CN204481356U - A kind of fast moving distribution integrated apparatus - Google Patents

Abstract

The utility model discloses a kind of fast moving distribution integrated apparatus, it is characterized in that: comprise car body and be arranged on the runner of vehicle bottom, bearing, bracket and parking brake, the space in car body is divided into transformer room, low voltage control room and high voltage control room by dividing plate; High voltage control indoor are provided with high voltage power distribution unit, high voltage power distribution unit comprises isolating switch and circuit breaker, high voltage indicator, high pressure gauge meter, transformer room is provided with transformer, low voltage control indoor are provided with low-voltage distribution unit by bolt, and low-voltage distribution unit comprises interconnective low-voltage circuit breaker, switch with knifeshaped fuse, current transformer, change over switch, secondary capacitor, low voltage surge arrester, ammeter, voltmeter, connection copper coin wire, insulating case and insulation column.The utility model has the features such as power supply is reliable, rational in infrastructure, installation rapid flexible, easy to operate, volume is little, elegant in appearance, performance is remarkable.

Description

A fast mobile power distribution integrated device

technical field

The utility model relates to the technical field of electric power emergency repair, in particular to a rapidly moving integrated power distribution device.

Background technique

In the operation of 10kV power distribution equipment in urban and rural areas, some enterprises have installed high-frequency equipment privately to change the voltage waveform of the line and reduce the power quality. Due to lightning strikes, weather conditions and load growth, transformers and switchgears often malfunction or even If it burns out, it will be difficult to restore normal power supply in a short time, which will have a great impact on the lives of ordinary residents. The rush repair work time is often more than a few hours, or even a day or two. At the same time, when the fault occurs in disaster weather and at night, due to the difficulty and high risk of emergency repairs in disaster weather and night, working for a long time will easily lead to fatigue of the staff and increase the work risk. Some qualified enterprises, those far away from the power supply radius, and large-scale events held in counties and townships urgently need temporary power supply, but the existing emergency diesel generator vehicles only have four hours of power supply time, and they must be dragged out to refuel if the power is cut off. Two or three days have to be refueled many times, and the voltage is unstable. It is very troublesome to reconnect the power supply. It is difficult to meet the temporary emergency needs and seriously affect people's lives.

Utility model content

The technical problem to be solved by this utility model is to provide a fast-moving power distribution integrated device for the above-mentioned deficiencies in the prior art. The utility model finally selects 10kV six Sulfur fluoride fully enclosed mixed gas compact circuit breaker and knife switch, and S11-M/10/0.4 oil-immersed transformer, the circuit breaker and transformer have the functions of saving space, shockproof and suppressing transformer oil bubbles. On the basis of operating experience, digest and learn from foreign advanced technology and design concepts, and design and manufacture new products specially for my country's urban distribution network. It has the characteristics of reliable power supply, reasonable structure, quick and flexible installation, convenient operation, small size, elegant appearance, and excellent performance.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a fast-moving power distribution integrated device, which is characterized in that it includes a car body, a runner, a support, a trailer and a hand brake arranged at the bottom of the car body, The space in the car body is divided into a transformer room, a low-voltage control room and a high-voltage control room through partitions; a high-voltage power distribution unit is arranged in the high-voltage control room, and the high-voltage power distribution unit includes an upper isolation switch, a circuit breaker, and a high-voltage indicator. The transformer room is equipped with a transformer, the low-voltage control room is equipped with a low-voltage power distribution unit through bolts, and the low-voltage power distribution unit includes a low-voltage circuit breaker, a knife fuse switch, a current transformer, Change-over switch, low-voltage capacitor, low-voltage arrester, ammeter, voltmeter, connecting copper plate wire, insulating sleeve and insulating support.

Further, the runners are four or eight wheels.

Further, the supports are hydraulic supports or screw supports, and there are four of them.

Further, the trailer is a trailer that can be erected, put down and rotated by 120°.

Further, the vehicle body is provided with two grounding points, one is the case grounding, and the other is the equipment grounding.

