Answer Posted / sandeep vishnoi

first of u have to think why we use star connection and why
we use delta connection .in star starting current
reduced .ok to if u want to increase starting current than
its connect in delta.if u connect rotor in delta than there
is no need of slip ring.



sandeep vishnoi
simbhaoli

Can you explain about Restricited earth fault protection scheme

1831

---

What is core CT & it's function?

2156

---

What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

1645

---

how is working bearing heater?

1963

---

How to Decide(calculate) Bush bar size for copper and aluminiam ?

2111

---

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

1918

---

State ohm’s law?

1083

---

Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

4261

---

what is buffer resistance starter.?.What is the working principle and where it is used..?

2018

---

hello friends..... any one have papers or any study materials?sail ,hpcl...?

1867

---

for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

1931

---

What is Faraday's law

1486

---

how we calculate the withstansing current capacity of wires&cables?

1991

---

Difference between On Line capacitor and Station Type capacitor.

2030

---

What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!

2423

---