CN110379610A - Single-phase double-voltage self coupling phase shifting transformer - Google Patents
Single-phase double-voltage self coupling phase shifting transformer Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
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Abstract
单相双电压自耦移动变压器涉及变压器领域。主要是为解决现有的移动变压器只能替换同电压等级变压器的问题而设计的。它包括油箱，油箱上有串并联正反接开关、有载分接开关、低压套管、高压套管、中压套管、中性点套管；油箱内的铁心柱上有低压线圈、中压线圈、两个高压线圈、高压调压线圈；油箱上方有储油柜，前方有排油注氮装置，后方有散热器。当串并联正反接转换开关档位在一档时，两柱中压线圈并联，两个高压线圈反接，输出高压额定电压为138KV，中压69KV；当串并联正反接转换开关档位在二档时，两柱中压线圈串联，两个高压线圈正接，输出高压额定电压为230KV，中压138KV。优点是能替代多个电压等级变电站运行。
A single-phase dual-voltage autotransformer relates to the field of transformers. It is mainly designed to solve the problem that the existing mobile transformer can only replace the transformer of the same voltage level. It includes a fuel tank, on which there are series-parallel forward and reverse switches, on-load tap changers, low-voltage bushings, high-voltage bushings, medium-voltage bushings, and neutral point bushings; Pressure coil, two high-voltage coils, and high-voltage regulator coil; there is an oil conservator above the fuel tank, an oil discharge and nitrogen injection device in the front, and a radiator in the rear. When the series-parallel positive and negative conversion switch gear is at the first gear, the two medium-voltage coils are connected in parallel, and the two high-voltage coils are reversed, the output high-voltage rated voltage is 138KV, and the medium voltage is 69KV; when the series-parallel positive and negative connection switch gear is In the second gear, the two medium-voltage coils are connected in series, and the two high-voltage coils are positively connected. The output high-voltage rated voltage is 230KV, and the medium voltage is 138KV. The advantage is that it can replace the operation of multiple voltage level substations.
Description
技术领域：Technical field:
本发明涉及变压器领域，具体是涉及一种安装在拖车上，用于抢修电站及应急负载的可移动的单相双电压自耦变压器。The invention relates to the field of transformers, in particular to a movable single-phase dual-voltage autotransformer installed on a trailer and used for repairing power stations and emergency loads.
背景技术：Background technique:
现有移动变压器做为急救负载或抢修工程的需要，只能替换同电压等级的变压器，使用范围窄。Existing mobile transformers are used as emergency loads or emergency repair projects, and can only be replaced by transformers of the same voltage level, and the scope of use is narrow.
发明内容：Invention content:
本发明所要解决的技术问题是提供一种将变压器及全部附件安装在一个拖车上，并能替换两种电压等级的单相双电压自耦移动变电站。The technical problem to be solved by the present invention is to provide a single-phase dual-voltage self-coupling mobile substation that installs the transformer and all accessories on a trailer and can replace two voltage levels.
上述目的是这样实现的：它包括油箱，油箱安装在拖车上，油箱的箱盖上安装有串并联正反接开关、有载分接开关、低压套管，低压套管包括低压套管Y1和低压套管Y2，油箱侧面安装有高压套管、中压套管、中性点套管，高压套管输出两个电压230（138）KV，中压套管输出两个电压138（69）KV；油箱内有铁心柱，铁心柱上套有低压线圈、中压线圈、高压线圈I、高压线圈II、高压调压线圈；The above purpose is achieved in this way: it includes a fuel tank, which is installed on a trailer, and a series-parallel positive and negative connection switch, an on-load tap changer, and a low-voltage bushing are installed on the tank cover, and the low-voltage bushing includes low-voltage bushings Y1 and Low-voltage bushing Y2, high-voltage bushing, medium-voltage bushing, and neutral point bushing are installed on the side of the fuel tank. The high-voltage bushing outputs two voltages of 230 (138) KV, and the medium-voltage bushing outputs two voltages of 138 (69) KV There is an iron core column in the fuel tank, and the iron core column is covered with a low-voltage coil, a medium-voltage coil, a high-voltage coil I, a high-voltage coil II, and a high-voltage voltage regulating coil;
油箱上方安装有储油柜，储油柜与油箱通过油管连接；An oil conservator is installed above the fuel tank, and the oil conservator and the fuel tank are connected through oil pipes;
油箱前方的拖车上安装有排油注氮装置，排油注氮装置与油箱的充氮口通过管道相连；排油注氮装置为现有产品，是从市场购得的。An oil discharge and nitrogen injection device is installed on the trailer in front of the fuel tank, and the oil discharge and nitrogen injection device is connected to the nitrogen filling port of the fuel tank through a pipeline; the oil discharge and nitrogen injection device is an existing product and is purchased from the market.
