Answer / annonymous

Fault MVA = 3MVA/0.0725= 41.38MVA

So fault current on 11kV side= 41.38/(1.732x11x0.8)= 2.715kA

fault current on 0.440kV side=41.38/(1.732x.44x0.8)= 67.87kA

for star delta connection,,why the contactor star not burn,when red,yellow and blue cable is looping.

2 Answers   Mahindra Water Utilities,

---

What is time response of the control system?

0 Answers  

---

Can we use 3 phase energy meter for measureing power in 2 phase 440 V phase circuit?

2 Answers  

---

If single phase having 220v so why 3phase is440v.

7 Answers   DLF,

---

how LVDT works?

2 Answers  

---

What is maximum rating of transformer ?

2 Answers  

---

What is difference between 220v/50Hz & 120V/60Hz?

8 Answers  

---

what's float charger and boost charger? why it's used?

2 Answers   APCPDCL, PTCL, Rolls Royce, Siemens,

---

The mechanical angle is electrical angle A always less than B greater than or equal to C equal to D less than or eaual to

1 Answers  

---

What is the difference between Ac curent & DC current

2 Answers   Juniper Networks,

---

What is a thermocouple, and it working principle?

2 Answers  

---

Hi,Any one has idea regarding the KPTCL Recuirtments for AE'e & JE's for the year of 2009-10???Kindly help in regards..

1 Answers  

---