Answer / jerry smith

Gas and Steam Turbine Basic protection include:
Overspeed, high vibration, Low lube oil pressure, and high
lube oil temperature.
Specific to gas turbine would be high exhaust temp, excess
spread of temperatures in the exhaust, inlet suction low
pressure, combustion pulsations, compressor bleed valve not
closed, underspeed too close to surge point, fuel valve not
in proper relation to turbine load, and flame detector
failure.
Specific to steam turbines would be inlet steam temperature
high or low, inlet steam pressure low, exhaust steam
pressure high, exhaust steam temperature high, drum level
high on the supply boiler.
Generator faults do not always trip the associated Turbine.

Answer / kaizad

Turbine protection in steam turbines are mainly overspeed, low steam pressure, low vacuum, low vacuum backup, exhaust hood high temperature, loss of generator seal oil, stator water temperature hi, gas concentration very high in stator water,manual trip & electrical trips associated with generator, main transformer, unit service transformer

63.5 ohm NGR is connected with our gas engine genrator running at 500 rpm, 50 hz and synched with WAPDA at 6.3 KV bus voltages, 2500A and 25KA(1 sec). can some one give me proper calculations how it comes 63.5ohm?????

2 Answers   UET,

---

What is df/dt protection?, How to calculate setting range of 30 MW steam generator???

1 Answers   DS Sugars, MEMF,

---

What is indipendant power plant

2 Answers  

---

why do we use contro fluid tank (cft)in turbo generator area(tg) in power plant?

1 Answers   MPL,

---

Why high pressure turbines are single flow 

3 Answers  

---

If a pump has "N" no .of conections in the discharge. If a connection has a heavy leakage. Then it's motor current get affected or not??

1 Answers  

---

what is under voltage protection 27

1 Answers   CLP, NCC,

---

What is definition of hydrogen cell?and were are you use?

1 Answers  

---

What is difference between Actual Drum Level and Compensated Drum Level?

2 Answers   DVC,

---

What is creep, resilience.

2 Answers  

---

operation

0 Answers  

---

How to calculate power press toneage

0 Answers  

---