S13, S13-M Oil immersed transformer

The S13 series coil core distribution transformer has low loss, and the load loss is the same as the new S11 stack core distribution transformer. Same as GB/T6415-2008.

1.Its no-load loss has been reduced by an average of 20%. The main material consumption is less and the weight is light. The no-load current is small, and the magnetic flux is completely along the lattice arrangement direction of the cold-rolled silicon steel sheet. Low noise. compared withIB/T10088-2004 standard value, about 3-5dB lower. Strong short-circuit resistance and high reliability. The clamp mainly plays the role of tightening the winding, and the iron yoke insulation and trapezoidal pad are integrated into one, so that the body is under uniform pressure.

2.Iron core: 30Q120 cold rolled silicon steel sheet. The inner and outer frame of the three-phase column is coil structure, and the core column is a multi-level stepped cylindrical cross-section.The core is annealed by true air after winding. Pull screw body of upper and lower clamp. The iron core surface is coated with epoxy resin, guaranteed The iron core is not deformed or rusted.

3.Winding and body: low voltage winding for 1-6 wires and wound four layers (or double) cylinder type, using paper covered flat copper wire. The high voltage winding is multi-layer cylinder type,the impact distribution is good, and the high strength acetal enamelled round copper wire is used.The coil is wound directly on a rotating die consisting of a gear plate and a soft paper tube which is stuck on the iron core post. The yoke insulation and trapezoidal pad are integrated into one, so that the body is evenly compressed. A new type of hanging plate positioning structure,longitudinal and transverse positioning, to ensure that the body is stable and not displaced.

4.Oil tank: mainly corrugated oil tank.It can also be designed as a rectangular chip radiator tank.