RQ-C-4874 (ESW)

Question 1

Unit 1 and Unit 2 were operating at 100% power.
Unit 1 and Unit 2 East ESW pumps are running
ESW Unit Crossties are open with ESW cooling supplies to the EDGs closed

Unit 2 turbine trips spuriously and Unit 2 RATs do not energize the 4kv buses
Unit 2 EDGs started and loaded. 4kv Bus T21D failed to energize

Which U2 EDG(s) has(have) cooling and why?

Answer 1

• AB EDG
• WMO does not have power