CN104377582A - Box-type substation - Google Patents

Box-type substation Download PDF

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Publication number
CN104377582A
CN104377582A CN201410681020.XA CN201410681020A CN104377582A CN 104377582 A CN104377582 A CN 104377582A CN 201410681020 A CN201410681020 A CN 201410681020A CN 104377582 A CN104377582 A CN 104377582A
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China
Prior art keywords
low
cabinet
box
transformer
bus
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Granted
Application number
CN201410681020.XA
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CN104377582B (en
Inventor
李春东
关士深
郭中杰
陈凯
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LIAONING ELECTRIC PROVER DEVELOPMENT Co Ltd
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LIAONING ELECTRIC PROVER DEVELOPMENT Co Ltd
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Priority to CN201410681020.XA priority Critical patent/CN104377582B/en
Publication of CN104377582A publication Critical patent/CN104377582A/en
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Abstract

The invention belongs to the technical field of distribution automation, and particularly relates to a box-type substation. The box-type substation is convenient to overhaul when power is cut off. The box-type substation comprises a base. A box body is arranged on the base. The upper end of the box body is provided with a top cover. The box-type substation is structurally characterized in that a high-voltage chamber, a transformer chamber and a low-voltage chamber are sequentially arranged in the box body from one side to the other side in the length direction of the box body, a metering chamber is arranged on the side wall of the low-voltage box body, the upper end of the top cover is provided with a solar panel, the outer wall of the rear end of the box body is provided with a solar controller, the lower portion of a front end door of the transformer chamber is provided with an air inlet, a ring main unit is arranged in the high-voltage chamber, a transformer is arranged in the transformer chamber, the rear end in the transformer chamber is provided with an inspection door, an exhaust fan is arranged on the box body wall at the rear end in the transformer chamber, and a low-voltage cabinet is arranged in the low-voltage chamber.

