According to IEC 60617 (IEC Relay Symbols) symbol below means ___

According to IEC 60617 (IEC Relay Symbols) symbol of relay as shown Means

52-IEC 60616

A. Under speed relay
B. Underfrequency relay
C. Underpower relay
D. Undervoltage relay

Show Answer

Answer: D

Share your understanding of this question with the correct explanation.