
If a transformer to change the core is fully applied, it can save the power equal to that of Qianshan nuclear power plant in a year. Yet such signigicant energy-saving amorphous alloy transformer do not popular in the industry and therefore it needs to be promoted greatly.
the no-load loss of the steel transformer used for traditional power grid is always a problem. The amorphouse alloy core is formed by the molten state alloy after cooling, for its special permeability, the no-loas loss is 80% lower than that of traditional steel transformers, the electricity load has grown by 10% percent recently, which equals to 370,000 piece of 315KVA transformer,and it can save the power 2.46 billion power a year if all applies the amorphous alloy transformer than the traditional steel transformer, and the number exceeds the whole power of Qinshan Nuclear Power Station. And if these are converted to electrical energy consumption and emission, that equals to an annual 1.01 million tones of coal consumption and 2.03 million tons of carbon dioxide emmisions.
The former State Development Planning Commision, Ministry of Science and Technology Commion all demands that the amorphous alloy transformers should be developed and promoted as early as 1996. The price of amorphous alloy strip is always high for the monopolize of Janpan's Hitachi Metals, and the price is on a rising trend for the great demand of amorphous alloy core. All above limit the promotion of amorphous alloy transformer in China.
There are two reasons for this, one is that the industry has beening formed and the other is pessic application-there are about 5 millon distribution transformer applies on grid among which 25,000 piece amorphous alloy tansformer. There are about 370,000 piece of transformer increased every year yet the total saling number of amorphous alloy transformer is no more than 5,000 piece. The reasons is as follows;1. The price of amorphous alloy transformer is higher, that is high one time input. 2. disunity interests of the operationer and the buyer. The buyer is unwilling to buyer the more expensive transformer to save the power for the no-load loss is assumed by the state. 3. the power system has a process to adapt to the amorphous alloy transformer.
the price rate of traditional steel transformer and amorphous alloy transformer is 1:2, and in 2004 for the sillicon iron price soared, the rate is 1:1.3. The price of amorphous alloy transformer will get down as the amorphous alloy transformer industry scale expanding. Shanghai EK Investment Group developed the S)BH-M type transformer which applies the amorphous alloy core. The core is a new style magnetic conductive materail. The no-load loss of this kind of transformer is 80% lower than that of stalloy cored transformer, and no-load current is also 80% lower. It is the most ideal distribution transformer in energy saving at present, especially suitable for the rural power grides and developing districts, where the load factor is rather low. Tha appliance of such transformer can promote the policy of energy-saving. If the government can promote different industries work together to seek the mutual benefit and use the amorphous alloy transformer which can promote the energy-saving greatly.