Answer / amal kumar

Y-d or D-y is the most commonly used transformers.
Y-d provide a stable neutral system.

what is the exact direction of current? as we know current travels from higher potential to lower potential,so if we take battery +ve to -ve implies current direction is from positive terminal to negative terminal.,whereas electrons flow from negative to positive as they are attracted by positive ions.current will be the plow of charge but not flow of positive ions.please clarify my doubt friends.

2 Answers  

---

what i the full form of ABS 111 in transformer.

1 Answers   Birla, Ford,

---

How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

0 Answers  

---

what is the constructional difference between a power transformer and potentian transformer?

0 Answers   BTM,

---

difference between isolater and circuit breaker?

7 Answers   Adani,

---

---

how external lighting design? please give examples?

0 Answers  

---

Why a single-phase induction motor not an inherently self-starting machine?

11 Answers   ETC, Hindustan Shipyard,

---

Could anyone clarify my wondering. What is the difference between knee point voltage and saturation voltage of the CT. Is their any formula to calculate these values?

2 Answers  

---

What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

0 Answers   APTransco,

---

How to calculate phase to phase difference in 33KV Line ,11KV Line etc.

1 Answers  

---

can you explain the rms value in simple words....

5 Answers  

---

Which type of DG need Netral Earthing?

1 Answers   Hyundai,

---