The dry transformers are the transformers that rely on air convection for cooling. The dry transformers are generally used for partial lighting, electronic circuits, machinery and equipment. In the power system, all of the general turbine transformers, boilers transformers, transformers ash, dust transformers, transformers desulfurization are dry transformers, variable ratio 6000V/400V and 10KV/400V, with a rated voltage of 380V for load. And simply refers to dry transformer are the transformers in the insulating oil of core and windings.
There is a type of dry transformer, whose model is SCB10-1000KVA/10KV/0.4KV.
Here, the "S" means that the transformer is three phase transformer, if "S" is replaced by D means that the single-phase transformer.
“C” means that the winding transformer of dry transformer is formed of solid cast resin.
“B” in the dry transformer type means foil winding, and if R is expressed as a wound windings, if L is expressed as aluminum windings, if Z is expressed as OLTC (copper is not marked).
“10” in the dry transformer type suggest the design number, also known as technology number.
“1000KVA” says the dry transformer's rated capacity (1,000 KVA).
“10KV” means a rated voltage, while 0.4KV secondary voltage.