10kV Class S11 (13) Energy-Efficient Oil-Immersed Distribution Transformer

The S13 series features energy-efficient, fully sealed, oil-immersed transformers. The core is crafted from high-quality, highly permeable cold-rolled grain-oriented silicon steel sheets with a 45° full-shear lamination design. Compared to S11 transformers, these models deliver over 30% reduction in no-load losses, more than a 50% decrease in no-load magnetizing current, and noise levels that are reduced by over 10 dB. With superior performance, minimal operating noise, and a compact, space-saving design, this new-generation product is both environmentally friendly and energy-efficient—perfect for upgrading power grids in urban and rural areas, as well as industrial and mining enterprises. It’s especially ideal for use in compact, pre-assembled, container-type substations.

Category:

Oil-immersed transformer

Phone:

+86-377-62178288

E-mail:

hnwjdianqi@163.com

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Description

Product Introduction

The S13 series features energy-efficient, fully sealed, oil-immersed transformers. The core is crafted from high-quality, high-permeability cold-rolled grain-oriented silicon steel sheets with a 45° full-shear lap joint design. Compared to S11 transformers, these models deliver over 30% reduction in no-load losses, more than 50% lower no-load magnetizing current, and noise levels reduced by 10 dB or more. With superior performance, minimal operating noise, and a compact, space-saving design, this new-generation product is both environmentally friendly and highly energy-efficient—making it ideal for grid upgrades in urban and rural areas, industrial and mining enterprises, and especially well-suited for use in compact, pre-assembled substation transformer systems.

Implementation Standards

IEC60076-1:2011 Power Transformers

G81094,1-2013 Power Transformer

GB6451-2015 Oil-Immersed Power Transformers: Technical Parameters and Requirements

JB/T10088-2016 Sound Level of 6kV to 500kV Power Transformers

Model and Meaning

Structural Features

Iron core: Entirely made from high-quality, highly permeable grain-oriented cold-rolled silicon steel sheets, featuring a fully skewed, pore-free binding structure. The iron core has a multi-stage stepped design.
Three-seam, five-seam, or seven-seam design—with low air leakage and minimal noise.

Coil: Crafted from high-quality 00 acetal-insulated round copper wire, using either oxygen-free copper rod-drawn flat copper wire or copper foil windings. Available in various configurations—such as cylindrical, continuous, innovative spiral, and split designs—the coils offer robust electrical strength, mechanical durability, and superior heat dissipation capabilities.

Fuel tank: Constructed from high-quality steel plates welded together, it comes in various shapes such as oval and rectangular designs. The cooling elements are either plate-type radiators or corrugated tanks. Before leaving the factory, the fuel tank undergoes rigorous sealing tests. Both the inner and outer surfaces are thoroughly cleaned via pickling and phosphating processes, followed by a three-coat, one-finish paint application—ensuring exceptional corrosion resistance while maintaining a sleek, aesthetically pleasing appearance.

Technical specifications and external dimensions

Technical Parameters and External Dimensions of the 10kV-Class S11 Series Energy-Saving Oil-Immersed Distribution Transformers

Rated Capacity (kVA)	Voltage Combination (kV)			Connection Group Label	Loss (W)		No-load current	Short-circuit impedance	External dimensions (mm)	Installation dimensions (mm)
Rated Capacity (kVA)	High pressure (kV	Tap range	Low pressure (KV)	Connection Group Label	No-load (W)	Load (M)	No-load current	Short-circuit impedance	External dimensions (mm)	Installation dimensions (mm)
30	6 6.3 6.6 10 10.5 11	±5% ±2 × 2.5%	0.4	Dyn11	100	630	2.3	4	740×500×930
50					130	910	2.0		800×500×1040	400×400
80					180	1310	1.9		840×620×1100	400×400
100					200	1580	1.8		1060×640×1110	550×550
160					280	2310	1.6		1160×720×1200
200					340	2730	1.5		1200×730×1220
250					400	3200	1.4		1260×810×1260
315				Yyn0	480	3830	1.4		1260×780×1330
400					570	4520	1.3		1360×860×1400	660×660
500					680	5410	1.2		1400×920×1400
630					810	6200	1.1		1560×970×1500
800					980	7500	1.0		1600×1010×1520
1000					1150	10300	1.0	4.5	1620×1060×1560	820×820
1250					1360	12000	0.9	1740x1120x1650
1600				1640145000.8				1800×1180×1750

Technical Specifications and External Dimensions of the 10kV-Class S13 Series Energy-Efficient Oil-Immersed Distribution Transformers

Rated Capacity (kVA)	Voltage Group High pressure (kV)	Combination and Division Jue Pu	Receive range Low pressure (kV)	Connection Group Label	No-load Current (%)	No-load loss (W)		Short circuit Impedance (S)	Load Loss (W)		Sound level (dB)	Length × Width × Height (mm)	Weight (kg)	Track gauge Horizontal × Urban Direction (mm)
						Level 1	Level 2		Level 1	Level 2
30	6 6.3 6.6 10 10.5 11	5% soldiers ±2 X 25%	0.4	Yyno Dyn11	1.4 80 80			550/480 630/600 50 730×420×900 280
50					1.2	100	100		730/695	910/870	50	730×445×1020	390
63					0.97 110 110				870/8301090/104050 790×455×1040 440					400×400
80					0.97	130	130		1050/1000	1310/125052		820×490×1070	495
100					0.97 150 150				1265/12001580/150052 870×520×1110 600					550×550
125					0.84	170	170		1510/1440	1890/180054		935×560×1135	690
160					0.84 200 200			4	1850/17602310/220054 970×580×1200 780
200					0.74	240	240		2185/2080	2730/260056		1040×630×1280	908
250					0.64 290 290				2560/24403200/305056 1135×710×1230 1043
315					0.64	340	340		3065/2920	3830/365058		1175×760×1280	1190
400					0.54 410 410 3615/34404520/430058 1255×830×1310 1430									660×660
500					0.54	480	480	4330/4120		5410/5150	60	1320×860×1365	1648
630					0.54 570 570			4.5	4960 6200 60 1450×910×1400 2027
800					0.48	700	700		6000	7500	62	1520×990×1460	2316	820×820
1000					0.42 830 830				8240 10300 62 1740×1220×1500 2600
1250					0.36	970	970		9600	12000	65	1820×1260×1540	2890
1600					0.36 1170 1170			11600 14500 69 1890×1320×1620 3380

Note: For transformers with a rated capacity of 500 kVA or less, the load loss values listed above the slash in the table apply to the Dyn11 connection group, while the values below the slash are applicable to the Yyn0 connection.
Grouping, the above external dimension data are for reference only; our company reserves the right to modify the data.

Keywords:

10kV Class S11 (13) Energy-Efficient Oil-Immersed Distribution Transformer

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