Company IntroductionShenda ( 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.). 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). shendaelectric.en.made-in-china.comProduct series Cast
Resin Dry-type
Transformer1)Certificates;CTQC,ISO9001.ISO144001CE 2)Apply for
IEC .GB.ANSI 3)UP to 50KV .20000KVA 4)Low
losses Application Of Products Our SC(B)
series epoxy resin cast dry transformer is cast under vacuum with
thin insulating bands automatically . The core is made of
high-permeable grain-orientated silicon sheet and cast with
imported epoxy resin. Thanks to advanced technology, quality raw
materials , scientific management, and perfect inspection means
,our products have the following features:
The coil is reinforced with glass fiber
and cast under vacuum with filler epoxy resin. It has good
mechanical properties, is free of crack and inner bubble and has
low local discharge, high reliability, and long service life.
The high-and
low-voltage systems are cast under vacuum, thus the coil will
not absorb moisture; the clamps of core are subjected to
corrosion-resistant treatment and it may run under high temperature
or other serious environments.
Flame retardancy , explosion-proof and no
environmental contamination. The insulating materials in the coil
such as glass fiber are self-extinguishing and they will not cause
fire by the arc resulted from short-circuit . The resin will not
generate toxic or harmful gas under high temperature.
Gas duct is embedded inside it to
enhance the radiation power and over-load capacity.
Low loss and low noise. The core
is lapped with 45 full-miter and the step-type lamination
effectively improves distribution of magnetic flux at core corners,
and greatly reduces the no-load loss and the nose level.
It highly withstands
short-circuit and lightning impact.
Small in volume, light in weight, safe in
running and free of maintenance.
As per users' requirements the transformer may be
provided with casing and blower fanCertifications100MVA/220kv power
transformer short circuit test report -issued by CESI
Italy&CTQC China 120MVA/33KV oil EAF transformer 50MVA/69KV oil
power transformer 10MVA/33kv dry-type transformer Type test report
-issued by KEMA Netherlands 63MVA/110KV Power transformer short
circuit test report -issued by CTQC China 12.5MVA/22KV Rectifier
transformer routine test -issued by V-Check korea ISO
9001&ISO14001&OHSAS 18001 CE-POWER TRANSFORMER&FURNACE
TRANSFORMER&DRY-TYPE TRANSFORMER&REACTOR Test labTesting
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). Client inspectionPackaging and transportationFactory
documentation 1Technical parameters2Outline drawing3Lifting
diagram4Nameplate drawing5Control box drawing6Transportation
diagram7Transformer install manual8Transformer operation /
Maintenance instruction9Principles parts / components ex-work
certification and operation instruction10Recommended spare part for
2-5 years operation11Tes
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