CN219918422U - Novel 10KV power supply and distribution system - Google Patents
Novel 10KV power supply and distribution system Download PDFInfo
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- CN219918422U CN219918422U CN202320955231.2U CN202320955231U CN219918422U CN 219918422 U CN219918422 U CN 219918422U CN 202320955231 U CN202320955231 U CN 202320955231U CN 219918422 U CN219918422 U CN 219918422U
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- 238000002955 isolation Methods 0.000 claims abstract description 76
- 238000012423 maintenance Methods 0.000 description 11
- 238000011835 investigation Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model relates to the technical field of power supply, in particular to a novel 10KV power supply and distribution system, which comprises: two ends of the 1# isolation cabinet are respectively connected with a 1# bus and a 1# bus-bar cabinet, and the other end of the 1# bus-bar cabinet is connected with a 4# bus; two ends of the 3# bus-bar cabinet are respectively connected with the 4# bus and the 3# isolation cabinet, and the other end of the 3# isolation cabinet is connected with the 3# bus; two ends of the 4# isolation cabinet are respectively connected with a 3# bus and a 4# bus, and the other end of the 4# bus is connected with a 5# bus; two ends of the 2# bus-bar cabinet are respectively connected with the 5# bus and the 2# isolation cabinet, and the other end of the 2# isolation cabinet is connected with the 2# bus. The utility model carries out centralized classification control on equipment belonging to different areas or systems, improves the traditional two-section bus power supply mode of the 10KV power distribution room into multi-section bus power supply, realizes independent overhaul of circuits and equipment in each area, and avoids mutual influence.
Description
Technical Field
The utility model relates to the technical field of power supply, in particular to a novel 10KV power supply and distribution system.
Background
According to the existing 10KV power supply and distribution technology, a 10KV power distribution room is generally provided with two paths of incoming line power supplies. The power supply bus is divided into a first section and a second section, and the connection or isolation is carried out between the first section bus and the second section bus through the bus connection and the bus connection isolation cabinet. During normal operation, the bus-tie and the bus-tie isolation cabinet are disconnected, and the two lines of incoming lines are switched on to supply power for the first section bus and the second section bus respectively. All the distribution room loads are uniformly distributed on the first section bus and the second section bus. When the first section bus and the second section bus are required to be overhauled and maintained respectively, the corresponding buses and the carried loads are required to be all withdrawn, and the incoming line of the corresponding buses can be implemented after the disconnection and power failure. In addition, the power distribution system with only one line of incoming power supply and one section of bus is only suitable for places with fewer load devices and low requirements on power supply safety.
With the development of economy and the need for large-scale operations, centralized control and management of production facilities is becoming more and more common. Taking an iron-making plant as an example, three adjacent iron-making blast furnaces are arranged in the plant, and the overhaul period of the three blast furnaces is generally from 2 to 3 months. The circulating water supply systems matched with the three blast furnaces are arranged in the same area in a centralized manner, the electric power system is provided and controlled by the corresponding water pump room high distribution room, the ore tank feeding systems matched with the three blast furnaces are arranged in the same area in a centralized manner, and the electric power system is provided and controlled by the corresponding ore tank high distribution room. And the first section bus load and the second section bus load are respectively attached to the three blast furnaces in the high distribution chamber of the water pump room and the high distribution chamber of the ore tank. In reality, if the first section bus and the second section bus of the distribution room are subjected to power failure maintenance and repair respectively, normal production operation of the three blast furnaces is influenced simultaneously, and the three blast furnaces are subjected to production shutdown maintenance simultaneously, so that all production lines on the upstream and the downstream are influenced. The long-term operation of the first and second buses in the high-power distribution room is difficult in power failure, normal maintenance of equipment and hidden trouble investigation and removal are affected, and adverse effects are brought to the safe and stable operation of the power system.
The Chinese patent discloses a three-power switching station, and the CN103199444A patent adds a third incoming line power supply in a power distribution system as a standby power supply of a first incoming line power supply and a second incoming line power supply, so that the power supply reliability is improved; however, an outlet cabinet is not arranged under the third section of bus, and the distribution mode of the electric load is still a traditional two-section bus, so that the problems of power failure and difficult maintenance of the distribution bus cannot be solved.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model performs centralized classification control on equipment belonging to different areas or systems, improves the traditional two-section bus power supply mode of the 10KV power distribution room into multi-section bus power supply, realizes independent overhaul of circuits and equipment in each area, and avoids mutual influence.
