magnetization curve fictitious magnetic charge 2 integral equation 2 крива намагнічування 2 кривая намагничивания 2 621.3 1 approximation 1 capacity of the zero sequence 1 current transformer 1 cylindrical core 1 electromagnet 1 electromagnetic processes 1 ferromagnetic hysteresis 1 ferroresonance 1 magnetic field 1 magnetic moment of the core 1 magnetization 1 mathematical model 1 mode neutral network 1 nanosecond current interrupter 1 non-uniformly magnetized core 1 numerical simulation 1 saturable reactor 1 semiconductor-magnetic pulse generator 1 spacecraft control system 1 voltage transformer 1 апроксимація 1 електромагнітні процес 1 емкость нулевой последовательности 1 интегральное уравнение 1