CN106532533A - Vehicle-mounted mobile substation - Google Patents

Abstract

The present invention provides a vehicle-mounted mobile substation, including a high-voltage substation car and a medium-voltage distribution car connected to the high-voltage substation car; the high-voltage substation car includes: post insulators sequentially connected from the rear of the car to the front of the car , high-voltage switchgear, transformers and neutral protection devices; control cabinets and cable winches are arranged on the left and right sides of the interior of the medium-voltage power distribution car, and a switch cabinet is arranged in the middle. The vehicle-mounted mobile substation provided by the invention has good integrity, compact structure, simple and convenient layout, safe and reliable operation, good anti-seismic performance, and flexible use. It can be dragged to the site, and the substation connection can be completed in a very short time, which is beneficial to reduce the construction period.

Description

A vehicle-mounted mobile substation

technical field

The invention relates to a substation, in particular to a vehicle-mounted mobile substation.

Background technique

Under normal circumstances, in case of sudden failure during the operation of the distribution line, the power will be cut off for maintenance, and all equipment that operates on electricity will stop running during the power failure, and the losses caused by this are self-evident. In order to reduce losses, reduce power outage time, ensure normal power supply, and respond quickly when emergencies occur, and respond to emergencies in a timely manner, it is necessary to improve existing maintenance and rescue methods to ensure normal power supply and achieve non-stop power supply Therefore, it is necessary to provide a mobile substation with small size, high reliability and strong mobility to solve the power supply of emergency or temporary sudden load, to restore the power supply in time during the emergency repair of the power grid, and to increase the capacity of the substation without interrupting the power supply, etc. question.

Contents of the invention

The invention provides a vehicle-mounted mobile substation, which includes a high-voltage substation car and a medium-voltage distribution car connected to the high-voltage substation car; it can realize safe and reliable operation, flexible use, and can be assembled in a short time. for use.

To achieve the above object, the specific scheme of the present invention is as follows:

A vehicle-mounted mobile substation, including a high-voltage substation car and a medium-voltage distribution car connected to the high-voltage substation car; the high-voltage substation car includes: post insulators connected sequentially from the rear of the car to the front, and high-voltage switchgear , a transformer and a neutral protection device; the medium-voltage power distribution car is provided with a control cabinet and a cable winch, and a switch cabinet is provided in the middle, and the switch cabinet includes: a busbar connector connected sequentially from top to bottom, an isolating switch 1, An air-insulated switch, a second isolating switch, and a cable plug; the bushing on the low-voltage side of the transformer is connected to the cable plug with a cable.

The front of the high-voltage substation car is provided with a high-voltage car interface cabinet, a PASS control cabinet and an outrigger controller cabinet connected in sequence.

The neutral protection device includes: a grounding protection cabinet and a neutral protector; one end of the neutral protector is connected to the grounding protection cabinet through a closing switch; the other end is connected to the neutral bushing of the transformer through a cable.

The bottom of the neutral protector is provided with an arrester and an arrester discharge counter connected with the arrester.

The high-voltage switchgear is an HGIS combined electrical appliance; its output end is connected to the high-voltage side bushing of the transformer, and its input end is connected to the post insulator.

The cable winch is a low-voltage cable winch equipped with a hydraulic or electric automatic take-up and release device.

The control cabinet is provided with: a video monitoring screen, a battery screen, a power supply screen, a communication screen, a telecontrol screen and a monitoring host screen.

The control cabinet and the switch cabinet are provided with a dehumidifying air circulation fan.

The transformer adopts a low-voltage foil winding and a dry-type transformer with a high-voltage layer structure.

The cable plug is made of fully insulated silicon rubber material.

The cable plugging head is inclined downward at 45 degrees and installed in combination with the second isolating switch.

The top of the switchgear is provided with a through-type arcing and pressure relief channel.

The container body of the medium-voltage power distribution vehicle is provided with a sealed and isolated cable support plate and a cable fixing sheath.

Compared with the closest prior art, the present invention has the following excellent effects:

The invention provides a vehicle-mounted mobile substation with the functions of carrying large current, no eddy current, full insulation, no arc discharge, suitable for multiple plugging and unplugging operations, and maintenance-free; it has the functions of large installation angle, good integrity, compact structure, simple and convenient layout, and safe operation Reliable, with good anti-seismic performance, flexible use, in the field, in the mountains or on the roadside, etc., as long as there is a suitable place for power supply, it can be dragged to the site, and the connection of the substation can be completed in a very short time Formation is conducive to reducing the construction period, so the vehicle-mounted mobile substation has very good flexibility.

Description of drawings

Figure 1 is a front view of a vehicle-mounted mobile substation;

Figure 2 is a top view of the vehicle-mounted mobile substation;

Figure 3 is the rear view of the medium voltage distribution car;

Fig. 4 is a front view of a medium voltage distribution car.

