CN219203918U

CN219203918U - Vehicle-mounted movable transformer substation

Info

Publication number: CN219203918U
Application number: CN202223279670.0U
Authority: CN
Inventors: 何树斌; 张万臣; 杨希江
Original assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Current assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-16
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a vehicle-mounted movable transformer substation, which is borne by two semitrailer-mounted systems, namely a high-voltage transformer substation module and a medium-voltage distribution substation module, wherein the two substation modules are connected and combined through cables to realize the function of the transformer substation. The utility model has flexible movement, convenient use, simple operation, flexible site selection, convenient transportation and lower cost, and effectively solves the power supply problems under the conditions of power equipment maintenance, transformer substation transformation, load transfer, temporary power utilization in new construction, and the like.

Description

Vehicle-mounted movable transformer substation

Technical Field

The utility model belongs to the technical field of transformer substation equipment, and particularly relates to a vehicle-mounted mobile transformer substation.

Background

Along with the requirements of social economic development, the requirements of society on power supply quality and uninterrupted power supply are increasingly strong, the requirements on a power supply system are more strict, traditional power solutions are continuously perfected and supplemented, limited and reasonable transformation and even reconstruction are carried out on the existing transformer substation, and the method is an effective way for improving the power supply and distribution capability of the transformer substation. The vehicle-mounted movable transformer substation is used as a supplement of the fixed transformer substation, has the characteristics of flexibility, low cost and the like, and effectively solves the power supply problem under the conditions of power equipment overhaul or transformer substation transformation, load transfer, temporary power utilization in new construction, emergency power utilization and the like.

Disclosure of Invention

Aiming at the defects and social requirements existing in the prior art, the utility model provides a vehicle-mounted mobile substation, which is borne by two semitrailer systems, namely a high-voltage transformer vehicle module and a medium-voltage distribution vehicle module, wherein the two vehicle modules are connected and combined through cables to realize the function of the substation. The transformer substation is flexible in maneuvering, convenient to use, simple to operate, flexible in site selection, convenient to transport and low in cost.

The technical scheme adopted by the utility model is as follows: the vehicle-mounted movable transformer substation comprises a high-voltage transformer substation module and a medium-voltage distribution substation module, wherein the high-voltage transformer substation module is respectively borne by two semitrailer systems and comprises a high-voltage prefabricated cabin, a high-voltage vehicle-mounted system, a 40.5kV switch cabinet, a transformer, a high-voltage cable, a secondary terminal box, a secondary cable cabinet and an electric reel, the 40.5kV switch cabinet is installed in the high-voltage prefabricated cabin, and an electric exhaust fan is arranged on the high-voltage prefabricated cabin; the electric reel, the secondary terminal box, the secondary cable cabinet, the transformer and the high-voltage prefabricated cabin are arranged on a semitrailer of the high-voltage vehicle-mounted system, and a high-voltage cable is connected between the 40.5kV switch cabinet and the transformer; the secondary terminal box, the secondary cable cabinet and the cables in the transformer are connected to the electric reel;

the medium-voltage distribution vehicle module comprises a medium-voltage prefabricated cabin, a medium-voltage vehicle-mounted system, a 12kV switch cabinet, a bus-bar cabinet, a safety tool cabinet, a line protection screen, a station transformer and a fire extinguisher box, wherein the medium-voltage prefabricated cabin is arranged on the medium-voltage vehicle-mounted system, and the 12kV switch cabinet, the bus-bar cabinet, the safety tool cabinet, the line protection screen, the station transformer and the fire extinguisher box are arranged in the medium-voltage prefabricated cabin; the bottom of the medium-voltage prefabricated cabin is provided with a plurality of cable inlets.

Further, the high-voltage vehicle-mounted system comprises a semi-trailer, a high-voltage module stepping ladder, a vehicle body fence and a split heads type mechanical supporting leg, wherein the split heads type mechanical supporting leg is arranged below the semi-trailer, the high-voltage module stepping ladder is arranged beside the high-voltage prefabricated cabin and the transformer respectively, and the vehicle body fence is arranged around the transformer.

Further, an industrial air conditioner and a projection lighting lamp are installed on the medium-voltage prefabricated cabin, a control power supply box and a protection interface box are installed at the bottom of the medium-voltage prefabricated cabin, and a medium-voltage module stepping ladder is installed on the medium-voltage vehicle-mounted system.

Further, in the prefabricated cabin of middling pressure, 12kV cubical switchboard and station are with transformer, female antithetical couplet cabinet, safety tool cabinet and fire extinguisher case place in same compartment, and the circuit protection screen is an independent compartment, and the baffle that adopts between two compartments, and the outside is the metal level, and the inboard is polyurethane.

Further, the circuit protection screen comprises a direct current screen, an alternating current screen, a protection screen, a communication screen and a circuit screen.

