insulation information and switch state are sent to insulating monitor.The problem of feeder means are attached by backboard PCB, and the secondary line that can solve existing DC feeder screen is more, complex process, error rate are high and low efficiency.
Description
Technical field
The utility model relates to substation's technical fields, in particular to a kind of feeder means and DC feeder screen.
Background technique
DC feeder screen is the component part of direct current system, and DC power supply is distributed to each load and is used, and is supervised in real time
Control the insulation situation and switch state of each branch.
In group screen, each component of existing DC feeder screen carries out information transmission using secondary line, and what is used is secondary
Line is more, so that the cabling of DC feeder screen is not succinct enough, and meanwhile the production of secondary line, the wiring of system also labor intensive, production
It is inefficient, it is easy error.
Utility model content
The purpose of this utility model is to provide a kind of feeder means and DC feeder screen, which passes through backboard
PCB is attached, and the secondary line that can solve existing DC feeder screen is more, complex process, error rate are high and low efficiency is asked
Topic.
To achieve the goals above, the utility model embodiment the technical solution adopted is as follows:
In a first aspect, the utility model embodiment provides a kind of feeder means, feeder means include multiple tributary units,
Tributary unit includes miniature circuit breakers and feeder line detection module, and each miniature circuit breakers are electrically connected to a power source, each miniature circuit breakers
It corresponds and is electrically connected with each feeder line detection module, each feeder line detection module is electrically connected with multiple loads one-to-one correspondence, often
A feeder line detection module passes through backboard PCB and is electrically connected with insulating monitor；Each feeder line detection module is for detecting its place
The insulation information and switch state of tributary unit, and insulation information and switch state are sent to insulating monitor.
Second aspect, the utility model embodiment additionally provide a kind of DC feeder screen, which includes feeder line
Device, feeder means include multiple tributary units, and the tributary unit includes miniature circuit breakers and feeder line detection module, Mei Gewei
It disconnects closing and be electrically connected to a power source, each miniature circuit breakers and each feeder line detection module correspond electrical connection, each feeder line inspection
It surveys module to be electrically connected with multiple loads one-to-one correspondence, each feeder line detection module passes through backboard PCB and is electrically connected with insulating monitor
It connects；Each feeder line detection module is used to detect the insulation information and switch state of tributary unit where it, and will insulation information and
Switch state is sent to insulating monitor.
A kind of feeder means provided by the utility model and DC feeder screen, the feeder means include multiple tributary units,
Each tributary unit includes miniature circuit breakers and feeder line detection module, and each miniature circuit breakers are electrically connected to a power source, each micro- disconnected
Switch and each feeder line detection module correspond electrical connection, and each feeder line detection module is electrically connected with multiple loads one-to-one correspondence
It connects, each feeder line detection module passes through backboard PCB and is electrically connected with insulating monitor；Each feeder line detection module is for detecting it
The insulation information and switch state of place tributary unit, and insulation information and switch state are sent to insulating monitor.As it can be seen that
Signal transmission is carried out to slotting mode with contact pin between each feeder line detection module and backboard PCB, eliminates secondary line connection, no
It is only capable of playing the role of fixed and positions feeder line detection module, the secondary line that can also solve existing DC feeder screen is more, technique
The problem of complicated, error rate height and low efficiency.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the connection schematic diagram of existing DC feeder screen；
Fig. 2 shows the connection schematic diagrams of feeder means provided by the embodiment of the utility model；
Fig. 3 shows the structural block diagram of feeder means provided by the embodiment of the utility model；
Fig. 4 shows the structural schematic diagram of the feeder line detection module of feeder means in Fig. 3；
Fig. 5 shows the scheme of installation of the toggle switch of feeder means in Fig. 3.
Icon: 1- feeder means；10- tributary unit；100- miniature circuit breakers；200- feeder line detection module；210- leakage current
Sensor；220- first processor；230- divider resistance；240- indicator light；250- display unit；300- information aggregator；
310- second processor；320- communication unit；400- toggle switch；500- backboard PCB；600- copper sheet；2- power supply；3- load；
4- insulating monitor.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile it is practical new at this
In the description of type, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relatively important
Property.
Fig. 1 is please referred to, is the connection schematic diagram of existing DC feeder screen, existing DC feeder screen is by multiple leakage currents
Sensor, multiple miniature circuit breakers, multiple indicator lights and feeder line detection unit composition.Each branch is equipped with a leakage current sensing
Device, a miniature circuit breaker and an indicator light, the miniature circuit breaker of each branch are electrically connected with DC power supply, Mei Gezhi
The miniature circuit breaker on road is also electrically connected with the indicator light of feeder line detection unit and the branch road, leakage current sensor, Mei Gezhi
The leakage current sensor on road is electrically connected with feeder line detection unit, and the leakage current sensor of each branch is also born from different respectively
Electrical connection is carried, feeder line detection unit is electrically connected by communication line with insulating monitor.
