Answer / k.prakashchandra

similar to potential divider

Answer / narasiman kannan

A VT is a voltage transformer used for measurement &
protection purpose. It is small in capacity as compared to
power transformer. VT & CT are generally classified as
instrument transformers. A CVT is a Capacitor oltage
transformer which is associated with a stack of capacitor
voltage divider. As an example, if there are 2 stacks of
55KV capacitors in a CVT(connnected between one phase &
ground), the actual VT primary winding is connected across
the lower 55KV stack (lower stack to ground). By this, you
save the cost of primary winding & insulation. While a VT
has higher accuracy, CVT has less accuracy and high phase
angle error. CVTs are use for voltage measurement &
synchroniser supply and not for power relays & power
measurement where accuracy is important.

how to check 3phase motor winding with help of multimeter?

2 Answers  

---

how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.

0 Answers  

---

why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

---

what is difference between armoured cable and un armoured cable

2 Answers  

---

At which time Synchronous generator act as a Synchronous Condenser?

1 Answers  

---

What is difference between PLC and SCADA

13 Answers   Uflex, Vimal Fire Controls,

---

what is the voltage level which is used in transformer short circuit test

1 Answers  

---

I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

0 Answers  

---

how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

---

Why Transformer in KVA?

41 Answers   APCPDCL, Apollo Power, College School Exams Tests, Electrical Tech, Hitech, HP, L&T, MDL, Oil and Gas Jobs, TATA,

---

In track electrification Either we use single conductor or double conductor? why?

2 Answers  

---

how to calculate AH of a battery?

8 Answers   Exide,

---