CN217087302U - Outgoing line arrangement structure for switching outgoing line intervals in substation - Google Patents
Outgoing line arrangement structure for switching outgoing line intervals in substation Download PDFInfo
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- CN217087302U CN217087302U CN202220252191.0U CN202220252191U CN217087302U CN 217087302 U CN217087302 U CN 217087302U CN 202220252191 U CN202220252191 U CN 202220252191U CN 217087302 U CN217087302 U CN 217087302U
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Abstract
The application relates to high-voltage power transmission and transformation technical field, especially relates to a switching outlet interval's of transformer substation station arrangement structure that is qualified for next round of competitions, includes: the cable outgoing device comprises an outgoing line framework and outgoing line spacing equipment, wherein one end of the outgoing line framework is connected with an ABC three-phase overhead outgoing line, the other end of the outgoing line framework is connected with a corresponding ABC three-phase power cable terminal through the outgoing line spacing equipment, and the outgoing line spacing equipment is connected with the ABC three-phase overhead outgoing line. Compared with the conventional method for switching the interval between the outgoing lines in the station, the method has the advantages that the arrangement mode of the power cable terminals is changed through the post insulators, the safe distance between the outgoing line power cable terminals and the existing overhead outgoing lines in the construction and test processes is guaranteed, the existing lines are not affected and can continue to operate, the power failure time of the lines is shortened, the operation reliability of a power grid is guaranteed, and the economical efficiency is good.
Description
Technical Field
The application relates to the technical field of high-voltage power transmission and transformation, in particular to an outlet wire arrangement structure for switching outlet wire intervals in a substation.
Background
In an electric power system, an electrical partition in a substation refers to a complete circuit including a circuit breaker, a disconnecting switch, a transformer, a lightning arrester and other devices. All electrical units with complete functions are called a compartment, such as an incoming line compartment, an outgoing line compartment, a bus equipment compartment and the like.
With the continuous development of social economy, the power load density is increasing faster and the planning and construction of transformer substations are frequent. Due to the continuous development of the power system, the grid structure of the power grid needs to be adjusted accordingly, the line has the switching interval, and when the switching interval of the line outside the substation cannot be realized, the original substation has the requirement of switching the outgoing line interval inside the substation. The conventional station internal switching interval is adopted to arrange the power cable terminal under the overhead outgoing line, and due to the fact that the construction and withstand voltage test period of the power cable terminal is long and the operation space is needed to be large, the original line cannot normally run, the power failure time is long, and the power grid reliability and economy are greatly influenced.
SUMMERY OF THE UTILITY MODEL
The application provides an outgoing line arrangement structure of a switching outgoing line interval in a substation, which aims to solve the problems that the existing switching interval process occupies large space and time and the economy is poor.
The technical scheme adopted by the application is as follows:
an outlet wire arrangement structure for switching outlet wire intervals in a substation comprises: the cable outgoing device comprises an outgoing line framework and outgoing line spacing equipment, wherein one end of the outgoing line framework is connected with an ABC three-phase overhead outgoing line, the other end of the outgoing line framework is connected with a corresponding ABC three-phase power cable terminal through the outgoing line spacing equipment, and the outgoing line spacing equipment is connected with the ABC three-phase overhead outgoing line;
the outgoing line spacing equipment comprises a post insulator, a voltage transformer and an arrester which are connected through cables, the voltage transformer and the arrester are sequentially arranged in a direction perpendicular to the outgoing line framework, and the bus side of the outgoing line framework is pulled to be parallel to the direction of the outgoing line framework and connected with power cable terminals corresponding to ABC three phases through the post insulator.
Optionally, the outlet spacing device further comprises a circuit breaker, and the circuit breaker is arranged on the bus side of the outlet framework.
Optionally, the outgoing line spacing device further includes a main isolating switch, and the main isolating switch is disposed on the bus side of the outgoing line framework.
Optionally, the outgoing line spacing device further comprises a branch disconnecting switch, and the branch disconnecting switch is arranged on the outgoing line side of the circuit breaker.
Optionally, the sequence of the ABC three-phase overhead outgoing line is as follows: the phase A, the phase B and the phase C are arranged from one side to the other side in sequence.
Optionally, the bus side of the outgoing line framework is pulled to an arrangement structure which is arranged in parallel to the direction of the outgoing line framework and connected with power cable terminals corresponding to the ABC three phases through the post insulators, and the power cable terminals are arranged on two sides below the outgoing line framework.
Optionally, the power cable terminals are arranged on two sides below the outlet framework in the following order: the phase B, the phase A and the phase C are arranged from one side to the other side in sequence.
Optionally, the power cable terminals are arranged on two sides below the outlet framework in the following order: the phase A, the phase C and the phase B are arranged from one side to the other side in sequence.
Optionally, the outgoing line spacing devices correspondingly connected with the ABC three-phase overhead outgoing line through cables are sequentially provided with the lightning arrester and the voltage transformer according to the arrangement of the outgoing line sides.
