Patent Number: 
Section: claims

1. An apparatus comprising:a nuclear reactor including a pressure vessel;a standoff assembly for an internal control rod drive mechanism (CRDM), the standoff assembly being disposed inside the pressure vessel and having a mounting flange with a power connector; anda power distribution plate disposed inside the pressure vessel and having a connection site configured to mate with the flange of the standoff assembly, the connection site including a power connector configured to mate with the power connector of the flange of the standoff assembly when the flange of the standoff assembly is mated with the connection site, power lines on or in the power distribution plate being arranged to deliver power to the power connector of the connection site;wherein the flange of the standoff assembly is mated with the connection site of the power distribution plate. 2. The apparatus of claim 1 wherein the power connectors comprise electrical power connectors. 3. The apparatus of claim 1 wherein the power connectors comprise hydraulic power connectors. 4. The apparatus of claim 1 wherein the standoff assembly has a top plate, the top plate configured to mate with the CRDM at an elevation above the connection site. 5. The apparatus of claim 1, further comprising:at least one aperture disposed adjacent the connection site of the power distribution plate; andat least one lead-in disposed on the mounting flange of the standoff assembly,wherein the at least one lead-in is slidably received in the at least one aperture so that the CRDM is properly aligned with the connector site. 6. An apparatus for mounting a control rod drive mechanism (CRDM) in a pressure vessel of a nuclear reactor, comprising:a standoff assembly disposed inside the pressure vessel and having a mounting flange with a power connector; anda power distribution plate disposed inside the pressure vessel and having a connection site configured to mate with the flange of the standoff assembly, the connection site including a power connector configured to mate with the power connector of the flange of the standoff assembly when the flange of the standoff assembly is mated with the connection site, power lines on or in the power distribution plate being arranged to deliver power to the power connector of the connection site;wherein the flange of the standoff assembly is mated with the connection site of the power distribution plate. 7. The apparatus of claim 6 wherein the power connectors comprise electrical power connectors. 8. The apparatus of claim 6 wherein the power connectors comprise hydraulic power connectors. 9. The apparatus of claim 6 wherein the standoff assembly has a top plate, the top plate configured to mate with the CRDM at an elevation above the connection site. 10. The apparatus of claim 6, further comprising:at least one aperture disposed adjacent the connection site of the power distribution plate; andat least one lead-in disposed on the mounting flange of the standoff assembly,wherein the at least one lead-in is slidably received in the at least one aperture so that the CRDM is properly aligned with the connector site. 11. An apparatus for mounting an electrical component in a pressure vessel of a nuclear reactor, comprising:a standoff assembly disposed inside the pressure vessel and having a mounting flange with a power connector; anda power distribution plate disposed inside the pressure vessel and having a connection site configured to mate with the flange of the standoff assembly, the connection site including a power connector configured to mate with the power connector of the flange of the standoff assembly when the flange of the standoff assembly is mated with the connection site, power lines on or in the power distribution plate being arranged to deliver power to the power connector of the connection site;wherein the electrical component further comprises a control rod drive mechanism that is mated with the standoff assembly, and the flange of the standoff assembly is mated with the connection site of the power distribution plate. 12. The apparatus of claim 11 wherein the power connectors comprise electrical power connectors. 13. The apparatus of claim 11 wherein the power connectors comprise hydraulic power connectors. 14. The apparatus of claim 11 wherein the standoff assembly has a top plate, the top plate configured to mate with the CRDM at an elevation above the connection site. 15. The apparatus of claim 11, further comprising:at least one aperture disposed adjacent the connection site of the power distribution plate; andat least one lead-in disposed on the mounting flange of the standoff assembly,wherein the at least one lead-in is slidably received in the at least one aperture so that the CRDM is properly aligned with the connector site.