Distribution transformers - Capacity choice

Currently in distribution transformers in operation, there is a result of excessive capacity and underrun, but also due to overload or overcurrent operation and cause overheating, even burn situations. This device capacity selection misconduct,  air circuit breaker  the supply of power system reliability and economy.
The load capacity of the transformer is selected on the basis of statistics. Since the load is expected not easy to do accurate, - like the expected maximum load by choice. Results of this election are often capacity setting is too large, the operation of the power system to be adversely affected. In terms of economic performance option is to facilitate

Transformer copper loss and iron loss equal conditions, the maximum export transformers and  Electric energy meter  rated load rate of economic capacity and maximum load ratio. As the actual running load is not necessarily the load statistics of the maximum load, and the load is random, operating efficiency is variable, its economic

Operational benefits difficult to achieve.
Present in the distribution system is being replaced using a new low-loss transformers transformers with high energy consumption, a single iron loss is reduced about 40%. Since a large number of distribution transformers, load change is also large, the economic benefit is very significant.
Therefore, we consider how to make the setting of the transformer capacity without compromising the normal life of the transformer,
Selection should be based primarily on distribution transformer capacity.
Our recommended  circuit breakers  is: According to the expected negative thin out the maximum load Smax and the typical daily load curve, in accordance with the International Electrotechnical Commission (IEC) standards (1972) an oil-immersed transformer war load guidelines, select distribution transformer capacity. The standard has been adopted country. The advantage of this method is to consider the

Considered normal overload capacity of the transformer, the transformer does not shorten the life of India under the premise of full capacity of the transformer set. This from reduced investment in improving the operating conditions of the distribution network, and its significant economic benefits.