Optionally, the lightning arrester cables on the phase-a and phase-C lines are connected to the power cable terminals arranged in parallel with the direction of the outgoing line frame through the post insulators, the voltage transformer cables on the phase-B lines are connected to the power cable terminals arranged in parallel with the direction of the outgoing line frame through the post insulators, and the ABC three-phase power cable terminals are arranged in a straight line shape.
The technical scheme of the application has the following beneficial effects:
according to the outgoing line arrangement structure for the switching outgoing line intervals in the substation, the original voltage transformers and the lightning arresters are sequentially arranged in the direction perpendicular to the outgoing line framework, and on the basis that the original arrangement is not changed as much as possible, the bus side of the outgoing line framework is pulled to be parallel to the direction of the outgoing line framework through the post insulators and is connected with the power cable terminals corresponding to the ABC three phases. Compared with the conventional method for switching the interval between the outgoing lines in the station, the method has the advantages that the arrangement mode of the power cable terminals is changed through the post insulators, the safe distance between the outgoing line power cable terminals and the existing overhead outgoing lines in the construction and test processes is guaranteed, the existing lines are not affected and can continue to operate, the power failure time of the lines is shortened, the operation reliability of a power grid is guaranteed, and the economical efficiency is good.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1A is a top view of a prior art arrangement;
FIG. 1B is a cross-sectional view of a prior art arrangement;
FIG. 2 is a top view of an arrangement according to an embodiment of the present application;
FIG. 3A is a schematic view of an A, C-phase arrangement according to an embodiment of the present application;
FIG. 3B is a schematic diagram of a phase B arrangement according to an embodiment of the present application;
illustration of the drawings:
the system comprises a 1-A phase power cable terminal, a 2-C phase power cable terminal and a 3-B phase power cable terminal.
Detailed Description
Referring to fig. 1A and 1B, fig. 1A is a top view and fig. 1B is a cross-sectional view of a prior art arrangement.
The application provides a switching outlet wire interval's outlet wire arrangement structure in transformer substation station includes: the cable outgoing device comprises an outgoing line framework and outgoing line spacing equipment, wherein one end of the outgoing line framework is connected with an ABC three-phase overhead outgoing line, the other end of the outgoing line framework is connected with a corresponding ABC three-phase power cable terminal through the outgoing line spacing equipment, and the outgoing line spacing equipment is connected with the ABC three-phase overhead outgoing line;
the outgoing line spacing equipment comprises a post insulator, a voltage transformer and an arrester which are connected through cables, the voltage transformer and the arrester are sequentially arranged in a direction perpendicular to the outgoing line framework, and the bus side of the outgoing line framework is pulled to be parallel to the direction of the outgoing line framework and connected with power cable terminals corresponding to ABC three phases through the post insulator.
In this embodiment, referring to fig. 2, a top view of an arrangement structure according to an embodiment of the present application is shown. By this illustration, it can be understood that: the application changes the prior ABC three phases to be sequentially arranged out of the line. Although a modification is shown in the drawings, the possibility of other modifications is not excluded, and for example, a B-phase cable may be connected to one side of a C-phase power cable terminal, so as to realize a B-phase, C-phase and a-phase sequentially arranged outlet manner. Accordingly, the drawings in the present application should not be construed as limiting the scope of protection but as an example of the technical idea of the present application, and any arrangement derived from the idea of the present application should be construed as being within the scope of protection claimed in the present application. In order to more clearly understand the technical concept of the present application, reference is made to fig. 3A and 3B, where fig. 3A is a schematic view of an A, C-phase arrangement structure of an embodiment of the present application, and fig. 3B is a schematic view of a B-phase arrangement structure of an embodiment of the present application; through the bridging effect of the post insulators, the ABC three-phase outgoing line side cables are connected with the corresponding A-phase power cable terminal 1, the C-phase power cable terminal 2 and the B-phase power cable terminal 3, and the arrangement sequence and the arrangement direction are changed, so that the purpose of the application is achieved.
Optionally, the outlet spacing device further comprises a circuit breaker, and the circuit breaker is arranged on the bus side of the outlet framework.
Optionally, the outgoing line spacing device further includes a main isolating switch, and the main isolating switch is disposed on the bus side of the outgoing line framework.
Optionally, the outgoing line spacing device further comprises a branch disconnecting switch, and the branch disconnecting switch is arranged on the outgoing line side of the circuit breaker.
Optionally, the sequence of the ABC three-phase overhead outgoing line is as follows: the phase A, the phase B and the phase C are arranged from one side to the other side in sequence.
Optionally, the bus side of the outgoing line framework is pulled to an arrangement structure which is arranged in parallel to the direction of the outgoing line framework and connected with power cable terminals corresponding to the ABC three phases through the post insulators, and the power cable terminals are arranged on two sides below the outgoing line framework.
Optionally, the power cable terminals are arranged on two sides below the outlet framework in the following order: the phase B, the phase A and the phase C are arranged from one side to the other side in sequence.
Optionally, the power cable terminals are arranged on two sides below the outlet framework in the following order: the phase A, the phase C and the phase B are arranged from one side to the other side in sequence.
