CN209217558U - A kind of automatism isolation formula intelligent and safe switchgear - Google Patents
A kind of automatism isolation formula intelligent and safe switchgear Download PDFInfo
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- CN209217558U CN209217558U CN201822183540.4U CN201822183540U CN209217558U CN 209217558 U CN209217558 U CN 209217558U CN 201822183540 U CN201822183540 U CN 201822183540U CN 209217558 U CN209217558 U CN 209217558U
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Abstract
The utility model relates to automatism isolation formula intelligent and safe switchgears, an electromagnetic lock will be arranged on grounding shaft, to pass in and out in cable tie electricity situation, realize locked to grounding shaft；One automatism isolation controller is electrically connected to electromagnetic lock, realizes the control of electromagnetic lock；To ensure to charge locking stability, the automatism isolation controller, pass through setting CT electricity-fetching module, detection module and intelligent controller connecting the two, it realizes and automatically generates driving electric energy, eliminate the additional demand for being laid with direct current supply line, it is truly realized passive detection conveying circuit voltage value, drives electromagnetic lock, sealed grounding shaft automatically.
Description
Technical field
The utility model belongs to electrical equipment technical field, is specifically related to a kind of energy automatism isolation earthing switch, safety
The automatism isolation formula intelligent and safe switchgear of intelligence.
Background technique
Currently, switchgear is in design in use, being both needed to accomplish that five prevent chain, five prevent in chain, and earthing switch electrification is closed
Lock easily causes a serious accident, and therefore, charges automatism isolation earthing switch, particularly significant.
In the prior art, it generally by mechanical chain mechanism, realizes and locks ground connection after disconnecting switch and on-load switch are closed a floodgate
Switch shaft, however, in actual use, especially mechanical chain mechanism wear or or allotment fault in the case of, earthing switch band
Electric combined floodgate accident also has generation.
And the technical solution of electromagnetic locking grounding shaft, due to the additional setting supply current of the defeated needs of electromagnetic mechanism, system is multiple
It is miscellaneous, and longtime running stability is not high, in actual production, not large-scale popularization application.
Therefore, it is badly in need of that a kind of system is simple, the high automatism isolation safety switch cabinet of job stability.
Summary of the invention
The utility model is intended to provide a kind of automatism isolation formula intelligent and safe switchgear, to solve existing switchgear, electromagnetism
Lock the problem of stability difference.
Concrete scheme is as follows: a kind of automatism isolation formula intelligent and safe switchgear, including closed metal cabinet, metal cabinet
Inside isolation is provided with bus-bar room, handcart room and outlet room from top to bottom；
It is provided with control cabinet, three-phase vacuum pole and electric chassis truck, control cabinet in handcart room and is fixedly installed on electronic
On chassis vehicle, three-phase vacuum pole is set to the rear portion of control cabinet；Bus-bar room is equipped with to be fitted close with the three-phase vacuum pole
Three-phase static contact；
It is equipped with the three-phase cooperated with the three-phase vacuum pole in the outlet room and draws contact, each extraction contact is equipped with
One disengaging cable；And in the outlet room to should three-phase draw contact position, be additionally provided with an earthing switch, which sets
In on a grounding shaft, which is equipped with an electromagnetic lock；
It further include an automatism isolation controller, which includes CT electricity-fetching module, detection module and intelligence
It can control device；
The intelligent controller includes a MCU processor, and the signal acquisition interface that is electrically connected with the MCU processor and after
Electrical equipment control interface, the electromagnetic lock are electrically connected to the relay control interface；
The detection module includes capacitive divider and signal processing module interconnected, capacitive divider electrical connection
To the disengaging cable, which is also electrically connected to the signal acquisition interface；
The CT electricity-fetching module includes an induction coil being set on disengaging cable；The rear and front end of the induction coil is respectively provided with
One connecting terminal, two connecting terminals parallel connection have transient state suppression circuit and high tension protection circuit；
Multiple leading-out terminals are also led at the induction coil difference coil turn, all leading-out terminals are connected in parallel to
One selection circuit, and an induction electricity-fetching module is electrically connected to by the selection circuit, and the selection circuit and the relay control
Interface electrical connection；
It further include an energy storage capacitor for being electrically connected to the intelligent controller, the energy storage capacitor and the intelligent controller also divide
It is not electrically connected with the induction electricity-fetching module.
