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Vinil7 [7]
3 years ago
5

For an installation with a 150-kVA, 3-phase transformer, a 480-volt primary, and a 240-volt secondary, calculate the maximum sta

ndard size circuit breaker permitted for primary-only protection using Table 450.3(B), Note 1.
Engineering
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer: The 500 kVA, 3-phase transformer in the image has a 12,470 volt primary. To size a fuse for the primary side, use the formula in the image as seen ...

Explanation:

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A particular motor rotates at 3000 revolutions per minute (rpm). What is its speed in rad/sec, and how many seconds does it take
raketka [301]

Answer:

ω=314.15 rad/s.

0.02 s.

Explanation:

Given that

Motor speed ,N= 3000 revolutions per minute

N= 3000 RPM

The speed of the motor in rad/s given as

Now by putting the values in the above equation

ω=314.15 rad/s

Therefore the speed in rad/s will be 314.15 rad/s.

The speed in rev/sec given as

ω= 50 rev/s

It take 1 sec to cover 50 revolutions

That is why to cover 1 revolution it take

\dfrac{1}{50}=0.02\ s

5 0
4 years ago
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Why do need engineer and architect​
USPshnik [31]

Answer: By using the expertise of an engineer or architect, a project can be built more efficiently and economically since the homeowner's vision can evolve on paper rather than during the building process. They also will work diligently with your budget and select materials and builders within your price point.

Explanation:

5 0
3 years ago
The velocity distribution for laminar flow between parallel plates is given by u umax = 1 − ( 2y h ) 2 Where h is the distance s
Lynna [10]

Answer:

Explanation:

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5 0
4 years ago
Why are you asked to draw a sketch of a Bridge-Design on a graph sheet/A4 sheet?
elena-s [515]

Engineers or architects can be asked to draw a sketch of a bridge-design on a graph sheet or A4 paper to communicate their ideas and scale their drawings.

Architectural sketches are about the communication of ideas. Engineers and architects use hand sketching to clarify elements of the design to the contractor or client.

It should be noted that drawings can also be drawn on a graph sheet or A4 paper to represent the detail before it's eventually constructed.

Scale drawings are used for the illustration of items that are not convenient to draw their actual size. In the construction industry, scales are used depending on the nature of the drawing. Drawings can be made on a graph or A4 paper due to the ease of printing, reproducing, and resizing the drawings.

Read related link on:

brainly.com/question/20689874

4 0
3 years ago
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PLEASE HELP, THANK YOU
Elena L [17]

Answer:

6,3,2,5,1,4 because they jst are

Explanation:

3 0
3 years ago
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