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Transformer Allowable Operation Mode

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Update time : 2019-09-17 16:26:23
Leilang-Electric is located in Shanghai,China.We are specialized in manufacturing all kind of low voltage transformer,three phase transformer,single phase transformer, variac transformer,voltage stabilizer, ac stabilizer,power regulator, reactor, etc.
Rated operation mode: Running according to the relevant technical data specified on the nameplate under the specified cooling conditions.            
Permissible Voltage Change: During the operation of transformer, due to the change of day and night load, the voltage of power grid varies to a certain extent, and the voltage of the primary side of the Inner transformer varies to a certain extent. When the primary side voltage applied to the transformer is equal to or lower than the rated voltage of the primary side coil of the transformer, no influence will occur. If the voltage is greater than the rated voltage, the side should not exceed the allowable value. Therefore, both the national standard and the operation regulation stipulate that the maximum voltage can be operated when the rated capacity does not exceed 5% of the corresponding tap voltage.            
Transformer's Load Capability: In a fairly short period of time, the maximum output capacity of the transformer without damaging its normal use and increasing the natural loss of insulation should be kept within a certain limit for both the multiple of overload and the running time of the transformer under overload.          
Transformer parallel operation: The main problem in parallel operation is how to ensure the balanced distribution of load among Transformers after parallel operation. Transformers must meet several conditions for parallel operation. One is that the voltage of high and low voltage sides of transformers must be equal. The other is that the short circuit voltage of all transformers must be equal. The third is that when three-phase transformers are parallel, their connection group numbers must be the same.
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