The technical scheme adopted by the utility model is as follows: a novel 10KV power supply and distribution system, comprising: the system comprises a 1-5 th busbar, first to fourth isolation busbars, a 1-4 th isolation cabinet and a 1-4 th busbar cabinet, wherein two ends of the 1# isolation cabinet are respectively connected with the 1# busbar and the 1# busbar cabinet, and the other end of the 1# busbar cabinet is connected with the 4# busbar; two ends of the 3# bus-bar cabinet are respectively connected with the 4# bus and the 3# isolation cabinet, and the other end of the 3# isolation cabinet is connected with the 3# bus; two ends of the 4# isolation cabinet are respectively connected with a 3# bus and a 4# bus, and the other end of the 4# bus is connected with a 5# bus; and two ends of the 2# bus-bar cabinet are respectively connected with the 5# bus-bar and the 2# isolation cabinet, the other end of the 2# bus-bar cabinet is connected with the 2# bus-bar, and equipment overhauling of three different areas or systems and overhauling of different buses, the isolation cabinet, the bus-bar cabinet and the outgoing line cabinet are realized by controlling the switches of the different bus-bar cabinets.
Further, the method further comprises the following steps: the 1 st-2 nd inlet wire cabinet, 1# inlet wire cabinet is connected with 4# generating line, and 2# inlet wire cabinet is connected with 5# generating line, and two inlet wire cabinets access two way independent power respectively for the equipment power supply of three different regions or systems.
Further, the method further comprises the following steps: and 1-3 outlet cabinet groups, wherein each outlet cabinet group comprises a plurality of outlet cabinets, and the outlet cabinets are used for accessing loads, namely equipment of three different areas or systems.
Further, the method further comprises the following steps: first to fourth isolation bus bars, the first isolation bus bar is used for connecting 1# isolation cabinet and 1# bus bar, the second isolation bus bar is used for connecting 2# isolation cabinet and 2# bus bar, the third isolation bus bar is used for connecting 3# isolation cabinet and 3# bus bar, and the fourth isolation bus bar is used for connecting 4# isolation cabinet and 4# bus bar.
Further, the model of the incoming line cabinet, the isolation cabinet and the bus-bar cabinet are KYN28-12.
The utility model has the beneficial effects that:
the equipment belonging to different areas or systems is respectively arranged on the 1# bus, the 2# bus and the 3# bus, and the 1# bus, the 2# bus and the 3# bus can be subjected to power failure maintenance, hidden danger investigation and the like under the condition that the operation of other two sections of bus load equipment is not affected through corresponding operation.
Drawings
FIG. 1 is a diagram of a three-section bus power supply and distribution connection of the present utility model to equipment from three different areas;
fig. 2 is a diagram of a prior art power supply and distribution connection to equipment from three different areas.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings.
As shown in fig. 2, in the prior art, two sections of buses are provided for power supply and distribution connection diagrams from three different areas, and if the power supply and distribution connection diagrams are distributed on the two sections of buses, the power supply and distribution connection diagrams from the three different areas or systems cannot be independently and respectively controlled, and all the equipment is difficult to intensively cut off due to production requirements. And the trouble is brought to equipment maintenance and hidden trouble investigation.
As shown in fig. 1, the present utility model provides a novel 10KV power supply and distribution system, comprising: 1# bus, 2# bus, 3# bus, 4# bus, 5# bus, first isolated bus, second isolated bus, third isolated bus, fourth isolated bus, 1# isolated cabinet, 2# isolated cabinet, 3# isolated cabinet, 4# isolated cabinet, 1# bus-tie cabinet, 2# bus-tie cabinet, 3# bus-tie cabinet, 4# bus-tie cabinet, 1# incoming cabinet, 2# incoming cabinet, 1# bus-lower outgoing cabinet is 1-1 outgoing cabinet to 1-N outgoing cabinet, N total; and a plurality of wire outlet cabinets under the No. 2 buses and a plurality of wire outlet cabinets under the No. 3 buses, wherein the wire outlet cabinets under the buses belong to different independent areas or systems.
