CN102403780A - Power supply device for bypass to operate without power failure - Google Patents

Abstract

The invention discloses a power supply equipment for bypass operation without power failure, which includes a mobile box transformer emergency repair vehicle and a high-voltage power-taking part. The high-voltage power-taking part includes a bypass terminal joint, a bypass intermediate joint and a high-voltage power line. It is connected with the high-voltage line; the high-voltage power-taking part is connected with the mobile box-type emergency repair vehicle through a quick plug-in plug; the mobile box-type emergency repair vehicle is connected with the power transmission end of the bypass non-stop operation power supply system through a low voltage. This invention can temporarily assemble a power transmission line at the construction site, across the maintenance and fault line section, operate the load switch, run the original line and the bypass line in parallel, and then disconnect the power supply of the original line. Enter the maintenance work in the state of power failure. Its outstanding feature is that the power supply line will not affect the continuous power supply to users during power outage maintenance. It is the development direction and effective means to reduce the planned power outage time and improve the reliability of power supply.

Description

Bypass power supply equipment for non-stop operation

Technical field:

The invention relates to a power supply device, in particular to a power supply device for bypass non-stop operation.

Background technique:

With the rapid development of urban construction and the intensification of new construction and renovation of distribution networks, people have higher and higher requirements for less power outages or even no power outages during planned maintenance and emergency repairs. There are few breaking switches for overhead lines in the distribution network in Zhengzhou, and it usually takes a long time to find the fault point and repair it when the overhead line is overhauled or repaired. Key power consumption units or major events require high power supply reliability.

In order to adapt to new forms of development, power supply companies must keep pace with the times and continuously improve their technical level and service quality, promote technological progress and equipment upgrades, quickly complete planned maintenance and emergency repairs, and effectively solve the contradiction between equipment power outage maintenance and uninterrupted power supply to users , improve the quality of safe power supply services, meet the diversified needs of users, and lay a solid foundation for the sustainable development of the power grid.

Invention content:

The technical problem to be solved by the present invention is to provide a power supply equipment for bypass without power failure, which can temporarily provide high-voltage power supply for bypass transmission lines at the construction site, and enter into the maintenance work under the condition of power failure without power failure for customers.

The technical scheme that the present invention takes for solving technical problems is:

A bypass non-stop operation power supply equipment, said bypass non-stop operation power supply equipment includes a mobile box-type substation emergency repair vehicle and a high-voltage power-taking part, and the high-voltage power-taking part includes a bypass terminal connector, a bypass intermediate connector and a high-voltage power line , The high-voltage power line is directly connected to the high-voltage line.

The high-voltage power-taking part is connected to the mobile box-type substation emergency repair vehicle through a quick plug-in plug; the mobile box-type substation emergency repair vehicle is connected to the power transmission end of the bypass non-stop operation power supply system through a low voltage.

The bypass non-stop operation power supply system includes a bypass load switch A, a bypass load switch B and a bypass power supply cable system. The bypass load switch A and the bypass load switch B are respectively arranged on both sides of the fault repair point, and the The overhead insulated wires are connected; the bypass power supply cable system includes quick plug-in terminals, quick plug-in connectors and connector users, and the middle is respectively connected by bypass power supply flexible power cables.

The quick-plug connector includes a quick-plug T-type connector and a quick-plug intermediate connector, which are respectively connected to users through power cables.

The positive beneficial effect of the present invention is:

1. The present invention includes a mobile box substation emergency repair vehicle and a high-voltage power-taking part. The high-voltage power-taking part includes a bypass terminal joint, a bypass intermediate joint and a high-voltage power supply line. The high-voltage power supply line is directly connected to the high-voltage line; the high-voltage power supply part and The mobile box substation emergency repair vehicle is connected through a quick plug-in plug, and the mobile box substation emergency repair vehicle is connected to the power transmission end of the bypass non-stop operation power supply system through a low voltage, which is convenient and practical.

2. The power supply system for bypass non-stop operation of the present invention is composed of bypass load switch A, bypass load switch B, bypass power supply flexible power cable, quick plug-in power cable, etc. This technology can use these devices to temporarily Assemble a transmission line, across the maintenance and fault line section, operate the load switch, run the original line and the bypass line in parallel, and then disconnect the power supply of the original line, and enter the maintenance work in the power failure state under the condition of ensuring that the customer does not stop the power supply . The outstanding feature of the present invention is that the power supply line will not affect the continuous power supply to users during power outage maintenance. It is the development direction and effective means to reduce the planned power outage time and improve the reliability of power supply. It is also the most advanced power distribution live work project at home and abroad. One, worth promoting.

