Answer / jay

3 CT WITH 3 CORE FOR 3 PHASE
1 PT WITH 2 CORE

Answer / kartheear

3 line PT's prot./meter in 11kv side(before side)
3 prot/meter. CT's at 11kv side(before side)
3 line PT's prot./meter in .433kv side(after side)
3 prot/meter. CT's at .433kv side(afterside)
In each CTs & PTs,ther wil b a seperate core for metering n
protection,dont get confused with the windings in assuming
tat this is for ef,oc and differential,get a CT/PT wit both
metering n protection whatevr d core is depends upon our
application in relays.

Answer / manax

transformer primary side one set (3 nos) ct,pt and
secondary side one set ct,pt required.each ct pt consist 2
core one for metering,one for protection.this LT
Transformer so no need any special protection.

Answer / a.k.mishra

3 ct having 3 core for metering & protection
3 pt for mounted R,Y,B induvisualy for metering & protection
also 1 neotral ct is requried for star connection

Answer / jesudoss

transformer secondary (433v)-3 ct for over current
-1 ct for restrictedearthfault.

Answer / vishal

3 CT's and 3 PT's wil; be required for each phase of transformer

Answer / d.k.sahu

At primary side 3 nos ct for metering & protection,1 no
cbct & 3nos pt.
At secondary side 3nos ct & 3nos pt.
Total ct/pt : 13no

Answer / subu

hi manjunath,
iread your answer but i dont know what is tertiary winding
plz explain that what is the use of that?

Answer / senthil kumar

06CT and 03PT'S

Answer / mubanga mulenga

1 PT, $ CTs

Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.

0 Answers   Modi Builders,

why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

The size and construction of bushings in a transformer depend upon?

0 Answers  

1 HP = how many Kva

5 Answers  

What happen if 1200KW/1500KVA alternator runs at no load and high R.P.M.for one minute?

6 Answers  

Reason of secondary of ct always short

5 Answers   ANITS, EID Parry,

which type of winding is used for high voltage & low current?

1 Answers   GEB,

wich types of current?

2 Answers  

what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..

0 Answers   HPCL,

why motor run slow speed in star connection?explain how?

3 Answers  

In simply words(not explain any formula )what do you mean by power factor.?

5 Answers   DRDO,

i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers