REACTOR PROTECTION-PROCESSOR-TO-REACTOR-TRIP BREAKER INTERFACE AND METHOD FOR OPERATING THE SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Mar 26, 2018
filing date -
Mar 27, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A method is provided of operating a reactor trip system, including: determining whether an automated shutdown of the nuclear plant has been demanded; energizing an interface relay to de-energize an undervoltage coil of a circuit breaker when the automated shutdown has been demanded; energizing an interface relay to energize a shunt trip coil of the first circuit breaker when the automated shutdown has been demanded; de-energizing the undervoltage coil when the manual shutdown has been demanded; energizing the shunt trip coil when the manual shutdown has been demanded; performing a check of a cyclical execution of processors in first and second divisions using separate watchdog timers in each division and determining whether watchdog timer signals have been de-energized in the first and second divisions; and de-energizing the undervoltage coil if the first and second watchdog timer signals have both been actuated.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully