Worry-Free After-Sales S20 Series 6/6.3/10.5/11kv 2500kVA High Quality Equipment Oil-Immersed Transformer

• Customization: Available
• Application: Power, Instrument, Rectifier
• Phase: Three
• Model NO.: S20
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: EE
• Brand: Vouchivan
• Series No.: S11, S13, S20, S22 Series
• Voltage: 10kv, 20kv and 35kv
• Winding Material: Copper/Aluminum
• Core Material: Silicon Steel Sheet
• Rated Capacity: 30kVA-2500kVA
• Open Circuit Losses: 70W-1440W
• Tapping Range: ±5 or ± 2*2.5%
• Connection: Dyn11
• Frequecy: 50Hz/60Hz
• Impedance: 4%-6%
• Voltage Regulator: 5 Steps
• Efficiency: 98%
• Outline Shape: Vertical Transformer
• Moisture-Proof Method: Sealed
• Operating Temperature: -25ºC to 40ºC
• Transport Package: Wooden Box
• Specification: S20-M-2500KVA
• Trademark: Vouchivan
• Origin: Jiangsu Xuzhou
• HS Code: 8504340000
• Production Capacity: 5000pieces/Year

Product Description

S20 series oil immersed power transformer
S20 series 10KV oil-immersed double-winding unexcited voltage regulation distribution transformer energy efficiency grade 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	W	%	%
30	6 6.3 10 10.5 11	±5% or ±2×2.5%	0.4	Dyn11	70	505	4	1.5
50					90	730		1.3
63					100	870		1.2
80					115	1050		1.2
100					135	1265		1.1
125					150	1510		1.1
160					180	1850		1.0
200					215	2185		1.0
250					260	2560		0.9
315					305	3065		0.9
400					370	3615		0.8
500					430	4330		0.8
630					510	4960	4.5	0.60
800					630	6000		0.60
1000					745	8240		0.60
1250					870	9600		0.50
1600					1050	11600		0.50
2000					1225	14640	5	0.4
2500					1440	14840		0.4

product feature

1, low loss, significant energy saving.
2, the core adopts high-quality cold-rolled silicon steel sheet, domestic excellent transverse shear line, shear burr <0.02, full oblique joint, no punching, no stacking iron wheel process; The double H adhesive makes the three columns of the core become a tight, flat and compact whole, effectively reducing the no-load loss, no-load current and noise of the transformer.
3, the transformer coil adopts high purity oxygen-free copper, which effectively reduces the copper consumption, the pad and the stay are rounded, the electric field is uniform, and the reliability is increased. The inner winding support is strengthened to improve its stability and prevent instability and deformation. For products with a capacity of more than 12500kVA, the internal and external coils are assembled with a unified integral plate and pressure plate at the same time, ensuring the consistency of the height and size of the coils along the axis, and improving the ability of the transformer to resist sudden short circuit.

4, the plate clamp and the side beam form a solid frame structure, the body and the six sides of the tank steel positioning, so that the body can withstand the impact test under various transportation conditions without displacement. If the impact is less than the specified value during the transportation of the product, the site can be directly tested and put into operation without the core inspection, which reduces a lot of work on the product site.
5, the volume of the tank adopts the whole steel plate, which is folded into a corrugated structure by a large press, which reduces the weld, increases the mechanical strength, expands the heat dissipation area, and improves the heat dissipation effect. At the same time, the corrugated box wall avoids the plane reflection of the sound wave to reduce the noise. The transformer is beautiful and simple.
6, the capsule type oil storage tank effectively slows down the aging degree of transformer oil; The pointer type oil level meter can avoid the occurrence of false oil level phenomenon and completely solve the problem of light aging of transformer oil; Gas relay with gas collecting device for easy maintenance and operation; The chip radiator and large diameter low noise fan are used to improve the heat dissipation effect and reduce the noise.
7, for the original traditional sealing structure, especially where oil leakage is easy to occur, start from the material procurement control to ensure that the steel does not rust, bump, scratch, hammer, special processing of the oil tank sealing part, and the overall painting of the box, remove the sharp corner burrs and welding slag generated in the processing of the box, and strengthen the adhesion of the paint.

Difference between S20 transformer and S13 transformer
The difference between S20 transformer and S13 transformer is mainly reflected in the loss, S20 transformer than S13 transformer no-load loss and load loss are reduced by 10%, that is to say, S20-M series transformers are more in line with the national concept of energy saving and emission reduction, but also the future focus of the oil-immersed transformer model.

S20 transformer price
The S20 oil-immersed transformer meets the national secondary energy efficiency standards, so the S20 transformer price is higher than the S13 transformer, but the S20 transformer power consumption is about 10% lower than the S13 transformer, and the S20 transformer price is about 15% higher than the S13 transformer price.

At present, there are fewer manufacturers with S20 oil-immersed transformer production qualifications. If you need to customize S20 transformer, you may wish to visit our factory and customize S20 transformer on site.

According to the requirements of the national secondary energy efficiency standard, the winding scheme and coil material of the transformer are redesigned, and the temperature rise and loss of the winding of the S20 transformer are optimized.