Answer / abhishek patel

When motor is started in star Il=Ip (Line current = Phase
current). While working in delta Il=_/3Ip (Line current =
root 3 phase current).
Current taken on R Y B phase is known as Line current,
while current taken on motor six terminal individually is
known as phase current.

Answer / rajesh

simple u r having a CT(current transformer on ur circuit.so
its measure the phase current.

Answer / hanook

Simply by using TONG TESTER..

In chillers & freezers which gas will be use?

3 Answers  

---

Why do we require transformer with less specific weight if supply frequency is increased?

0 Answers  

---

we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

---

VCB in closed position during opertion if vaccume break then what will happend? it has any protection ?

1 Answers  

---

We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

0 Answers  

---

---

IS diode and blocking diode are the same?..what is meant by blocking diode

1 Answers  

---

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

0 Answers  

---

Explain Continuous and Discrete signals?

0 Answers   UOG,

---

why are the transmission lines operated at 220 kv nly... nt les dan dat...

3 Answers  

---

show the single line diagram of star delta starter with single phase preventer

0 Answers  

---

WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

0 Answers  

---

What is the basic difference among IPS,UPS,EPS?

2 Answers   ABB, Navana,

---