從 2N 說起
2N 架構把整套供電系統做兩份，A、B 兩路各自能扛下全部負載。好處是邏輯簡單；代價是裝置容量為負載的 2 倍，正常運轉時每一路都只用到一半。
DR4N3：四座模組、任三座就夠
分散式冗餘（Distributed Redundancy）把負載拆給多座電力模組。頭份第一期設置 4 座電力模組，每座配 2,500 kVA 變壓器、UPS 與 LFP 電池。容量設計成任意 3 座就能撐起全場，也就是「4N3」。裝置容量約為負載的 4/3 倍，比 2N 少用約三分之一的電力設備。
每座 IT 模組都有兩條獨立電源
六座 IT 模組各有 A、B 兩路供電，分別接到兩座不同的電力模組。我們刻意讓同一個 Pod 的兩座 IT 模組不共用任何電力模組，且每座電力模組在 A、B 兩層匯流排支架上各最多兩路，使負載平均分散。
設計為切換期間不斷電
當一座電力模組離線，受影響的 IT 模組改由另一路承接；LFP 電池提供 5 分鐘維持時間，涵蓋切換過程。電源端則有自有燃氣機組與台電兩個來源，經 24 kV 雙進線環路開關進場。
對客戶的意義
- 設計上無單點故障：任一電力模組或匯流排支架失效時，設計為由另一路持續供電。
- 可維護：電力模組可以輪流停機保養，不需要整場停電。
- 成本效率：更少的閒置設備，反映在託管價格上。
Starting from 2N
A 2N design builds the whole power chain twice; feeds A and B can each carry the full load. It is simple to reason about, but installed capacity is 2× the load and each side runs at half capacity in normal operation.
DR4N3: four blocks, any three suffice
Distributed redundancy spreads the load across several power blocks. Miaoli Phase 1 has four blocks, each with a 2,500 kVA transformer, UPS and LFP batteries, sized so that any three can carry the site: “4N3”. Installed capacity is about 4/3 of the load, roughly a third less power equipment than 2N.
Every IT module has two independent feeds
Each of the six IT modules has an A and a B feed landing on two different power blocks. The two modules in a pod never share a block, and each block carries at most two feeds on each of the A and B busway decks, so load stays evenly spread.
Designed for no break during transfer
When a block goes offline, affected IT modules pick up from their other feed; LFP batteries hold for 5 minutes, covering the transfer. Upstream, on-site gas generation and Taipower both arrive through dual 24 kV ring main units.
What it means for customers
- No single point of failure by design: the other feed is designed to carry the load through the loss of any power block or busway tray.
- Maintainable: blocks can be serviced one at a time without a site outage.
- Cost efficiency: less idle equipment shows up in the colocation price.
每一列是一座 IT 模組，A、B 兩路分別接到不同的電力模組；同一個 Pod（例如 ITM-11 與 ITM-12）不共用電力模組。Each row is an IT module whose A and B feeds land on different power blocks; the two modules of a pod (e.g. ITM-11 and ITM-12) never share a block.
需要完整規格？Need the full specification?
下載頭份第一期規格書，或直接與工程團隊討論您的部署。Download the Miaoli Phase 1 spec sheet, or talk to our engineers about your deployment.