SZ9（11,13) Series Three-phase On-load-tap-changing Power Transformer of 35kV

This kind of product is applied to power system of three-phase, 50Hz as well as
35kV and below, it is the main transformer equipment of medium and small-sized
transformer substation, supplies power distribution, power and illumination for
the industry and agriculture.The company introduces domestic and overseas advanced technique, adopts the latest material and optimizes design, which enables the product structure more reasonable, and greatly improves the product electric strength, mechanical strength and heat-sinking capability.

Based on the S9 series of S11 series products, the no-load loss is reduced by an average of 30%, the average temperature rise is reduced by 10k, the product life is more than doubled, and it can still operate for a long time even under 20% overload conditions. The product operating noise is reduced by an average of 2-4 decibels.