GE Multilin B90 Low Impedance Bus Differential System 10-310 APPLICATION OF SETTINGS 10.2 ZONING AND DYNAMIC BUS REPLICA1010.2ZONING AND DYNAMIC BUS REPLICA 10.2.1 NORTH BUS ZONEWith reference to the following diagram, the North bus differential zone is bounded by the following CTs: CT-1, CT-2 (if S-1closed), CT-3 (if S-3 closed), CT-4 (if S-5 closed), CT-5 and CT-8. The North bus protection should operate the followingbreakers: B-1, B-2 (if S-1 closed), B-3 (if S-3 closed), B-4 (if S-5 closed), B-5 and B-7.Figure 10–3: NORTH BUS ZONE10.2.2 SOUTH BUS ZONEThe South bus differential zone is bounded by the following CTs: CT-2 (if S-2 closed), CT-3 (if S-4 closed), CT-4 (if S-6closed), CT-6 and CT-7. The South bus protection should operate the following breakers: B-2 (if S-2 closed), B-3 (if S-4closed), B-4 (if S-6 closed), B-6 and B-7.Figure 10–4: SOUTH BUS ZONE836733A1.CDRNORTH BUSSOUTH BUSCT-7CT-8B-7B-5B-6CT-5CT-6S-5S-6B-4CT-4S-3S-4B-3CT-3S-1S-2B-2CT-2CT-1B-1C-1 C-2 C-4C-3 C-5836734A1.CDRNORTH BUSSOUTH BUSCT-7CT-8B-7B-5B-6CT-5CT-6S-5S-6B-4CT-4S-3S-4B-3CT-3S-1S-2B-2CT-2CT-1B-1C-1 C-2 C-4C-3 C-5
