20KV Grade S11 series of oil-immersed power transformer applies new type insulating structure and makes short-circuit resistance strong. The iron core is made up of Oriented silicon steel sheet, high –voltage winding group is made up of high-quality oxygen-free copper liner lines and it adopts multilayered drum type structure. All fasteners have been processed with special treatment to prevent them from loosening.

As high-tech product that promoted by the country, the product has many advantages such as high efficiency, low loss, its social benefits are remarkable that it will save much of electricity consumption and operating cost.

 

technical parameters

Rated  capacity (KVA)	Voltage  group(KV)		Vector  group	Dissipation (KW)		No-load Current (%)	Impedance  voltage (%)
	HV	LV		No-load	Load (120℃)
100	20 22 24	0.4	Dyn11  or Yyn0	0.20	1.65	1.6	5.5
125				0.24	1.98	1.5
160				0.29	2.42	1.4
200				0.33	2.86	1.3
250				0.40	3.35	1.2
315				0.48	4.01	1.1
400				0.57	4.73	1.0
500				0.68	5.66	1.0
630				0.81	6.82	0.9	6.0
800				0.98	8.25	0.8
1000				1.15	11.33	0.7
1250				1.35	13.20	0.7
1600				1.63	15.95	0.6
2000				1.95	19.14	0.6
2500				2.34	22.22	0.5