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AyaanVIP

Asked: July 19, 2021In: Education

Is Quearn Released New Application?

shivam guptaEnlightened

Asked: June 24, 2022In: Education

Given : total area = 473 mm2 and Number of bars = 8 for a rotor design, what is the value of area of each damper bar? a) 59 mm2 b) 455 mm2 c) 475 mm2 d) 3784 mm2

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the formula of the area of each ring short-circuiting the bars? a) area of each ring short-circuiting the bars = (0.7-0.9) * area of damper bar b) area of each ring short-circuiting the bars = (0.8-1) * area of damper bar c) area of each ring short-circuiting the bars = (0.7-1) * area of damper bar d) area of each ring short-circuiting the bars = (0.8-0.9) * area of damper bar

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the formula for the area of cross-section of each damper bar? a) area of cross section of each damper bar = total area of bars per pole – number of damper bars per pole b) area of cross section of each damper bar = total area of bars per pole + number of damper bars per pole c) area of cross section of each damper bar = total area of bars per pole / number of damper bars per pole d) area of cross section of each damper bar = total area of bars per pole * number of damper bars per pole

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the formula for the length of each damper bar for small machines? a) length of each damper bar = 1.1 * axial length b) length of each damper bar = axial length + 0.1 c) length of each damper bar = axial length – 0.1 d) length of each damper bar = 1.1 / axial length

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the formula for the pole arc? a) pole arc = number of bars per pole * stator slot pitch * 0.8 b) pole arc = number of bars per pole / stator slot pitch * 0.8 c) pole arc = number of bars per pole * stator slot pitch / 0.8 d) pole arc = 1 / number of bars per pole * stator slot pitch * 0.8

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the percentage of the damper windings slot pitch with respect to stator slot pitch? a) 30% b) 40% c) 20% d) 60%

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the range of current density in the damper bars? a) 3-4 A per mm2 b) 3-5 A per mm2 c) 3-6 A per mm2 d) 4-6 A per mm2

shivam guptaEnlightened

Asked: June 24, 2022In: Education

What is the formula for the area per pole of damper pass provided? a) area per pole of damper pass = 0.2 * specific electric loading * pole pitch * current density in damper bars b) area per pole of damper pass = 0.2 * specific electric loading * pole pitch / current density in damper bars c) area per pole of damper pass = 0.2 * specific electric loading – pole pitch / current density in damper bars d) area per pole of damper pass = 0.2 + specific electric loading * pole pitch / current density in damper bars

shivam guptaEnlightened

Asked: June 24, 2022In: Education

The mmf of the damper windings depends on the pole pitch value. a) true b) false

shivam guptaEnlightened

Asked: June 24, 2022In: Education

The damper windings are made use of in synchronous generators to reduce the oscillations and to prevent hunting. a) true b) false

1 2 … 11,358

Is Quearn Released New Application?

Given : total area = 473 mm2 and Number of bars = 8 for a rotor design, what is the value of area of each damper bar? a) 59 mm2 b) 455 mm2 c) 475 mm2 d) 3784 mm2

What is the formula for the length of each damper bar for small machines? a) length of each damper bar = 1.1 * axial length b) length of each damper bar = axial length + 0.1 c) length of each damper bar = axial length – 0.1 d) length of each damper bar = 1.1 / axial length

What is the formula for the pole arc? a) pole arc = number of bars per pole * stator slot pitch * 0.8 b) pole arc = number of bars per pole / stator slot pitch * 0.8 c) pole arc = number of bars per pole * stator slot pitch / 0.8 d) pole arc = 1 / number of bars per pole * stator slot pitch * 0.8

What is the percentage of the damper windings slot pitch with respect to stator slot pitch? a) 30% b) 40% c) 20% d) 60%

What is the range of current density in the damper bars? a) 3-4 A per mm2 b) 3-5 A per mm2 c) 3-6 A per mm2 d) 4-6 A per mm2

The mmf of the damper windings depends on the pole pitch value. a) true b) false

The damper windings are made use of in synchronous generators to reduce the oscillations and to prevent hunting. a) true b) false

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