Answer / devanesan k

The purpose of turning gear will to reduce the initial
torque required to rotate the rotor and it is used to
overcome from the rotor sag.

Answer / anbu

The purpose of turning gear is to rotate the shaft to designed min rpm, when the turbine is in shutdown condition. It is used to avoid eccentricity formation due shaft bend or uneven temperature occur ( may be cool in the bottom side) in the shaft. To overcome this, the shaft should not in ideal state. So, some external source is required to rotate the shaft that is turning gear.

Answer / ajay sharma

A jacking gear (also known as a turning gear) is a device placed on the main shaft of an engine or the rotor of a turbine. The jacking gear rotates the shaft or rotor and associated machinery (such as reduction gears and main turbines), to ensure uniform cool-down. Without turning, hogging or sagging can occur.

wat do u meant by mechanical enggg

8 Answers   Texas,

---

what is 5 element level controller using in boiler.

1 Answers  

---

why we cant measure absolute entropy directly,but the change we can?

1 Answers  

---

Where do you put the oil in a compressor?

1 Answers  

---

Why head of a centrifugal pump is independent of density of fluid?.

1 Answers  

---

WHAT WILL DO IN NEW COMPANY,THAT YOU WERE NOT DONE PREVIOUS COMPANY(RELATED TO YOUR FIELD)

4 Answers   Jindal,

---

What is the purpose of the nozzle of impulse turbine?

2 Answers   RRB,

---

The effect of reheating is

11 Answers   HAL,

---

DIFFERENCE BETWEEN CODES,STANDARDS & SPECIFIFCATIONS?

3 Answers   Essar, Mecon,

---

Which instrument is used to measure the Inner diameter,outer dia,Thichness & Depth.

1 Answers   Bhel,

---

which cooling process used in gas turbine

4 Answers  

---

why is heat treatment of steel metal crucial?

1 Answers  

---