Further, the transformer is an S11-M/10/0.4 oil-immersed transformer.

Further, the circuit breaker is a 10kV sulfur hexafluoride fully enclosed mixed gas compact circuit breaker.

Further, the circuit breaker includes an incoming switch, a ring main switch, and a load switch.

Further, the partition is provided with protruding louvers and circular holes.

Compared with the prior art, the utility model has the following advantages:

In summarizing the selection of several switches and transformers for many years, the utility model finally selects 10kV sulfur hexafluoride fully enclosed mixed gas compact circuit breaker and knife switch, and S11-M/10/0.4 oil-immersed transformer. Circuit breakers and transformers have the functions of saving space, shockproof and suppressing transformer oil bubbles. On the basis of operating experience, digest and learn from foreign advanced technology and design concepts, and design and manufacture new products specially for my country's urban distribution network. It has the characteristics of reliable power supply, reasonable structure, quick and flexible installation, convenient operation, small size, elegant appearance, and excellent performance.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Figure 1 is a schematic diagram of the car body structure of the fast moving power distribution integration device of the present invention;

Fig. 2 is a schematic diagram of the high-voltage power distribution unit of the fast moving power distribution integrated device of the present invention;

Fig. 3 is a schematic diagram of the transformer of the fast moving power distribution integrated device of the present invention;

Fig. 4 is a schematic diagram of the low-voltage power distribution unit of the fast moving power distribution integrated device of the present invention;

Fig. 5 is a schematic diagram of the overall connection of the high-voltage power distribution unit, the transformer and the low-voltage power distribution unit of the present invention.

Detailed ways

As shown in Figure 1, a fast-moving power distribution integrated device is characterized in that it includes a car body and a runner, a support, a trailer and a hand brake arranged at the bottom of the car body, and the space in the car body passes through a partition It is divided into a transformer room 1, a low-voltage control room 2 and a high-voltage control room 3; the high-voltage control room 3 is provided with a high-voltage power distribution unit, and the high-voltage power distribution unit includes an upper isolation switch and a circuit breaker, a high-voltage indicator, a high-voltage meter The transformer room 1 is equipped with a transformer, and the low-voltage control room 2 is equipped with a low-voltage power distribution unit through bolts. The low-voltage power distribution unit includes a low-voltage circuit breaker, a knife fuse switch, a current transformer, and a switching Switches, low-voltage capacitors, low-voltage arresters, ammeters, voltmeters, connecting copper plate wires, insulating sleeves and insulating posts.

In this embodiment, the runners are four or eight wheels.

In this embodiment, the supports are hydraulic supports or screw supports, and there are four of them.

In this embodiment, the trailer is a trailer that can be erected, put down and rotated by 120°.

In this embodiment, the vehicle body is provided with two grounding points, one is the case grounding, and the other is the equipment grounding.

In this embodiment, the transformer is an S11-M/10/0.4 oil-immersed transformer.

In this embodiment, the circuit breaker is a 10kV sulfur hexafluoride fully enclosed mixed gas compact circuit breaker.

In this embodiment, the circuit breaker includes an incoming line switch, a ring main switch, and a load switch.

In this embodiment, the partition is provided with protruding louvers and round holes.

As shown in Figure 2-5, the structural design of the high-voltage power distribution unit in the vehicle body of this embodiment breaks the traditional concept that the transformer and the circuit breaker cannot be put together. The circuit breaker and the transformer are separated by a partition, and the partition is equipped with cooling holes. , The circuit breaker adopts over-current tripping protection. The transformer adopts no-load voltage regulation, and uses fuses as backup protection, and uses 10kV incoming cabinet (knife switch without grounding knife) power supply to enter. The ring network outlet cabinet has a ground knife, and cannot be used as an incoming 10kV ring network power supply cabinet, so as not to cause a three-phase ground short circuit. The soft red copper single-core cable is connected to 70㎡. There are two sets of cables, one set of incoming cables, and one set of ring network The network cable, the incoming cable is fixedly connected, and the total length is 8m. The cable elbow on the power supply side is well prepared, and rolled up and placed in the bottom iron box when not in use. The ring network cable depends on the situation. The soft red copper 70㎡ cable access is used together with the 10kV arrester and box transformer. The primary high-voltage live display and fault indicator remind the operator that the equipment is running. All high-voltage connection parts use insulation materials above 10kV. Carry out insulation treatment, and all secondary cables are clamped in the wire groove.

