CN207896645U - A kind of electrical reserve protection of small-sized afterheat generating system - Google Patents
A kind of electrical reserve protection of small-sized afterheat generating system Download PDFInfo
- Publication number
- CN207896645U CN207896645U CN201721730368.9U CN201721730368U CN207896645U CN 207896645 U CN207896645 U CN 207896645U CN 201721730368 U CN201721730368 U CN 201721730368U CN 207896645 U CN207896645 U CN 207896645U
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- block
- conducting
- connection
- conducting block
- connecting plate
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- 238000009413 insulation Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000005619 thermoelectricity Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a kind of electrical reserve protection of small-sized afterheat generating system, including shell, shell one end is equipped with the first connection jaws, the other end is equipped with the second connection jaws, first connection jaws are connected with the first conducting wire, first conducting wire is connected with the first conducting block, second connection jaws are connected with the second conducting wire, second conducting wire is connected with the second conducting block, it is provided with connecting plate above second conducting block and the first conducting block, one end of connecting plate is equipped with the first connection block, the other end is equipped with the second connection block, first connection block is contacted with the first conducting block, second connection block is contacted with the second conducting block；Connecting plate is connected with electromagnet by spring；Accumulator, PLC controller and electric-controlled switch are equipped in shell, accumulator, electric-controlled switch, electromagnet are connected in series with, and current sensor are provided on the first conducting wire, current sensor and electric-controlled switch are connected with PLC controller.When current is excessive, the present apparatus can cut off the outlet line of generator in time, ensure line security.
Description
Technical field
The utility model is related to field of generating equipment, especially a kind of electrical back-up protection dress of small-sized afterheat generating system
It sets.
Background technology
Along with the proposition of the idea one by one such as sustainable development, circular economy, energy-saving and emission-reduction and low-carbon economy, China
Cogeneration industry experienced development course from scratch, from small to large, electrical back protection one in original thermoelectricity system
As include：Low pressure overcurrent, quick-break, overload, under-frequency, overfrequency, the warning of TV broken strings, is lost and is encouraged stator grounding (zero-sequence voltage protection)
Magnetic protection, overexcitation protection, current differential protection etc., thermoelectricity has developed many decades at home, and to this, electrical configuration has become mark
Standard, in emerging cogeneration project, many projects are designed also according to the electrical configurations of previous big thermoelectricity, construct,
Since the form of generator is different, thermoelectricity uses synchronous generator, and in small-sized cogeneration project, it is more selection
Asynchronous generator, then in small-sized cogeneration project if select asynchronous generator while, still according to the electricity of thermoelectricity
Gas there is following defect when configuring：System complex involves great expense；Generator is complicated, high failure rate；To maintenance and maintenance personal
It is required that high；Electrical back protector requires high, the wasting of resources.
In actual operation, it only needs to carry out overcurrent protection using the small-sized afterheat generating system of asynchronous generator, owe
Frequency protection, reverse-power protection, short-circuit protection and fast tripping protection, existing overcurrent protection use general overcurrent protection switch,
Using the principle generated heat and expanded with heat and contract with cold after metal electrification, reaction is not sensitive enough.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of small-sized electrical back-up protection dresses of afterheat generating system
Set, when current is excessive can line disconnection at once, sensitivity is high.
Technical solution adopted by the utility model to solve its technical problems is：After a kind of small-sized afterheat generating system is electrical
Standby protective device, includes the shell of insulation, one end of the shell is provided with the first connection jaws, and the other end is provided with the second wiring
Mouthful, first connection jaws are connected with the first conducting wire, and first conducting wire is connected with the first conducting block, and the second connection jaws are connected with
Second conducting wire, the second conducting wire are connected with the second conducting block, spacing are provided between second conducting block and the first conducting block, and
It is provided with conductive and magnetic conduction connecting plate above second conducting block and the first conducting block, one end of the connecting plate is provided with the
One connection block, the other end are provided with the second connection block, and the first connection block is contacted with the first conducting block, and second is connected to block and the
Two conducting blocks contact；The upper surface of the connecting plate is connected with electromagnet by the spring of one group of insulation；The inside of the shell
It is provided with accumulator, PLC controller and electric-controlled switch, the accumulator, electric-controlled switch and electromagnet are connected in series with, and described
Be provided with current sensor on one conducting wire or the second conducting wire, the current sensor and electric-controlled switch with PLC controller phase
Even.
Further, the shell is the plastic casing of cuboid.
Further, the housing exterior walls are provided with alarm, the alarm, accumulator, electric-controlled switch and electromagnet
It is connected in series with.
Further, the upper surface of first conducting block and the second conducting block is provided with cylindrical groove, and described the
One connection block and the second connection block are cylinder, and the first connection block is inserted into the groove of the first conducting block, and the second connection block is inserted into
The groove of second conducting block.
