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

Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

2 Answers   TATA,

what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing

0 Answers  

what is the use of spst switch in performing experiment on self excited dc motor?

2 Answers  

what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??

0 Answers  

What are the maximum and minimum ratings of MCB,MCCB,ACB,OCB,VCB and SF6 breakers?

2 Answers   ABB, SK E&C, Sodexo,

In LT Line What is the minimum clearance required between phase to phase busbar & between Phase to body of the panel? Also between Neutral &phase, & Neutral & body of panel. as per standards.

1 Answers  

Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com

1 Answers  

125Kva Dg can take up how much amphere load.

7 Answers   Indian Railways,

We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 Answers  

why DC is not generated instead of AC?

4 Answers  

Do these factors (settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot)) are the part of first order, second order, higher order, linear, non-linear, open-loop, closed-loop, homogeneous & non-homogeneous systems ?

1 Answers   Limton,

What type of fittings and electrical accessories can be install in radiation area ?

0 Answers