How much KW 250 w transformer can carry?

The general power factor is calculated by 0.85, P=S*COSφ=250*0.85=212.5(KW), 250 w transformer can bear 212.5KW load.
Distribution transformer classification according to the insulation medium is divided into oil immersed transformer and dry transformer;According to the different voltage regulation mode, it can be divided into non - excitation voltage regulator transformer and load voltage regulator transformer.
1 Oil-immersed transformer is divided into:
1) Unenclosed oil-immersed transformer: mainly S8, S9, S10 and other series products, widely used in industrial and mining enterprises, agriculture and civil buildings.
2) Closed oil-immersed transformer: mainly S9, S9-M, S10-M and other series of products, mostly used in the oil, chemical industry in the place of more than oil, more chemical substances.
3) Sealed oil-immersed transformer: mainly BS9, S9-, S10-, S11-MR, SH, SH12-M and other series of products, can be used for power distribution in industrial and mining enterprises, agriculture, civil buildings and other places.
2 Dry type transformer is divided into:
1) Wrapped coil type dry transformer: mainly SCB8, SC (B) 9, SC (B) 10, SCR-10 and other series products, suitable for high-rise buildings, commercial centers, airports, stations, subways, hospitals, factories and other places.
2) Non-encapsulated coil dry transformer: mainly SG10 series products, suitable for high-rise buildings, commercial centers, airports, stations, subways, petrochemical and other places.Extended information:
Safety technical requirements for distribution transformer installation
1. Safety technical requirements of the distribution transformer installed on the column (1) Transformer base should not be less than 2.5m from the ground, and all iron parts should be grounded.⑵ The exposed conductive part should be more than 3.5m above the ground.
The transformer base should be fixed with the platform, and the upper part should be fixed with the pole.The upper lead and the lower lead of the transformer should be multi-strand insulated wire.The high voltage drop type fuse should not be less than 4m from the ground, the distance between the middle phase and the side phase of the high voltage fuse should not be less than 0.5m, and the Angle between the center line and the vertical line of the porcelain part of the high voltage fuse is 250-300.⑸ Hanging "No climbing, high pressure danger!""Warning sign.
2. Safety technical requirements for distribution transformers installed on the ground in the open air
The foundation of the floor transformer should be 0.2m higher than the ground, such as in the water area, the transformer should be located around the gutter road;The transformer is set around the brick wall, the height of the wall is not less than 1.8m, the door of the wall should be made of refractory materials, and the design of the low-voltage side of the transformer, the door should be opened outwards, and the door is locked.Bamboo and wood fencing should not be used.
The transformer adopts the platform (pier) type installation, the height of the platform (pier) should not be less than 2.5m. Outdoor installation of more than two transformers, the distance between the shell should not be less than 1.25m.
(4) Transformer housing should be properly.

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