Motor and generator coupled together , panel is separate and has microprocessor
the equipment works fine and we have 60 HZ output , what makes me not happy is the level of vibration
Hi Guys,
I just commissioned and tested a 275 KVA Piller frequency converter which was in service before, while it was off-loaded there was No vibration generated, but when we loaded it we start to see some vibration from the equipment, there were 4 Rubber bases that absorbed the vibration and...
from the technical point of view, what is better
1- using 1250 A change over switch OR Using separate isolator and circuit breaker for each source and depending on LOTO theory?
Hi lads,
need advice here
we are building low voltage distribution panel to supply loads such as compressors, dryers, etc
the main supply will be from the utility and we use 1250A LOAD BREAK SWITCH, at the same time the same panel will be supplied from the emergency supply which will be the...
Hi Lads
just to let you know , after several trails and many attempts were taken
we changed the drive and adjusted parameters like old drive and motor is working well
thanks for your support
NEW MOTOR WORKED WEEL FOR OVER YEAR WITHOUT ANY PROBLEMS TILL LAST WEEK
CONTROL MODE IS SCALER CONTROL MODE
OPEN LOOP CONTROL SYSTEM WITHOUT FEEDBACK
OVER CURRENT APPEATS AFTER 3 OR 4 MINUTES FROM STSRTING SPEED WITH FREQUENCY OVER 30 HZ
I checked all parameters all were good
increased acceleration and deceleration times
performed ID RUN ...
the drive only worked well to values under 35 HZ
When I increased the value over 35 HZ ..over current fault appears
also ..mechanical team checked belts ..all is t=well
checked bearing...
I have Electric Motor 30kw operates with ABB ACS 550 VSD .. I Face Repeated over current fault when i increased frequency to 40hz ..which equals 1150 RPM ..where rated speed of motor 1500 RPM
THE MOTOR used to drive supplu air fan for AHU system ...when we operate the motor in low speed 900...