Further, first conducting block, the second conducting block, the first connection block, the second connection block and connecting plate are
Iron material matter.
Further, the guide post of insulation is provided on the connecting plate, the guide post is slided through connecting plate and with connecting plate
Dynamic cooperation, the spring are arranged in guide post.
The utility model has the beneficial effects that：The present apparatus is mounted on generator by the first connection jaws and the second connection jaws
Outlet line on, under normal circumstances, the first conducting block, the first connection block, connecting plate, the second connection block and the second conducting block
First conducting wire and the second conducting wire are connected, the outlet line normal power supply of generator, current sensor detects the electric current in circuit
It is worth and transmits a signal to PLC controller, when the electric current in circuit is more than safety value, PLC controller control electric-controlled switch closes
It closes, electromagnet, which is powered, generates magnetic field, and connecting plate is moved towards the direction of electromagnet under the magnetic force, the first connection block and the
Two connection blocks leave the first conducting block and the second conducting block, and the outlet line of generator disconnects, and plays the role of protection circuit.This
Device is carried out automatically controlling using PLC controller, can line disconnection in time, high sensitivity.
Description of the drawings
Fig. 1 is the schematic front view of the utility model.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of small-sized electrical reserve protection of afterheat generating system of the utility model, including insulation
Shell 1, shell 1 use the plastic casing of cuboid, one end of the shell 1 to be provided with the first connection jaws 2, and the other end is set
The second connection jaws 3 are equipped with, the first connection jaws 2 and the second connection jaws 3 are used to access the present apparatus outlet line of electricity generation system,
First connection jaws 2 are connected with the first conducting wire 4, and first conducting wire 4 is connected with the first conducting block 5, the connection of the second connection jaws 3
There are the second conducting wire 6, the second conducting wire 6 to be connected with the second conducting block 7, be provided between second conducting block, 7 and first conducting block 5
Spacing, and the top of the second conducting block 7 and the first conducting block 5 is provided with conductive and magnetic conduction connecting plate 8, the connecting plate 8
One end is provided with the first connection block 9, and the other end is provided with the second connection block 10, the first connection block 9 and the first conducting block 5
Contact, the second connection block 10 are contacted with the second conducting block 7, so that the first conducting wire 4 is connected to the second conducting wire 6, normal power supply.The company
The upper surface of fishplate bar 8 is connected with electromagnet 12 by the spring 11 of one group of insulation；The shell 1 be internally provided with accumulator,
PLC controller 13 and electric-controlled switch 14, the accumulator, electric-controlled switch 14 and electromagnet 12 are connected in series with, first conducting wire 4
Or second be provided with current sensor 15 on conducting wire 6, the current sensor 15 and electric-controlled switch 14 are and PLC controller
13 are connected.PLC controller 13, electric-controlled switch 14 and current sensor 15 are all made of existing conventional products, PLC controller
13, external power of computer room can be used in the power supply of electric-controlled switch 14 and current sensor 15, accumulator can also be used as electricity
Source.Current sensor 15 is for detecting the electric current in circuit and transmitting signals to PLC controller 13, and PLC controller 13 is to this
Current signal is compared with the safety value of setting, when electric current is higher than safety value, is controlled electric-controlled switch 14 at once and is closed, electromagnetism
Iron 12, which is powered, generates magnetic field, and connecting plate 8 is moved towards the direction of electromagnet 12 under the magnetic force, the first connection block 9 and the
Two connection blocks 10 leave the first conducting block 5 and the second conducting block 7, and the outlet line of generator disconnects, and plays the work of protection circuit
With.
1 outer wall of the shell is provided with alarm 16, the alarm 16, accumulator, electric-controlled switch 14 and electromagnet 12
It is connected in series with.When electric-controlled switch 14 be closed and, alarm 16 can also be powered, and then send out alarm, notify in time staff into
Row processing.
The upper surface of first conducting block, 5 and second conducting block 7 is provided with cylindrical groove, the first connection block
9 to be connected to block 10 with second be cylinder, and the first connection block 9 is inserted into the groove of the first conducting block 5, and the second connection block 10 is inserted into the
The groove of two conducting blocks 7.Increase contact area, avoids contact with bad.
It is iron material that first conducting block 5, the second conducting block 7, first connection block 9, second, which are connected to block 10 and connecting plate 8,
Matter, electric conductivity and magnetic conductivity are preferable.
The guide post 17 of insulation is provided on the connecting plate 8, the guide post 17 is slided through connecting plate 8 and with connecting plate 8
Cooperation, for the setting of the spring 11 in guide post 17, guide post 17 is that guiding is played the role of in the movement of connecting plate 8, ensures connecting plate 8
Linear motion.
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.