The transmission for carrying out information using secondary line since all parts are all independently installed, and between component and component, from
And the secondary line used is more, so that the cabling of existing DC feeder screen is not succinct enough, while the production of secondary line, system connect
Line also labor intensive, production efficiency is not high, is easy error.
Miniature circuit breaker, leakage current sensor and indicator light are integrated in one by another existing DC feeder screen
It rises, since miniature circuit breaker and sensor integration are an entirety, the type selecting for limiting miniature circuit breaker is used, i.e., can only
Using a kind of miniature circuit breaker, practicability is not strong.
Based on existing technological deficiency, the utility model embodiment provides a kind of settling mode are as follows: is carried out using backboard PCB
Connection, it is possible to reduce the use of secondary line improves production efficiency, and reduce so that the cabling in DC feeder screen is succinct
Error rate；Miniature circuit breakers are separately designed with feeder line detection module simultaneously, the miniature circuit breakers of different model can be used, practicability is more
By force.
It referring to figure 2., is the connection schematic diagram of feeder means 1 provided by the utility model embodiment, the feeder means 1
Applied to DC feeder screen, DC feeder screen further includes cabinet body, and feeder means 1 are mounted in cabinet body.DC feeder screen passes through feedback
The voltage of power supply 2 is distributed to each load 3 by line apparatus 1, is worked to load 3 according to the voltage of power supply 2；Also pass through feedback
The insulation information and switch state of each branch are transmitted to insulating monitor 4 by line apparatus 1, so that staff understands direct current feedback
The working condition of each branch of line screen.
Feeder means 1 include multiple tributary units 10, and each tributary unit 10 includes that miniature circuit breakers 100 and feeder line detect
Module 200, each miniature circuit breakers 100 are electrically connected with power supply 2, each miniature circuit breakers 100 and each feeder line detection module 200 1
One corresponding electrical connection, each feeder line detection module 200 are corresponded with multiple loads 3 and are electrically connected, each feeder line detection module 200
It is electrically connected by backboard PCB500 with insulating monitor 4.
The insulation information and switch state of tributary unit 10 where each feeder line detection module 200 is used to detect it, and will
Insulation information and switch state are sent to insulating monitor 4.
It is appreciated that each tributary unit 10 is used to acquire the insulation information and switch shape of each branch of DC feeder screen
State, and will insulate information and switch state are sent to record and display that insulating monitor 4 carries out data, staff understands straight
Flow the working condition of each branch of feeder line screen.
Wherein, switch state refers to the off-state or on state of the miniature circuit breakers 100 of each tributary unit 10.If micro-
It disconnects pass 100 to be in an off state, then the voltage of power supply 2 can not be provided to the load 3 connecting with the branch by the branch, together
When the branch road feeder line detection module 200 can receive low level signal (such as 0V), the feeder line detection module 200 is low according to this
Level signal judges that the miniature circuit breakers 100 being electrically connected with the feeder line detection module 200 are in an off state；If miniature circuit breakers
100 is in the conductive state, then the voltage of power supply 2 is provided to the load 3 connecting with the branch, while branch road by the branch
Feeder line detection module 200 can receive high level signal (such as 5V), which sentences according to the high level signal
The disconnected miniature circuit breakers 100 being electrically connected out with the feeder line detection module 200 are in the conductive state.
It referring to figure 3., is a kind of structural schematic diagram of feeder line detection module 200 shown in Fig. 2, each feeder line detection module
200 include leakage current sensor 210 and first processor 220, first processor 220 and leakage current sensor 210 and first
The miniature circuit breakers 100 of 220 place tributary unit 10 of processor are electrically connected, and leakage current sensor 210 is connected to miniature circuit breakers 100
Between load 3.
The insulation information of tributary unit 10 where leakage current sensor 210 is used to detect it, and insulation information is sent to
First processor 220；First processor 220 is used to obtain the switch state and insulation information of miniature circuit breakers 100, and will switch shape
State and insulation information are sent to insulating monitor 4.
