20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Factory-direct supply and competitive price
Full range of oil-immersed & dry-type transformers
Reliable performance, certified by CE and ISO
Professional export experience to 40+ countries

Application

The 20kV Three-Phase Oil-Immersed Distribution Transformer is a robust and reliable solution for medium-voltage power distribution. Its energy-efficient design, durability, and adaptability make it suitable for a wide range of applications, from industrial plants to urban power grids. By choosing the right specifications and conducting regular maintenance, these transformers can deliver optimal performance and long service life.

Specifications

Core: Made of high-grade silicon steel sheets, designed to minimize core losses and ensure efficient performance.
Windings: Primary and secondary windings are typically made of copper or aluminum. Copper windings offer better conductivity and durability, while aluminum is lighter and more cost-effective.
Tank: The transformer tank is designed to house the core, windings, and oil. It is made from durable steel with a corrugated or radiator structure to improve heat dissipation.
Bushings: Porcelain or composite bushings provide safe and effective connections for high-voltage and low-voltage terminals.

Advantages

High Reliability: Designed for long-term operation with minimal maintenance.
Energy Savings: Low-loss design helps reduce energy wastage, contributing to operational cost savings.
Robust Insulation: Oil immersion provides excellent dielectric strength, ensuring safe operation under varying conditions.
Cost-Effective Cooling: Natural air and oil cooling eliminate the need for additional cooling equipment, reducing maintenance costs.
Durability: Suitable for harsh environments, including high-temperature and high-humidity areas.

S11 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

S13 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

SH15 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer With Amorphous Alloy Core

Parameter

S11 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Type	Rated Power(kVA	Rated Voltage(kV)	Vector Group	Impedance Voltage(%)	Total Weight(t)	Reference Dimension(mm	No Load Loss (W)	Load Loss (W)
S11-30/20	30	H.V. 20 ±2×2.5% ±5%L.V. 0.4	Dyn11 Yyn0	4	0.9	12009501400	100	690/660
S11-50/20	50				1.0	12009501500	130	1010/960
S11-63/20	63				1.1	12009501500	150	1200/1150
S11-80/20	80				1.2	12009501600	180	1440/1370
S11-100/20	100				1.4	130010001750	200	1730/1650
S11-125/20	125				1.6	140011001800	240	2080/1980
S11-160/20	160				1.7	145012001850	290	2540/2420
S11-200/20	200				1.8	150013001900	340	3000/2860
S11-250/20	250				2.0	160015002000	400	3520/3350
S11-315/20	315				2.2	180016002100	480	4210/4010
S11-400/20	400				2.4	190017002200	570	4970/4730
S11-500/20	500				2.7	200018002300	680	5940/5660
S11-630/20	630			4.5	3.0	215020002350	810	6820
S11-800/20	800				3.4	225020502400	980	8250
S11-1000/20	1000				4.0	240022002450	1150	11330
S11-1250/20	1250				4.5	250023002500	1380	13200
S11-1600/20	1600				5.0	260024002600	1660	15950
S11-2000/20	2000				5.6	270024502700	1950	19140
S11-2500/20	2500				7.1	285026502800	2340	22220

S13 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Type	Rated Power(kVA	Rated Voltage(kV)	Vector Group	Impedance Voltage(%)	Total Weight(t)	Reference Dimension(mm)	No Load Loss (W)	Load Loss (W)
S13-30/20	30	H.V. 20 ±2×2.5% ±5%L.V. 0.4	Dyn11 Yyn0	4	0.9	12009501400	80	690/660
S13-50/20	50				1.0	12009501500	100	1010/960
S13-63/20	63				1.1	12009501500	110	1200/1150
S13-80/20	80				1.2	12009501600	130	1440/1370
S13-100/20	100				1.4	130010001750	150	1730/1650
S13-125/20	125				1.6	140011001800	170	2080/1980
S13-160/20	160				1.7	145012001850	200	2540/2420
S13-200/20	200				1.8	150013001900	240	3000/2860
S13-250/20	250				2.0	160015002000	290	3520/3350
S13-315/20	315				2.2	180016002100	340	4210/4010
S13-400/20	400				2.4	190017002200	410	4970/4730
S13-500/20	500				2.7	200018002300	480	5940/5660
S13-630/20	630			4.5	3.0	215020002350	570	6820
S13-800/20	800				3.4	225020502400	700	8250
S13-1000/20	1000				4.0	240022002450	830	11330
S13-1250/20	1250				4.5	250023002500	970	13200
S13-1600/20	1600				5.0	260024002600	1170	15950
S13-2000/20	2000				5.6	270024502700	1390	19140
S13-2500/20	2500				7.1	285026502800	1650	22220

SH15 20kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer With Amorphous Alloy Core

Type	Rated Power(kVA	Rated Voltage(kV)	Vector Group	mpedance Voltage(%)	Total Weight(t)	Reference Dimension(mm	No Load Loss (W)	Load Loss (W)
SH15-30/20	30	H.V. 20 ±2×2.5% ±5%L.V 0.4	Dyn11 Yyn0	5.5	0.7	11001100650	40	690/660
SH15-50/20	50				0.8	12001100650	55	1010/960
SH15-63/20	63				0.95	13001250650	65	1200/1150
SH15-80/20	80				1	14001300700	75	1440/1370
SH15-100/20	100				1.25	14501300850	90	1730/1650
SH15-125/20	125				1.3	14501300950	100	2080/1980
SH15-160/20	160				1.4	145013001000	120	2540/2420
SH15-200/20	200				1.5	150013001100	145	3000/2860
SH15-250/20	250				1.7	160013501150	165	3520/3350
SH15-315/20	315				1.9	170013501200	200	4210/4010
SH15-400/20	400				2.2	180014001200	240	4970/4730
SH15-500/20	500				2.5	190015001200	290	5940/5660
SH15-630/20	630			6	3	200016001300	370	6820
SH15-800/20	800				3.5	210017001400	450	8250
SH15-1000/20	1000				4	220018001500	530	11330
SH15-1250/20	1250				5	230019001600	620	13200
SH15-1600/20	1600				6	260020001700	750	15950
SH15-2000/20	2000				7.5	290022001900	900	19140
SH15-2500/20	2500				9.5	300025002000	1080	22220

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Factory-direct supply and competitive price
Full range of oil-immersed & dry-type transformers
Reliable performance, certified by CE and ISO
Professional export experience to 40+ countries

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