Claims (6)
1. a kind of electrical reserve protection of small-sized afterheat generating system, it is characterised in that：Shell (1) including insulation, it is described
One end of shell (1) is provided with the first connection jaws (2), and the other end is provided with the second connection jaws (3), first connection jaws (2)
It is connected with the first conducting wire (4), first conducting wire (4) is connected with the first conducting block (5), and the second connection jaws (3) are connected with second
Conducting wire (6), the second conducting wire (6) are connected with the second conducting block (7), are set between second conducting block (7) and the first conducting block (5)
It is equipped with spacing, and is provided with conductive and magnetic conduction connecting plate (8) above the second conducting block (7) and the first conducting block (5), it is described
One end of connecting plate (8) is provided with the first connection block (9), and the other end is provided with the second connection block (10), the first connection block
(9) it is contacted with the first conducting block (5), the second connection block (10) is contacted with the second conducting block (7)；The upper table of the connecting plate (8)
Face is connected with electromagnet (12) by the spring (11) of one group of insulation；The shell (1) is internally provided with accumulator, PLC controls
Device (13) processed and electric-controlled switch (14), the accumulator, electric-controlled switch (14) and electromagnet (12) are connected in series with, and described first leads
Current sensor (15) is provided on line (4) or the second conducting wire (6), the current sensor (15) and electric-controlled switch (14) are equal
It is connected with PLC controller (13).
2. a kind of small-sized electrical reserve protection of afterheat generating system as described in claim 1, it is characterised in that：The shell
Body (1) is the plastic casing of cuboid.
3. a kind of small-sized electrical reserve protection of afterheat generating system as described in claim 1, it is characterised in that：The shell
Body (1) outer wall is provided with alarm (16), the alarm (16), accumulator, electric-controlled switch (14) and electromagnet (12) series connection
Connection.
4. a kind of small-sized electrical reserve protection of afterheat generating system as described in claim 1, it is characterised in that：Described
The upper surface of one conducting block (5) and the second conducting block (7) is provided with cylindrical groove, the first connection block (9) and second
It is cylinder to be connected to block (10), and the first connection block (9) is inserted into the groove of the first conducting block (5), and the second connection block (10) is inserted into
The groove of second conducting block (7).
5. a kind of small-sized electrical reserve protection of afterheat generating system as described in claim 1, it is characterised in that：Described
One conducting block (5), the second conducting block (7), the first connection block (9), the second connection block (10) and connecting plate (8) are iron material matter.
6. a kind of small-sized electrical reserve protection of afterheat generating system as described in claim 1, it is characterised in that：The company
The guide post (17) of insulation is provided on fishplate bar (8), the guide post (17) is slidably matched through connecting plate (8) and with connecting plate (8),
The spring (11) is arranged in guide post (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730368.9U CN207896645U (en) | 2017-12-12 | 2017-12-12 | A kind of electrical reserve protection of small-sized afterheat generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730368.9U CN207896645U (en) | 2017-12-12 | 2017-12-12 | A kind of electrical reserve protection of small-sized afterheat generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207896645U true CN207896645U (en) | 2018-09-21 |
Family
ID=63548606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721730368.9U Expired - Fee Related CN207896645U (en) | 2017-12-12 | 2017-12-12 | A kind of electrical reserve protection of small-sized afterheat generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207896645U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488139A (en) * | 2019-09-13 | 2019-11-22 | 国家电网有限公司 | A kind of substation's electricity consumption leak current fault remote alarming device |
| CN111600217A (en) * | 2020-06-16 | 2020-08-28 | 江西明正变电设备有限公司 | Automatic circuit breaking device of high-low voltage power equipment |
| CN116799629A (en) * | 2023-08-28 | 2023-09-22 | 安徽方能电气技术有限公司 | Cable winding and unwinding device for transformer substation machine room |
-
2017
- 2017-12-12 CN CN201721730368.9U patent/CN207896645U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488139A (en) * | 2019-09-13 | 2019-11-22 | 国家电网有限公司 | A kind of substation's electricity consumption leak current fault remote alarming device |
| CN111600217A (en) * | 2020-06-16 | 2020-08-28 | 江西明正变电设备有限公司 | Automatic circuit breaking device of high-low voltage power equipment |
| CN111600217B (en) * | 2020-06-16 | 2021-11-30 | 江西明正变电设备有限公司 | Automatic circuit breaking device of high-low voltage power equipment |
| CN116799629A (en) * | 2023-08-28 | 2023-09-22 | 安徽方能电气技术有限公司 | Cable winding and unwinding device for transformer substation machine room |
| CN116799629B (en) * | 2023-08-28 | 2023-11-07 | 安徽方能电气技术有限公司 | Cable winding and unwinding device for transformer substation machine room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |