Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / ramji
The Generator will run still since there some steam trapped
in Turbine.This suitation is called Low Forward Power since
there is not enough Steam to run the Generator in desired
speed.This occurs because of some trapped steam in turbine
for some seconds.Now Days special vents doors are designed
in turbine to release these steam on account of tripping of
turbines
But Normally in protection Trip Logic of Generators there
will be Class:A,Class:B,Class:C
For Class A Gen Breaker will trip for below faults
U/V Stage-2 , O/V , Low Forward Power,Reverse Reactive
power,Neg Ph Seq ,Over Voltage
For Class B Turbine Breaker will Trip which also trip Gen
breaker instantly for below faults
Differential protection , Restricted Earth Fault .....
For Class C Grid Breaker will trip for below faults
Over Frequency and Under Frequency Under Voltage stage-1
and Over voltage
Because when you trip Gen Breaker for Undervoltage it will
result in whole plant black out so for stage-1 tripping of
grid breaker will do
similarly for All turbine faults the Gen Breaker is tripped
so that it is isolated from the system
| Is This Answer Correct ? | 17 Yes | 4 No |
Post New Answer View All Answers
sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.
how much UPS neutral erath leakage current.
What is tranformer differtial?
If breaker is undefined position, first step to do.
According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?
Mention what are the types of semi-conductors?
1.how many types of relays? 2.difference between ATS& STS?
what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?
How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?
list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.
Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend
Haw to check conductivity of budbar
I completed my BE EEE degree 2006 .... which license should i apply .... ?????
what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.