It is appreciated that leakage current sensor 210 according to mutual inductor electromagnetic isolation, magnetic modulation working principle by tested direct current every
From standard analog signals such as DC current, the DC voltage of conversion linearly.Leakage current sensor 210 is fitted around every
A branch road, when the insulation situation of the positive and negative busbar of branch is normal, the size of current for flowing through leakage current sensor 210 is equal,
It is contrary, leakage current sensor 210 to the insulation information that first processor 220 exports be zero；When the positive and negative busbar of branch
When the situation exception that insulate, leakage current sensor 210 has poor stream to flow through, and leakage current sensor 210 is exported to first processor 220
Insulation information is not zero.Staff may determine that whether the insulation situation of the branch is normal according to the value size of insulation information.
Further, in the present embodiment, each feeder line detection module 200 further includes divider resistance 230, divider resistance
230 are electrically connected with the miniature circuit breakers 100 of tributary unit 10 same where it and first processor 220；Divider resistance 230 is used for
The information of voltage of tributary unit 10 where acquiring it, and information of voltage is transmitted to first processor 220.
It is appreciated that first processor 220 also receives the information of voltage of its place branch, first processor 220 will be received
To information of voltage and insulation information be first AD converted, then calculate the insulation resistance of branch where it again.Wherein, power supply
2 include anode and cathode, and then the corresponding cathode for including the anode of power supply 2 resistance value over the ground and power supply 2 is over the ground for insulation resistance
Resistance value.
Further, in the present embodiment, each feeder line detection module 200 further includes display unit 250, display unit
250 are electrically connected with the first processor 220 of tributary unit 10 same where it.
It is appreciated that display unit 250 is for displaying data.Wherein, data can receive for first processor 220
The insulation resistance that is calculated of insulation information, information of voltage and first processor 220.Display unit 250 can also pass through
Key is selectively shown that key can be touch key-press, or mechanical key to data.
When Abnormal Insulation situation occurs in 250 place branch of display unit, it is single that first processor 220 can also control display
Member 250 carries out light alarm in a manner of screen flicker.
In this example it is shown that unit 250 can use, but it is not limited to liquid crystal display.
Further, in the present embodiment, each feeder line detection module 200 further includes indicator light 240, indicator light 240
It is electrically connected with the miniature circuit breakers 100 of tributary unit 10 same where it；Indicator light 240 is for sending indication signal.
It is appreciated that 240 both ends of indicator light are with the presence of voltage, indicator light when miniature circuit breakers 100 are in the conductive state
240 can be lit, and then send light indicating signal, and staff can learn the branch according to the light indicating signal
There is voltage to provide to load 3.When miniature circuit breakers 100 are in an off state, 240 both ends no-voltage of indicator light exists, indicator light
240 not can be lit then, and then will not send light indicating signal, and staff believes according to the indicator light 240 without lamplight pointing
Number issue, can learn the branch no-voltage to load 3 provide.
In the present embodiment, as shown in figure 4, each feeder line detection module 200 be provided with it is movable along specific direction
Copper sheet 600, each feeder line detection module 200 are connected one to one by copper sheet 600 with each miniature circuit breakers 100.
In the present embodiment, feeder line detection module 200 is electrically connected by copper sheet 600 with miniature circuit breakers 100, and then substitutes two
The mode of secondary line connection, can be further reduced the use of secondary line.
Meanwhile the copper sheet 600 that feeder line detection module 200 is arranged can be displaced along specific direction, for meeting different manufacturers
Miniature circuit breakers 100 connection, due to different manufacturers different model miniature circuit breakers 100 dimensional structure not fully,
So the position of the connectivity port of miniature circuit breakers 100 will be different.For example, different manufacturers are not due to dimensional structure
Connectivity port with the miniature circuit breakers 100 of model is not consistent in the position of feeder line detection module 200X axis direction, if feeder line is examined
It is movable along the x axis to survey the copper sheet 600 that module 200 is arranged, feeder line detection module 200 can be made with different manufacturers different shaped
Number miniature circuit breakers 100 be attached so that the type selecting range of device is wider, increase the practicability of feeder means 1.
Further, in the present embodiment, feeder means 1 further include information aggregator 300, each feeder line detection module
200 are electrically connected by information aggregator 300 with insulating monitor 4.
In the present embodiment, information aggregator 300 includes second processor 310 and communication unit 320, second processor
310 are electrically connected with the first processor 220 of each feeder line detection module 200, second processor 310 also with communication unit 320
Electrical connection, second processor 310 are used to receive the insulation information and switch for its place branch that each first processor 220 is sent
State, and insulation information and switch state are sent to communication unit 320.Communication unit 320 is electrically connected with insulating monitor 4,
It is sent to absolutely for receiving the insulation information and switch state of the transmission of second processor 310, and by insulation information and switch state
Edge monitor 4.
