Answer / azkal

gen under freq is needed to protect the generator and the
load, -for generator because under overloading condition
the generator will slow down to try to accomodate the extra
load, this will result in overheating of stator windings,
while also under this condition (under freq) some equipment
can be damage or stall because of under freq. A load
shedding scheme using dedicated freq sensing relays will
trip (disconnect) a set of load from the grid to recover
from under freq and stabilize the system avoiding damage to
generator and connected equipments.

Answer / binu mathew

when generator operates with under frequency mostly its
speed matches with resonance frequency which causes high
viberation in generator and turbine.this is generator do
not operates with under frequency.

What are the causes of positive and negative propeller slip?

0 Answers   RRB,

---

What is the jet plane?

0 Answers  

---

What are the objectives of NVH (Noise Vibration and Harshness) analysis?

3 Answers   BARC,

---

why conservator contains 8% total oil qty in transformer any formula to calculate

0 Answers  

---

what is there in altenator which produces electricity?

1 Answers   Torrent Power,

---

What is the purpose of gravity disc in centrifugal purifier?

1 Answers   Auburn, RRB,

---

Explain how is natural gas better than lpg?

0 Answers  

---

what is the difference between anf & centrifuge?

0 Answers  

---

Can some one please show me the design of a POT Bearing.

0 Answers   General Motors GM, GM General Motors,

---

What does dynamics of machines deals with ?

0 Answers   Godrej,

---

what's are the Unit's of RPN (Risk Priority Numnber)

2 Answers  

---

Explain the difference between afbc, bfbc, pfbc and pcfb in regard to fluidised bed technologies.

0 Answers  

---