Answer / gajanan koshatwar

generator earth fault relay basically monitors the
insulation level of roror winding and shaft ground. The
rotor earth fault relay injects the low frequency pulse in
one field winding terminal wrt ground and in turn it
measures the value of refelcted pulse and claculates the
insulation value.

For testing generator earth fault relay put specific values
of precision resistors across terminals and observe the
values in relay if display is provided, or set the trip
value less than the resistace put for testing , then relay
will issue trip command and this proves relay is heathy.

Gajanan koshatwar manager Power plant

toughest decision you ever had to make

1 Answers   Infosys,

---

how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

---

explain maximum demand factor

1 Answers   Sterling,

---

What is the diff. between single compression and double compression gland

0 Answers   ASL,

---

what is the lightning arrester rating for 3.3kv system voltage

1 Answers  

---

---

how to deside the capacity of chock for drive?

0 Answers   Essar,

---

What is the Power factor of DC Power system ?

9 Answers  

---

i have DEEE certificate in vinyaka misson unive rsity. is a INGNO if possible get the electrical C licences in Tamil nadu?

0 Answers  

---

What is slip in an induction motor?

0 Answers  

---

What is the LUX

2 Answers  

---

which book to refer in electrical engineering for iocl exam & which book for general english.

0 Answers   L&T,

---

What are the reasons for AVR failure in LT DGsets ?

2 Answers  

---