SC(B)10-30~2500/10type cast resin dry-type power transformer main Technical parameters
ron core
Made up of high quality cold rolled silicon steel sheet that is for electric engineering
Low voltage winding
Made up of a whole copper foil coil
High voltage winding
Made up of sectional type vacuum casting double glass-fiber covered coils
Low voltage terminal
High voltage terminal
Variable wiring mode, which is convenient for installation
Resilient pad
Avoid mechanical resonance, and reduce noise
Clamp and trolley
The wheel of trolley can rotates to 90ยฐ
It is convenient for vertical and horizontal movement.
Packing type resin insulation
With advantages of damp proof, anti-damp and hot, flame-retardant, and self
extinguish.
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The epoxy resin cast dry type transformer of Special Transformer Company of Great
is made with abroad advanced technology, it includes the following characteristics:
Low local discharge
As the coil is cast in vacuum state, the air bubble produced in coil can be
prevented effciently, the local discharging value fully accords with relative national
standard.
Strong capability of lightning impact
The lightning impact voltage that affects the insulation of transformer windings
along the initial voltage distribution of windings, the foil type windings initial
voltage distribution approaches to linear one, therefore, the transformer
manufactured by us has good ability to resist the lightning impact.
Strong ability to resist short-circuit
The width of copper foil of LV windings that is the reactance height, LV current is
supplied according to be the requirement for ampere turns balance among
windings, HV/LV windings axial force caused by short circuit tends to zero.
Good performance of anti-drying crack
The transformer manufactured by us is made of packing type resin and designed
into the structure of full copper oil, the coefficient of insulation material is the
similar to the that of thermal expansion of copper conductor, so the coils can be
prevented cracking efficiently. The transformer has been done kinds of anti-crack
tests, such as cold/hot alternation test, thermal impact test, rapid aging test, etc,
and the test result demonstrates that our technology can meet the requirements
of service occasions like low temperature, high temperature and large range of
variable temperature, as well as anti-crack after the transformer runs for a long
time.
Strong over-load capability
If the transformers of same capacity whose load consumption is equal, the
sectional area of copper foil will be increased correspondingly, and the volume
will be extended with the sectional area that requires more packing resin, therefore, both the thermal capacitive property of
windings and short-time over load capability of transformer are quite strong.
Good flame retardancy
The transformer has visible features such as free-maintenance, moisture-proof, anti-damp and hot, flame-retardant, self
extinguishing, etc., besides, its stuffing type resin casting technology is good for environmental protection. When bum by the
electric are at high temperature, it will not product any noxious gas. The superior flame retardancy is proved in the burning test.
The product has good ability to adapt to environment, on the basis of European HD464 standard, it reaches the environment class
E2, weather-resistant class FC2, flame-retardant class F1, it can be widely used in fields or locations where service conditions are
rather atrocious such as commercial area, under ground, power plant, steamship, offshore drilling platform, etc.
Low noise
Because of special structure and design, the noise produced by transformer is reduced greatly, compared with the noise value
stipulated at national Specialized Standard, its whole noise level is lower than it for more than over 10-13dB(A).
Low consumption
Compared with “8” character type products, SCB9 series has better economic benefit, its total consumption is reduced for 10~15%
in average.
