CN102684087B - Bypass operation vehicle capable of enabling users to change distribution transformer without power cutting - Google Patents
Bypass operation vehicle capable of enabling users to change distribution transformer without power cutting Download PDFInfo
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- CN102684087B CN102684087B CN201210175498.6A CN201210175498A CN102684087B CN 102684087 B CN102684087 B CN 102684087B CN 201210175498 A CN201210175498 A CN 201210175498A CN 102684087 B CN102684087 B CN 102684087B
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Abstract
The invention discloses a bypass operation vehicle capable of enabling users to change a distribution transformer without power cutting. The bypass operation vehicle comprises a chassis, a low tension fast connector, a high tension fast input connector and a high tension fast output connector. A low tension switch cubicle, a high tension switch cubicle and a transformer are arranged on the chassis, the low tension fast connector is connected with the low tension switch cubicle through a first low tension cable, the low tension switch cubicle is connected with the transformer through a second low tension cable, the transformer is connected with the high tension switch cubicle through a first high tension flexible cable, and the high tension switch cubicle is respectively connected with the high tension fast input connector and the high tension fast output connector through a second high tension flexible cable and a third high tension flexible cable. A transportation frame is added, the bypass operation vehicle can be conveniently and flexibly scheduled, cross-region first-aid repair work can be achieved, and the bypass operation vehicle has strong adaptability and high application capability.
Description
Technical field
The present invention relates to the auxiliary equipment field changing distribution transformer, particularly relate to a kind of power failure and change the bypass operation car of distribution transformer.
Background technology
In recent years, 10kV distribution network system develops rapidly, but distribution network be in operation usually have distribution transformer because of the reasons such as overhaul, technological transformation, overload, outside destroy need change.In current technology, changing distribution transformer all needs to have a power failure to a certain region, and changes distribution transformer again after having a power failure, and will affect life and the productive power of people on this circuit.
Summary of the invention
Based on this, for the problems referred to above, be necessary that proposing a kind of power failure changes the bypass operation car of distribution transformer.
Technical scheme of the present invention is: a kind of power failure changes the bypass operation car of distribution transformer, comprise chassis, low pressure fast connector, high-voltage high-speed input connector and high-voltage high-speed output connecting head, described chassis is provided with low-tension switch cabinet, high-tension switch cabinet and transformer, described low pressure fast connector is connected with described low-tension switch cabinet by the first low-voltage cable, described low-tension switch cabinet is connected with described transformer by the second low-voltage cable, described transformer is connected with described high-tension switch cabinet by the first high-voltage flexible cable, described high-tension switch cabinet is by the second high-voltage flexible cable, third high pressure flexible cable inputs connector with described high-voltage high-speed respectively, described high-voltage high-speed output connecting head connects,
This Operation Van also comprises the cable unwinding device be located on chassis, and this cable unwinding device comprises skeleton and about the two groups cable drums distributed.Object is the low voltage power cables of high pressure power taking flexible cable for depositing three 20 meters long and eight 20 meters long;
Described chassis is arranged front dividing plate and compartment is divided between proparea, between middle interval and back zone by rear bulkhead, described high-tension switch cabinet and described low-tension switch cabinet are located in described proparea, described transformer is located in described middle interval, and described cable unwinding device is located in described back zone.Object is to operate when facilitating staff's live line working, transformer is installed in middle interval, because transformer is heavier, can by weight bearing on the trailing wheel of chassis as middle interval, prevent the long-term load-bearing of crossbeam and flexural deformation, and the both sides in middle interval can arrange safety inspection door according to actual conditions, conveniently observe the trouble hunting of mobile transformer running status, installing cables actinobacillus device between back zone, facilitates the folding and unfolding of power taking cable and stores transport.
Be connected to one end of high pressure power taking flexible cable on high-voltage high-speed input connector, the other end is connected in 10kV distribution line; Be connected with low pressure fast connector one end of low voltage power cables, the other end is connected in low-voltage circuit; Close high-tension switch cabinet, close after nuclear phase low-tension switch cabinet, now transformer and distribution transformer are in juxtaposition, disconnect the separation disconnecting link of low-voltage circuit and disconnect falling fuses, the load in working region so just can be made all to transfer in this Operation Van, rely on this Operation Van to realize to customer power supply.