The 1# bus is connected with the 1# isolation cabinet; the No. 2 bus is connected with the No. 2 isolation cabinet; the 3# bus is connected with the 3# isolation cabinet and the 4# isolation cabinet, and a 1# incoming line cabinet, a 1# bus-bar cabinet and a 3# bus-bar cabinet are arranged below the 4# bus; be provided with 2# inlet wire cabinets under the 5# generating line, 2# female cabinet that allies oneself with, 4# female cabinet that allies oneself with. Arranging a 1# bus-connected cabinet and a 3# bus-connected cabinet under a 4# bus; the purpose of setting the 2# bus-tie cabinet and the 4# bus-tie cabinet under the 5# bus is to ensure the safety of the operation process, when the power failure is carried out on the segmented bus, the operation of shaking the breaker to a test position through the opening of the breaker corresponding to the bus-tie cabinet can be carried out, so that the operation of the follow-up corresponding isolation cabinet is ensured, and the situation that the main loop power supply is not powered is realized.
The model of the incoming line cabinet and the isolation cabinet are KYN28-12.
Further comprises: the first isolation bus is connected with the 1# bus-bar cabinet and the 1# isolation cabinet; the second isolation bus is connected with the 2# bus-bar cabinet and the 2# isolation cabinet; the third isolated bus is connected with the 3# bus-bar cabinet and the 3# isolated cabinet; and a fourth isolated bus connected with the 4# bus-bar cabinet and the 4# isolated cabinet.
Further comprises: a plurality of outlet cabinets for supplying power to the 1# blast furnace load are arranged under the 1# bus. A plurality of outlet cabinets for supplying power to the 2# blast furnace load are arranged under the 2# bus; a plurality of outlet cabinets for supplying power to the 3# blast furnace load are arranged under the 3# bus; the outlet cabinets under the buses belong to different blast furnace systems.
When the 1# bus is required to be overhauled, the overhauling time of the 1# blast furnace can be utilized, a plurality of 1# bus outlet cabinets are firstly opened, then the 1# bus-connected cabinets are opened, the 1# bus-connected cabinet circuit breaker is rocked to a test position, and the 1# isolation cabinet is rocked to a disconnection position; under the condition that the power supply operation of other buses is not affected, overhauling and maintenance or hidden trouble investigation are carried out on the No. 1 bus.
When the 2# bus is required to be overhauled, the overhauling time of the 2# blast furnace can be utilized, a plurality of 2# bus outlet cabinets are firstly opened, then the 2# bus-connected cabinets are opened, the 2# bus-connected cabinet circuit breaker is rocked to a test position, and the 2# isolation cabinet is rocked to a disconnection position; under the condition that the power supply operation of other buses is not affected, overhauling and maintenance or hidden trouble investigation are carried out on the No. 2 bus.
When the 3# bus needs to be overhauled, the 3# blast furnace overhauling time can be utilized, a plurality of 3# bus outlet cabinets are firstly opened, and then two operation modes exist:
when the 3# bus is powered by the 1# incoming line cabinet, the 3# bus is disconnected, the 3# bus breaker is rocked to a test position, the 3# isolation cabinet is rocked to a disconnection position, and overhauling maintenance or hidden trouble investigation is carried out on the 3# bus under the condition that other bus power supply operation is not influenced.
When the 3# bus is powered by the 2# incoming line cabinet, the 4# bus-connected cabinet can be disconnected, the 4# bus-connected cabinet circuit breaker is rocked to a test position, the 4# isolation cabinet is rocked to a disconnection position, and overhauling maintenance or hidden trouble investigation is carried out on the 3# bus under the condition that other bus power supply operation is not influenced.
