From: Flemming Videbaek (videbaek@rcf.rhic.bnl.gov)
Date: Wed Dec 25 2002 - 15:16:53 EST
-------- Original Message -------- Subject: 480 V transformer failure in 1000P From: Drees <drees@bnl.gov> Date: Wed, December 25, 2002 8:19 am To: Scheduling Physicist <schedphy@mail.pbn.bnl.gov> Good Morning! When I said I would keep you posted I had more progress reports in mind than this. Around 7:00 am this morning a 480 V transformer in 1000P bailed out :(, taking down all power in this building and preventing us from using AtR. The Site Supervisor has been called and a line crew is coming in. As you can imagine this can take a little longer on christmas day .... (my shift virtually just cancelled itself ;)). Last night we had some succesful 53x53 ramps in RHIC :) but earlier this morning ran into problems with the permit being pulled by the loss monitors during the ramp (i.e. too many losses above our threshold triggering a beam dump). That's why just before the transformer failure we ramped 6x6 in RHIC to storage energy. This beam is still in the machine (ramped to flattop) and is currently being used by PHENIX for timing purposes. We'll keep it as long as possible. As usual, I'll keep you posted. Have nice christmas day in any case! Angelika (wed afternoon) Hi, a real quick one for all those who are 'watching': the AtR power supply/transformer problem seems fixed and we are back in business :). We just injected Au beam and did a succesful mode switching to Blue. We'll continue our work with both beams. Enjoy christmas afternoon, Angelika -- Flemming Videbaek Brookhavne National Laboratory Physics Department tlf 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov
This archive was generated by hypermail 2.1.5 : Wed Dec 25 2002 - 15:20:23 EST