Wherein in an embodiment, described transformer is dry-type transformer.Because dry-type transformer does not have oil, just there is no the problems such as fire, blast, pollution, therefore electrical code, code etc. all do not require that dry-type transformer is placed in independent room is very suitable for vehicle-mounted use yet.
Wherein in an embodiment, described first low-voltage cable comprises the low-voltage cable that 12 two ends have copper lug, and these 12 low-voltage cables are divided into three groups, often organize four phases.Copper lug on first low-voltage cable is crimped on the copper core of cable, being convenient to the first low-voltage cable is arranged in the low pressure snap joint of low-tension switch cabinet and chassis side, thus conducting low-tension switch cabinet and low pressure snap joint, these 12 low-voltage cables are divided into three groups, often organize four phases, can be three customer power supplies simultaneously.
Wherein in an embodiment, described second low-voltage cable comprises the low-voltage cable that eight two ends have copper lug, and wherein two low-voltage cables are single-phase.The copper lug at the second low-voltage cable two ends is crimped on the copper core of cable, one end is convenient to low-voltage cable and is arranged on low tension switch cashier's office in a shop, one end is convenient to low-voltage cable and is arranged on step down side, thus conducting low-tension switch cabinet and step down side, the single-phase output current of two-wire can reach 1000A.
Wherein in an embodiment, described first high-voltage flexible cable comprises the high-tension cable that three one end have elbow-type cable end, one end has copper lug.Elbow-type cable end on first high-voltage flexible cable is for connecting high-tension switch cabinet, and copper lug is used for the high-pressure side of connection transformer, thus the high-pressure side of conducting high-tension switch cabinet and transformer.
Wherein in an embodiment, described second high-voltage flexible cable, third high pressure flexible cable comprises the high-tension cable that three one end have elbow-type cable end, one end has cable terminal respectively.Elbow-type cable end on second high-voltage flexible cable, third high pressure flexible cable is for connecting high-tension switch cabinet, and cable terminal is used for the high-voltage high-speed connector of connecting base plate side, thus conducting high-tension switch cabinet and high-voltage high-speed connector.
Wherein in an embodiment, described low pressure fast connector, described high-voltage high-speed input connector and described high-voltage high-speed output connecting head are all located at the side on described chassis.Facilitate low voltage power cables to be connected fast with low pressure fast connector, high pressure power taking flexible cable and high-voltage high-speed input connector and are connected fast, thus conducting low voltage power cables and low-tension switch cabinet, high pressure power taking flexible cable and high-tension switch cabinet quickly.
Wherein in an embodiment, be provided with hydraulic leg in the bottom on described chassis.Object ensures that Operation Van is when carrying out the operation of replacing transformer, can increase the overall steadiness of Operation Van.
The invention has the beneficial effects as follows:
1) introduce carrier frame, can convenient, flexiblely dispatch, realize trans-regional repairing work, there is very strong adaptability and very high application power;
2) chassis adopts before and after dividing plate be divided into before, during and after three intervals, high-tension switch cabinet and low-tension switch cabinet have been installed, to operate when facilitating staff's live line working between proparea; Dry-type transformer is installed in middle interval, because it is heavier, be placed in intermediate space and by weight bearing on the trailing wheel of chassis, the long-term load-bearing of crossbeam can be prevented and flexural deformation, intermediate space both sides also can arrange safety inspection door, convenient observation mobile transformer running status and trouble hunting; Installing cables actinobacillus device between rear area, facilitates the folding and unfolding of power taking cable and stores transport;
3) the high-voltage high-speed input connector arranged can be connected with the terminal fitting of high pressure power taking flexible cable easily and safely, and low pressure fast connector can be connected with the terminal fitting of low voltage power cables easily and safely.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram of the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the end view of Fig. 1;
Fig. 4 is the schematic diagram of Operation Van of the present invention when operation;
Description of reference numerals:
101-chassis, 102-low pressure fast connector, 103-high-voltage high-speed input connector, 104-high-voltage high-speed output connecting head, 105-low-tension switch cabinet, 106-high-tension switch cabinet, 107-dry-type transformer, 108-first low-voltage cable, 109-second low-voltage cable, 110-first high-voltage flexible cable, 111-second high-voltage flexible cable, 112-third high pressure flexible cable, 113-cable unwinding device, 113a-skeleton, 113b-cable drum, dividing plate before 114-, 115-rear bulkhead, 116-hydraulic leg, 117-high pressure power taking flexible cable, 118-low voltage power cables, 119-10kV distribution line, 120-low-voltage circuit, 121-distribution transformer.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Embodiment:
As shown in Fig. 1 to Fig. 4, a kind of power failure changes the bypass operation car of distribution transformer 121, comprises chassis 101, low pressure fast connector 102, high-voltage high-speed input connector 103 and high-voltage high-speed output connecting head 104.Described chassis 101 is provided with low-tension switch cabinet 105, high-tension switch cabinet 106, dry-type transformer 107 and cable unwinding device 113, cable unwinding device 113 comprises about skeleton 113a and the two group cable drum 113b distributed, and cable drum 113b is for the low voltage power cables 118 of the high pressure power taking flexible cable 117 and eight 20 meters long of depositing three 20 meters long.