油箱后方的拖车上安装有散热器，散热器下方固定有风机，油箱上连接的循环管道伸入到散热器内，循环管道上安装有循环泵；散热器可对油箱内的油进行降温。A radiator is installed on the trailer behind the fuel tank, and a fan is fixed under the radiator. The circulation pipe connected to the fuel tank extends into the radiator, and a circulation pump is installed on the circulation pipe; the radiator can cool down the oil in the fuel tank.
低压线圈两柱串联，有左、右两个线圈，左侧线圈首头1与箱盖上的低压套管Y1相连，左侧尾头2与右侧线圈首头1相连，右侧线圈2尾头与箱盖上低压套管Y2相连。Two columns of low-voltage coils are connected in series, there are left and right coils, the left coil head 1 is connected to the low-voltage bushing Y1 on the box cover, the left tail 2 is connected to the right coil head 1, and the right coil 2 tails The head is connected with the low-voltage bushing Y2 on the box cover.
高压线圈I两柱并联，有左、右两个线圈，左右两个线圈首头1用铜管连接在一起后与油箱侧壁的高压套管H相连，两个线圈的尾头用铜管连接在一起后与有载分接开关的K触头相连。The two columns of the high-voltage coil I are connected in parallel, and there are left and right coils. The heads 1 of the left and right coils are connected together with copper tubes and then connected to the high-voltage bushing H on the side wall of the fuel tank. The tails of the two coils are connected with copper tubes. After they are together, they are connected to the K contact of the on-load tap-changer.
高压调压线圈两柱并联，有左、右两个线圈，两个线圈的出头位置4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20用铜管连接在一起后，分别与有载分接开关的17.16.15.14.13.12.11.10.9.8.7.6.5.4.3.2.1触头相连，线圈出头4接再接开关（+）触头，线圈出头20接再接开关（-）触头。有载分接开关的输出端子A与串并联正反接开关的2触头连接。The two columns of the high-voltage voltage regulating coil are connected in parallel. There are two coils on the left and right. The 17.16.15.14.13.12.11.10.9.8.7.6.5.4.3.2.1 contact of the on-load tap changer is connected, the coil outlet 4 is connected to the switch (+) contact, the coil outlet 20 is connected to the switch (-) contact head. The output terminal A of the on-load tap-changer is connected to the 2 contacts of the series-parallel forward and reverse switch.
高压线圈II两柱并联，由左、右两个线圈，左右两个线圈首头3用铜管连接在一起后与串并联正反接开关的3触头连接，左右两个线圈尾头4用铜管连接在一起后与串并联正反接开关的4触头连接。The high-voltage coil II is connected in parallel with two columns, consisting of left and right coils, the left and right coil heads 3 are connected together with copper tubes and then connected with the 3 contacts of the series-parallel positive and negative switch, and the left and right coil tails 4 are used After the copper pipes are connected together, they are connected with the 4 contacts of the series-parallel forward and reverse switch.
中压线圈通过串并联正反接开关实现串并联，由左右两个线圈组成，左侧线圈首头7与串并联正反接开关的7触头连接，左侧线圈尾头8与串并联正反接开关的8档连接；右侧线圈首头5与串并联正反接开关的5触头连接，右侧线圈尾头6与串并联正反接开关的6触头连接，串并联正反接开关的档位5引出与中压套管X连接，串并联正反接开关的档位8引出与中性点套管N连接。The medium-voltage coil is connected in series and parallel through the series-parallel forward and reverse switch, which is composed of two left and right coils. The 8-stage connection of the reverse connection switch; the head 5 of the right coil is connected with the 5 contacts of the series-parallel positive and negative connection switch, the right coil tail 6 is connected with the 6 contacts of the series-parallel positive and negative connection switch, and the series-parallel positive and negative connection The gear position 5 of the connection switch is connected to the medium voltage bushing X, and the gear position 8 of the series-parallel positive and negative switch is connected to the neutral point bushing N.