It is appreciated that first processor 220 and second processor 310 are a kind of IC chip, have at signal
Reason ability.First processor 220 and second processor 310 can be general processor, including central processing unit (Central
Processing Unit, CPU), network processing unit (Network Processor, NP) etc.；It can also be Digital Signal Processing
Device, specific integrated circuit, field programmable gate array or other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components.General processor can be microprocessor or first processor 220 and second processor 310 can also
To be any conventional processor etc..
Communication unit 320 can be wireless communication module, be also possible to wire communication module.When communication unit 320 is nothing
It, can be using bluetooth module, Wi-Fi module, LTE module and LoRa module etc. when line communication module.When communication unit 320 is to have
When line communication module, 485 communication chips can be used, in order to which second processor 310 uses 485 communication modes and insulating monitoring
The interaction of the progress data of instrument 4.
In the present embodiment, each feeder line detection module 200 is electrically connected by backboard PCB500 with information aggregator 300.
It is appreciated that each feeder line detection module 200 is electrically connected from different miniature circuit breakers 100 respectively by copper sheet 600,
Each feeder line detection module 200 is electrically connected by backboard PCB500 with information aggregator 300.I.e. each first processor 220
It is electrically connected respectively from different miniature circuit breakers 100 by copper sheet 600, each first processor 220 passes through backboard PCB500 and the
Two processors 310 are electrically connected.Using contact pin to carrying out by the way of slotting between each feeder line detection module 200 and backboard PCB500
Signal transmission, can not only save the use of secondary line, moreover it is possible to play the role of fixed and position feeder line detection module 200.
In the present embodiment, first processor 220, leakage current sensor 210, divider resistance 230, indicator light 240 and
Display unit 250 is integrated on one piece of printed circuit board (Printed Circuit Board, PCB), first processor 220,
The copper wire on pcb board can be passed through between leakage current sensor 210, divider resistance 230, indicator light 240 and display unit 250
It is electrically connected, to realize the transmission of information.
Further, as shown in figure 5, in the present embodiment, feeder means 1 further include multiple toggle switch 400, Mei Gekui
Line detection module 200 and information aggregator 300, which correspond, is equipped with toggle switch 400；Toggle switch 400 is for being each
Feeder line detection module 200 and information aggregator 300 provide address information.
It is electrically connected it is appreciated that each first processor 220 is corresponded from different toggle switch 400 respectively, second
Processor 310 is also electrically connected with toggle switch 400, i.e. each first processor 220 and second processor 310 correspondence is electrically connected
Connect a toggle switch 400.The encoded radio of each toggle switch 400 setting is different, and different encoded radios then represents different
Address information, and the encoded radio being arranged is sent to the first processor 220 being connected electrically or second processor 310.The
One processor 220 can also be sent when sending insulation information and switch state to second processor 310 to second processor 310
Corresponding address information (i.e. encoded radio), wherein corresponding address information indicates that the dial-up being electrically connected with first processor 220 is opened
Close the encoded radio of 400 settings.The different address information that second processor 310 is sent according to each first processor 220 can be known
Not Chu its received insulation information and switch state be which specific branch of DC feeder screen.In the present embodiment, according to
Multiple information aggregators 300 can be generally arranged in actual conditions, and insulating monitor 4 is sent not according to each second processor 310
Same address information, just can recognize that its received insulation information and switch state is what which second processor 310 was sent.
For example, being correspondingly arranged on 12 tributary units 10 if DC feeder screen is provided with 12 branches；Every 4 branches
An information aggregator 300 is shared, that is, is provided with 3 information aggregators 300.15 toggle switch 400 are so correspondingly arranged on,
Wherein 12 toggle switch 400 are electrically connected with 12 first processors 220 one-to-one correspondence in 12 tributary units 10 respectively, in addition
3 toggle switch 400 are electrically connected with 3 second processors 310 one-to-one correspondence in 3 information aggregators 300 respectively.If dial-up
Switch 400 uses 4 toggle switch, the encoded radio for 12 toggle switch 400 setting being electrically connected with 12 first processors 220
It can be respectively 0000,0001,0010,0011,0100,0101,0110,0111,1000,1001,1010,1011, with 3
The encoded radio of 3 toggle switch 400 setting of two processors 310 electrical connection can be respectively 1100,1101,1110.