Described low pressure fast connector 102 is connected with described low-tension switch cabinet 105 by the first low-voltage cable 108, described low-tension switch cabinet 105 is connected with described dry-type transformer 107 by the second low-voltage cable 109, described dry-type transformer 107 is connected with described high-tension switch cabinet 106 by the first high-voltage flexible cable 110, described high-tension switch cabinet 106 by the second high-voltage flexible cable 111, third high pressure flexible cable 112 inputs connector 103 with described high-voltage high-speed respectively, described high-voltage high-speed output connecting head 104 is connected.
In the present embodiment, described chassis 101 is arranged front dividing plate 114 and compartment is divided between proparea, between middle interval and back zone by rear bulkhead 115, described high-tension switch cabinet 106 and described low-tension switch cabinet 105 are located in described proparea, described dry-type transformer 107 is located in described middle interval, described cable unwinding device 113 is located in described back zone, the both sides in middle interval can arrange safety inspection door according to actual conditions, the trouble hunting of vehicle-mounted dry-type transformer 107 running status of convenient observation.Dry-type transformer 107 is installed in middle interval, because dry-type transformer 107 is heavier, by weight bearing on the trailing wheel of chassis 101, the long-term load-bearing of crossbeam can be prevented and flexural deformation as middle interval, and installing cables actinobacillus device 113 between back zone, facilitate the folding and unfolding of power taking cable and store transport.
In the present embodiment, select dry-type transformer 107 to be because dry-type transformer 107 does not have oil, also just there is no the problems such as fire, blast, pollution, therefore electrical code, code etc. all do not require that dry-type transformer 107 is placed in independent room is very suitable for vehicle-mounted use.
In the present embodiment, described first low-voltage cable 108 comprises the low-voltage cable that 12 two ends have copper lug, and these 12 low-voltage cables are divided into three groups, often organize four phases.Copper lug on first low-voltage cable 108 is crimped on the copper core of cable, being convenient to the first low-voltage cable 108 is arranged in the low pressure snap joint of low-tension switch cabinet 105 and side, chassis 101, thus conducting low-tension switch cabinet 105 and low pressure snap joint, these 12 low-voltage cables are divided into three groups, often organize four phases, can be three customer power supplies simultaneously.
In the present embodiment, described second low-voltage cable 109 comprises the low-voltage cable that eight two ends have copper lug, and wherein two low-voltage cables are single-phase.The copper lug at the second low-voltage cable 109 two ends is crimped on the copper core of cable, one end is convenient to low-voltage cable and is arranged on low-tension switch cabinet 105, one end is convenient to low-voltage cable and is arranged in dry-type transformer 107 low-pressure side, thus conducting low-tension switch cabinet 105 and dry-type transformer 107 low-pressure side, the single-phase output current of two-wire can reach 1000A.
In the present embodiment, described first high-voltage flexible cable 110 comprises the high-tension cable that three one end have elbow-type cable end, one end has copper lug.Elbow-type cable end on first high-voltage flexible cable 110 is for connecting high-tension switch cabinet 106, and copper lug is used for the high-pressure side of connection transformer, thus the high-pressure side of conducting high-tension switch cabinet 106 and transformer.