Among them: 1-post insulator; 2-high voltage switchgear; 3-transformer; 4-neutral protection device; 5-control cabinet; 6-switch cabinet; 7-cable winch; 8-neutral protector; 9-grounding protection Cabinet; 10-busbar connector; 11-isolating switch 1; 12-air insulated switch; 13-isolating switch 2; 14-cable plug; 15-vacuum circuit breaker; -High-voltage substation car; 102-Medium-voltage power distribution car; 103-Container; 104 Container body; 105 Cable connection cover; 106-Sealing and isolation cable support plate; ; 303-Transformer low-voltage side bushing; 401-High-voltage vehicle interface cabinet; 402-PASS control cabinet; 403-Outrigger controller cabinet.

detailed description

The technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:

As shown in Figure 1, the high-voltage substation car 101 is connected in sequence from the rear of the car to the front of the post insulator 1, high-voltage switchgear 2, transformer 3 and neutral protection device 4; the input end of the post insulator 1 is connected to high-voltage three-phase power, through The cable transmits the high-voltage three-phase power to the high-voltage switchgear 2; the output end of the high-voltage switchgear 2 is connected to the high-voltage side bushing 301 of the transformer 3; Incoming cubicle on switchgear 6.

As shown in FIG. 2 , the front of the high-voltage substation car 101 is provided with a high-voltage car interface cabinet 401 , a PASS control cabinet 402 and a leg controller cabinet 403 connected in sequence. The neutral protection device 4 on the high-voltage substation car 101 includes: a grounding protection cabinet 9 and a neutral protector 8; one end of the neutral protector 8 is connected to the grounding protection cabinet 9 through a closing switch; the other end is connected to the transformer through a cable 3 of the neutral sleeve 302 connected. A control cabinet 5 and a cable winch 7 are provided on the left and right sides of the medium-voltage power distribution vehicle 102 , and a switch cabinet 6 is provided in the middle. As shown in Figure 3 and Figure 4: the switchgear 6 includes: a busbar connector 10, a disconnector 11, an air insulated switch 12, a disconnector 2 13 and a cable plug 14 sequentially connected from top to bottom;

The cable plugging head 14 is inclined downward at 450 angles to install the rear of the switch cabinet 6, and the air-insulated switch 12 and the plug-in cable connection cover 105 are set. The cable enters the interior of the container 9 and the switch cabinet 6 through the cable plug 14 from the outside of the container to realize cable connection, and a sealed compartment is used in the middle to seal the cable plug 14 terminal equipment in the container 9 . The direction of cable entry and exit is from the back of the cabinet, and the top of the cabinet is designed with a through-type arcing and pressure relief channel 16.

It should be declared that the contents and specific implementation methods of the present invention are intended to prove the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the protection scope of the present invention. Those skilled in the art may make various modifications, equivalent replacements, or improvements under the inspiration of the spirit and principles of the present invention. But these changes or modifications are all within the protection scope of the pending application.

Claims (13)

1. a kind of vehicle-mounted removable transformer station, including high voltage variable electric car (101) and with the high-voltage transforming The medium-voltage distribution car (102) that car (101) connects；It is characterized in that：Described high voltage variable electric car (101) wrap Include：The support insulator (1) that is sequentially connected by the tailstock to headstock, high-tension switch gear (2), transformator (3) With neutral protection device (4)；Medium pressure distribution trolley (102) is provided with switch board (5) and cable hoist (7), Middle part is provided with switch cubicle (6), and switch cubicle (6) include：The bus tie being from top to bottom sequentially connected (10), disconnecting switch one (11), air insulation switch (12), disconnecting switch two (13) and cable plug Head (14)；The low-pressure side sleeve pipe (303) of transformator (3) and cable plug head (14) electricity consumption Cable connects.

2. transformer station according to claim 1, it is characterised in that：High voltage variable electric car (101) Headstock at be provided with the height being sequentially connected delay unloading interface cabinet (401), PASS convergence control cabinets (402) and supporting leg control Device cabinet (403).

3. transformer station according to claim 1, it is characterised in that：Neutral protection device (4) Including：Ground protection cabinet (9) and neutral protector (8)；The one end of neutral protector (8) passes through Closing switch is connected with ground protection cabinet (9)；The other end passes through the neutrality of cable and the transformator (3) Sleeve pipe (302) is connected.

4. transformer station according to claim 3, it is characterised in that：Neutral protector (8) The arrester discharge counter that bottom is provided with spark gap and is connected with the spark gap.

5. transformer station according to claim 1, it is characterised in that：High-tension switch gear (2) For HGIS combined electrical apparatuses；Its outfan is connected with the high-pressure side sleeve pipe (301) of the transformator (3), defeated Enter end to be connected with the support insulator (1).

6. transformer station according to claim 1, it is characterised in that：Described cable hoist (7) are to set It is equipped with the low-voltage cable capstan winch of hydraulic pressure or electronic automatic retractable line apparatus.

7. transformer station according to claim 1, it is characterised in that：Switch board (5) are provided with： Video monitoring screen, battery panel, power supply panel, communication screen, telemechanical screen and monitoring host computer screen.

8. transformer station according to claim 1, it is characterised in that：It is switch board (5) and described Switch cubicle (6) is provided with dehumidified air circulating fan.

9. transformer station according to claim 1, it is characterised in that：Described transformator (3) are using low Pressure Foil winding, the dry-type transformer of high voltage layer type structure.

10. transformer station according to claim 1, it is characterised in that：Cable plug head (14) Using all insulation silastic material.

11. transformer stations according to claim 1, it is characterised in that：Cable plug head (14) Downward-sloping 45 degree are combined installation with the disconnecting switch two (13).

12. transformer stations according to claim 1, it is characterised in that：The top of switch cubicle (6) It is provided with penetration type arcing and rushes down pressure passageway (16).

13. transformer stations according to claim 1, it is characterised in that：Medium pressure distribution trolley (102) Container body (104) be provided with seal isolation cable support plate (106) and cable fixed sheath (105).