CN210183008U - Main backup protection intelligent selection and hopping middle-section switch system in transformer - Google Patents
Main backup protection intelligent selection and hopping middle-section switch system in transformer Download PDFInfo
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- CN210183008U CN210183008U CN201920916493.1U CN201920916493U CN210183008U CN 210183008 U CN210183008 U CN 210183008U CN 201920916493 U CN201920916493 U CN 201920916493U CN 210183008 U CN210183008 U CN 210183008U
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Abstract
The utility model discloses a section switch system in jump is selected to reserve protection intelligence in main change, including the CPU treater of being connected with every generating line, the CPU treater is used for receiving the electric current that circulates on the generating line, the output of a plurality of CPU treater corresponds respectively and is connected with the relay, every relay all is connected with a plurality of sectionalized circuit, the relay is according to the break-make of the generating line current information control sectionalized circuit that the CPU treater received, and the relay also can be according to the break-make of the generating line current information control generating line that the CPU treater received, all be equipped with the protection switch clamp plate on every sectionalized circuit, the switch of relay control protection switch clamp plate; the scheme intelligently inputs the section switch pressing plate needing to be jumped and quits the section switch pressing plate which does not need to be jumped at the same time, manual switching is not needed, instability of manual operation is reduced, the requirement of regulation and control integrated remote operation is met, remote control is achieved, and efficiency is improved.
Description
Technical Field
The embodiment of the utility model provides a relate to transformer load protection technical field, especially relate to a section switch system in jump is selected to reserve protection intelligence in main change.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system, the transformer substation in a power plant is a boosting transformer substation, the boosting transformer substation is used for boosting the electric energy generated by a generator and then feeding the electric energy into a high-voltage power grid, and as the demand of the society for the electricity consumption is larger and larger at present, more and more transformer substations are put into use.
The conventional connection mode of the medium-voltage side of a 500kV main transformer is double-bus double-segmentation, and the conventional connection mode has the advantages that the bus fault power failure range can be reduced, and the power supply reliability is improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a section switch system in jump is selected to reserve protection intelligence in main change adopts the intelligence to drop into the section switch clamp plate that needs the jump, withdraws from the section switch clamp plate that needn't jump simultaneously, does not need the people to throw and move back to solve among the prior art for the control method of throwing and moving back the clamp plate complicated, seriously influence the problem that the load was safe in utilization.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a section switch system in jump is selected to reserve protection intelligence in main transformer, includes a plurality of CPU treater of being connected with every generating line, the CPU treater is used for receiving the electric current of circulation on the generating line, a plurality of the output of CPU treater corresponds respectively and is connected with the relay, every the relay all is connected with a plurality of sectional circuit, the relay is used for the basis the generating line current information control that the CPU treater received the break-make of sectional circuit and be used for the basis the break-make of generating line current information control generating line that the CPU treater received all is equipped with the protection switch clamp plate on the sectional circuit, relay control the switch of protection switch clamp plate.
Furthermore, in the main transformer intermediate backup protection intelligent selection and hopping section switch system, the relay controls the protection switch pressing plate of each section circuit to be disconnected in sequence.
Furthermore, in the main transformer backup protection intelligent selection and hopping section switch system, the relay controls all the protection switch pressing plates of all the section circuits to be disconnected at the same time.
The embodiment of the utility model provides a pair of section switch system in jump is selected to reserve protection intelligence in main change, but the section switch clamp plate that intelligent input needs to jump, withdraw from the section switch clamp plate that needn't jump simultaneously, do not need the people to throw in and withdraw, reduce the instability of manual operation, satisfy the needs of regulation and control integration remote operation, remote control, the efficiency is improved, not only adapt to and 500kV owner change in reserve protection intelligence select the jump, it is also suitable to become two segmentations of 110kV middling pressure side double bus simultaneously to 220kV transformer substation, to the protection device of different producer production, do not need to change, the homoenergetic matches, therefore, the commonality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is the embodiment of the utility model provides a main change in backup protection intelligence selection jump section switch system's that divides schematic diagram.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a section switch system in jump is selected to reserve protection intelligence in main change, the conventional wiring mode of 500kV main change middling pressure side is two segmentations of double bus, when normal operating, two sections generating lines move side by side, when arbitrary section generating line takes place short circuit fault and overhauls, still accessible switching operation makes another generating line keep moving side by side, its advantage is that the power failure scope of reducible generating line trouble, improve the reliability of power supply, two sections load segmentation circuits of same reason move side by side, when arbitrary load segmentation circuit breaks down, then put through another segmentation circuit and keep the power supply to the load.