The further technical solution of the utility model are as follows: the capacitive divider includes the derided capacitors mutually concatenated, the letter
Number processing module includes sequentially connected filter preprocessing circuit, A/D conversion circuit and data processing chip；The filtering is located in advance
It manages circuit to access between two derided capacitors, which is electrically connected to the signal acquisition interface.
The further technical solution of the utility model are as follows: the transient state suppression circuit includes that transient voltage inhibits pipe, the wink
State voltage inhibits the both ends of pipe to be respectively electrically connected to two connecting terminals；
The high tension protection circuit includes the first normally opened relay, which is electrically connected to relay control
Interface.
The further technical solution of the utility model are as follows: on the selection circuit, corresponding each leading-out terminal is respectively equipped with
One second normally opened relay；Each second normally opened relay, is respectively electrically connected to the relay control interface.
The further technical solution of the utility model are as follows: wherein the connecting terminal is electrically connected to the induction electricity-fetching module；
Another connecting terminal is electrically connected to the selection circuit, and on the selection circuit, and the corresponding connecting terminal is equipped with a normally closed relay
Device, the normally closed relay are electrically connected to relay control interface.
The further technical solution of the utility model are as follows: the MCU processor is also electrically connected with a memory and an optical fiber
Interface module；The intelligent controller, signal processing module, transient state suppression circuit, high tension protection circuit, selection circuit, induction take
Electric module and energy storage capacitor are packaged in a metal shielding box, and the metal is extended in then fiber interface module connection one
The communication optical fiber of shielding box.
The utility model has the advantages that the automatism isolation formula intelligent and safe switchgear of the utility model, will be arranged an electromagnetic lock on grounding shaft,
To pass in and out in cable tie electricity situation, realize locked to grounding shaft；One automatism isolation controller is electrically connected to electromagnetic lock, realizes electromagnetism
The control of lock；For ensure charge locking stability, the automatism isolation controller by setting CT electricity-fetching module, detection module and
Intelligent controller connecting the two realizes and automatically generates driving electric energy, eliminates the additional demand for being laid with direct current supply line,
It is truly realized passive detection conveying circuit voltage value, drives electromagnetic lock automatically；Meanwhile intelligent controller is controlled by relay
Interface connects a selection circuit, to select the leading-out terminal at induction coil difference the number of turns, copes under different voltages state, will
Different leading-out terminals select an access induction electricity-fetching module, and then avoid cable under test voltage value variation it is excessive, cause CT to take
The problem of electric module input power is excessively high, and CT electricity-fetching module is overheated or burnt；Meanwhile the technical solution, it can rationally be arranged and take electricity
The circuit of coil has avoided the problem of induction coil magnetic saturation is generated heat.
Detailed description of the invention
Fig. 1 shows the utility model automatism isolation formula intelligent and safe switch cabinet grounding switch locking control principle drawing；
Fig. 2 shows the utility model intelligent controller structure schematic diagrams；
Fig. 3 shows the utility model automatism isolation controller installation schematic illustration；
Fig. 4 shows the utility model CT electricity-fetching module circuit diagram.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in connection with fig. 1, this embodiment offers a kind of automatism isolation formula intelligent and safe switchgears, specifically include envelope
The metal cabinet closed, isolation is provided with bus-bar room, handcart room and outlet room from top to bottom in metal cabinet, sets in handcart room
It is equipped with control cabinet, three-phase vacuum pole and electric chassis truck, control cabinet to be fixedly installed on electric chassis truck, three-phase vacuum pole
Column is set to the rear portion of control cabinet；Bus-bar room is equipped with and the close-fitting three-phase static contact of the three-phase vacuum pole.
It is equipped with the three-phase cooperated with the three-phase vacuum pole in the outlet room and draws contact, each extraction contact is equipped with
One disengaging cable (part in Fig. 3 marked as 2)；And in the outlet room to should three-phase draw contact position, be additionally provided with one
Earthing switch, the earthing switch are set on a grounding shaft.The metal cabinet structure, the reality essentially identical with prior art construction
Example is applied to repeat no more.
In conjunction with shown in Fig. 1 to Fig. 3, in this embodiment, which is equipped with an electromagnetic lock, it is preferred that the electromagnetic lock
It is the normally opened lockset of solenoid valve control.To realize the control to electromagnetic lock, which further includes providing automatism isolation control
Device, the automatism isolation controller include CT electricity-fetching module, detection module and intelligent controller.
