CN205723088U - A kind of ULTC Oiltank structure - Google Patents

A kind of ULTC Oiltank structure Download PDF

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Publication number
CN205723088U
CN205723088U CN201620626752.3U CN201620626752U CN205723088U CN 205723088 U CN205723088 U CN 205723088U CN 201620626752 U CN201620626752 U CN 201620626752U CN 205723088 U CN205723088 U CN 205723088U
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oil tank
transformer
load tap
changer
terminal
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董景义
陈衍娟
陈钦
陈衍红
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Shandong Dachi Electric Co Ltd
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Shandong Dachi Electric Co Ltd
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Abstract

本实用新型涉及一种变压器,特别涉及一种有载调压变压器油箱结构。该有载调压变压器油箱结构,包括变压器本体,变压器本体设置于变压器本体油箱内,其特征是:所述变压器本体油箱外侧连接设有有载分接开关油箱。本实用新型的有益效果是:解决了有载分接开关油室中污染或裂解严重的变压器油直接渗入变压器本体油箱,造成变压器故障误判断、不必要的恐慌、不必要的停电等问题;避免了变压器本体真空干燥、抽真空、真空注油等工艺对变压器有载分接开关及附属设备的影响;降低了维修工作量,有载分接开关发生严重故障而无法继续运行时可确保变压器在较短时间内恢复正常运行,将停电损失降至最低,同时为有载分接开关检修或更换赢得了足够的时间。

The utility model relates to a transformer, in particular to an oil tank structure of an on-load voltage regulating transformer. The oil tank structure of the on-load tap-changing transformer includes a transformer body, and the transformer body is arranged in the oil tank of the transformer body. The beneficial effect of the utility model is that: it solves the problem that the polluted or severely cracked transformer oil in the oil chamber of the on-load tap changer directly infiltrates into the oil tank of the transformer body, causing misjudgment of transformer faults, unnecessary panic, unnecessary power outages, etc.; The influence of vacuum drying, vacuuming, vacuum oiling and other processes on the transformer body on the transformer on-load tap-changer and auxiliary equipment is reduced; the maintenance workload is reduced, and when the on-load tap-changer has a serious failure and cannot continue to operate, it can ensure that the transformer is in a relatively low temperature. The normal operation can be resumed in a short time, the power failure loss is minimized, and at the same time, sufficient time is gained for the maintenance or replacement of the on-load tap-changer.

Description

一种有载调压变压器油箱结构Oil tank structure of an on-load voltage regulating transformer

(一)技术领域(1) Technical field

本发明涉及一种变压器,特别涉及一种有载调压变压器油箱结构。The invention relates to a transformer, in particular to an oil tank structure of an on-load voltage regulating transformer.

(二)背景技术(2) Background technology

随着我国国民经济快速发展,供电质量要求越来越高。变压器作为电力系统中主要设备之一,其将受到电网电压波动的直接影响,为了确保供电质量,有载调压变压器就应运而生。其主要特点是,在变压器不停电的情况下就可以根据电网电压波动情况随时调节分接档位,以确保变压器二次侧电压数值基本不变。With the rapid development of my country's national economy, the quality requirements of power supply are getting higher and higher. As one of the main equipment in the power system, the transformer will be directly affected by the voltage fluctuation of the power grid. In order to ensure the quality of power supply, the on-load tap changer emerges as the times require. Its main feature is that the tap position can be adjusted at any time according to the fluctuation of the grid voltage when the transformer is not powered off, so as to ensure that the voltage value of the secondary side of the transformer is basically unchanged.

随着越来越多的有载调压变压器投入到商业运行,其自身的一些不足也逐步显现出来,如有载分接开关油室渗漏(由于油室渗漏而引起变压器本体中的变压器色谱等超标的现象时有发生)、有载开关接线端子接触不良、有载分接开关本身故障等,都有可能导致变压器本体故障误判断、不必要的停电等。As more and more on-load tap changer transformers are put into commercial operation, some of their own shortcomings are gradually emerging, such as the leakage of the oil chamber of the on-load tap changer (due to the leakage of the oil chamber, the transformer in the transformer body Chromatography and other phenomena that exceed the standard occur from time to time), poor contact of the on-load switch terminal, failure of the on-load tap-changer itself, etc., may lead to misjudgment of transformer failure and unnecessary power outages.

