| 1. Characteristics|
1) The core is a almost round section
2) Coils of high and low voltage are
directly winded in the core. Concentricity of the coils are good
and short-circuit resisting ability is also good.
3) Dye to special structure of core, and
due to annealing of first grade grain oriented cold silicon, its
no-load loss is reduced 30%, no-load current is reduced 70% and
noise is reduced 8 decibels.
4) No more use of oil-stocking cabinet.
Adopting corrugated plate oil tank, it can isolate the oil from air
and extend service life.
5) Small occupation of area due to use of
corrugated plate oil tank.
6) The core is processed mechanically, thus
work intensity is lessened and quality is more stable.
With use of specific winding equipment, the
silicon sheet is winded continuously to a closed whole core. Noise
is reduced obviously. After annealing of first grade grain oriented
cold silicon, its no-load loss is reduced 30% compared to products