Optionally, the outgoing line spacing devices correspondingly connected with the ABC three-phase overhead outgoing line through cables are sequentially provided with the lightning arrester and the voltage transformer according to the arrangement of the outgoing line sides.
Optionally, the lightning arrester cables on the phase-a and phase-C lines are connected to the power cable terminals arranged in parallel with the direction of the outgoing line frame through the post insulators, the voltage transformer cables on the phase-B lines are connected to the power cable terminals arranged in parallel with the direction of the outgoing line frame through the post insulators, and the ABC three-phase power cable terminals are arranged in a straight line shape.
According to the outgoing line arrangement structure for the switching outgoing line intervals in the substation, the original voltage transformers and the lightning arresters are sequentially arranged in the direction perpendicular to the outgoing line framework, and on the basis that the original arrangement is not changed as much as possible, the bus side of the outgoing line framework is pulled to be parallel to the direction of the outgoing line framework through the post insulators and is connected with the power cable terminals corresponding to the ABC three phases. Compared with the conventional method for changing the vertical arrangement of the power cable terminals into the horizontal arrangement, the method ensures the safe distance between the outgoing power cable terminals and the existing overhead outgoing lines in the process of construction and test, ensures that the existing lines are not influenced, can continuously run, reduces the power failure time of the lines, ensures the running reliability of a power grid, and has better economy.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (10)
1. An outgoing line arrangement structure for switching outgoing line intervals in a substation is characterized by comprising: the cable outgoing device comprises an outgoing line framework and outgoing line spacing equipment, wherein one end of the outgoing line framework is connected with an ABC three-phase overhead outgoing line, the other end of the outgoing line framework is connected with a corresponding ABC three-phase power cable terminal through the outgoing line spacing equipment, and the outgoing line spacing equipment is connected with the ABC three-phase overhead outgoing line;
the outgoing line spacing equipment comprises a post insulator, a voltage transformer and an arrester which are connected through cables, the voltage transformer and the arrester are sequentially arranged in a direction perpendicular to the outgoing line framework, and the bus side of the outgoing line framework is pulled to be parallel to the direction of the outgoing line framework and connected with power cable terminals corresponding to ABC three phases through the post insulator.
2. The outlet arrangement structure for the switching outlet intervals in the substation according to claim 1, wherein the outlet interval device further comprises a circuit breaker, and the circuit breaker is arranged on a bus side of the outlet framework.
3. The outlet layout structure of the switching outlet interval in the substation according to claim 1, wherein the outlet interval device further comprises a main isolating switch, and the main isolating switch is arranged on the bus side of the outlet framework.
4. The outlet layout structure of the switching outlet interval in the substation according to claim 2, wherein the outlet interval device further comprises a sub-isolating switch, and the sub-isolating switch is disposed on the outlet side of the circuit breaker.
5. The outlet arrangement structure of switching outlet intervals in a substation according to claim 1, wherein the sequence of the ABC three-phase overhead outlets is as follows: the phase A, the phase B and the phase C are arranged from one side to the other side in sequence.
6. The substation switching outlet interval outlet arrangement structure according to claim 5, wherein the bus side of the outlet frame is pulled by the post insulator into an arrangement structure which is arranged in parallel to the direction of the outlet frame and connected to power cable terminals corresponding to ABC three phases, and the power cable terminals are arranged on both sides below the outlet frame.
7. The outlet layout structure of switching outlet intervals in a substation according to claim 6, wherein the power cable terminals are arranged on both sides below the outlet frame in the following order: the phase B, the phase A and the phase C are arranged from one side to the other side in sequence.
8. The outlet layout structure of switching outlet intervals in a substation according to claim 6, wherein the power cable terminals are arranged on both sides below the outlet frame in the following order: the phase A, the phase C and the phase B are arranged from one side to the other side in sequence.
9. The outlet arrangement structure of switching outlet intervals in a substation station according to claim 1, wherein the outlet interval devices correspondingly connected with the ABC three-phase overhead outlet line through cables are sequentially arranged as an arrester and a voltage transformer according to outlet sides.
10. The outlet arrangement structure of the switching outlet interval in the substation according to claim 9, characterized in that the arrester cables on the a-phase and C-phase lines are connected to the power cable terminals arranged in parallel with the direction of the outlet frame through post insulators, the voltage transformer cables on the B-phase lines are connected to the power cable terminals arranged in parallel with the direction of the outlet frame through post insulators, and the ABC three-phase power cable terminals are arranged in a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252191.0U CN217087302U (en) | 2022-01-30 | 2022-01-30 | Outgoing line arrangement structure for switching outgoing line intervals in substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252191.0U CN217087302U (en) | 2022-01-30 | 2022-01-30 | Outgoing line arrangement structure for switching outgoing line intervals in substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087302U true CN217087302U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220252191.0U Active CN217087302U (en) | 2022-01-30 | 2022-01-30 | Outgoing line arrangement structure for switching outgoing line intervals in substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087302U (en) |
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2022
- 2022-01-30 CN CN202220252191.0U patent/CN217087302U/en active Active
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