The 40.5kV high-voltage prefabricated cabin and the transformer are arranged on the same semitrailer system to form a high-voltage transformer vehicle module. The high-voltage lines between the electric main equipment are flexibly connected, so that the damage to the high-voltage lines of the vehicle-mounted electric equipment in the transportation process of the main transformer is avoided. The high-voltage prefabricated cabin is internally provided with the 40.5kV armored fixed indoor alternating current metal closed switch cabinet and the welded cabinet body, so that all electric elements in the cabinet are well supported, electric main equipment can run in a place with complex road conditions, the environmental adaptability of the vehicle-mounted switch cabinet is enhanced, and a high-voltage transformer car can adapt to a harsher environment.

The medium-voltage distribution trolley module is mainly formed by placing a medium-voltage prefabricated cabin on another semi-trailer system, and a 12kV vehicle-mounted switch cabinet, a station transformer and the like are arranged in the medium-voltage prefabricated cabin. The 12kV vehicle-mounted switch cabinet and the station transformer are placed in the same compartment, the low-voltage cabinet is an independent compartment, a partition plate is adopted between the two compartments, the outer side is a metal layer, and the inner side is polyurethane. The vehicle-mounted switch cabinet adopts the 12kV indoor alternating-current high-voltage ring main unit, has small volume and small occupied area, can be provided with a plurality of outgoing line cabinets, and can be maintained from the front of the cabinet, so that 10.5kV outgoing line ports can be increased in the limited vehicle plate length. The low-voltage cabinet compartment comprises a direct current screen, an alternating current screen, a protection screen, a communication screen and a circuit screen. A cable interlayer is arranged between the lower part of the medium-pressure prefabricated cabin and the trailer, so that the cable connection is facilitated.

The utility model has the main advantages that: has the advantages of good flexibility, convenient use, simple operation, flexible site selection, convenient transportation and low investment cost. The high-voltage transformer car module and the medium-voltage distribution car module can be quickly arranged on the installation site of the vehicle-mounted mobile substation, and the functions of the substation are realized through cable connection and combination.

Drawings

Fig. 1 is a schematic diagram of the overall appearance of the high-voltage transformer vehicle of the utility model;

FIG. 2 is a schematic overall outline view of the medium voltage electric vehicle of the present utility model;

fig. 3 is a schematic side view of the high voltage transformation module of the present utility model;

FIG. 4 is a schematic top view of the high voltage power conversion module of the present utility model;

fig. 5 is a schematic side view of a medium voltage power distribution module of the present utility model;

fig. 6 is a schematic top view of the medium voltage power distribution module of the present utility model;

FIG. 7 is a schematic diagram of the connection of the present utility model when operating in parallel;

fig. 8 is a schematic view of the connection of the present utility model in a straight line placement operation.

The marks in the figure are as follows:

1-electric reels, 2-secondary terminal boxes, 3-car body fences, 4-transformers, 5-high voltage cables, 6-high voltage prefabricated cabins, 7-high voltage car-mounted systems, 8-split heads type mechanical legs, 9-high voltage module step ladder, 10-electric exhaust fans, 11-40.5kV switch cabinets, 12-secondary cable cabinets, 13-cable access ports, 14-industrial air conditioners, 15-medium voltage prefabricated cabins, 16-projection lighting lamps, 17-control power supply boxes and protection interface boxes, 18-medium voltage car-mounted systems, 19-medium voltage module step ladder, 20-line protection screens, 21-station transformers, 22-12kV switch cabinets, 23-bus-tie cabinets, 24-safety tool cabinets, 25-fire extinguisher cabinets, 26-low voltage cabinets, 27-field fences, 131-high voltage cables II, 132-protection cables and 133-power supply cables.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the vehicle-mounted movable substation is borne by two semitrailer systems, namely a high-voltage transformer substation module and a medium-voltage distribution substation module, and the two substation modules are connected and combined through a high-voltage cable to realize the function of the substation. The system specifically comprises an electric reel 1, a secondary terminal box 2, a car body fence 3, a transformer 4, a high-voltage cable 5, a high-voltage prefabricated cabin 6, a high-voltage vehicle-mounted system 7, a split-head type mechanical support leg 8/mechanical hydraulic support leg, a high-voltage module stepping ladder 9, an electric exhaust fan 10, a 40.5kV switch cabinet 11, a secondary cable cabinet 12, a cable 13, an industrial air conditioner 14, a medium-voltage prefabricated cabin 15, a projection lighting lamp 16, a control power supply box and protection interface box 17, a medium-voltage vehicle-mounted system 18, a medium-voltage module stepping ladder 19, a line protection screen 20, a station transformer 21, a 12kV switch cabinet 22, a bus-tie cabinet 23, a safety tool cabinet 24 and a fire extinguisher box 25;

firstly, a 40.5kV switch cabinet 11 is installed in a high-voltage prefabricated cabin 6, then a transformer 4, an electric reel 1 and the high-voltage prefabricated cabin 6 are installed on a semitrailer of a high-voltage vehicle-mounted system 7, then cables are stored in the electric reel 1, and a secondary cable cabinet 12, a high-voltage module step ladder 9, a vehicle body fence 3, a secondary terminal box 2, a high-voltage cable 5, a split-stool type mechanical supporting leg 8 and an electric exhaust fan 10 are installed. The 12kV switch cabinet 22, the bus-tie cabinet 23, the safety tool cabinet 24, the line protection screen 20, the station transformer 21 and the fire extinguisher cabinet 25 are installed in the medium-voltage prefabricated cabin 15, and then the medium-voltage prefabricated cabin 15, the industrial air conditioner 14, the medium-voltage module step ladder 19, the projection lighting lamp 16, the control power supply box and the protection interface box 17 are installed on the medium-voltage vehicle-mounted system 18 to finish the installation.