(三)发明内容(3) Contents of the invention

本发明为了弥补现有技术的不足,提供了一种结构合理、引线方便、检修方便、可靠性高、安全性高、便于故障分析与处理、能有效减少变压器本体故障的有载调压变压器油箱结构。In order to make up for the deficiencies of the prior art, the present invention provides an oil tank for an on-load tap changer with reasonable structure, convenient lead wires, convenient maintenance, high reliability, high safety, easy fault analysis and treatment, and can effectively reduce transformer body faults. structure.

本发明是通过如下技术方案实现的:The present invention is achieved through the following technical solutions:

一种有载调压变压器油箱结构,包括变压器本体,变压器本体设置于变压器本体油箱内,其特征是:所述变压器本体油箱外侧连接设有有载分接开关油箱。An oil tank structure of an on-load tap changer transformer, including a transformer body, the transformer body is arranged in the oil tank of the transformer body, and is characterized in that: an oil tank of an on-load tap changer is connected to the outer side of the oil tank of the transformer body.

所述变压器本体油箱与有载分接开关油箱之间设有第一接线端子,第一接线端子一侧与变压器本体油箱内的第二接线端子相连接,第一接线端子另一侧与有载分接开关油箱内的第三接线端子相连接,第三接线端子与第四接线端子相连接,第四接线端子与有载分接开关油箱内的有载分接开关定触头相连接。A first connection terminal is provided between the oil tank of the transformer body and the oil tank of the on-load tap-changer, one side of the first connection terminal is connected to the second connection terminal in the oil tank of the transformer body, and the other side of the first connection terminal is connected to the on-load tap-changer oil tank. The third connection terminal in the oil tank of the tap changer is connected, the third connection terminal is connected with the fourth connection terminal, and the fourth connection terminal is connected with the fixed contact of the on-load tap changer in the oil tank of the on-load tap changer.

所述第一接线端子与第二接线端子通过第一紧固件相连接,第三接线端子插入第一线接端子内与第一接线端子相连接,第四接线端子与有载分接开关定触头通过第二紧固件相连接。The first connecting terminal is connected with the second connecting terminal through the first fastener, the third connecting terminal is inserted into the first connecting terminal and connected with the first connecting terminal, and the fourth connecting terminal is connected with the fixed on-load tap changer. The contacts are connected by a second fastener.

所述第三接线端子与第四接线端子连接于纸包铜绞线上,第二接线端子通过纸包铜绞线与变压器本体内的分接引线相连接。The third connecting terminal and the fourth connecting terminal are connected to the paper-wrapped copper stranded wire, and the second connecting terminal is connected to the tap lead wire in the transformer body through the paper-wrapped copper stranded wire.

所述第一接线端子浇注于树脂面板上,树脂面板置于变压器本体油箱与有载分接开关油箱之间。The first connecting terminal is poured on the resin panel, and the resin panel is placed between the oil tank of the transformer body and the oil tank of the on-load tap changer.

所述变压器本体油箱与有载分接开关油箱通过第三紧固件连接。The oil tank of the transformer body is connected with the oil tank of the on-load tap changer through a third fastener.

本发明的有益效果是:解决了有载分接开关油室中污染或裂解严重的变压器油直接渗入变压器本体油箱,造成变压器故障误判断、不必要的恐慌、不必要的停电等问题;有效避免了变压器本体真空干燥、抽真空、真空注油等工艺对变压器有载分接开关及其附属设备的影响;降低了维修工作量,有载分接开关发生严重故障而无法继续运行时可以确保变压器在较短的时间内恢复正常运行,将停电损失降至最低,同时为有载分接开关检修或更换赢得了足够的时间。The beneficial effects of the present invention are: solving the problem that the polluted or severely cracked transformer oil in the oil chamber of the on-load tap changer directly infiltrates into the oil tank of the transformer body, causing misjudgment of transformer faults, unnecessary panic, unnecessary power outages, etc.; effectively avoiding The effects of vacuum drying, vacuuming, vacuum oiling and other processes on the transformer body on the transformer on-load tap-changer and its ancillary equipment are reduced; the maintenance workload is reduced, and the transformer can be guaranteed to be in operation when the on-load tap-changer has a serious failure and cannot continue to operate. Normal operation can be resumed within a short period of time, the loss of power failure is minimized, and at the same time, sufficient time is gained for the maintenance or replacement of the on-load tap-changer.

