For measuring positive, negative and zero sequence voltages in a system, the reference is taken as
A) Neutral of the system only.
B) Ground only.
C) For zero sequence neutral and for positive and negative the ground.
D) None of the above.
Correct Answer:
Verified
Q11: Isolator in substation is open under -------------
Q12: Earthling switch is used for
A)measuring of safety
Q13: If the time of operating of a
Q14: A fault is more severe from the
Q15: A reactance relay is
A)Voltage restrained directional relay.
B)Directional
Q17: Positive, negative and zero sequence impedances of
Q18: Phase comparators in case of static relays
Q19: For reducing tower footing resistance it is
Q20: Rate of rise of restriking voltage depends
A)Type
Q21: What is the purpose of back up
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents