Answer Posted / ramachandran

Buck converter is used 

how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

2003

---

Discribe type of fault in DOL and stardelta startor.

2240

---

what is the difference between general inverter and solor inverter clerly explain plz

2097

---

How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1609

---

physical identification of HT & LT panel

1675

---

how invertor convert the dc into ac give brif detail

2157

---

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

1779

---

Why in ESP Positive earthed

3080

---

What is the name of the winding from which the supply is taken for load connections?

1077

---

what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?

1918

---

how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

2392

---

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

2174

---

tell me about eletrical contractor

1955

---

List the advantages of star-delta starter with induction motor?

1011

---

What is the difference between circuit breaker and isolator

1254

---