Basic knowledge about the motor
43. The no-load test of the transformer is usually done by applying voltage and measuring on the low voltage side. The short-circuit test of the transformer is usually done by applying voltage and measuring on the high voltage side.
44. When the transformers are operated in parallel, the conditions for no-load uncirculated flow are: the ratio is the same, and the junction group number is the same.
45. When the transformers are operated in parallel, the load distribution principle is that the value of the transformer load current is inversely proportional to the value of the short-circuit impedance. Thus, the capacity of the transformer can be fully utilized when operating in parallel: the values of the short-circuit impedance are equal, and their impedance angles are equal.
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