(四)附图说明(4) Description of drawings

下面结合附图对本发明作进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings.

附图1为本发明的主视结构示意图;Accompanying drawing 1 is the main view structure schematic diagram of the present invention;

附图2为本发明的俯视结构示意图;Accompanying drawing 2 is the top view structural representation of the present invention;

附图3为本发明的第一接线端子与树脂面板装配主视结构示意图;Accompanying drawing 3 is the schematic structural diagram of the front view of the assembly of the first connecting terminal and the resin panel of the present invention;

附图4为本发明的第一接线端子与树脂面板装配侧视结构示意图;Accompanying drawing 4 is the schematic diagram of the side view structure of the assembly of the first connecting terminal and the resin panel of the present invention;

附图5为本发明的第一接线端子与树脂面板装配放大结构示意图;Accompanying drawing 5 is the enlarged schematic diagram of the assembled structure of the first connecting terminal and the resin panel of the present invention;

附图6为本发明的接线端子连接结构示意图;Accompanying drawing 6 is the schematic diagram of connection structure of terminal block of the present invention;

图中,1变压器本体,2变压器本体油箱,3有载分接开关油箱,4第一接线端子,5第二接线端子,6第三接线端子,7第四接线端子,8有载分接开关定触头,9第一紧固件,10第二紧固件,11纸包铜绞线,12树脂面板,13第三紧固件。In the figure, 1 transformer body, 2 transformer body oil tank, 3 on-load tap-changer oil tank, 4 first terminal, 5 second terminal, 6 third terminal, 7 fourth terminal, 8 on-load tap-changer Fixed contacts, 9 first fasteners, 10 second fasteners, 11 paper-wrapped copper strands, 12 resin panels, 13 third fasteners.

(五)具体实施方式(5) Specific implementation methods

附图为本发明的一种具体实施例。该实施例包括变压器本体1,变压器本体1设置于变压器本体油箱2内,变压器本体油箱2外侧连接设有有载分接开关油箱3。变压器本体油箱2与有载分接开关油箱3之间设有第一接线端子4,第一接线端子4一侧与变压器本体油箱2内的第二接线端子5相连接,第一接线端子4另一侧与有载分接开关油箱3内的第三接线端子6相连接,第三接线端子6与第四接线端子7相连接,第四接线端子7与有载分接开关油箱3内的有载分接开关定触头8相连接。第一接线端子4与第二接线端子5通过第一紧固件9相连接,第三接线端子6插入第一线接端子4内与第一接线端子4相连接,第四接线端子7与有载分接开关定触头8通过第二紧固件10相连接。第三接线端子6与第四接线端子7连接于纸包铜绞线11上,第二接线端子5通过纸包铜绞线11与变压器本体1内的分接引线相连接。第一接线端子4浇注于树脂面板12上,树脂面板12置于变压器本体油箱2与有载分接开关油箱3之间。变压器本体油箱2与有载分接开关油箱3通过第三紧固件13连接。Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes a transformer body 1, the transformer body 1 is arranged in a transformer body oil tank 2, and an on-load tap changer oil tank 3 is connected to the outer side of the transformer body oil tank 2. A first connection terminal 4 is provided between the oil tank 2 of the transformer body and the oil tank 3 of the on-load tap changer. One side of the first connection terminal 4 is connected to the second connection terminal 5 in the oil tank 2 of the transformer body. One side is connected to the third terminal 6 in the oil tank 3 of the on-load tap-changer, the third terminal 6 is connected to the fourth terminal 7, and the fourth terminal 7 is connected to the on-load tap-changer oil tank 3. The fixed contact 8 of the on-load tap changer is connected. The first connecting terminal 4 is connected with the second connecting terminal 5 through the first fastener 9, the third connecting terminal 6 is inserted into the first connecting terminal 4 and connected with the first connecting terminal 4, and the fourth connecting terminal 7 is connected with the first connecting terminal 4. The fixed contacts 8 of the on-load tap changer are connected through the second fastener 10 . The third connecting terminal 6 and the fourth connecting terminal 7 are connected to the paper-wrapped copper stranded wire 11 , and the second connecting terminal 5 is connected to the tap lead wire in the transformer body 1 through the paper-wrapped copper stranded wire 11 . The first connection terminal 4 is cast on the resin panel 12 , and the resin panel 12 is placed between the oil tank 2 of the transformer body and the oil tank 3 of the on-load tap changer. The oil tank 2 of the transformer body is connected with the oil tank 3 of the on-load tap changer through a third fastener 13 .

