Answer / arun r

VECTOR GROUP TEST [For 3Ф Transformer Only]
1. HV Side RФ & LV -1 r Ф Short Provide.
2. 3 Phase 4 Wire Supply Applied In HV
Side.
3. For Following Voltages Measured Are In
Volts
RY YB BR RN YN BN

ry yb Br rn yn bn

Rr Ry Rb Yr Yy Yb

Br By Bb Nr Ny Nb

Rn Yn Bn Nn


VECTOR GROUP = Dyn5

PROOF
1. Ry=Rb 3.Br<Bb
2.By<Bb
4.Yy=Yb

Answer / karthick

If I short Hv side Y phase and LV side r phase what will happen

The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

0 Answers  

---

can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.

2 Answers   Bhartiya International,

---

Relation between pyramids and electrical technology?

1 Answers  

---

whats the application of voltage regulation? and whats the voltage regulation's device?

0 Answers  

---

what will happen if dc machine are supplied by ac source??

2 Answers  

---

why the projects getting loss?

0 Answers   SBPL,

---

how power can be saved using VFDs in detail explain

1 Answers  

---

why neutral should connect to earth in delta-star type transformer

4 Answers  

---

what is p.s impedance measurement test in earthing transformer?

0 Answers   Greenko,

---

what is difference b/w HT & LT and the range of HT & LT ?

22 Answers   AF, Schneider,

---

why does same amount of current flow in the circuit inspite of any number of resistances in the circuit?

3 Answers  

---

what is residuel magnetism

1 Answers  

---