保護電驛與突波防護
SEL 487B 87B保護電驛
The SEL-487B Relay provides bus current differential protection, circuit breaker failure protection, and backup overcurrent protection. The relay has 18 analog current inputs and three analog voltage inputs. For buses with no more than six terminals, use one SEL-487B in a single-relay application. For buses with seven to nine terminals, use two SEL-487B relays. For buses with up to 18 terminals, use three SEL-487B relays; each relay provides up to six dedicated zones of protection.
| 產品分類 | SEL保護電驛 |
|---|---|
| 應用需求 | 保護電驛與突波防護 |
| 品牌 | SEL |
型錄與手冊
- SEL-487B 型錄（英文，2014）PDF · 28 頁 · 1,072 KB
系列型錄可能包含不同規格，請核對完整型號與適用條件。