725KW Three DG set Synchronised but DG no-1 power showing
750KW DG n0-2 power showing 500KW DG no-03 showing 500KW.
DG is Shynchronised but why this different power showing?
Answer Posted / jince
Regarding paralleling DG sets we sticks only on the theoratical conditions of same voltage frequency phase angle and phase sequence. And now a days its easy to achieve using sync relays. Load sharing is the major thing in paralleling the DG sets. Many factors are depending on it
1. Droop of individual DG set must be same
Droop implies both voltage and frequency droop. it is the percentage of noload voltage or frequency. ex. 1% 2% 3% etc. Ex.1% voltage droop of 420V(noload)is 4.2V and it means on full load DG voltage comes down to 415.8V and not any more
Same is the case with frequency droop. All DG's droop must be same
2. On loadsharing we adjust voltage of DG's to met REACTIVE POWER AND SPEED(FREQUENCY) TO SHARE ACTIVE POWER
In order to share the load evenly we must control the voltage and frequency of individual DG's constantly
And it depends on load nature
In my personal experience for resistive loads (lamps)
loadsharing is not required as no variation occurs
For varying loads like lifts motors ac chillers compressssors etc constant loiadsharing is required
For clarification please reply
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
What is dc current source? Differentiate between ideal and non ideal current sources?
how to calculate voltage drop and followed by cable calculation?is there avail in formula?
Difference between control junction box (cjb) and power junction box(pjb)?
What is the universal motor?
why r we using shell transformer for low voltage
What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.
Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar
number of I/O devices in siemense plc
why power not passes in plastic and rubber material
How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?
Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.
'documenˁ
hi, could someone help me to find a control design for syncronising panel .
how to test and calculat the head and discharge in borewell compressor
Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC