S11 Series (35 kV) Three-Phase Oil-Immersed Power Transformer with Non‑Excited Voltage Regulation

This product complies with the national standards GB 1094 “Power Transformers” and GB 6541 “Technical Parameters and Requirements for Three‑Phase Oil‑Immersed Power Transformers.” The 35 kV oil‑immersed distribution transformer features a novel design, low losses, compact dimensions, and strong short‑circuit withstand capability. It is primarily used in urban and rural industrial and agricultural power grids and plays an important role in energy conservation and environmental protection.

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Oil-Immersed Power Transformer Series

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Product Description

　　Product Overview:

　　　　This product complies with the national standards GB 1094 “Power Transformers” and GB 6541 “Technical Parameters and Requirements for Three‑Phase Oil‑Immersed Power Transformers.” The 35 kV oil‑immersed distribution transformer features a novel design, low losses, compact dimensions, and strong short‑circuit withstand capability. It is primarily used in urban and rural industrial and agricultural power grids and plays a significant role in energy conservation and environmental protection.

　　Ordering Instructions:
　　When placing your order, please provide the following parameters:
　　1. Product Model
　　2. Rated Capacity
　　3. Voltage Combination
　　4. Scope of Adjustment
　　5. Frequency
　　6. Connection Group Designation
　　7. Short-circuit impedance
　　8. For products with special requirements, specify the technical specifications.

　　Technical Data Sheet for the S11 Series (35 kV) Three-Phase Oil-Immersed Power Transformer with Non‑Laminated Voltage Regulation

Rated Capacity ( k VA)	Rated voltage		Connection Group	No-load current ( %)	No-load loss ( W)	Load loss ( W)	Impedance voltage ( %)
Rated Capacity ( k VA)	High pressure ( kV )	Low pressure ( kV )	Connection Group	No-load current ( %)	No-load loss ( W)	Load loss ( W)	Impedance voltage ( %)
50	35 ±2×2.5% or 38.5 ±2×2.5%	0.4	Dyn11	2.0	170	1210	6.5
100				1.8	240	2014
125				1.7	270	2375
160				1.6	290	2820
200				1.5	340	3325
250				1.4	400	3950
315				1.4	480	4760
400				1.3	580	5750
500				1.2	680	6915
630				1.1	830	7865
800				1.0	980	9405
1000				1.0	1155	11540
1250				0.9	1405	13935
1600				0.8	1695	16670

Technical Data Sheet for the S11 Series (35 kV) Three-Phase Oil-Immersed Power Transformer with Non‑Laminated Voltage Regulation

Rated Capacity ( k VA)	Rated voltage		Connection Group	No-load current ( %)	No-load loss ( W)	Load loss ( W)	Impedance voltage ( %)
Rated Capacity ( k VA)	High pressure ( kV )	Low pressure ( kV )	Connection Group	No-load current ( %)	No-load loss ( W)	Load loss ( W)	Impedance voltage ( %)
630	35 ±2×2.5% or 38.5 ±2×2.5%	3.15 3.3 6 6.3 10 10.5 11	Y d11 YN d11	1.1	830	7865	6.5
800				1.0	980	9405
1000				1.0	1155	11540
1250				0.9	1405	13935
1600				0.8	1695	16670
2000				0.7	2175	18380
2500				0.6	2560	19665
3150				0.5	3040	23085	7
4000				0.5	3615	27360
5000				0.5	4320	31370
6300				0.4	5245	35055	7.5
8000				0.4	7200	38475
10000				0.4	8700	45315
12500				0.4	10080	53865	8
16000				0.4	12160	65835
20000				0.4	14400	79515
25000				0.3	17020	94050
31500				0.3	20460	112860