Yeah both Condensate Pumps and Heater Feedpumps are Electric Motor Driven. Their nomenclature varies from plant to plant. TVA calls them Hotwell Pumps and Condenstate Booster Pumps.
The flowpath at Fermi was as follows,
1: The Hotwell, it carried 4 minutes of water IIRC about 90,000 gallons.
2: 3 Condensate Pumps in Parallel. Each rated for 7 to 8 thousand gallons.
3: 7 Heat Exchangers. 4 SJAE Condensers, 2 Off Gas Condensers, 1 Gland Seal Condenser. These had a Bypass Valve maintaininng 24# DP across Heat exchangers..
4: 8 Precoat Type Condensate Filter Demins
5: The first three stages of Feedwater Heating (2 stages of LP Heating and a Drains Cooler)
6: 3 Electric Driven Heater Feed Pumps.
7: The next three stages of Feedwater Heaers.
8: Two Reactor Feed Pumps in Parallel. Each had a suction strainer. The Pumps COULD be bypassed but NEVER were the whole time I was there.
9: The last Stage of Feedwater Heating.
10: The Reactor.
During SULCV Operations and until the Big Valves on the outlet of the Feedpumps were open the flow path would be Condensate Pumps>Filter Demins> Heater FeedPumps> Suction Strainers of the Feedpumps> Through the feedpumps> Through a bypass line on the outlet of the feedpumps that led to the SULCV. Each Feedpump was capable of feeding on its own to about 70% power but that was ragged edge. IIRC correctly if a feedpump tripped the reactor would run back to a Recirc Flow equivalent to about 65% power. It knew this by whether the vessel level had reached Level 4 (I'm THINKING 193 inches or so) with either contacts on a feedpump indicating it was tripped OR less than a certain flow through a feedpump.
Also IIRC the Condensate system provided about 67% of the water for rat6ed feed flow, the other 33% came from the Heater Drains System. The #5 Heaters drained to Flash Tanks and 2 Heater Drains Pumps pumped about 5000 GPM each into the line between the #5 Heaters and the Feedpump Suction. I CAN tell you if one of those pumps goes away you can still safely get at least 98% power and have margin to a feedpump suction trip provided all other condensate system and heater drain pumps are running.
Also, if any heater feed pump or Condensate Pump tripped the remaining pumps would support 100% Power. We ran them at a LOT less than rated. Once I did some quick number crunching and figured if any of those pumps went away we could probably safely stay at about 95% power. The next day an engineer showed me a curve that showed I was correct.
I'll give you a bit of advice. KNOW the TRUE capabilities of your equipment, especially pumps. The trip of a pump might put you in a position where you don't want to stay long term BUT if you know what your equipment is capable of you'll have time to think things through.
A quick Thumb Rule I've always used. Once the plant is stabilized if you're about at least 25 to 50 pounds above your pump suction trips you're ok FOR NOW. 25 # is ragged edge low but it gives you time to think, call the boss and get a plan together for where you really want the plant to be.
Mike