|Release time: 2017-06-15 Click times: 1566 times|
| Work preparation before Shanghai Lingyue Electrical Equipment Manufacturing Co., Ltd. transformer core: |
⑴Preparation of tool materials: such as oil storage tank, oil filter, complete set of wrenches, douban, oil resistant rubber rope, white cloth, insulating cardboard, etc.
准备 Preparation of lifting equipment: such as cranes, inverted chains, lever hoists, tripods, wire ropes, etc. If an inverted chain is used, the hanger must be set up according to the height and weight of the transformer.
(3) Transformer oil treatment, taking oil samples for testing and testing, and preparing oil filter, including oil filter paper.
⑷ Prepare the oil pan and put the wire core by hand.
The height (h) of the hanger should not hinder the lifting of the device.
Therefore: h = h1 + h2 + h3 + h4 + h5 test = h1 height of fuel tank h2 height of body h3 height of hoisting rope h4 minimum distance of pulley (or inverted chain) h5 standby height (300 ~ 500mm)
3. Rope cover
5. Fuel tank hanging core steps:
⑴Choose the position of the hanging core and put the oil (below the market)
⑵Remove the explosion-proof cylinder, oil pillow, and gas relay. ⑶Remove the big cover bolt. ⑷Use the balance iron to hang the iron core out of the oil pan. ⑸Check:
① Core insulation ② Iron core insulation ③ Through-core bolt insulation ④ Tap switch contact insulation ⑤ High and low voltage leads ⑥ Fuel tank debris ⑦ Whether the heat pipe is clogged 测 Telemetry insulation resistance ⑨ Measure DC resistance ⑹ After checking all items, no problems should be found. Reload in time, reinstall the iron core in the fuel tank, sturdy large cover bolts, remove the attached accessories, fill in qualified oil, do a full set of pressure test after standing for 6-10 hours, and install on site.
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