In the present embodiment, described second high-voltage flexible cable 111, third high pressure flexible cable 112 comprises the high-tension cable that three one end have elbow-type cable end, one end has cable terminal respectively.Elbow-type cable end on second high-voltage flexible cable 111, third high pressure flexible cable 112 is for connecting high-tension switch cabinet 106, cable terminal is used for the high-voltage high-speed connector of connecting base plate 101 side, thus conducting high-tension switch cabinet 106 and high-voltage high-speed connector.
In the present embodiment, described low pressure fast connector 102, described high-voltage high-speed input connector 103 and described high-voltage high-speed output connecting head 104 are all located at the side on described chassis 101.Low voltage power cables 118 is facilitated to be connected fast with low pressure fast connector 102, high pressure power taking flexible cable 117 and high-voltage high-speed input connector 103 and are connected fast, thus conducting low voltage power cables 118 and low-tension switch cabinet 105, high pressure power taking flexible cable 117 and high-tension switch cabinet 106 quickly.
In the present embodiment, being provided with hydraulic leg 116 in the bottom on described chassis 101, can ensureing that Operation Van is when carrying out 107 operation of replacing dry-type transformer, can increase the overall steadiness of Operation Van.
In 10kV bypass live line working, use this Operation Van not have a power failure to change the specific works process of distribution transformer 121 as follows:
As shown in Figure 4, distribution transformer 121 to be replaced is arranged on B point, first bypass operation car is parked in the position A point near B point, puts down hydraulic leg 116.From cable unwinding device 113, release high pressure power taking flexible cable 117, one end of high pressure power taking flexible cable 117 is installed on high-voltage high-speed input connector 103, and the other end is installed on the C point of 10kV distribution line 119.From cable unwinding device 113, release low voltage power cables 118, one end of low voltage power cables 118 is installed on low pressure fast connector 102, and the other end is installed on the E point of low-voltage circuit 120.Close high-tension switch cabinet 106, and close after nuclear phase low-tension switch cabinet 105, and now dry-type transformer 107 is in paired running state with the distribution transformer 121 of B point.Disconnect the separation disconnecting link of low-voltage circuit 120F point, disconnect the falling fuses of D point, the load now in working region is all transferred on this bypass operation car, thus gives customer power supply.
More renew distribution transformer 121 to B point, install firmly and detect qualified after, close the falling fuses of D point, the separation disconnecting link of the low-voltage circuit 120F point that closes after nuclear phase is errorless, and this stylish distribution transformer 121 is in paired running state with the dry-type transformer 107 on bypass operation car.The low-tension switch cabinet 105 of stable rear this bypass operation of disconnection car, disconnect high-tension switch cabinet 106, the load now in working region is all transferred in new distribution transformer 121, relies on new distribution transformer 121 to customer power supply.Take off the low voltage power cables 118 of E point and the high pressure power taking flexible cable 117 of C point, be recovered in cable unwinding device 113, pack up hydraulic leg 116, namely operation completes.
In whole operation process, the user in working region does not have a power failure, and adopts bypass Live line maintenance method and common Live line maintenance method, illustrates that this bypass operation car is safe and reliable, can ensure normal electricity needs again.
The above embodiment only have expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. the bypass operation car of replacing distribution transformer that do not have a power failure, comprise chassis, it is characterized in that, also comprise low pressure fast connector, high-voltage high-speed input connector and high-voltage high-speed output connecting head, described chassis is provided with low-tension switch cabinet, high-tension switch cabinet and transformer, described low pressure fast connector is connected with described low-tension switch cabinet by the first low-voltage cable, described low-tension switch cabinet is connected with described transformer by the second low-voltage cable, described transformer is connected with described high-tension switch cabinet by the first high-voltage flexible cable, described high-tension switch cabinet is by the second high-voltage flexible cable, third high pressure flexible cable inputs connector with described high-voltage high-speed respectively, described high-voltage high-speed output connecting head connects,
This Operation Van also comprises the cable unwinding device be located on chassis, this cable unwinding device comprises skeleton and about the two groups cable drums distributed, and described cable drum is for the low voltage power cables of the high pressure power taking flexible cable and eight 20 meters long of depositing three 20 meters long;
Described chassis is arranged front dividing plate and compartment is divided between proparea, between middle interval and back zone by rear bulkhead, described high-tension switch cabinet and described low-tension switch cabinet are located in described proparea, described transformer is located in described middle interval, and described cable unwinding device is located in described back zone.
