S20-1600kVA Oil immersed Transformer

application Details

Electrical Steel for Transformer

An oil-immersed transformer, also called Oil filled transformer, is a kind of voltage transformation device utilizing the oil cooling method to reduce the transformer temperature. Unlike the dry type transformer, the body of the Oil-immersed transformer is installed in the welded steel oil tank filled with insulation oil. When an Oil-immersed transformer in operation, the heat of the coil and iron core firstly is transformed into the insulation oil and then to the cooling medium. And according to the capacity sizes, it can be divided into an immersed natural cooling transformer and an immersed forced air cooling transformer.

Advantages of a three-phase oil-immersed transformer S20-1600KVA

-The core of silicon steel is made of 0.18 ~ 0.3mm orientation silicon steel sheet stacked by punching and shearing, which has good stability.

-The coil is made of pure copper. The acetal enamelled wire is used for high voltage and oxygen-free copper conductor or copper foil for low voltage to improve the short-circuit resistance.

-The Dyn11 connection symbol is used to avoid the influence of higher harmonics. It provides high resistance against uncompensated load and improves the quality of power supply.

-Vacuum oiling is adopted by the transformer to remove bubbles in the core and ensure stable insulating property.

technical parameter

Silicon Steel Transformer

Rated capacity(kVA)	Voltage	Maximum no-load losses (W)	Maximum on-load losses(W)	Short circuit impedance Uk (% )
30		70	505/480	4
50		90	730/695	4
63		100	870/830	4
80		115	1050/1000	4
100		135	1265/1200	4
125		150	1510/1440	4
160		180	1850/1760	4
200	6.0	215	2185/2080	4
250	6.3	260	2560/2440	4
315	10	305	3065/2920	4
400	10.5	370	3615/3440	4
500	11	430	4330/4120	4
630		510	4960	4.5
800		630	6000	4.5
1000		745	8240	4.5
1250		870	9600	4.5
1600		1050	11600	4.5
2000		1225	14640	4.5
2500		1440	14840	5