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Generator Frequency and Load Sharing

Generator Frequency and Load Sharing

Assessment

Interactive Video

Physics

11th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the process of load sharing between two synchronous generators operating in parallel, with capacities of 300 and 400 megawatts. It details the problem of distributing a 600 megawatt load between them and determining the system frequency at this load. The solution involves calculating speed regulation and using equations to find the load distribution and frequency. The tutorial concludes with the final calculations and results.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the capacities of the two synchronous generators mentioned?

200 and 300 MW

300 and 400 MW

400 and 500 MW

500 and 600 MW

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed governor characteristic percentage for the first generator?

3%

4%

5%

6%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what frequency are the generators operating at no load?

50 Hz

52 Hz

45 Hz

48 Hz

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total load that needs to be shared between the generators?

700 MW

800 MW

600 MW

500 MW

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the load sharing problem?

Drawing speed characteristics

Calculating load

Finding system frequency

Adjusting generator speed

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the calculated no-load speed for the first alternator?

49.000 Hz

48.076 Hz

50.000 Hz

47.619 Hz

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What formula is used to calculate speed regulation?

No-load speed minus load speed

Full-load speed minus no-load speed

No-load speed minus full-load speed

Load speed minus no-load speed

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