2. according to claim 1 power failure changes the bypass operation car of distribution transformer, and it is characterized in that, described transformer is dry-type transformer.
3. according to claim 1 power failure changes the bypass operation car of distribution transformer, and it is characterized in that, described first low-voltage cable comprises the low-voltage cable that 12 two ends have copper lug, and these 12 low-voltage cables are divided into three groups, often organize four phases.
4. according to claim 3 power failure changes the bypass operation car of distribution transformer, and it is characterized in that, described second low-voltage cable comprises the low-voltage cable that eight two ends have copper lug, and wherein two low-voltage cables are single-phase.
5. according to claim 1 power failure changes the bypass operation car of distribution transformer, and it is characterized in that, described first high-voltage flexible cable comprises the high-tension cable that three one end have elbow-type cable end, one end has copper lug.
6. according to claim 5 power failure changes the bypass operation car of distribution transformer, it is characterized in that, described second high-voltage flexible cable, third high pressure flexible cable comprises the high-tension cable that three one end have elbow-type cable end, one end has cable terminal respectively.
7. according to claim 1 power failure changes the bypass operation car of distribution transformer, it is characterized in that, described low pressure fast connector, described high-voltage high-speed input connector and described high-voltage high-speed output connecting head are all located at the side on described chassis.
8. according to claim 1 power failure changes the bypass operation car of distribution transformer, it is characterized in that, is provided with hydraulic leg in the bottom on described chassis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210175498.6A CN102684087B (en) | 2012-05-30 | 2012-05-30 | Bypass operation vehicle capable of enabling users to change distribution transformer without power cutting |
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| CN201210175498.6A CN102684087B (en) | 2012-05-30 | 2012-05-30 | Bypass operation vehicle capable of enabling users to change distribution transformer without power cutting |
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| CN102684087A CN102684087A (en) | 2012-09-19 |
| CN102684087B true CN102684087B (en) | 2015-04-08 |
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| CN103904573B (en) * | 2014-03-19 | 2016-09-14 | 国家电网公司 | High-tension switch cabinet secondary maintenance aviation plug safety extension device |
| CN103887733B (en) * | 2014-03-31 | 2016-11-09 | 广州供电局有限公司 | 220kV bypass protection transforms the cut-in method that do not has a power failure |
| CN104158103B (en) * | 2014-09-04 | 2016-03-02 | 江苏省电力公司扬州供电公司 | A kind of city power distribution room quick-speed first-aid repair method |
| CN105470838B (en) * | 2015-08-02 | 2023-07-18 | 国网山东阳谷县供电公司 | Application method of intelligent comprehensive power supply vehicle with mobile distribution network |
| CN106300104B (en) * | 2016-10-26 | 2018-09-18 | 国网上海市电力公司 | Universal attachment device and its application of the power supply vehicle of meet an emergency with low pressure aerial condutor |
| CN106451220A (en) * | 2016-12-01 | 2017-02-22 | 华北电力科学研究院有限责任公司 | Bypass equipment and method for live replacement of equipment on same-tower multi-loop pole tower |
| CN109228998A (en) * | 2018-08-10 | 2019-01-18 | 国网山东省电力公司潍坊供电公司 | A kind of construction site electric power equipment conveying vehicle |
| CN111873889A (en) * | 2020-08-10 | 2020-11-03 | 长缆电工科技股份有限公司 | Low-voltage cable bypass power-switching emergency repair vehicle and method |
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| JP4720379B2 (en) * | 2005-08-30 | 2011-07-13 | 株式会社明電舎 | Mobile power generator |
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| CN201708445U (en) * | 2010-06-25 | 2011-01-12 | 辽宁省电力有限公司铁岭供电公司 | Emergency multifunctional power distribution recovery vehicle |
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Effective date of registration: 20200927 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |