Answer / linu mohan

RELAY CODE NO.-32
DIRECTIONAL POWER RELAY

Answer / sanjay d. dabli

DPR IS DIFFERENTIAL PROTECTION RELAY & IT IS USED FOR FAULT CURRENT PROTECTION.WEATHER IT MAY EARTH FAULT OR PHASE TO PHASE FAULT. IT'S NO IS 64.

what is diffence between synchronus and asynchronus AC motor.?

1 Answers  

---

HOW TO CALCULATE THE DOMESTIC POWER FACTOR?

3 Answers  

---

what is the significance of 3.5 core cable? or what does this half core mean and why is it required?

5 Answers  

---

How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

0 Answers  

---

what are the differance between neutral and earthing?

3 Answers  

---

how does grading rings & spacers in transmission line works? Working Principle?

0 Answers  

---

Resistance of low voltage side of transformer compared to high voltage side is A less B equal C more D depens on design

1 Answers  

---

what factor is necessary during design of HT & LT MOTORS.

2 Answers   ABB, L&T,

---

what are the range of memory address in plc for L&T lx7 4A

0 Answers  

---

What is the meaning of maximum demand

21 Answers   MN Dastur,

---

For what purpose an AVR in generator sensing generator output voltage?and how the sensing is done by AVR?

3 Answers  

---

WHAT IS START TO >5HP INDUCTION MOTER IN STAR DELTA METHOD?

2 Answers  

---