Description

Box-type substation
Technical field
The invention belongs to Distribution Automation Technology field, particularly relate to a kind of box-type substation.
Background technology
Box-type substation is a kind of by high voltage switchgear, power transformer and low voltage switchgear, the complete power distribution equipment that power factor compensation device, watt hour meter making are combined into one.
The There of general box-type substation mainly adopts color steel, does not make full use of the resource of solar energy.When needs maintenance box-type substation, after having a power failure, do not have operating power, maintenance personal can not carry out simple electric operation test.
In addition, in existing, low-voltage bus bar be short-circuited fault time, the arclight produced can cause great injury to equipment and personnel.There is no quick bus protection equipment in current low-voltage bus bar system, but rely on the backup protection excision busbar short-circuit fault of upper level transformer.
Summary of the invention
The present invention is exactly for the problems referred to above, provides a kind of box-type substation being convenient to interruption maintenance.
For achieving the above object, the present invention adopts following technical scheme, the present invention includes base, base is provided with casing, casing upper end is provided with top cover, hyperbaric chamber is disposed with along casing length direction side to opposite side in its structural feature casing, transformer room, low-pressure chamber, low-pressure chamber wall box is provided with measuring room, top cover upper end is provided with solar panels, the rear end outer wall of casing is provided with controller for solar, door bottom, front end, transformer room is provided with air inlet, ring main unit is provided with in hyperbaric chamber, transformer is provided with in transformer room, in transformer room, rear end is provided with tour door, in transformer room, rear end box body wall is provided with ventilating fan, low-voltage cabinet is provided with in described low-pressure chamber.
As a kind of preferred version, transformer of the present invention adopts 10kV amorphous transformer, and ring main unit adopts 10kV ring main unit, and low-voltage cabinet adopts 0.4kV low-tension switch cabinet.
As another kind of preferred version, 10kV ring main unit of the present invention adopts SF6 gas-insulated structure, is provided with electrically and mechanical chain mechanism between on-load switch and circuit breaker.
As another kind of preferred version, 0.4kV low-tension switch cabinet of the present invention comprises the first inlet wire bus, the second inlet wire bus, service entrance switch, current transformer, outlet switch and capacitor, first inlet wire bus is connected with service entrance switch one end, the service entrance switch other end is connected with the second inlet wire bus by current transformer, second inlet wire bus is connected with outlet bus first end by connection bus, and outlet bus second end is connected with outlet switch, capacitor respectively.
As another kind of preferred version, connection bus two ends of the present invention are arranged on the cabinet of low-tension switch cabinet by bus holder, and outlet bus first end is connected with connection bus by bus bar folder.
As another kind of preferred version, box body wall of the present invention adopts between double-level-metal plate and arranges fire protection flame retarding Rotating fields.
As another kind of preferred version, thermostat is provided with in transformer room of the present invention, the signal input port of thermostat is connected with the signal output port of the temperature sensor detecting temperature in casing, and the control signal output port of thermostat is connected with the control signal input port of contactor; Contactor controlled switch one end is connected with power supply, and the other end is connected with the motor of described ventilating fan.
As another kind of preferred version; protection for feed line unit, low pressure feeder cabinet, low voltage incoming line cabinet, High-voltage Incoming Cabinet, incoming relay-protection unit is provided with in transformer room of the present invention; low voltage incoming line cabinet and High-voltage Incoming Cabinet and low-voltage bus bar are provided with arc light unit and current unit; and the arc light detected or current signal are delivered to incoming relay-protection unit by optical fiber and data line, incoming relay-protection unit exports trip signal to the circuit breaker of low voltage incoming line cabinet and High-voltage Incoming Cabinet or send alarm signal according to the data collected.
Low pressure feeder cabinet is provided with arc light unit and current unit; and the arc light detected or current signal are delivered to protection for feed line unit by optical fiber and data line, protection for feed line unit exports trip signal to the circuit breaker of low pressure feeder cabinet or send alarm signal according to the data collected.
Secondly, thermostat of the present invention adopts XMT-6000 type thermostat.
In addition, the sidewall of low-pressure chamber of the present invention is provided with the first rotating shaft, the first rotating shaft is connected with folding platform upper end, and folding platform bottom is provided with the first horizontal jack; The sidewall of the low-pressure chamber above the first rotating shaft is provided with the second rotating shaft, the second rotating shaft is connected with fixing arm-tie one end, and the fixing arm-tie other end is provided with the second horizontal jack corresponding to the first horizontal jack.
Beneficial effect of the present invention.
The present invention utilizes the solar panels above top cover of box type transformer substation to generate electricity, as interruption maintenance power supply for subsequent use.
Ring main unit, transformer, low-tension switch cabinet, metering device electric equipment and mutual connection thereof and linear quadratic control equipment are combined by the present invention, and centralized arrangement is in casing in a certain way.
Air inlet air intake of the present invention, reduces the temperature of transformer.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.Scope is not only confined to the statement of following content.
Fig. 1 is structural representation of the present invention.
Fig. 2 is vertical view of the present invention.
Fig. 3 is low-tension switch cabinet structural representation of the present invention.
Fig. 4 is bus of low-voltage switch cabinet syndeton schematic diagram of the present invention.
Tu5Shi transformer room of the present invention temperature-control circuit theory diagram.
Fig. 6 is folding platform associated components structural representation of the present invention.
Fig. 7 is arc protection part-structure schematic diagram of the present invention.
