KS C IEC 60255-11-2005(2020) Electrical relays-Part 11:Interruptions to and alternating component(ripple) in d.c. auxiliary energizing quantity of measuring relays
2005KS C IEC 60255-11:2005 Electrical relays-Part 11:Interruptions to and alternating component(ripple) in d.c. auxiliary energizing quantity of measuring relays