The arrangement of the 4# bus and the 5# bus plays a role in connecting an incoming line power supply, and the arrangement of the first isolation bus, the second isolation bus, the third isolation bus, the fourth isolation bus, the 1# isolation cabinet, the 2# isolation cabinet, the 3# isolation cabinet, the 4# isolation cabinet, the 1# bus-bar cabinet, the 2# bus-bar cabinet, the 3# bus-bar cabinet and the 4# bus-bar cabinet can ensure complete isolation from the incoming line power supply during power failure overhaul of the 1# bus, the 2# bus and the 3# bus; and when the 4# bus, the 5# bus, the first isolation bus, the second isolation bus, the third isolation bus and the fourth isolation bus are overhauled, the adjacent live buses or equipment can be isolated, so that the overhauling safety of each bus is ensured.
According to the current power distribution specification, in order to prevent misoperation, operation limiting interlocking can be correspondingly carried out between each group of isolation cabinets and the bus-tie cabinet, namely, the bus-tie cabinet circuit breaker can operate the isolation cabinets at test positions, and the bus-tie cabinet can be operated after the isolation cabinets are put into use, so that misoperation is avoided.
According to the same principle, a plurality of sectional buses with outlet cabinets can be additionally arranged between the 4# buses and the 5# buses according to the field requirement, and the switching of the power supply is realized through the bus-bar cabinets and the isolation cabinets at the two sides of the sectional buses. Under the condition that a new incoming line power supply is not added, the number of the segmented buses with the outgoing line cabinets is increased, the operation difficulty can be increased due to the fact that the switching loops of the power supply are too many, the reliability of power supply can be affected correspondingly, and the number of the segmented buses with the outgoing line cabinets is preferably not more than 4.
The utility model has the beneficial effects that the equipment which belongs to three different areas or systems is respectively configured on the 1# bus, the 2# bus and the 3# bus, and the 1# bus, the 2# bus and the 3# bus can be subjected to power failure maintenance, hidden danger investigation and the like under the condition that the operation of other bus load equipment is not influenced by corresponding operation.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. The utility model provides a novel 10KV supplies distribution system which characterized in that: comprising the following steps: the system comprises a 1-5 th busbar, first to fourth isolation busbars, a 1-4 th isolation cabinet and a 1-4 th busbar cabinet, wherein two ends of the 1# isolation cabinet are respectively connected with the 1# busbar and the 1# busbar cabinet, and the other end of the 1# busbar cabinet is connected with the 4# busbar; two ends of the 3# bus-bar cabinet are respectively connected with the 4# bus and the 3# isolation cabinet, and the other end of the 3# isolation cabinet is connected with the 3# bus; two ends of the 4# isolation cabinet are respectively connected with a 3# bus and a 4# bus, and the other end of the 4# bus is connected with a 5# bus; two ends of the 2# bus-bar cabinet are respectively connected with the 5# bus and the 2# isolation cabinet, and the other end of the 2# isolation cabinet is connected with the 2# bus.
2. The novel 10KV power supply and distribution system of claim 1, further comprising: no. 1-2 inlet wire cabinet, 1# inlet wire cabinet is connected with 4# generating line, and 2# inlet wire cabinet is connected with 5# generating line.
3. The novel 10KV power supply and distribution system of claim 1, further comprising: and the 1 st to the 3 rd outlet cabinet groups, wherein each outlet cabinet group comprises a plurality of outlet cabinets.
4. The novel 10KV power supply and distribution system of claim 1, further comprising: first to fourth isolation bus bars, 1# isolation cabinet and 1# bus bar are connected through first isolation bus bar, 2# isolation cabinet and 2# bus bar are connected through the second isolation bus bar, 3# isolation cabinet and 3# bus bar are connected through the third isolation bus bar, 4# isolation cabinet and 4# bus bar are connected through the fourth isolation bus bar.
5. The novel 10KV power supply and distribution system according to claim 2, wherein the model of the incoming line cabinet, the isolation cabinet and the bus-bar cabinet is KYN28-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320955231.2U CN219918422U (en) | 2023-04-25 | 2023-04-25 | Novel 10KV power supply and distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320955231.2U CN219918422U (en) | 2023-04-25 | 2023-04-25 | Novel 10KV power supply and distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219918422U true CN219918422U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320955231.2U Active CN219918422U (en) | 2023-04-25 | 2023-04-25 | Novel 10KV power supply and distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219918422U (en) |
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2023
- 2023-04-25 CN CN202320955231.2U patent/CN219918422U/en active Active
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