From Figure 2 it can be seen that the intelligent controller includes a MCU processor, which is also electrically connected with a signal acquisition
Interface, a relay control interface and a fiber interface module.The relay control interface is electrically connected to the electromagnetic lock, control
Sealed grounding shaft under its electriferous state；In this embodiment, which includes a solenoid valve and a pin member, the grounding shaft
Upper opened and closed positions, the corresponding pin member is equipped with a jack, sealed to realize minimum electrical energy drive.
The intelligent controller is soldered and is set on a pcb board, and the pcb board is set in the metal shielding box of a ground connection,
And then play the role of anti-strong electromagnetic；Meanwhile the fiber interface module can also connect one and extend the metal shielding box
Communication optical fiber, for being connect with external monitoring network or internet communication.
A memory can also be arranged in the intelligent controller of the embodiment, and the memory is for interval sampling storage detection electricity
Parameter is pressed, it is intelligent to realize detection: i.e. after equipment installation, dynamic acquisition voltage parameter, to obtain normal voltage after the filtering
Standard value；Real-time collection voltages data exceed standard value, as fault message, exportable alarm parameters；The memory, realizes
The troublesome operation manually set is exempted in intelligent learning.
As seen from Figure 3, which is the electronic type voltage transformer of capacitance partial pressure comprising a capacitive divider,
The capacitive divider includes the derided capacitors mutually concatenated, which is electrically connected on the disengaging cable 2, another
End ground connection；The signal processing module includes sequentially connected filter preprocessing circuit, A/D conversion circuit and data processing core
Piece；The filter preprocessing circuit accesses between two derided capacitors, which is electrically connected to the signal acquisition interface.
In conjunction with Fig. 3 and Fig. 4, which includes an induction coil 1；The induction coil 1 is sheathed on disengaging cable 2
On, and the rear and front end of induction coil 1 is respectively provided with a connecting terminal, two connecting terminals parallel connection have transient state suppression circuit with
And high tension protection circuit: the transient state suppression circuit includes that transient voltage inhibits pipe or two oppositely arranged zener diodes,
The transient voltage inhibits the both ends of pipe to be respectively electrically connected to two connecting terminals, is released be shorted for the high voltage to moment
It puts；The high tension protection circuit includes the first normally opened relay 33, the normally opened connecting terminal of the two of first normally opened relay 33 point
It is not electrically connected to two connecting terminals, and the control terminal of first normally opened relay is electrically connected to the relay control interface (in Fig. 4
It is not shown), to realize that high pressure is closed automatically, realize intelligentized high voltage protective.
Multiple leading-out terminals 11 are also led at the different coil turns of the induction coil 1, all leading-out terminals are parallel
It is connected to a selection circuit, and an induction electricity-fetching module, and the selection circuit and the relay are electrically connected to by the selection circuit
The electrical connection of device control interface:
On the selection circuit, corresponding each connecting terminal is respectively equipped with one second normally opened relay；It is each this second often
Open relay is respectively electrically connected to the relay control interface, and in turn, which, which detects voltage by detection module, joins
Number, to be adaptively closed one of place normally opened relay, accesses different coils, it is ensured that induction electricity-fetching module work
Stability；In this embodiment, which is packaged on chip 3, which is equipped with and is respectively connected to each exit
The I/O wiring interface of son 11, and chip 3 is additionally coupled to relay control interface 31.
To realize the starting after low current starting or electricity accumulating unit corrupted, two connecting terminals of the induction coil 1
In: wherein the connecting terminal is electrically connected to the induction electricity-fetching module, and another connecting terminal is electrically connected to the selection circuit, and
On the selection circuit, the corresponding connecting terminal is equipped with a normally closed relay 32, which is electrically connected to relay control
Interface (is not shown) in Fig. 4.
To ensure intelligent controller job stability, induction electricity-fetching module current/voltage unstability interference is avoided, further includes one
It is electrically connected to the energy storage capacitor of the intelligent controller, the energy storage capacitor and the intelligent controller also take electric mould with the induction respectively
Block electrical connection.