采用本发明的一种有载调压变压器油箱结构,将有载分接开关的切换开关及其油室、分接选择器等单独放置在有载分接开关油箱3内,变压器器身单独放置在变压器本体油箱2内,有载分接开关油箱3与变压器本体油箱2通过第三紧固件13连接在一起。变压器本体1中的分接引线通过有载分接开关油箱3与变压器本体油箱2之间的树脂面板12上的第一接线端子4与有载分接开关定触头8对应连接在一起,其中所用的引线为纸包铜绞线11。第一接线端子4直接浇注在树脂面板12上;在变压器本体油箱2侧的第一接线端子4是通过第一紧固件9与焊接在纸包铜绞线11上的第二接线端子5对应连接在一起;在有载分接开关油箱3侧的第一接线端子4是通过插拔连接的方式与焊接至纸包铜绞线11上的第三接线端子6连接在一起;有载分接开关定触头8与压接在纸包铜绞线11上的第四接线端子7采用第二紧固件10连接在一起。Using the oil tank structure of the on-load tap changer of the present invention, the diverter switch of the on-load tap changer and its oil chamber, tap selector, etc. are placed separately in the on-load tap-changer oil tank 3, and the transformer body is placed separately In the oil tank 2 of the transformer body, the oil tank 3 of the on-load tap changer and the oil tank 2 of the transformer body are connected together through a third fastener 13 . The tap leads in the transformer body 1 are correspondingly connected to the fixed contacts 8 of the on-load tap-changer through the first connection terminal 4 on the resin panel 12 between the on-load tap-changer oil tank 3 and the transformer body oil tank 2, wherein The leads used are paper-wrapped copper strands 11. The first connection terminal 4 is directly cast on the resin panel 12; the first connection terminal 4 on the side of the transformer body oil tank 2 corresponds to the second connection terminal 5 welded on the paper-wrapped copper strand 11 through the first fastener 9 Connected together; the first terminal 4 on the side of the oil tank 3 of the on-load tap changer is connected to the third terminal 6 welded to the paper-wrapped copper strand 11 through a plug-in connection; The switch fixed contact 8 is connected with the fourth terminal 7 crimped on the paper-wrapped copper strand 11 by using the second fastener 10 .

采用本发明的一种有载调压变压器油箱结构,由于变压器本体油箱2与有载分接开关油箱3之间没有油的联系,所以若变压器本体1出现故障,只需对变压器本体1进行放油、吊芯及处理等;若有载分接开关出现故障,只需对有载分接开关油箱3进行放油、检查和维修等;大大地降低了维修工作量。若在变压器运行现场,有载分接开关发生严重故障而无法继续运行,还可以将有载分接开关吊出检修,甚至返厂检修。此时,只需将处于运行分接的,且接至有载分接开关定触头8的分接引线直接接地,其余非运行状态的分接引线拆掉即可。此种状态的变压器相当于无励磁调压变压器,但可以确保变压器在较短的时间内恢复正常运行,将停电损失降至最低,同时为有载分接开关检修或更换赢得了足够的时间。With the oil tank structure of the on-load tap changer of the present invention, since there is no oil connection between the oil tank 2 of the transformer body and the oil tank 3 of the on-load tap changer, if the transformer body 1 fails, only the transformer body 1 needs to be released. Oil, lifting core and treatment, etc.; if the on-load tap-changer fails, it only needs to drain oil, check and repair the oil tank 3 of the on-load tap-changer; greatly reducing the maintenance workload. If the on-load tap-changer has a serious failure and cannot continue to operate at the transformer operation site, the on-load tap-changer can also be hoisted out for inspection, or even returned to the factory for inspection. At this time, it is only necessary to directly ground the tap leads that are in running tap and connected to the fixed contact 8 of the on-load tap changer, and remove the rest of the tap leads that are not in operation. The transformer in this state is equivalent to an off-excitation tap-changing transformer, but it can ensure that the transformer returns to normal operation in a short period of time, minimize the loss of power failure, and at the same time gain enough time for the maintenance or replacement of the on-load tap-changer.

