Betapacks sound like washing machines

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   Hey all,

For the past month I've had 5 betapacks installed at my place, running off a 3ph32 supply and controlled by a Leapfrog. Everything is running safely within it's limits and the actual draw is tiny, maybe no more than 2kw across the phases at any one time.

After 3 weeks of working perfectly, the other day they starting making a weird noise after powerup, that is to say it sounds like a washing machine on a slow cycle ie not a constant drone.

The mains meters fine, the distro says all is fine, the betapacks look happy and everything works as it should except this loud noise. Increase or decreasing the load makes no difference and we've even repatched to no avail.

Any ideas?

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SamV Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 21 October 2008 Location: London Status: Offline Points: 8711	Post Options Post Reply Quote SamV Report Post Thanks(0) Quote Reply Topic: Betapacks sound like washing machines Posted: 01 August 2014 at 9:09pm
	Hey all, For the past month I've had 5 betapacks installed at my place, running off a 3ph32 supply and controlled by a Leapfrog. Everything is running safely within it's limits and the actual draw is tiny, maybe no more than 2kw across the phases at any one time. After 3 weeks of working perfectly, the other day they starting making a weird noise after powerup, that is to say it sounds like a washing machine on a slow cycle ie not a constant drone. The mains meters fine, the distro says all is fine, the betapacks look happy and everything works as it should except this loud noise. Increase or decreasing the load makes no difference and we've even repatched to no avail. Any ideas?

burningbush Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 25 May 2009 Location: Pictland Status: Offline Points: 5897	Post Options Post Reply Quote burningbush Report Post Thanks(0) Quote Reply Posted: 02 August 2014 at 3:17pm
	Loose coil or transformer somewhere?
	music is the message

norty303 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8806	Post Options Post Reply Quote norty303 Report Post Thanks(0) Quote Reply Posted: 02 August 2014 at 3:24pm
	Occam's Razor? You haven't left a washing machine on slow cycle have you?
	My laser stuff: Frikkin Lasers

burningbush Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 25 May 2009 Location: Pictland Status: Offline Points: 5897	Post Options Post Reply Quote burningbush Report Post Thanks(0) Quote Reply Posted: 02 August 2014 at 3:51pm

	music is the message

James Tengo Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 09 May 2008 Location: Brighton Status: Offline Points: 2155	Post Options Post Reply Quote James Tengo Report Post Thanks(0) Quote Reply Posted: 02 August 2014 at 9:55pm
	Which version of the betapack? Is it one of them or all of them?

SamV Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 21 October 2008 Location: London Status: Offline Points: 8711	Post Options Post Reply Quote SamV Report Post Thanks(0) Quote Reply Posted: 03 August 2014 at 11:46pm
	Never had a chance to unplug and find if it was all or just one but the whole lot being stripped out now anyways. Unsure which version it was.