3. The present invention can greatly improve the emergency response capacity of urban power supply companies to flexibly deal with natural disasters and sudden accidents of the power grid, and greatly improve the technical level and technical equipment level of the non-stop operation method, with emergency response, flexibility, and applicable It has the advantages of wide range, high safety and reliability, so as to further enhance and improve the active, countermeasure and coordinated control security defense system of the urban power distribution system, and effectively ensure the safe, stable and reliable operation of the urban power grid.

4. The present invention has a quick connection function, which is highly expandable, and the following electrical operations can be completed by applying this function: ① bypass non-stop operation maintenance and replacement of overhead cable line equipment (fuse, pole switch, wire, etc.); ②Quickly replace line equipment such as ring network cabinets and branch boxes; ③Construct temporary transmission lines to provide temporary power; ④Transform mobile box transformers to complete high-voltage to low-voltage load transfer.

Description of drawings:

Fig. 1 is the structural principle schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the structure and principle of the bypass non-stop operation power supply system in the present invention.

Detailed ways:

Below in conjunction with accompanying drawing, the present invention will be further described:

See Figure 1, the names of the parts represented by the serial numbers in the figure are: 1-high-voltage line, 2-high-voltage power line, 3-bypass intermediate connector, 4-bypass terminal connector, 5-low-voltage line, 6-power transmission terminal, 7-Mobile box substation emergency repair vehicle, 8-Bypass power supply flexible power cable, 9-Quick plug-in intermediate connector, 10-Quick plug-in T-type connector.

A power supply device for bypass operation without power failure, comprising a mobile box-type substation emergency repair vehicle 7 and a high-voltage power-taking part, the high-voltage power-taking part includes a bypass terminal connector 4, a bypass intermediate connector 3, a high-voltage power supply line 2, and a high-voltage power supply line 2 Connect with high voltage line 1. The high-voltage power-taking part is connected with the mobile box-change emergency repair vehicle 7 through a quick plug-in plug; the mobile box-transform emergency repair vehicle 7 is connected with the power transmission terminal 6 of the bypass non-stop operation power supply system through the low-voltage line 5; The operation power supply system includes bypass load switch A, bypass load switch B and bypass power supply cable system. The bypass load switch A and bypass load switch B are respectively arranged on both sides of the fault repair point 7, and the middle is connected by an overhead insulated wire ; The bypass power supply cable system includes a quick-plug terminal, a quick-plug connector and a connector user, and the middle is respectively connected by a bypass power supply flexible power cable 8; the quick-plug connector includes a quick-plug T The type joint 10 and the quick-plug type intermediate joint 9 are respectively connected to the user through a power cable.

This invention can temporarily assemble a power transmission line at the construction site, across the maintenance and fault line section, operate the load switch, run the original line and the bypass line in parallel, and then disconnect the power supply of the original line. Enter the maintenance work in the state of power failure. Its outstanding feature is that the power supply line will not affect the continuous power supply to users during power outage maintenance. It is the development direction and effective means to reduce the planned power outage time and improve the reliability of power supply.

Claims (4)

1. bypass uninterrupted operation power supply unit; It is characterized in that: said bypass uninterrupted operation power supply unit comprises that movable case becomes breakdown van (7) and high pressure power taking part; This high pressure power taking partly comprises bypass terminal fitting (4), bypass transition joint (3) and high-voltage power-line (2), high-voltage power-line (2) and high-tension line (1) UNICOM.

2. bypass uninterrupted operation power supply unit according to claim 1 is characterized in that: said high pressure power taking part becomes breakdown van (7) with movable case and is connected through the quick plug-in plug; Said movable case becomes breakdown van (7) and is connected with the sending end (6) of bypass uninterrupted operation electric power system through low-voltage circuit (5).

3. bypass uninterrupted operation power supply unit according to claim 2; It is characterized in that: said bypass uninterrupted operation electric power system comprises bypass on-load switch A, bypass on-load switch B and bypass power supply cable system; Bypass on-load switch A and bypass on-load switch B are separately positioned on the both sides of breakdown repair point (7), and the centre is connected through aerial insulated wire; Said bypass power supply cable system comprises quick plug-in terminal, quick plug-in joint and joint user, and the centre is connected through bypass power supply flexible power cable (8) respectively.

4. bypass uninterrupted operation power supply unit according to claim 3 is characterized in that: said quick plug-in joint comprises quick plug-in T connector (10) and quick plug-in transition joint (9), is connected with the user through power cable respectively.

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