Because the main transformer protection medium-voltage side backup protection in the prior art needs operators to manually input or withdraw according to the operation mode, when more power supply lines exist, the input pressure plate is easy to withdraw by mistake, the use safety performance is seriously influenced, and the consequence is serious.
Therefore the utility model provides a can intelligent input the section switch clamp plate that needs jump, withdraw from the section switch clamp plate that needn't jump simultaneously, do not need artificially to throw and move back, reduce the instability of artificial operation, satisfy regulation and control integration remote operation's needs, remote control, do not need artificially to throw and move back the clamp plate, raise the efficiency.
Example one
The utility model provides a section switch system in jump is selected to reserve protection intelligence in main transformer, includes the CPU treater of being connected with every generating line, and the output of CPU treater corresponds respectively and is connected with the relay, and every relay all is connected with a plurality of segment circuit, all is equipped with the protection switch clamp plate on every segment circuit, the switch of relay control protection switch clamp plate.
The CPU processor is used for receiving the current flowing on the bus, and the relay controls the on-off of the segmented circuit according to the bus current information received by the CPU processor.
When the CPU processor receives the sudden change of the bus current, the bus is judged to be broken, the relay controls the bus to be disconnected according to the bus current information received by the CPU processor, and the parallel bus realizes continuous and stable power supply.
Example two
The utility model provides a section switch system in jump is selected to reserve protection intelligence in main transformer, includes the CPU treater of being connected with every generating line, and the output of CPU treater corresponds respectively and is connected with the relay, and every relay all is connected with a plurality of segment circuit, all is equipped with the protection switch clamp plate on every segment circuit, the switch of relay control protection switch clamp plate.
The CPU processor is used for receiving the current flowing on the bus, and the relay controls the on-off of the segmented circuit according to the bus current information received by the CPU processor.
When the CPU processor receives that the bus current is increased sharply, the relay can control the protective switch pressing plates of each segmented circuit to be completely disconnected, the current of the CPU processor is changed continuously at the moment, the bus is judged to be short-circuited, the relay controls the disconnection of the bus according to the bus current information received by the CPU processor at the moment, and stable power supply is continued through the parallel bus at the moment.
EXAMPLE III
The utility model provides a section switch system in jump is selected to reserve protection intelligence in main transformer, includes the CPU treater of being connected with every generating line, and the output of CPU treater corresponds respectively and is connected with the relay, and every relay all is connected with a plurality of segment circuit, all is equipped with the protection switch clamp plate on every segment circuit, the switch of relay control protection switch clamp plate.
The CPU processor is used for receiving the current flowing on the bus, and the relay controls the on-off of the segmented circuit according to the bus current information received by the CPU processor.
When the CPU processor receives that the bus current is not changed violently, the relay can control the protective switch pressing plate of each segmented circuit to be disconnected singly and sequentially, when the protective switch pressing plate of the fault segmented circuit is disconnected, the CPU processor receives that the bus current tends to be stable, other segmented circuits keep normal paths, the segmented switch pressing plate needing jumping is switched on, meanwhile, the segmented switch pressing plate which does not need jumping is switched off, manual switching is not needed, control is convenient, and the safety of the whole circuit is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (3)
1. The utility model provides a section switch system in jump is selected to reserve protection intelligence in main transformer, its characterized in that includes a plurality of CPU treater of being connected with every generating line, the CPU treater is used for receiving the electric current of circulation on the generating line, a plurality of the output of CPU treater corresponds respectively and is connected with the relay, every the relay all is connected with a plurality of sectional circuit, the relay is used for the basis the generating line current information control that the CPU treater received the break-make of sectional circuit and be used for the basis the break-make of generating line current information control generating line that the CPU treater received, every all be equipped with the protection switch clamp plate on the sectional circuit, relay control the switch of protection switch clamp plate.
2. The main transformer intermediate backup protection intelligent step-by-step section switch system according to claim 1, wherein said relay controls said protection switch pressing plate of each of said section circuits to be individually and sequentially opened.
3. The main transformer intermediate backup protection intelligent step-by-step section switch system according to claim 1, wherein said relay controls all of said protection switch press plates of each of said section circuits to be simultaneously open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916493.1U CN210183008U (en) | 2019-06-18 | 2019-06-18 | Main backup protection intelligent selection and hopping middle-section switch system in transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916493.1U CN210183008U (en) | 2019-06-18 | 2019-06-18 | Main backup protection intelligent selection and hopping middle-section switch system in transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210183008U true CN210183008U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920916493.1U Active CN210183008U (en) | 2019-06-18 | 2019-06-18 | Main backup protection intelligent selection and hopping middle-section switch system in transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210183008U (en) |
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2019
- 2019-06-18 CN CN201920916493.1U patent/CN210183008U/en active Active
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