IEEE IEC 20 Years Professional 25000kVA 35kv Power Distribution Transformer

• Customization: Available
• Application: Power, Power Transmission
• Phase: Three
• Model NO.: SZ11-25000/35
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, ISO9001&14001 OHSAS18001 CSA CE V-Check IEC IEEE
• Usage: Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Kou Type
• Brand: Shenda
• Service Condition: Indoor/Outdoor
• Tap Changer: Nltc/Oltc
• Cooling Type: Ofwf/Onan
• Core Structure: Toroidal
• High Voltage Range: 35-38.5kv
• Iron Core: Silicon Sheet
• Loss: Low Loss
• Transport Package: Sea Worthy Packing
• Specification: CE, ISO, IEC, GB, ANSI
• Trademark: EACHER
• Origin: Jiangshan City, Zhejiang Province, China
• Production Capacity: 6000 Sets Per Year

Product Description

Basic info

Manufacture bases
Shenda ( In full: Shenda Electric Group Co.,Ltd.)  is one of the leading manufacturers in the power transmission & distribution industry. Founded in 2000 and currently employs about 1,100 employees worldwide. Shenda operates four factories(three in China and one in the United States of America - R. E. Uptegraff Manufacturing Company, LLC of Pennsylvania, U.S.A.). One base 330kv and dry type base under construction)
Shenda also owns other ten subsidiaries throughout China. The annual gross sales is USD$250 million in 2015.
Shenda's annual total production capacity is about 18,000,000 KVA, Our main products include oil immersed power transformer(up to 250MVA/ 330kV) , dry type transformer(up to 20MVA/35kV), combined transformer substation, amorphous alloy transformer, rectifier transformer (100MVA/220kV )and especially furnace transformer(180MVA/220kV). Our products' performance measures up to the standards established by International Electric Committee (IEC).

Certifications



Test lab
Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test.

A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers
- Measurement of winding resistance .
- Measurement of voltage ratio and check of phase displacement.
- Measurement of short circuit impedance and load losses.
-Measurement of no-load losses and current .
-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) .

B - Type tests :
The following tests shall be carried out
- Temperature rise test
- Lightning impulse test

C - Special tests :
- Determination of noise level according to IEC 60551 .
- Oil leakage test
- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) .
- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted).
Clients



Packaging and transportation