Tóm tắt:

Transformers in the mine power grid с often designed and manufactured with line loads. However, during operation there с many nonlinear loads entering the network ứ causes the current passing through t transformer no longer sinusoidal. This c； cause the transformer to overload evi working with the design parameters. The pap focuses to the effect of nonlinear loading < losses and heat dissipation in the transformi The results of the study will provide reasonat solutions for the operation of the transformer ensure ifs longevity and no damage.