CN213072114U

CN213072114U - Circuit structure of electric main wiring of power plant

Info

Publication number: CN213072114U
Application number: CN202020810584.XU
Authority: CN
Inventors: 王伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-04-27
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a circuit structure of electric main connection of power plant, including first wiring circuit group, second wiring circuit group, electric main connection and generating line, first wiring circuit group and second wiring circuit group are the symmetry subsection, and first wiring circuit group includes current transformer group, three-phase input/output system and first isolator, and current transformer group includes the current transformer of triplex row three. The utility model discloses a circuit structure of electric main connection of power plant, through first wiring circuit group and the second wiring circuit group that is equipped with, when needs are in maintenance to power plant interface terminal data acquisition, avoided data repetition storage to cause the data redundant miscellaneous, produce the disaster of data dimension, can control the circuit safety of each node through a plurality of isolator that is equipped with in the circuit, make things convenient for the staff to the maintenance of each node of power plant, can be used for distributing the electric energy through the circuit breaker that is equipped with.

Description

Circuit structure of electric main wiring of power plant

Technical Field

The utility model relates to an electric field of power plant, in particular to circuit structure of electric main connection of power plant.

Background

A power plant is a plant that converts various primary energy zd stored in the nature into electric energy (secondary energy). At the end of the 19 th century, with the growing demand for electricity, the idea of building electricity production centers began to be proposed. The development of motor manufacturing technology, the expansion of electric energy application range, the rapid increase of the demand of electricity for production and the consequent generation of power plants. There are several ways of generating electricity in current power plants: nuclear power plants, which rely on coal, oil or gas driven turbines for power generation, are called thermal power plants, which rely on hydroelectric power generation, and also on small power plants, which rely on solar (photovoltaic), wind and tidal power generation, whereas nuclear power plants, which use nuclear fuel as the energy source, have played an increasing role in many countries of the world.

The data that current power plant need be gathered to a plurality of terminals in the power plant at the in-process of maintenance are looked over, can lead to the computational efficiency to hang down because of the too big dimension calamity that produces in model data sample space when data duplicate storage calculates, be arranged in the power plant simultaneously and supply power and give many users, all can cause the influence to the user if any damage takes place for the power plant, for this reason, we propose the circuit structure of the electric main wiring of power plant.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a circuit structure of electric main wiring in power plant, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit structure of electric main connection of power plant, includes first wiring circuit group, second wiring circuit group, electric main connection and generating line, first wiring circuit group and second wiring circuit group are the symmetry subsection.

Preferably, the first connection circuit group comprises a current transformer group, a three-phase input/output system and a first isolating switch, the current transformer group comprises three rows and three columns of current transformers, one end of the current transformer group is connected with one end of the first isolating switch, the other end of the first isolating switch is connected with the three-phase input/output system, and the other end of the current transformer group is connected with one end of a transformer.

Preferably, one side of the transformer is connected with one end of a first current transformer and one end of a second current transformer respectively, the other side of the transformer is connected with a first lightning rod and a third circuit breaker, the bottom of the transformer is connected with one end of the second circuit breaker and a second lightning rod, and the other ends of the first lightning rod and the second lightning rod are grounded.

Preferably, the other end of the second circuit breaker is connected with two third current transformers, two the other end of the third current transformer is connected with a first plug, the other end of the third circuit breaker is connected with two fourth current transformers, and the other end of the fourth current transformer is connected with a second plug.

Preferably, the one end of electric main connection is connected with first generator, still connect the other end of second plug and the isolating plug that corresponds with the second plug on the second wiring circuit group through isolator respectively on the electric main connection, the one end of bus is connected with the second generator, first wiring circuit group and second wiring circuit group link to each other with electric main connection and bus respectively through symmetrical second isolator and third isolator.

Preferably, the electric main wiring is further connected with two fifth current transformers and two sixth current transformers respectively, plugs are installed at the joints of the fifth current transformers and the sixth current transformers and the electric main wiring, the other ends of the fifth current transformers are connected with a fourth circuit breaker, and the other ends of the sixth current transformers are connected with a fifth circuit breaker.

