¥ 799.00
¥ 799.00
¥ 799.00
¥ 799.00
¥ 799.00
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•如果变压器未配备滚轮,并且如果将其安装在撬底座上,则
必须使用涂有润滑脂的钢板将变压器滑动到其终位置,以保护底座表面
并使移动更容易。板材应形成一个连续的表面,并且必须清除
终顶升区域。
•必须使用吊索和绞车拉动变压器,如图3.3所示。仅使用
用于牵引的指定牵引吊耳。绞车的牵引能力应大于(主体
重量x 0.15吨。滑轮的容量应为(主体重量x 0.15/2)吨。
•顶升时,仅将千斤顶放置在规定的顶升垫下。顶升时,确保所有
同时操作四个千斤顶。
•下放前,清除变压器底部的所有油脂污垢等。
图3.3
TBI AF/IMS001/R3变压器安装、调试、运行和维护
38 | P a g e
第3节
安装
TBI AF/IMS001/R3变压器安装、调试、运行和维护
39 | P a g e
3、安装
3.1位置
变压器应存放在通风良好的地方,无过多灰尘、腐蚀性物质
烟气等。油箱和散热器需要充分通风,以便散热。
如果变压器封闭在
房间
3.2基础
基础应牢固、水平、干燥。如果安装了滚轴,应安装合适的导轨
假如
3.3排油规定
排油的必要规定;如果发生火灾,应通过浸油的方式进行
凹坑。必要时,还应提供防火隔墙。
3.4拆卸部件的组装
拆卸运输的各种部件应适当组装。以下是
各种尺寸紧固件的扭矩值(Nm)。(螺母和螺栓)
3.4.1主油箱
将主油箱保持在其运行位置。锁定滚轮,以防止
轨道上的意外移动。从油箱底部抽取油样,测试其击穿电压(BDV)。
3.4.2衬套
清洁衬套,并检查是否有毛裂纹或其他损坏。测试IR值
每个套管配有500V兆欧表。它应为100 M欧姆或更大。注意衬套的细节
在“调试报告”中安装所有衬套,确保测试盖完全拧紧,
因此,积极接地相同。根据绝缘层调整灭弧角间隙
协调。
• If the transformer is not provided with rollers and if it is to be erected on its skid base, the transformer must be slid to its final position using greased steel plates to protect the plinth surface and make movement easier. The plates should form a continuous surface and it must clear the final jacking areas. • The transformer must be pulled by using slings and winches as shown in Fig. 3.3. Use only the specified haulage lugs for pulling. Pulling capacity of winches should be more than (Main body weight x 0.15/4) tons. Pulleys should have a capacity of (Main body weight x 0.15/2) tons. • When jacking, position the jacks under specified jacking pads only. When jacking, ensure that all four jacks are operated simultaneously. • Before lowering, clean all grease dirt etc. from the under base of the transformer. Fig 3.3 TBI AF/IMS001/R3 Installation, Commissioning, Operation & Maintenance of Transformer 38 | P a g e SECTION-3 INSTALLATION TBI AF/IMS001/R3 Installation, Commissioning, Operation & Maintenance of Transformer 39 | P a g e 3. INSTALLATION 3.1 LOCATION The transformer should be kept in a well-ventilated place, free from excessive dust, corrosive fumes etc. Adequate ventilation is necessary for tank and radiators so that they can dissipate heat. There should be clear space of about 1.25 m on all sides of the transformers if it is enclosed in a room. 3.2 FOUNDATION Foundation should be firm, horizontal and dry. where rollers are fitted, suitable rails should be provided. 3.3 PROVISIONS FOR OIL DRAINING Necessary provisions for oil draining; in the event of a fire, should be made by way of Oil Soak Pits. Fire separation walls should also be provided when necessary. 3.4 ASSEMBLY OF DISMANTLED COMPONENTS Various components dismantled for transportation should be duly assembled. Following are the torque values in Nm for various sizes of fasteners. (nuts & bolts) 3.4.1 MAIN TANK Keep the main tank in its permanent position of operation. Lock the rollers to prevent any accidental movement on rails. Draw an oil sample from the bottom of the tank and test it for Breakdown-Voltage (BDV). 3.4.2 BUSHINGS Clean the bushings and check that there are no hair-cracks or other damages. Test IR value of each bushing with a 500V Megger. It should be 100 M ohms or greater. Note details of Bushings in the "Commissioning Report." Mount all the bushings, ensure that the test cap is fully tightened, thus positively grounding the same. Adjust the Arcing Horn Gaps in accordance with the Insulation Co-ordination.