Claims (6)

1.一种有载调压变压器油箱结构,包括变压器本体(1),变压器本体(1)设置于变压器本体油箱(2)内,其特征是:所述变压器本体油箱(2)外侧连接设有有载分接开关油箱(3)。1. An oil tank structure of an on-load tap-changing transformer, including a transformer body (1), and the transformer body (1) is arranged in the transformer body oil tank (2), which is characterized in that: the outer side of the transformer body oil tank (2) is connected with On-load tap-changer oil tank (3). 2.根据权利要求1所述的一种有载调压变压器油箱结构,其特征是:所述变压器本体油箱(2)与有载分接开关油箱(3)之间设有第一接线端子(4),第一接线端子(4)一侧与变压器本体油箱(2)内的第二接线端子(5)相连接,第一接线端子(4)另一侧与有载分接开关油箱(3)内的第三接线端子(6)相连接,第三接线端子(6)与第四接线端子(7)相连接,第四接线端子(7)与有载分接开关油箱(3)内的有载分接开关定触头(8)相连接。2. The oil tank structure of an on-load tap changer according to claim 1, characterized in that: a first terminal ( 4), one side of the first terminal (4) is connected to the second terminal (5) in the oil tank (2) of the transformer body, and the other side of the first terminal (4) is connected to the on-load tap-changer oil tank (3 ), the third terminal (6) is connected to the fourth terminal (7), the fourth terminal (7) is connected to the on-load tap-changer oil tank (3) The fixed contacts (8) of the on-load tap-changer are connected. 3.根据权利要求2所述的一种有载调压变压器油箱结构,其特征是:所述第一接线端子(4)与第二接线端子(5)通过第一紧固件(9)相连接,第三接线端子(6)插入第一线接端子(4)内与第一接线端子(4)相连接,第四接线端子(7)与有载分接开关定触头(8)通过第二紧固件(10)相连接。3. The oil tank structure of an on-load tap-changing transformer according to claim 2, characterized in that: the first connecting terminal (4) is connected to the second connecting terminal (5) through the first fastener (9). connection, the third connection terminal (6) is inserted into the first connection terminal (4) to connect with the first connection terminal (4), and the fourth connection terminal (7) passes through the fixed contact of the on-load tap-changer (8) The second fastener (10) is connected. 4.根据权利要求2所述的一种有载调压变压器油箱结构,其特征是:所述第三接线端子(6)与第四接线端子(7)连接于纸包铜绞线(11)上,第二接线端子(5)通过纸包铜绞线(11)与变压器本体(1)内的分接引线相连接。4. The oil tank structure of an on-load tap-changing transformer according to claim 2, characterized in that: the third terminal (6) and the fourth terminal (7) are connected to the paper-wrapped copper strand (11) Above, the second connection terminal (5) is connected to the tap lead wire in the transformer body (1) through the paper-wrapped copper stranded wire (11). 5.根据权利要求2所述的一种有载调压变压器油箱结构,其特征是:所述第一接线端子(4)浇注于树脂面板(12)上,树脂面板(12)置于变压器本体油箱(2)与有载分接开关油箱(3)之间。5. The oil tank structure of an on-load tap-changing transformer according to claim 2, characterized in that: the first terminal (4) is cast on the resin panel (12), and the resin panel (12) is placed on the transformer body Between oil tank (2) and on-load tap-changer oil tank (3). 6.根据权利要求1所述的一种有载调压变压器油箱结构,其特征是:所述变压器本体油箱(2)与有载分接开关油箱(3)通过第三紧固件(13)连接。6. The oil tank structure of an on-load tap changer according to claim 1, characterized in that: the oil tank of the transformer body (2) and the oil tank of the on-load tap changer (3) pass through the third fastener (13) connect.
CN201620626752.3U 2016-06-23 2016-06-23 A kind of ULTC Oiltank structure Expired - Fee Related CN205723088U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105976991A (en) * 2016-06-23 2016-09-28 山东达驰电气有限公司 On-load voltage regulating transformer tank structure
CN113611483A (en) * 2021-07-23 2021-11-05 保定天威保变电气股份有限公司 Converter transformer with independent switch and use method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105976991A (en) * 2016-06-23 2016-09-28 山东达驰电气有限公司 On-load voltage regulating transformer tank structure
CN113611483A (en) * 2021-07-23 2021-11-05 保定天威保变电气股份有限公司 Converter transformer with independent switch and use method

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