Answer / ajit

it is a protective zone relay it sence the vector
difference between two or more similar quantities.
generally it is current operated .at normal operating time
the sum of Ia+Ib+Ic=0 ,but in abnormal conditation the
resultant current will not zero some current will flow
through trip coil & trip the circuit. most differential
relays are baised current differential current.

What are the voltages at which electrical energy is transmitted

7 Answers   KSEB,

---

How can we measure and monitor critical performance parameters of Diesel Generator Sets, both electrical and engine ?

3 Answers   Cologicx Systems,

---

Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

0 Answers   NCC,

---

what is difference between ELCB, RCBO & MCB

2 Answers  

---

IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 Answers  

---

Why positive terminal of DC 48V was earthed?

1 Answers  

---

What difference between ref protection and differential protection ?

0 Answers   EPC, INEL Power System Engineers,

---

how does an encoder work???

0 Answers  

---

hi friends can u tell me name of the sites where i can get animation of electrical machines......

1 Answers  

---

What is the difference between the transmission line and distribution line?

0 Answers  

---

What may be happen if neutral and earth is shorted in a substation

3 Answers   Bureau Veritas,

---

explain the application of reciprocity theorom

0 Answers  

---