In Fig. 1-6,5-solar panels, 6-hyperbaric chamber, 7-transformer room, 8-air inlet, 9-low-pressure chamber, 10-base, 12-ring main unit, 13-transformer, 14-tour door, 15-ventilating fan, 16-low-voltage cabinet, 17-measuring room, 22-first inlet wire bus, 23-service entrance switch, 24-current transformer, 25-outlet switch, 26-capacitor, 27-bus holder, 28-connection bus, 29-second inlet wire bus, 30-outlet bus, 31-bus bar folder, 19-fix arm-tie, 20-folding platform, 21-first rotating shaft.
In Fig. 7,32-protection for feed line unit, 33-low pressure feeder cabinet, 34-low voltage incoming line cabinet, 35-transformer, 36-High-voltage Incoming Cabinet, 37-incoming relay-protection unit.
Embodiment
As shown in the figure, the present invention includes base, base is provided with casing, casing upper end is provided with top cover, hyperbaric chamber is disposed with along casing length direction side to opposite side in its structural feature casing, transformer room, low-pressure chamber, low-pressure chamber wall box is provided with measuring room, top cover upper end is provided with solar panels, the rear end outer wall of casing is provided with controller for solar, door bottom, front end, transformer room is provided with air inlet, ring main unit is provided with in hyperbaric chamber, transformer is provided with in transformer room, in transformer room, rear end is provided with tour door, in transformer room, rear end box body wall is provided with ventilating fan, low-voltage cabinet is provided with in described low-pressure chamber.
Described transformer adopts 10kV amorphous transformer, and ring main unit adopts 10kV ring main unit, and low-voltage cabinet adopts 0.4kV low-tension switch cabinet.Amorphous alloy transformer has the high energy-conservation feature of efficiency.
Described 10kV ring main unit adopts SF6 gas-insulated structure, is provided with electrically and mechanical chain mechanism between on-load switch and circuit breaker; Ensure that switch cubicle operates in operation sequence.
Described 0.4kV low-tension switch cabinet comprises the first inlet wire bus, the second inlet wire bus, service entrance switch, current transformer, outlet switch and capacitor, first inlet wire bus is connected with service entrance switch one end, the service entrance switch other end is connected with the second inlet wire bus by current transformer, second inlet wire bus is connected with outlet bus first end by connection bus, and outlet bus second end is connected with outlet switch, capacitor respectively.
Described connection bus two ends are arranged on the cabinet of low-tension switch cabinet by bus holder, and outlet bus first end is connected with connection bus by bus bar folder; Bus does not need punching to connect, and bus is the electrical connector of element, is again the strutting piece of element; And do not destroy copper bar material, avoid the heat condition that punches.
Described box body wall adopts between double-level-metal plate and arranges fire protection flame retarding Rotating fields.
Be provided with thermostat in described transformer room, the signal input port of thermostat is connected with the signal output port of the temperature sensor detecting temperature in casing, and the control signal output port of thermostat is connected with the control signal input port of contactor; Contactor controlled switch one end is connected with power supply, and the other end is connected with the motor of described ventilating fan.When the temperature of transformer room is too high, thermostat controls to start fan work, and the hot-air inside casing is discharged to outside casing.
Described thermostat adopts XMT-6000 type thermostat.
The sidewall of described low-pressure chamber is provided with the first rotating shaft, the first rotating shaft is connected with folding platform upper end, and folding platform bottom is provided with the first horizontal jack; The sidewall of the low-pressure chamber above the first rotating shaft is provided with the second rotating shaft, the second rotating shaft is connected with fixing arm-tie one end, and the fixing arm-tie other end is provided with the second horizontal jack corresponding to the first horizontal jack.Folding platform uses as electric equipment ad hoc inspection and repair.
Folding platform is vertically placed at ordinary times, when electric equipment needs maintenance, lifting folding platform is placed on horizontal level, second of fixing arm-tie horizontal jack is overlapping with the first horizontal jack, with fixed lever successively through the second horizontal jack, the first horizontal jack, connection folding platform and fixing arm-tie make folding platform maintenance level.
As shown in Figure 7; protection for feed line unit, low pressure feeder cabinet, low voltage incoming line cabinet, High-voltage Incoming Cabinet, incoming relay-protection unit is provided with in described transformer room; low voltage incoming line cabinet and High-voltage Incoming Cabinet and low-voltage bus bar are provided with arc light unit and current unit; and the arc light detected or current signal are delivered to incoming relay-protection unit by optical fiber and data line, incoming relay-protection unit exports trip signal to the circuit breaker of low voltage incoming line cabinet and High-voltage Incoming Cabinet or send alarm signal according to the data collected.
Low pressure feeder cabinet is provided with arc light unit and current unit; and the arc light detected or current signal are delivered to protection for feed line unit by optical fiber and data line, protection for feed line unit exports trip signal to the circuit breaker of low pressure feeder cabinet or send alarm signal according to the data collected.
Described protection for feed line unit can adopt RG-ALP 2XX protected location, and incoming relay-protection unit can adopt RG-ALP 1XX protected location.
Described current unit is in collection protective current and export expansion.
Described transformer adopts SBH15-M-630KVA, and transformer base and junction, bottom surface, transformer room are provided with Rubber shock-absorbing pad.
Described transformer room inner surface is provided with pitch-dark layer; Ventilating fan place is provided with the outdoor ventilation window with screen pack.
When the thermostat in transformer room reaches lower limit 35 degree, logic control starts ventilating fan contactor and closes, and ventilating fan work, blows afloat ventilation window, and the hot-air inside casing is discharged to outside casing, and ventilating fan carries out circulation air draft; When the working temperature of transformer reaches 30 degree, logic control contactor divides, ventilating fan shut down, above exhaust outlet close, by the air inlet air intake below transformer-cabinet, carry out the reduction of transformer temperature.
Described wall box plate is connected by section bar column with between door-plate, and front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.