两个电压转换是这样实现的：当串并联正反接转换开关档位在一档时，两柱中压线圈并联，高压线圈I和高压线圈II反接，输出高压额定电压为138KV，中压69KV；当串并联正反接转换开关档位在二档时，两柱中压线圈串联，高压线圈I和高压线圈II线圈正接，输出高压额定电压为230KV，中压138KV。The two voltage conversions are realized in this way: when the series-parallel positive and negative conversion switch gear is at the first gear, the two medium-voltage coils are connected in parallel, the high-voltage coil I and the high-voltage coil II are reversely connected, and the output high-voltage rated voltage is 138KV, and the medium-voltage 69KV; when the series-parallel positive and negative conversion switch gear is at the second gear, the two medium-voltage coils are connected in series, the high-voltage coil I and the high-voltage coil II are positively connected, the output high-voltage rated voltage is 230KV, and the medium voltage is 138KV.
本发明的优点是：结构紧凑，方便运输，散热能力强，能替代多个电压等级固定变电站运行，可作为多个电站的备用电站，适用于紧急用电、维修用电、临时用电、工程用电、战备用电、抗灾害用等。The advantages of the present invention are: compact structure, convenient transportation, strong heat dissipation capability, can replace fixed substations with multiple voltage levels for operation, can be used as a backup power station for multiple power stations, and is suitable for emergency power consumption, maintenance power consumption, temporary power consumption, engineering Electricity, combat power, anti-disaster, etc.
附图说明：Description of drawings:
图1是本发明的主视结构示意图；Fig. 1 is the front view structure schematic diagram of the present invention;
图2是本发明的俯视结构示意图；Fig. 2 is a top view structural representation of the present invention;
图3是本发明的开关与线圈接线示意图；Fig. 3 is a schematic diagram of switch and coil wiring of the present invention;
图4是本发明的线圈排列示意图。Fig. 4 is a schematic diagram of the coil arrangement of the present invention.
具体实施方式：Detailed ways:
下面结合图1-4对本发明做进一步说明；Below in conjunction with Fig. 1-4, the present invention will be further described;
它包括油箱1，油箱安装在拖车2上，油箱的箱盖3上安装有串并联正反接开关4、有载分接开关5、低压套管6，低压套管包括低压套管Y1和低压套管Y2，油箱侧面安装有高压套管7、中压套管8、中性点套管9，高压套管输出两个电压230（138）KV，中压套管输出两个电压138（69）KV；油箱内有铁心柱，铁心柱上套有低压线圈10、中压线圈11、高压线圈I12、高压线圈II13、高压调压线圈14；It includes a fuel tank 1, which is installed on a trailer 2, and a series-parallel positive and negative connection switch 4, an on-load tap changer 5, and a low-voltage bushing 6 are installed on the tank cover 3 of the fuel tank. The low-voltage bushing includes low-voltage bushing Y1 and low-voltage bushing Bushing Y2, high-voltage bushing 7, medium-voltage bushing 8, and neutral point bushing 9 are installed on the side of the fuel tank. The high-voltage bushing outputs two voltages of 230 (138) KV, and the medium-voltage bushing outputs two voltages of 138 (69 ) KV; there is an iron core column in the fuel tank, and the iron core column is covered with a low-voltage coil 10, a medium-voltage coil 11, a high-voltage coil I12, a high-voltage coil II13, and a high-voltage voltage regulating coil 14;
油箱上方安装有储油柜15，储油柜与油箱通过油管连接；An oil conservator 15 is installed above the fuel tank, and the oil conservator and the fuel tank are connected through oil pipes;
油箱前方的拖车上安装有排油注氮装置16，排油注氮装置与油箱的充氮口通过管道相连；排油注氮装置为现有产品，是从市场购得的。The oil discharge nitrogen injection device 16 is installed on the trailer in front of the fuel tank, and the oil discharge nitrogen injection device is connected with the nitrogen filling port of the fuel tank by pipeline; The oil discharge nitrogen injection device is an existing product and is purchased from the market.
油箱后方的拖车上安装有散热器17，散热器下方固定有风机18，油箱上连接的循环管道19伸入到散热器内，循环管道上安装有循环泵20；散热器可对油箱内的油进行降温。A radiator 17 is installed on the trailer at the fuel tank rear, and a fan 18 is fixed below the radiator. The circulation pipeline 19 connected on the fuel tank stretches into the radiator, and the circulation pump 20 is installed on the circulation pipeline; Cool down.
低压线圈两柱串联，有左、右两个线圈，左侧线圈首头1与箱盖上的低压套管Y1相连，左侧线圈尾头2与右侧线圈首头1相连，右侧线圈2尾头与箱盖上低压套管Y2相连。Two columns of the low-voltage coil are connected in series, there are left and right coils, the left coil head 1 is connected to the low-voltage bushing Y1 on the box cover, the left coil tail 2 is connected to the right coil head 1, and the right coil 2 The tail is connected with the low-voltage bushing Y2 on the box cover.
