12.5mva 10kv Single Phase Industial Silicon Arc Furnace Transformer

12.5MVA 10KV  single phase industial silicon Arc Furnace furnace transformer

Technical parameters:
Capacity: 12.5MVA 
Connection Symbol: Dd0
Primary Voltage(kV): 10
Secondary Voltage(V): 325-166
Regulation Voltage Step: 11
Type of tapping: Off-circuit power driven
Short-circuit Impedance(%): 8
No-load Loss(kw): 12.4
On-load Loss(kw): 145.7
Weight(Ton): Active Part 13.1  Oil 7.6  Transportion 24 Total 27.4

Main function and characteristic

Electric furnace transformers are transformers which supply power to the electric furnaces. It can drop high 
voltage to the working voltage the electric furnaces need.

There are many kinds of electric furnaces,so there are many kinds of electric furnace transformers cooperating 
with them.Now,our company manufactures following electric furnace transformers:electric furnace transformers 
used in steelelectric furnaces(including on-laod,no-load and enclosed reactor) ; mineral hot furnace 
transformers used to smelt kinds of iron alloys,hydrosilicons,carbides,etc(single phase,three phases on-load 
and no-load tap changer).They are low loss and energy-saving products.Cooling methods are self-cooling, 
forced oil water cooling, etc.It can be designed specially according with customers’ requirements.

The model of the electric furnace transformer is expressed as follows:

The meaning of model:

H–Steelmaking arc furnace,HJ–ladle furnace,HZ–electro-slag furnace,HC–calcium carbide furnace,HK–
mineral hot furnace,HG–line frequency induction furnace;

Number of phase:D–single phase,S–three phase;

Types of cooling device :ONAN,wind cooling F,water cooling S.

The methods of oil circulation:natural circulation,forced oilcirculation P.

Tap changer:off-circuit tap changer,OLTC Z.

Enclosed attached device:changing leakage flux,enclosed reactor K.

Rated capacity:KVA.Voltage class:KV.

 
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