Preferably, the other ends of the fourth circuit breaker and the fifth circuit breaker are respectively connected with a fourth isolating switch and a fifth isolating switch, and a sixth isolating switch is connected between the other end of the fourth isolating switch and the other end of the fifth isolating switch.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through the first and second connection circuit groups, when data acquisition is required to be carried out on the interface terminal of the power plant during maintenance of the power plant, data redundancy caused by repeated storage of data and data dimension disaster are avoided, and only the interface terminal data of any one of the first and second connection circuit groups can be acquired;

2. the circuit safety of each node can be controlled through a plurality of isolating switch who is equipped with in the circuit, make things convenient for the staff to overhaul each node of power plant, the circuit breaker through being equipped with can be used for distributing the electric energy, start asynchronous motor infrequently, carry out the protection to power supply line and motor etc. can automatic cutout circuit when they take place serious overload or short circuit and undervoltage etc. trouble, protection power plant power consumption load safety, can protect the equipment in the power plant through the lightning rod that is equipped with and avoid receiving the thunderbolt, cause dangers such as conflagration.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the circuit structure of the main electrical connection wire of the power plant according to the present invention;

in the figure: 1. a current transformer group; 2. a three-phase input/output system; 3. a first isolation switch; 4. a first circuit breaker; 5. a transformer; 6. a bus bar; 7. a first current transformer; 8. a second current transformer; 9. a first lightning rod; 10. a second lightning rod; 11. a second circuit breaker; 12. a third circuit breaker; 13. a third current transformer; 14. a fourth current transformer; 15. a first plug; 16. a second plug; 17. an electrical main connection; 18. a first generator; 19. a second generator; 20. a second isolation switch; 21. a third isolating switch; 22. a fifth current transformer; 23. a sixth current transformer; 24. a fourth circuit breaker; 25. a fifth circuit breaker; 26. a fourth isolator switch; 27. a fifth isolator switch; 28. a sixth disconnecting switch; 29. a first wiring circuit group; 30. and a second wiring circuit group.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1

As shown in figure 1, the circuit structure of the electric main connection of the power plant comprises a first connection circuit group (29), a second connection circuit group (30), an electric main connection (17) and a bus (6), wherein the first connection circuit group (29) and the second connection circuit group (30) are symmetrically distributed.

One end of the electric main connection (17) is connected with a first generator (18), the electric main connection (17) is connected with the other end of a second plug (16) and an isolation plug corresponding to the second plug (16) on a second connection circuit group (30) through an isolation switch, one end of the bus (6) is connected with a second generator (19), and the first connection circuit group (29) and the second connection circuit group (30) are connected with the electric main connection (17) and the bus (6) through a symmetrical second isolation switch (20) and a symmetrical third isolation switch (30).

Still be connected with two fifth current transformer (22) and two sixth current transformer (23) on electric main connection (17) respectively, the plug is all installed in the junction of fifth current transformer (22) and sixth current transformer (23) and electric main connection (17), and the other end of fifth current transformer (22) is connected with fourth circuit breaker (24), and the other end of sixth current transformer (23) is connected with fifth circuit breaker (25).

By adopting the technical scheme: through first wiring circuit group (29) and second wiring circuit group (30) that are equipped with, when needs are in maintenance to the power plant to power plant interface terminal data acquisition, avoided data repeated storage to cause the data redundant and miscellaneous, produce the disaster of data dimension, can only gather the interface terminal data of any in first wiring circuit group (29) and second wiring circuit (30) group can.

Example 2

First wiring circuit group (29) includes current transformer group (1), three-phase input/output system (2) and first isolator (3), the current transformer that includes three rows and three columns of current transformer group (1), the one end of current transformer group (1) is connected with the one end of first isolator (3), the other end of first isolator (3) is connected with three-phase input/output system (2), the other end of current transformer group (1) is connected with the one end of transformer (5).

One side of the transformer (5) is connected with one end of a first current transformer (7) and one end of a second current transformer (8) respectively, the other side of the transformer (5) is connected with a first lightning rod (9) and a third circuit breaker (12), the bottom of the transformer (5) is connected with one end of a second circuit breaker (11) and a second lightning rod (10), and the other ends of the first lightning rod (9) and the second lightning rod (10) are grounded.

The other end of the second circuit breaker (11) is connected with two third current transformers (13), the other ends of the two third current transformers (13) are connected with a first plug (15), the other end of the third circuit breaker (12) is connected with two fourth current transformers (14), and the other ends of the two fourth current transformers (14) are connected with a second plug (16).

The other ends of the fourth breaker (24) and the fifth breaker (25) are respectively connected with a fourth isolating switch (26) and a fifth isolating switch (27), and a sixth isolating switch is connected between the other end of the fourth isolating switch (26) and the other end of the fifth isolating switch (27).

