무엇이 바뀌나
랙 안에서는 800VDC가 DC-DC 파워셸프를 거쳐 버스바 50V로 내려가고, 컴퓨트 트레이는 50V만 받습니다.
왜 바꾸나
전압을 올리면 같은 전력을 더 가는 구리선으로 보낼 수 있습니다. 구리 값과 공간, 변환 손실이 함께 줄어듭니다.
In English · Primary sources
800 VDC architecture (800 V HVDC)
The 800 VDC architecture converts medium-voltage AC grid power directly to 800 VDC at the data centre perimeter, eliminating intermediate AC/DC conversion stages and reducing conversion losses and component count.
NVIDIA describes the transition as moving from today’s AC infrastructure through hybrid architectures to fully native 800 VDC facilities, targeting 1 MW IT racks from 2027.
Korean suppliers sit across the resulting component chain — power conversion, UPS, busbars and switchgear — and domestic coverage treats 800 VDC primarily as a supply-chain opportunity.
For operators the consequence is the same everywhere: existing electrical plant cannot be carried over, which is why AI retrofits of conventional facilities rarely stop at the cooling system.
- NVIDIA — 800 VDC Architecture for AI Data Centers nvidia.com
- NVIDIA Technical Blog — 800 V HVDC architecture developer.nvidia.com