Answer / kk

Rotor earth relay have 2
stage. One 4 alarm & other 4
trip. One can check the
bridge o/p voltage(mV) &
compare with comissioning
time value.

Answer / bhuvnesh kumawat

rotor earth fault alarm comes only if our carbon brushes
become earthed. it may be at the time of changing carbon
brushes.

Answer / sujeet kumar

we have to check the status of zero sequence relay..
if its not affected then there is not any earth fault

Answer / alok

rotor both side earth fault wire open and check countinuti
with the help of multimeter at rotor both end.but one side
wire who is grounded must be grounded.

we can stepdown the voltage from 230/12v ,and we use the voltage for various electronics components why can't we step up the voltage from 12/230v if we can shall we use the voltage for domestic single phase supply

5 Answers   Areva,

---

DIFFERENC BETWEEN VOLTAGE AND CURRENT

1 Answers   Wipro,

---

What is domestic transformer? Draw the connection of domestic transformer.

0 Answers  

---

why high speed tripping relay is used in protection circuit why not normal relay

0 Answers  

---

How to select cable rating for HT/LT Panels

1 Answers   Alstom,

---

What difference between voltage and current

5 Answers  

---

what is star delta starter? how it works? give its control and power diagram.

0 Answers   Bhel, Point to Point Solution, Star Wire,

---

What is phenomenon of electromagnetic induction and how it works?

0 Answers  

---

Wat is power factor exact meaning in terms of technical terms plz explain ?

4 Answers  

---

Why shunt Generator is not recommended to start at ON LOAD condition???

3 Answers  

---

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

0 Answers  

---

What is pd controller?

0 Answers  

---