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FW: [cdn-nucl-l] OPG's press notes on the recovery from the blackout



Julian:
The Bruce units were put in "poison prevent" mode at 60% power.  They can then be reconnected to the grid (when the latter is no longer "down") very quickly.  So was one Darlington unit.
But the other Darlington units and the 4 Pickering B units were put into a shutdown state (0 power) - as reported by OPG in their notes.  Then it takes at least about 40-48 hours to get over the xenon-poisoning mode and return to service.
 

Benjamin Rouben, FCNS
Manager, Reactor Core Physics, AECL SP
Tel: 905-823-9060 x 4550; Fax: 905-822-0567
e-mail: roubenb@aecl.ca
Cell: 416-526-2752

-----Original Message-----
From: JGinniver@aol.com [mailto:JGinniver@aol.com]
Sent: 2003/mm/21 4:43 PM
To: brownmj@aecl.ca
Cc: cdn-nucl-l@informer2.cis.McMaster.CA
Subject: Re: [cdn-nucl-l] OPG's press notes on the recovery from the blackout

It is interesting to contrast the effects on OPGs plants with those at Bruce.  According to a press release from Bruce on Friday 15th " Within hours of the incident, three of the four units at the Bruce B generating station were reconnected to the provincial grid and are currently being dispatched at the direction of the Independent Electricity Market Operator (IMO).

Together, Units 5, 7 and 8 have 2,400 MW of electricity available when called upon by the IMO. As a result of the disruption, Unit 6 did shut down and will be returned to service as quickly as possible."

Has anyone got any information on why Bruce was able to reconnect their units to the grid much more quickly than the units at Pickering and Darlington?

Regards,
       Julian Ginniver