Answer / kundan malani

bcz the voltage measured in the line to ground and ground is
the reference's so that the PT Primary are the grounded.

Answer / p.k patel

voltage is measerd from line to grond and another reason if any fault occur at primary it will flow through the ground and equipment will protected

Answer / soumik biswas

We all know CT secondary should be grounded but why not PT secondary?

Answer / munish

PT is instrument and it is single phase T/F.it is working
on mutual induction.so it take neutral from ground.hence PT
primary is grounded.

Answer / o.p.arya

PT primary winding has delta connection and secondary in star
so delta winding how is possible to grounding always star
winding grounded to measure the voltage phase to phase &
phase to ground or neutral.

What is meant by Floating Neutral? how to prent

7 Answers  

expansion of rccb

3 Answers  

Can HT cable(11kv cable) be used for 415V, 700A requirement.

5 Answers  

What is meant by inverse definite mean time (IDMT)& definitemean time (DMT)?

5 Answers  

Question about ct secondaries connections?

1 Answers  

if the magnetic lines can pass through a vaccuum area

0 Answers  

you have a 2 tonne ac that operates for 2 hrs daily what will be you monthly bill (this is complete question asked nothing else was given)?

1 Answers  

How would you supply power to a village which is very far from a sub-station and has only a 11kV line running near by?

3 Answers  

Explain about 3 phase motor fault current calculation with examples?

0 Answers   QTC,

Why reverse relay used

2 Answers   cpgn,

what is MCCB?

8 Answers   NTPC,

what is real time system type definition

1 Answers