Claims (10)

1. box-type substation, comprise base, base is provided with casing, casing upper end is provided with top cover, it is characterized in that being disposed with hyperbaric chamber along casing length direction side to opposite side in casing, transformer room, low-pressure chamber, low-pressure chamber wall box is provided with measuring room, top cover upper end is provided with solar panels, the rear end outer wall of casing is provided with controller for solar, door bottom, front end, transformer room is provided with air inlet, ring main unit is provided with in hyperbaric chamber, transformer is provided with in transformer room, in transformer room, rear end is provided with tour door, in transformer room, rear end box body wall is provided with ventilating fan, low-voltage cabinet is provided with in described low-pressure chamber.
2. according to claim 1, box-type substation, it is characterized in that described transformer adopts 10kV amorphous transformer, ring main unit adopts 10kV ring main unit, and low-voltage cabinet adopts 0.4kV low-tension switch cabinet.
3. according to claim 2, box-type substation, is characterized in that described 10kV ring main unit adopts SF6 gas-insulated structure, is provided with electrically and mechanical chain mechanism between on-load switch and circuit breaker.
4. box-type substation according to claim 3, it is characterized in that described 0.4kV low-tension switch cabinet comprises the first inlet wire bus, the second inlet wire bus, service entrance switch, current transformer, outlet switch and capacitor, first inlet wire bus is connected with service entrance switch one end, the service entrance switch other end is connected with the second inlet wire bus by current transformer, second inlet wire bus is connected with outlet bus first end by connection bus, and outlet bus second end is connected with outlet switch, capacitor respectively.
5. according to claim 4, box-type substation, is characterized in that described connection bus two ends are arranged on the cabinet of low-tension switch cabinet by bus holder, and outlet bus first end is connected with connection bus by bus bar folder.
6. according to claim 5, box-type substation, is characterized in that described box body wall adopts between double-level-metal plate and arrange fire protection flame retarding Rotating fields.
7. box-type substation according to claim 6, it is characterized in that being provided with thermostat in described transformer room, the signal input port of thermostat is connected with the signal output port of the temperature sensor detecting temperature in casing, and the control signal output port of thermostat is connected with the control signal input port of contactor; Contactor controlled switch one end is connected with power supply, and the other end is connected with the motor of described ventilating fan.
8. box-type substation according to claim 7, it is characterized in that in described transformer room, being provided with protection for feed line unit, low pressure feeder cabinet, low voltage incoming line cabinet, High-voltage Incoming Cabinet, incoming relay-protection unit, low voltage incoming line cabinet and High-voltage Incoming Cabinet and low-voltage bus bar are provided with arc light unit and current unit, and the arc light detected or current signal are delivered to incoming relay-protection unit by optical fiber and data line, incoming relay-protection unit exports trip signal to the circuit breaker of low voltage incoming line cabinet and High-voltage Incoming Cabinet or send alarm signal according to the data collected;
low pressure feeder cabinet is provided with arc light unit and current unit; and the arc light detected or current signal are delivered to protection for feed line unit by optical fiber and data line, protection for feed line unit exports trip signal to the circuit breaker of low pressure feeder cabinet or send alarm signal according to the data collected.
9. according to claim 8, box-type substation, is characterized in that described thermostat adopts XMT-6000 type thermostat.
10. box-type substation according to claim 9, the sidewall that it is characterized in that described low-pressure chamber is provided with the first rotating shaft, and the first rotating shaft is connected with folding platform upper end, and folding platform bottom is provided with the first horizontal jack; The sidewall of the low-pressure chamber above the first rotating shaft is provided with the second rotating shaft, the second rotating shaft is connected with fixing arm-tie one end, and the fixing arm-tie other end is provided with the second horizontal jack corresponding to the first horizontal jack.
CN201410681020.XA 2014-11-25 2014-11-25 Box-type substation Active CN104377582B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104377582B CN104377582B (en) 2017-09-26

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106711825A (en) * 2017-01-04 2017-05-24 繁昌县易能科技有限责任公司 Novel outdoor cabinet type transformer substation
CN108963840A (en) * 2018-05-31 2018-12-07 海宁市金能电力实业有限公司 A method of it is designed with electrical engineering massive quantity power supply and measurement
CN109326981A (en) * 2018-12-03 2019-02-12 江苏其厚智能电气设备有限公司 A kind of miniaturized intelligent preassembled transformer station
CN109346278A (en) * 2018-10-31 2019-02-15 国网上海市电力公司 Based on transformer room's temperature optimization method under hot environment
CN111276893A (en) * 2020-03-05 2020-06-12 浙江东都电器成套有限公司 Box-type substation
CN112186898A (en) * 2020-09-26 2021-01-05 成都华变电气有限公司 Intelligent box-type substation
CN113451912A (en) * 2021-07-13 2021-09-28 上海基胜能源股份有限公司 Switch board convenient to aggregate erection