In conclusion feeder means provided by the embodiment of the utility model and DC feeder screen, which includes more
A tributary unit, each tributary unit include miniature circuit breakers and feeder line detection module, and each miniature circuit breakers are electrically connected with power supply
It connects, each miniature circuit breakers and each feeder line detection module correspond electrical connection, each feeder line detection module and multiple loads one
One corresponding electrical connection, each feeder line detection module pass through backboard PCB and are electrically connected with insulating monitor；Each feeder line detection module
Insulation prison is sent to for the insulation information and switch state of tributary unit where detecting it, and by insulation information and switch state
Survey instrument.As it can be seen that carrying out signal transmission to slotting mode with contact pin between each feeder line detection module and backboard PCB, two are eliminated
Secondary line connection can not only be played the role of fixed and position feeder line detection module, can also solve the two of existing DC feeder screen
The problem of secondary line is more, complex process, error rate are high and low efficiency.Wherein, each feeder line detection module includes the first processing
Device can not only be collected insulation information and switch state using first processor, moreover it is possible to and it is handled and is calculated, Jin Erti
The intelligent level for rising DC feeder screen reduces the workload of system debug, and the also application for internet of things technology in power grid is prepared.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that
To: similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing
Justice does not need then that it is further defined and explained in subsequent attached drawing.
Claims (10)
1. a kind of feeder means, which is characterized in that the feeder means include multiple tributary units, and each tributary unit is equal
Including miniature circuit breakers and feeder line detection module, each miniature circuit breakers are electrically connected to a power source, each miniature circuit breakers and
Each feeder line detection module corresponds electrical connection, and each feeder line detection module is electrically connected with multiple loads one-to-one correspondence
It connects, each feeder line detection module passes through backboard PCB and is electrically connected with insulating monitor；
The insulation information and switch state of tributary unit where each feeder line detection module is used to detect it, and will be described exhausted
Edge information and the switch state are sent to the insulating monitor.
2. feeder means as described in claim 1, which is characterized in that each feeder line detection module includes that electric leakage is spread
Tributary unit where sensor and first processor, the first processor and the leakage current sensor and the first processor
Miniature circuit breakers be electrically connected, the leakage current sensor is connected between the miniature circuit breakers and the load；
The insulation information of tributary unit where the leakage current sensor is used to detect it, and the insulation information is sent to institute
State first processor；
The first processor be used to obtain the miniature circuit breakers switch state and the insulation information, and by the switch shape
State and the insulation information are sent to the insulating monitor.
3. feeder means as claimed in claim 2, which is characterized in that each feeder line detection module further includes partial pressure electricity
Resistance, the divider resistance are electrically connected with the miniature circuit breakers of tributary unit same where it and first processor；
The divider resistance is used to acquire the information of voltage of tributary unit where it, and the information of voltage is transmitted to described the
One processor.
4. feeder means as claimed in claim 2, which is characterized in that each feeder line detection module further includes instruction
Lamp, the indicator light are electrically connected with the miniature circuit breakers of tributary unit same where it；
The indicator light is for sending indication signal.
5. feeder means as claimed in claim 2, which is characterized in that each feeder line detection module further includes that display is single
Member, the display unit are electrically connected with the first processor of tributary unit same where it.
6. feeder means as described in claim 1, which is characterized in that the feeder means further include information aggregator, each
The feeder line detection module is electrically connected by the information aggregator with the insulating monitor.
7. feeder means as claimed in claim 6, which is characterized in that each feeder line detection module passes through the backboard
PCB is electrically connected with the information aggregator.
8. feeder means as claimed in claim 6, which is characterized in that the feeder means further include multiple toggle switch, often
A feeder line detection module and the information aggregator, which correspond, is equipped with the toggle switch；
The toggle switch is used to provide address information for each feeder line detection module and the information aggregator.
9. feeder means as described in claim 1, which is characterized in that each feeder line detection module is provided with along specific
The movable copper sheet in direction, each feeder line detection module are corresponded and are connected by the copper sheet and each miniature circuit breakers
It connects.
10. a kind of DC feeder screen, which is characterized in that including feeder means described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099070.5U CN209448505U (en) | 2019-01-21 | 2019-01-21 | A kind of feeder means and DC feeder screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099070.5U CN209448505U (en) | 2019-01-21 | 2019-01-21 | A kind of feeder means and DC feeder screen |
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| Publication Number | Publication Date |
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| CN209448505U true CN209448505U (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560616A (en) * | 2019-01-21 | 2019-04-02 | 深圳市泰昂能源科技股份有限公司 | A kind of feeder means and DC feeder screen |
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2019
- 2019-01-21 CN CN201920099070.5U patent/CN209448505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560616A (en) * | 2019-01-21 | 2019-04-02 | 深圳市泰昂能源科技股份有限公司 | A kind of feeder means and DC feeder screen |
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