Installation and performance characteristics of Oil sealed transformer

The Oil sealed transformer adopts a fully oil-filled sealed type. The corrugated oil tank shell is a permanently sealed oil tank with its elasticity to adapt to the expansion of the oil. Oil sealed transformer has been widely used in various power distribution equipment. Next, let's take a look at the installation and performance characteristics of Oil sealed transformer. Here are some answers.

Here is the content list:

l Installation of Oil sealed transformer.

l What are the performance characteristics of Oil sealed transformer?

Installation of Oil sealed transformer.

The distribution transformer is an important component of the substation, and the Oil sealed transformer is generally installed in a separate transformer room. Oil sealed transformer relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, oil-immersed water cooling, and forced oil circulation. Generally, the most electrical device of a booster station is oil-immersed, with a metamorphosis quantitative relation of 20KV/500KV, or 20KV/220KV. Generally, power plants are used to drive their loads. Such as coal pulverizers, induced draft fans, blowers, circulating water pumps, etc. The factory transformer is also an Oil sealed transformer, and its transformation ratio is 20KV/6KV.

What are the performance characteristics of Oil sealed transformer?

First, the low-voltage winding of Oil sealed transformer generally adopts a cylindrical structure with copper foil around the shaft, except for the small-capacity copper wire. The high-voltage winding adopts a multi-layer cylindrical structure to balance the ampere-turns distribution of the winding, with low magnetic leakage, high mechanical strength, and strong short-circuit resistance. Secondly, the iron core and the winding are fastened respectively, and the fastening parts such as the height of the device and the low-voltage lead are equipped with self-locking lock nuts, and the non-suspending structure is adopted, which can withstand the shock of transportation.

Third, the coil and core are vacuum dried, and the transformer oil is vacuum filtered and oiled to minimize the moisture inside the Oil sealed transformer. Fourth, the oil tank uses corrugated sheets, which have a breathing function to compensate for the volume change of the oil caused by temperature changes, so the product does not have an oil storage tank, which reduces the height of the Oil sealed transformer. Fifth, because the corrugated sheet replaces the oil conservator, the transformer oil is isolated from the outside world, which effectively prevents the entry of oxygen and water from causing a decrease in insulation performance. Supported the on top of 5 points of performance, it's ensured that the Oil sealed transformer device doesn't ought to be modified throughout the traditional operation, that greatly reduces the upkeep price of the electrical device and prolongs the service life of the electrical device.

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