S11 Series 20kv Oil-Immersed Distribution Transformer 250kVA Rated Capacity

• Customization: Available
• Model No.: S11 20kv
• Nominal Voltage: 20kv
• Model NO.: S11 20KV 250KVA
• Voltage: 10kv, 20kv and 35kv
• Product Certification: ISO9001,ISO14001,ISO45001
• Winding Type: Two-Winding
• Winding Material: Cooper/Aluminum
• Phase: 3 Phases
• Tapping Range: ±5 or ± 2.5%
• Place of Dispatch: Xuzhou
• Rated Capacity: 10kVA-2500kVA
• Core Material: Silicon Steel Sheet
• Capacity: 30kVA-2500kVA
• Connection: Type Yyn0 or Dyn11
• Frequecy: 50Hz/60Hz
• Transport Package: Foam, Wooden Box, Cardboard, etc
• Specification: Iron cores, windings, insulated parts and leads
• Trademark: Vouchivan
• Origin: Jiangsu, China
• HS Code: 8504333000

Product Description

S11 series 20KV oil-immersed distribution transformer
S11 series 20KV low loss fully sealed power transformer technical parameters

Rated Capacity	Voltage combination			Join group label	open circuit losses	Load loss W		short circuit impedance	no-load current
	high pressure(KV)	High pressure tap range(%)	low tension(KV)		W	Yy	Dy	%	%
30	20 22 24	±5% or ±2×2.5%	0.4	Yyn0 or Dyn11	100	660	690	5.5	2.1
50					130	960	1010		2
63					150	1150	1200		1.9
80					180	1370	1440		1.8
100					200	1650	1730		1.6
125					240	1980	2080		1.5
160					290	2420	2540		1.4
200					340	2860	3000		1.3
250					400	3350	3520		1.2
315					480	4010	4210		1.1
400					570	4730	4970		1
500					680	5660	5940		1
630					810	6820	6820	6.0	0.9
800					980	8250	8250		0.8
1000					1150	11330	11330		0.7
1250					1380	13200	13200		0.7
1600					1660	15950	15950		0.6
2000					1950	19140	19140		0.6
2500					2340	22220	22220		0.5

Running conditions
Altitude not exceeding 1000m Maximum indoor or outdoor.
Ambient temperature +40ºC.
Maximum daily average temperature +30ºC.
Maximum annual average temperature +20ºC.
Maximum low temperature -25ºC.
Transformers operating under special conditions can be provided according to customer requirements.

Executive standard

1. GB1094.1~2-2013     Power transformer
2. GB/T6451-2015    Technical parameters and requirements of                                                     three-phase oil-immersed power transformer
3. GB1094.3-2017        Power transformer

Product presentation
The S11-20KV series three-phase oil-immersed non-excitation voltage regulation distribution transformer produced by the company has the characteristics of high efficiency and low loss, which can save a lot of power consumption and operating costs, and has significant social benefits. It is a high-tech product promoted by the state.

1. The transformer body adopts a new type of insulation structure, which improves the short-circuit resistance;
2. The transformer core is made of high quality cold rolled silicon steel sheet;
3. The high and low voltage windings of the transformer are made of high quality oxygen-free copper wire, and multi-layer cylinder structure;
4. All fasteners of the transformer are treated with special anti-loose treatment;
5. The transformer oil tank is a corrugated structure, and the cover and edge of the box are completely welded or bolted, which fundamentally prolongs the service life of the transformer oil and insulating materials.

The above standards are subject to the latest released information; Equipment requirements should be based on the corresponding latest national professional standards.