By adopting the technical scheme: the circuit safety of each node can be controlled through a plurality of isolating switch who is equipped with in the circuit, make things convenient for the staff to overhaul each node of power plant, the circuit breaker through being equipped with can be used for distributing the electric energy, start asynchronous motor infrequently, carry out the protection to power supply line and motor etc. can automatic cutout circuit when they take place serious overload or short circuit and undervoltage etc. trouble, protection power plant power consumption load safety, can protect the equipment in the power plant through the lightning rod that is equipped with and avoid receiving the thunderbolt, cause dangers such as conflagration.

It should be noted that, the utility model relates to a circuit structure of electric main connection of power plant, when in use, when needing to gather the data in the circuit before the maintenance, only need to gather the single group data of first wiring circuit group (29) or second wiring circuit group (30), when one circuit group of first wiring circuit group (29) and second wiring circuit group (30) breaks down, can make another circuit group produce the reserve, do not exert an influence on the generating efficiency of power plant, when the staff needs to overhaul the equipment, only need to control any one of first isolator (3) or second isolator (20), third isolator (21) or fourth isolator (26) or fifth isolator (27) or sixth isolator (28), can all accomplish the overhaul under the condition that the power supply of power plant is not influenced to the utmost extent, can guarantee through first lightning rod (9) and second lightning rod (10) that are equipped with that power plant equipment does not receive the harm of thunder and lightning, guarantee the safety of power plant, can be used for distributing the electric energy through first circuit breaker (4) or second circuit breaker (11) or third circuit breaker (12) or fourth circuit breaker (24) or fifth circuit breaker (25) that are equipped with, infrequently start asynchronous motor, carry out the protection to power supply line and motor etc. when they take place serious overload or short circuit and under-voltage etc. trouble can automatic cutout circuit, protection power plant power consumption load safety.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a circuit structure of electric main connection of power plant, includes first wiring circuit group (29), second wiring circuit group (30), electric main connection (17) and bus (6), a serial communication port, first wiring circuit group (29) and second wiring circuit group (30) are the symmetry subsection, still be connected with two fifth current transformer (22) and two sixth current transformer (23) on electric main connection (17) respectively, fifth current transformer (22) with the plug is all installed with the junction of electric main connection (17) in sixth current transformer (23), the other end of fifth current transformer (22) is connected with fourth circuit breaker (24), the other end of sixth current transformer (23) is connected with fifth circuit breaker (25), first wiring circuit group (29) includes current transformer group (1), The three-phase input/output system (2) and the first isolating switch (3), the current transformer that includes three rows and three columns of current transformer group (1), the one end of current transformer group (1) is connected with the one end of first isolating switch (3), the other end of first isolating switch (3) is connected with three-phase input/output system (2), the other end of current transformer group (1) is connected with the one end of transformer (5), one side of transformer (5) is connected with the one end of first current transformer (7) and the one end of second current transformer (8) respectively, the opposite side of transformer (5) is connected with first lightning rod (9) and third circuit breaker (12), the bottom of transformer (5) is connected with the one end of second circuit breaker (11) and second lightning rod (10), the other ends of first lightning rod (9) and second lightning rod (10) are all grounded, the other end of second circuit breaker (11) is connected with two third current transformer (13), two the other end of third current transformer (13) is connected with first plug (15), the other end of third circuit breaker (12) is connected with two fourth current transformer (14), two the other end of fourth current transformer (14) is connected with second plug (16).

2. The circuit structure of an electrical main connection of a power plant according to claim 1, characterized in that: one end of the electric main connection (17) is connected with a first generator (18), the electric main connection (17) is connected with the other end of a second plug (16) through an isolating switch and an isolating plug corresponding to the second plug (16) on a second connection circuit group (30), one end of the bus (6) is connected with a second generator (19), and the first connection circuit group (29) and the second connection circuit group (30) are connected with the electric main connection (17) and the bus (6) through a symmetrical second isolating switch (20) and a symmetrical third isolating switch (21).

3. The circuit structure of an electrical main connection of a power plant according to claim 1, characterized in that: the other ends of the fourth circuit breaker (24) and the fifth circuit breaker (25) are respectively connected with a fourth isolating switch (26) and a fifth isolating switch (27), and a sixth isolating switch (28) is connected between the other end of the fourth isolating switch (26) and the other end of the fifth isolating switch (27).