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201562878U (en) * 2009-07-15 2010-08-25 深圳市禾望电气有限公司 Operation panel and equipment cabinet equipped with same
CN202977743U (en) * 2012-10-22 2013-06-05 张树程 Clamp for connecting and fixing bus bars
CN103208786A (en) * 2013-04-16 2013-07-17 国家电网公司 Rapid protection system of electric power substation
CN103248017A (en) * 2013-05-15 2013-08-14 南京弘毅电气自动化有限公司 100-percent fast protection system and method for internal fault of switch cabinet
CN203415831U (en) * 2013-08-23 2014-01-29 长江电气集团股份有限公司 Outdoor comprehensive distribution box
CN103579932A (en) * 2013-11-12 2014-02-12 长城电器集团乐山宁格朗电气有限责任公司 Small-scale intelligent energy-saving box-type substation
CN203445485U (en) * 2013-08-23 2014-02-19 上海南桥变压器有限责任公司 Safety mechanism of manhole plate of outdoor prepackage type transformer station
CN103944124A (en) * 2014-04-29 2014-07-23 波瑞电气有限公司 Rapid and safe bus connecting assembly
CN104124632A (en) * 2014-08-15 2014-10-29 辽宁电能发展股份有限公司 Combined intelligent substation
CN204205381U (en) * 2014-11-25 2015-03-11 辽宁电能发展股份有限公司 Box-type substation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201562878U (en) * 2009-07-15 2010-08-25 深圳市禾望电气有限公司 Operation panel and equipment cabinet equipped with same
CN202977743U (en) * 2012-10-22 2013-06-05 张树程 Clamp for connecting and fixing bus bars
CN103208786A (en) * 2013-04-16 2013-07-17 国家电网公司 Rapid protection system of electric power substation
CN103248017A (en) * 2013-05-15 2013-08-14 南京弘毅电气自动化有限公司 100-percent fast protection system and method for internal fault of switch cabinet
CN203415831U (en) * 2013-08-23 2014-01-29 长江电气集团股份有限公司 Outdoor comprehensive distribution box
CN203445485U (en) * 2013-08-23 2014-02-19 上海南桥变压器有限责任公司 Safety mechanism of manhole plate of outdoor prepackage type transformer station
CN103579932A (en) * 2013-11-12 2014-02-12 长城电器集团乐山宁格朗电气有限责任公司 Small-scale intelligent energy-saving box-type substation
CN103944124A (en) * 2014-04-29 2014-07-23 波瑞电气有限公司 Rapid and safe bus connecting assembly
CN104124632A (en) * 2014-08-15 2014-10-29 辽宁电能发展股份有限公司 Combined intelligent substation
CN204205381U (en) * 2014-11-25 2015-03-11 辽宁电能发展股份有限公司 Box-type substation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106711825A (en) * 2017-01-04 2017-05-24 繁昌县易能科技有限责任公司 Novel outdoor cabinet type transformer substation
CN108963840A (en) * 2018-05-31 2018-12-07 海宁市金能电力实业有限公司 A method of it is designed with electrical engineering massive quantity power supply and measurement
CN109346278A (en) * 2018-10-31 2019-02-15 国网上海市电力公司 Based on transformer room's temperature optimization method under hot environment
CN109346278B (en) * 2018-10-31 2020-11-03 国网上海市电力公司 Transformer room temperature optimization method based on high-temperature environment
CN109326981A (en) * 2018-12-03 2019-02-12 江苏其厚智能电气设备有限公司 A kind of miniaturized intelligent preassembled transformer station
CN111276893A (en) * 2020-03-05 2020-06-12 浙江东都电器成套有限公司 Box-type substation
CN111276893B (en) * 2020-03-05 2022-07-01 浙江东都电力有限公司 Box-type substation
CN112186898A (en) * 2020-09-26 2021-01-05 成都华变电气有限公司 Intelligent box-type substation
CN113451912A (en) * 2021-07-13 2021-09-28 上海基胜能源股份有限公司 Switch board convenient to aggregate erection

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