The 40.5kV switch cabinet 11 is embedded and installed in the high-voltage prefabricated cabin 6, the 12kV switch cabinet 22, the station transformer 21, the bus-tie cabinet 23, the safety tool cabinet 24 and the fire extinguisher cabinet 25 are embedded and installed in the medium-voltage prefabricated cabin 15, and the high-voltage prefabricated cabin is reduced in integrated design, so that the whole vehicle height is reduced.

Wherein, an electric reel 1 is arranged behind the high-voltage transformer car module so as to rapidly collect and store the cable;

in the medium-voltage prefabricated cabin 15, a 12kV switch cabinet 22, a station transformer 21, a bus-bar cabinet 23, a safety tool cabinet 24 and a fire extinguisher cabinet 25 are placed in the same compartment, a low-voltage cabinet compartment 26 is an independent compartment, a partition plate is adopted between the two compartments, the outer side is a metal layer, and the inner side is polyurethane;

in operation, as shown in fig. 7-8, the high-voltage transformer car module and the medium-voltage distribution car module can be placed in a straight line or in parallel according to the field situation. The cable includes high tension cable II 131, power cable 133 and protection cable 132, rolls up on electric reel 1, emits when using and corresponds the connection according to actual conditions, adopts above-mentioned structure, and at on-vehicle portable substation installation scene, can settle high tension substation car module and middling pressure distribution car module fast, realizes the function of transformer substation through cable connection, combination.

The specific embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The vehicle-mounted movable transformer substation is characterized by comprising a high-voltage transformer substation module and a medium-voltage distribution substation module, wherein the high-voltage transformer substation module is respectively borne by two semitrailer systems, the high-voltage transformer substation module comprises a high-voltage prefabricated cabin (6), a high-voltage vehicle-mounted system (7), a 40.5kV switch cabinet (11), a transformer (4), a high-voltage cable (5), a secondary terminal box (2), a secondary cable cabinet (12) and an electric reel (1), the 40.5kV switch cabinet (11) is installed in the high-voltage prefabricated cabin (6), and an electric exhaust fan (10) is arranged on the high-voltage prefabricated cabin (6); the electric reel (1), the secondary terminal box (2), the secondary cable cabinet (12), the transformer (4) and the high-voltage prefabricated cabin (6) are arranged on a semitrailer of the high-voltage vehicle-mounted system (7), and a high-voltage cable (5) is connected between the 40.5kV switch cabinet (11) and the transformer (4); the secondary terminal box (2), the secondary cable cabinet (12) and the cables in the transformer (4) are connected to the electric reel (1);

the medium-voltage distribution vehicle module comprises a medium-voltage prefabricated cabin (15), a medium-voltage vehicle-mounted system (18), a 12kV switch cabinet (22), a bus-tie cabinet (23), a safety tool cabinet (24), a line protection screen (20), a station transformer (21) and a fire extinguisher box (25), wherein the medium-voltage prefabricated cabin (15) is installed on the medium-voltage vehicle-mounted system (18), and the 12kV switch cabinet (22), the bus-tie cabinet (23), the safety tool cabinet (24), the line protection screen (20), the station transformer (21) and the fire extinguisher box (25) are installed in the medium-voltage prefabricated cabin (15); the bottom of the medium-voltage prefabricated cabin (15) is provided with a plurality of cable inlets (13).

2. The vehicle-mounted mobile substation according to claim 1, wherein the high-voltage vehicle-mounted system (7) comprises a semitrailer, a high-voltage module stepping ladder (9), a vehicle body fence (3) and split heads-type mechanical support legs (8), wherein the split heads-type mechanical support legs (8) are arranged under the semitrailer, the high-voltage module stepping ladder (9) is respectively arranged beside the high-voltage prefabricated cabin (6) and the transformer (4), and the vehicle body fence (3) is arranged around the transformer (4).

3. The vehicle-mounted mobile substation according to claim 1, wherein the medium voltage prefabricated cabin (15) is provided with an industrial air conditioner (14) and a projection lighting lamp (16), the bottom of the medium voltage prefabricated cabin (15) is provided with a control power supply box and a protection interface box (17), and the medium voltage vehicle-mounted system (18) is provided with a medium voltage module step ladder (19).

4. The vehicle-mounted mobile substation according to claim 1, wherein in the medium voltage prefabricated cabin (15), the 12kV switch cabinet (22) and the station transformer (21), the bus-bar cabinet (23), the safety tool cabinet (24) and the fire extinguisher cabinet (25) are placed in the same compartment, the line protection screen (20) is an independent compartment, a partition plate is adopted between the two compartments, the outer side is a metal layer, and the inner side is polyurethane.

5. The vehicle mobile substation of claim 1, wherein the line protection screen (20) comprises a dc screen, an ac screen, a protection screen, a communication screen, and a line screen.