30KV two winding off circuit tap changer transformer

35KV power transformer:
a.loss reduction
b.strong withstanding short circuit ability
c.enviromen proection

35KV two winding off circuit tap changer transformer:

Rated Capacity (kVA)	Voltage Combination			Connection Symbol	No-load loss(KW)	load loss(kw)	No-load Current(%)	short Circuit Impendence (%)	Center Distance (mm)
	H.V (kv)	Tapping Ranger of H.V	l.v (kv)
1000	35; 38.5	±5% or  ±2x2.5%		Yd11	1.26	11.54	0.7	6.5	820
1250					1.54	13.94	0.63		820
1600					1.93	16.67	0.6		820
2000					2.38	16.93	0.53		1070
2500			3.15;		2.8	19.67	0.53		1070
3150			6.3;		3.33	23.09	0.5	7	1070
4000			10.5		4	27.36	0.5		1070
5000					4.73	31.4	0.42		1070
6300					5.74	35.06	0.42	7.5	1070
8000			3.15;	YNd11	8.05	38.48	0.4		1475
10000			3.3;		9.52	45.32	0.4		1475
12500			6.3;		11.2	53.87	0.35	8	1475
16000			6.6;		13.3	65.84	0.35		1475
20000			10.5;		15.8	79.52	0.35		1475
25000			11		18.62	94.05	0.3		1475
31500					22.1	112.86	0.3		2040

 

The series of oil-immersed transformer such as S9(10), SF9(10), SZ9(10),  SFZ9(10) has a voltage of 35kV and a capacity of 50-50000kVA.

This series of products are a new generation products that can remarkably save materials and reduce losses. It is designed on the basis of digesting and absorbing the advanced technology at home and abroad, having hightech content and stronger competitive power. The product SZ1120000/35 new designed have passed the assessment of scientific and technical results by the scientific and technological bureau of Shandong Province.

The product possesses the following characteristics:

1) Adopting the electromagnetic calculation procedure of the computer, to optimize the plan of design; By comparing and analyzing the technical parameter and technical and economic index, to confirm the best plan of design.

2) The core adopt the new technology of threegrade and going forward one by one overlapping:

The core is high quality coldroll crystallite orientation silicon steel plate which import from Japan. Its section cut straight through is multistage round, miter jointing. Adopting the new technology of two pieces threegrade and going forward one by one overlapping. The new technologys practice cause noload loss average lower 810. It save energy remarkably.

3) The main and vertical insulation of the body of

Transformer is on the basic of electric field calculation and model testing, and integrate the successful experience and renew definite. It increase the ability to resist short circuit effectively.