The low-voltage circuit breakers, knife fuse switches, current transformers, transfer switches, low-voltage capacitors, low-voltage arresters, ammeters, voltmeters, connecting copper plate wires, insulating sleeves, and insulating pillars of the low-voltage power distribution unit are all of different types and quantities. Fix it on the device and install it in the low-voltage chamber and on the panel in turn. In the construction process of the fast mobile power distribution integrated device, the main 8 standard specifications and a safety specification test procedure are as follows: 1. GB1094/"Power Transformer", GB17467-2010 "High Voltage and Low Voltage Prefabricated Substation", GB311. 1 "Insulation Coordination of High-Voltage Power Transmission and Transformation Equipment", GB763 "Heat Generation of AC High-Voltage Electrical Appliances for Long-Term Work", GB5273 "Terminals for Transformers, High-Voltage Power and Bushings", GB7328 "Sound Level Measurement of Transformers and Reactors" ", GB/T6401-999 "Technical Participation and Requirements for Three-phase Oil-immersed Power Transformers", GB4208-1993 "Enclosure Protection Level" adopts the preventive test procedures for power equipment when used.

In actual use, in order to ensure safety, a small truck is used to drag the fast power distribution integrated device with a speed limit of 30 km/h. When it arrives at the site, it is placed in a good position, and the four supports are placed in a certain position to fix the trailer. After the grounding is connected, test the grounding resistance. After the resistance is below 5Ω, conduct a comprehensive inspection of the fast power distribution integrated device, and then use an electric test pen to test the cable head on the 10kV power supply side. After confirming that there is no power, make a good connection between the high and low voltage of the field equipment , and prepare the cable head to insert the plug into the docking box, connect to the fast power distribution integrated device, operate the high-voltage part and start the no-load test run, and then close the capacitance compensation switch for each low-voltage line at the same time. After power supply, close all the doors, lock the trailer frame upright, take safety protection measures for the two sets of cables, and surround with fences for warning.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (9)

1. a fast moving distribution integrated apparatus, it is characterized in that: comprise car body and be arranged on the runner of vehicle bottom, bearing, bracket and parking brake, the space in described car body is divided into transformer room (1), low voltage control room (2) and high voltage control room (3) by dividing plate; High voltage power distribution unit is provided with in described high voltage control room (3), described high voltage power distribution unit comprises isolating switch and circuit breaker, high voltage indicator, high pressure gauge meter, described transformer room (1) is provided with transformer, be provided with low-voltage distribution unit by bolt in described low voltage control room (2), described low-voltage distribution unit comprises interconnective low-voltage circuit breaker, switch with knifeshaped fuse, current transformer, change over switch, secondary capacitor, low voltage surge arrester, ammeter, voltmeter, connection copper coin wire, insulating case and insulation column.

2. according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described runner is that four-wheel or eight is taken turns.

3., according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described bearing is hydraulic mount or screw support, and be four.

4. according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described bracket is uprightly pack up put down and rotate the bracket of 120 °.

5., according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described car body establishes two places to have earth point, one is the earthing of casing, and one is equipment ground.

6., according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described transformer is S11-M/10/0.4 oil-filled transformer.

7. according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described circuit breaker is the totally-enclosed mist compact circuit breaker of 10kV sulphur hexafluoride.

8. according to a kind of fast moving distribution integrated apparatus according to claim 7, it is characterized in that: described circuit breaker comprises a service entrance switch, loop networks switch, an on-load switch.

9. according to a kind of fast moving distribution integrated apparatus according to claim 1, it is characterized in that: described dividing plate has and protrudes shutter and circular hole.