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Digital Energy: Transformer Protection  
Digital Energy Bus Bus Protection
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Typical applications
Select a typical application to view the associated one line diagram, functions,
and product order codes.
Single Bus Bar, 8 Feeders or less, 1 Zone
Typical Functions  
Bus Differential
Lockout auxiliary
TOC and IOC (Phase, ground, neutral)


Functions   Typical Product Order Code
Typical Functions (Phase segregated bus differential)
+ check zone

+ check zone
Alternative (high Impedance
bus differential)
Alternative  B30-N03-APH-F8N-H6C-L8N-N6C-S8N-U6C-WXX
Auxiliary lockout relay  HEA61-A-RU-220-X2