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35kV level, S9, S10, S11 series 3phase oil-immersed transformer with no-load tap changer

Product description

　　Our S9, S10, S11 series 20KV, 35KV 3-phase oil-immersed transformer is conform to the standard of IEC and GB1094 "Power Transformer" and GB/T6451-2008 "Technical Parameters and Requirements of Three-phase Oil-immersed Power Transformer". The iron core is made of quality cold-rolled silicon steel sheet, and in full-miter non-puncture structure. The coil is made of quality oxygen-free copper, featuring good outlook and safe running. The products are widely used in power transmission and distribution of industrial and agricultural power networks.

Feature

1. High reliability, advanced level of performances,reasonable economical indicators.

2. The core joints are of stepped shape with 3 steps,and the surface of the core is coated with cured paint to lower losses and noise.

3. The winding has novel structure and its oil passage is reasonable designed. Its newly designed insulation structure helps enhance its mechanical strength and the short circuit withstanding ability.

4. The oil tank type is various and good-looking.

Main technical data for 35kV level, S9, S10, S11 series 3phase oil-immersed transformer with no-load tap changer

Rated power (KVA)	High Voltage (KV)	H.V.Tap (KVA)	Low Voltage (KV)	Connection symbol	Short- Circuit Impedance (%)	No-Load Loss (W)			On-Load Loss (W)			No-Load Current (%)
Rated power (KVA)	High Voltage (KV)	H.V.Tap (KVA)	Low Voltage (KV)	Connection symbol	Short- Circuit Impedance (%)	The 9 type of loss	The 10 type of loss	The 11 type of loss	The 9 type of loss	The 10 type of loss	The 11 type of loss	No-Load Current (%)
800	35 38.5	±5% ±2×2.5%	6.3 6.6 10 10.5	Yd11	6.5	1250	1110	980	9900	9350	9350	1.05
1000						1490	1320	1160	12200	11500	11500	1
1250						1760	1570	1380	14650	13900	13900	0.9
1600						2130	1900	1660	17650	16600	16600	0.85
2000						2610	2320	2030	19350	18300	18300	0.75
2500						3150	2800	2450	20700	19600	19600	0.75
3150					7	3870	3440	3010	24300	23000	23000	0.7
4000						4640	4120	3610	28800	27200	27200	0.7
5000						5490	4880	4270	33000	31200	31200	0.6
6300					7.5	6570	5840	5110	36900	34900	34900	0.6
8000				YNd11		9000	8000	7000	40500	38300	38300	0.55
10000						10620	9440	8260	47700	45100	45100	0.55
12500					8	12600	11200	10800	56700	53600	53600	0.5
16000						15300	13600	11900	69300	65500	65500	0.5
20000						18090	16100	14100	83700	79100	79100	0.5
25000						21510	19120	16730	99000	93500	93500	0.4
31500						25650	22800	20000	118800	112200	112200	0.4

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