WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

---

can we use HT cables for LT power supply ?

1 Answers  

---

What is the need of generator relay panel

0 Answers   Newell,

---

what r the types of detectors? state the location these detectors?

3 Answers  

---

we have 1000 litre water tank,it located at 25m hight from ground level,the water level on 10m below from ground level.for fill the tank within 1 hour,how much of motor rating(HP) want to select?

0 Answers  

---

In 3 phase induction motor even with low Voltage it reaches nearly it's rated speed why? (for example instead of 400V it reaches with 250V)

2 Answers  

---

how to check the earth resistance value& what is the minimum earth resistance for good earthing sysytem.

33 Answers   Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro,

---

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is onbserved the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

1 Answers  

---

Fire pumps are not used with ELCB control, why ?

4 Answers  

---

how can we chack a capacitor in acircuit

2 Answers  

---

What is triac?

3 Answers   NTPC,

---

What happens if ac is applied to dc systems and vice versa?

5 Answers  

---