In this embodiment, the intelligent controller, signal processing module, transient state circuit, high tension protection circuit, selection always
Circuit, induction electricity-fetching module and energy storage capacitor are packaged in a metal shielding box, to realize the encapsulation of minimum, and are examined
22 length of groups of cables is surveyed to minimize；In the embodiment, by the fiber interface module of intelligent controller, it is noiseless to will test information
Output realizes unit cable output, and optical cable dosage is greatly reduced, and failure rate is greatly lowered.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (6)
1. a kind of automatism isolation formula intelligent and safe switchgear, including closed metal cabinet, it is isolated from top to bottom in metal cabinet
It is provided with bus-bar room, handcart room and outlet room, it is characterised in that:
It is provided with control cabinet, three-phase vacuum pole and electric chassis truck, control cabinet in handcart room and is fixedly installed on electric chassis
Che Shang, three-phase vacuum pole are set to the rear portion of control cabinet；Bus-bar room is equipped with and the three-phase vacuum pole close-fitting three
Phase static contact；
Be equipped with three-phase extraction contact cooperate with the three-phase vacuum pole in the outlet room, each extraction contact be equipped with one into
Cable out；And in the outlet room to should three-phase draw contact position, be additionally provided with an earthing switch, the earthing switch be set to one
On grounding shaft, which is equipped with an electromagnetic lock；
It further include an automatism isolation controller, which includes CT electricity-fetching module, detection module and intelligence control
Device processed；
The intelligent controller includes a MCU processor, and the signal acquisition interface and relay that are electrically connected with the MCU processor
Control interface, the electromagnetic lock are electrically connected to the relay control interface；
The detection module includes capacitive divider and signal processing module interconnected, which is electrically connected to this
Cable is passed in and out, which is also electrically connected to the signal acquisition interface；
The CT electricity-fetching module includes an induction coil being set on disengaging cable；The rear and front end of the induction coil is respectively provided with one and connects
Line terminals, two connecting terminals parallel connection have transient state suppression circuit and high tension protection circuit；
Multiple leading-out terminals are also led at the induction coil difference coil turn, all leading-out terminals are connected in parallel to a choosing
Circuit is selected, and an induction electricity-fetching module, and the selection circuit and the relay control interface are electrically connected to by the selection circuit
Electrical connection；
Further include an energy storage capacitor for being electrically connected to the intelligent controller, the energy storage capacitor and the intelligent controller also respectively with
Induction electricity-fetching module electrical connection.
2. automatism isolation formula intelligent and safe switchgear according to claim 1, it is characterised in that: the capacitive divider includes
The derided capacitors mutually concatenated, the signal processing module include sequentially connected filter preprocessing circuit, A/D conversion circuit and
Data processing chip；The filter preprocessing circuit accesses between two derided capacitors, which is electrically connected to the signal
Acquisition interface.
3. automatism isolation formula intelligent and safe switchgear according to claim 1, it is characterised in that:
The transient state suppression circuit includes that transient voltage inhibits pipe, which inhibits the both ends of pipe to be respectively electrically connected to two should
Connecting terminal；
The high tension protection circuit includes the first normally opened relay, which is electrically connected to relay control and connects
Mouthful.
4. automatism isolation formula intelligent and safe switchgear according to claim 1, it is characterised in that: right on the selection circuit
Each leading-out terminal is answered, one second normally opened relay is respectively equipped with；Each second normally opened relay, is respectively electrically connected to this
Relay control interface.
5. automatism isolation formula intelligent and safe switchgear according to claim 4, it is characterised in that: wherein connecting terminal
It is electrically connected to the induction electricity-fetching module；Another connecting terminal is electrically connected to the selection circuit, and on the selection circuit, corresponding to be somebody's turn to do
Connecting terminal is equipped with a normally closed relay, which is electrically connected to relay control interface.
6. automatism isolation formula intelligent and safe switchgear according to claim 1, it is characterised in that: the MCU processor is also electric
It is connected with a memory and a fiber interface module；The intelligent controller, signal processing module, transient state suppression circuit, high pressure
Protection circuit, selection circuit, induction electricity-fetching module and energy storage capacitor are packaged in a metal shielding box, and then the optical fiber connects
The communication optical fiber of the metal shielding box is extended in mouth mold block connection one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183540.4U CN209217558U (en) | 2018-12-25 | 2018-12-25 | A kind of automatism isolation formula intelligent and safe switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183540.4U CN209217558U (en) | 2018-12-25 | 2018-12-25 | A kind of automatism isolation formula intelligent and safe switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209217558U true CN209217558U (en) | 2019-08-06 |
Family
ID=67465935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822183540.4U Active CN209217558U (en) | 2018-12-25 | 2018-12-25 | A kind of automatism isolation formula intelligent and safe switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209217558U (en) |
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2018
- 2018-12-25 CN CN201822183540.4U patent/CN209217558U/en active Active
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