toroidal inductors with copper wire winding, transformer and electric fuse

black blue blur board breaker capacitor choke circle circuit closeup coil coils component control copper core current design detail device disassembled dismantled electric electrical electromagnetic electronic electronics electrotechnology engineering ferrite focus fuse green inductance induction inductor inductors industrial industry inverter laboratory macro magnetic miniature network nobody nopeople orange part power protection protector repair ring round safeguard safety selective service shop spare store supply tech technical technology toroid transformer unit white winding wire yellow