How are harmonics produced in AC machines?

Answer Posted / dfdsfsd

due to nonsinusoidal waveforms

Is This Answer Correct ?    7 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2239


why you don not show protection and type of isolation in key single line diagram?

1492


What is process of anneling transformer core

1471


what will happen if OLR CT in all phases are short circuted

1691


WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

1446






what is frequency response?

658


An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.

7024


How to choose size of the cable w.r.to current carrying capacity ...

1690


what is the difference between 4pole & 6pole DC Motors & give advantage ?

1436


diff b/w normal grounding and resistance grounding

1417


Post possible questions for Power Factor Panel FAT / SAT

978


What is meant by derating factor?

677


What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)

1128


WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

1696


What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

1106