It's probably that everything is cool in the morning and the trip is thermal.but early morning, it can run up-to 10bar
It's probably that everything is cool in the morning and the trip is thermal.but early morning, it can run up-to 10bar
Looks like you have some good quality test kit - can you measure the voltage at the motor terminals while it's running? If it performs better in the morning, is the mains voltage maybe dropping later in the day?I have a piston compressor which is belt driven. It's 10bar but it cuts off at 5bar and then the motor trips. In the morning it can run up-to 8bar and trips. The piston pump when it reaches 5bar, it gets stuck but when you you realease air from the exhaust valve it becomes free. Kindly advise
My grandad was a tool maker at the sugar mill in KampalaKampala, Uganda.
Welcome x2
It could be a motor winding short that manifest itself when the motor heats up.
My grandad was a tool maker at the sugar mill in Kampala
your welcomeLooks like you have some good quality test kit - can you measure the voltage at the motor terminals while it's running? If it performs better in the morning, is the mains voltage maybe dropping later in the day?
My compressor is a similar spec but 30+ years old - when I first got it I tried running it on a long extension cable and the voltage drop caused similar problems to what you're describing.
If the supply voltage is OK then as others have said it's either the run capacitor or shorted windings in the motor due to overheating.
Oh, and welcome to the forum.
Really, Uganda is a very good country.My grandad was a tool maker at the sugar mill in Kampala
He was there in the 1950’s. Then with all the Idi Amin stuff he went back to India and came to the U.K. with familyReally, Uganda is a very good country.
idi Amin was a very hard person, he treated people so badlyHe was there in the 1950’s. Then with all the Idi Amin stuff he went back to India and came to the U.K. with family
When it was runningWas the current that is showing on the clamp meter obtained with the motor running or stalled/stopped?
Now that is a good suggestion! Both start and run windings operating all the time? That would explain the high current draw. It would also be good to know the current draw from start-up, or without the belts on the machine...going by the capacitor box, i see theres maybe a separate start/run capacitor. If thats the case, have you checked the centrifugal switch is operating ok?
if thats ok i'm with the rest and going for the run cap.