高压线圈I两柱并联，有左、右两个线圈，左右两个线圈首头1用铜管连接在一起后与油箱侧壁的高压套管H相连，两个线圈的尾头用铜管连接在一起后与有载分接开关的K触头相连。The two columns of the high-voltage coil I are connected in parallel, and there are left and right coils. The heads 1 of the left and right coils are connected together with copper tubes and then connected to the high-voltage bushing H on the side wall of the fuel tank. The tails of the two coils are connected with copper tubes. After they are together, they are connected to the K contact of the on-load tap-changer.
高压调压线圈两柱并联，有左、右两个线圈，两个线圈的出头位置4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20用铜管连接在一起后，分别与有载分接开关的17.16.15.14.13.12.11.10.9.8.7.6.5.4.3.2.1触头相连，线圈出头4接再接开关（+）触头，线圈出头20接再接开关（-）触头。有载分接开关的输出端子A与串并联正反接开关的2触头连接。The two columns of the high-voltage voltage regulating coil are connected in parallel. There are two coils on the left and right. The 17.16.15.14.13.12.11.10.9.8.7.6.5.4.3.2.1 contact of the on-load tap changer is connected, the coil outlet 4 is connected to the switch (+) contact, the coil outlet 20 is connected to the switch (-) contact head. The output terminal A of the on-load tap-changer is connected to the 2 contacts of the series-parallel forward and reverse switch.
高压线圈II两柱并联，由左、右两个线圈，左右两个线圈首头3用铜管连接在一起后与串并联正反接开关的3触头连接，左右两个线圈尾头4用铜管连接在一起后与串并联正反接开关的4触头连接。The high-voltage coil II is connected in parallel with two columns, consisting of left and right coils, the left and right coil heads 3 are connected together with copper tubes and then connected with the 3 contacts of the series-parallel positive and negative switch, and the left and right coil tails 4 are used After the copper pipes are connected together, they are connected with the 4 contacts of the series-parallel forward and reverse switch.
中压线圈通过串并联正反接开关实现串并联，由左右两个线圈组成，左侧线圈首头7与串并联正反接开关的7触头连接，左侧线圈尾头8与串并联正反接开关的8档连接；右侧线圈首头5与串并联正反接开关的5触头连接，右侧线圈尾头6与串并联正反接开关的6触头连接，串并联正反接开关的档位5引出与中压套管X连接，串并联正反接开关的档位8引出与中性点套管N连接。The medium-voltage coil is connected in series and parallel through the series-parallel forward and reverse switch, which is composed of two left and right coils. The 8-stage connection of the reverse connection switch; the head 5 of the right coil is connected with the 5 contacts of the series-parallel positive and negative connection switch, the right coil tail 6 is connected with the 6 contacts of the series-parallel positive and negative connection switch, and the series-parallel positive and negative connection The gear position 5 of the connection switch is connected to the medium voltage bushing X, and the gear position 8 of the series-parallel positive and negative switch is connected to the neutral point bushing N.
两个电压转换是这样实现的：当串并联正反接转换开关档位在一档时，两柱中压线圈并联，高压线圈I和高压线圈II反接，输出高压额定电压为138KV，中压69KV；当串并联正反接转换开关档位在二档时，两柱中压线圈串联，高压线圈I和高压线圈II线圈正接，输出高压额定电压为230KV，中压138KV。The two voltage conversions are realized in this way: when the series-parallel positive and negative conversion switch gear is at the first gear, the two medium-voltage coils are connected in parallel, the high-voltage coil I and the high-voltage coil II are reversely connected, and the output high-voltage rated voltage is 138KV, and the medium-voltage 69KV; when the series-parallel positive and negative conversion switch gear is at the second gear, the two medium-voltage coils are connected in series, the high-voltage coil I and the high-voltage coil II are positively connected, the output high-voltage rated voltage is 230KV, and the medium voltage is 138KV.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
| WO2024108685A1 (en) * | 2022-11-21 | 2024-05-30 | 吴江变压器有限公司 | Single-phase self-coupling excitation-free medium-voltage multi-tap voltage-regulating transformer and voltage regulation method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
| WO2024108685A1 (en) * | 2022-11-21 | 2024-05-30 | 吴江变压器有限公司 | Single-phase self-coupling excitation-free medium-voltage multi-tap voltage-regulating transformer and voltage regulation method therefor |
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