Brief instruction:

SZ10 series 33KV class On-load voltage regulation(on load transformer) is a voltage regulation method 

by which a transformer can change the voltage by changing the tap gear when operating under load. 

Power electronic component switches have the advantages of frequent switching, no spark and long service life, 

so they can be used as on-load tap-changer for distribution transformers.

Technical parameters of this products--on load transformer:

FAQ:

1. What is on load and no load?

   A transformer is said to be on “no-load” when its secondary side winding is open circuited,

   in other words, nothing is attached and the transformer loading is zero.

   
   

2. On load transformer

   When an electrical load is connected to the secondary winding of a transformer and the transformer loading

   is therefore greater than zero, a current flows in the secondary winding and out to the load.

3. What is the equation of transformer on load?

   Transformer full load current = kVA / (1.732 x Volt)
   
   Transformer full load current = 1000 / (1.73 2× 480) = 1203 Amp.