Answer / rakesh jha

A 3-phase transfomer required it's neutral to be grounded.
In delta-delta connection, neutral is not grounded. we use
small star-delta transformer to connect with delta-delta
transfomer and neutral will be grounded.

Answer / zizo

In cases where the neutral point of three phase system is
not accessible like the system connected to the delta
connected side of a electrical power transformer, an
artificial neutral point may be created with help of a
zigzag connected earthing transformer.

Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

0 Answers  

---

whay we transmit power in 3phase no in 4 or 2 or 5......etc?

4 Answers   CCCL,

---

what is the different beetween kva and kwh?

4 Answers  

---

The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

0 Answers  

---

HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

---

---

What's is the difference between IVT and CVT?

1 Answers   CPCL,

---

how do you test the capacitor bank ?

12 Answers   Essar,

---

What is the actual calculation for transformer short circuit test?.

0 Answers  

---

A d.c. Shunt motor is found suitable to drive fans because they require?

0 Answers  

---

When is lag lead compensator is required?

0 Answers  

---

HOW TO CALCULATE THE ILLUMINATION IN INDOOR LIGHTING?

0 Answers   L&T,

---

what is the difference between UPS & Inverter

7 Answers   HAL,

---