Adjustable speed drive system for primary loop recirculation...

Details Adjustable speed drive system for primary loop recirculation... Adjustable speed drive system for primary loop recirculation...

2008-09-30

2008-09-30

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

C307S043000, C376S277000

Reexamination Certificate

active

11400211

ABSTRACT:
An adjustable speed drive system for a primary loop recirculation pump capable of keeping a PLR pump operating even if a single malfunction occurred in a main adjustable speed drive circuit portion. The drive system for the primary loop recirculation pump has a backup main adjustable speed drive circuit portion, and a breaker for switching between an incoming destination and an outputting destination of the backup main adjustable speed drive circuit portion. A control signal of an inverter control portion is switched to control an inverter included in the backup main adjustable speed drive circuit portion, and when a malfunction occurred in the adjustable speed drive main circuit, by switching to the backup main adjustable speed drive circuit portion, the primary loop recirculation pump of a nuclear reactor is continuously controlled and operated.

REFERENCES:
patent: 5610957 (1997-03-01), Tanikawa et al.
patent: 5896434 (1999-04-01), Yoshizumi et al.
patent: 6747882 (2004-06-01), Tanaka et al.
patent: 08-080061 (1996-03-01), None
U.S. Appl. No. 11/032,289, filed Jan. 10, 2005, M. Sugiyama et al.

Affiliated with

Also associated with

Rating

Adjustable speed drive system for primary loop recirculation... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable speed drive system for primary loop recirculation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable speed drive system for primary loop recirculation... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3935531