Open 306 Close 304&306 closed Open 104 Close Open 106 104&106 closed Open 304 2A Close Open 306 Close 304&306 closed Note: E = Expected, A = Actual BB Protection/ CBF Scheme Check (1B & 2B ) Bus bar Bus bar Bay bus Protection 50/62 BF 86 CBF 86B zone 1B zone 2B disconnector zone Operate trip trip position E A E A E A E A Open 204 Close Open 206 204&206 closed Open 404 1B Close Open 406 Close 404&406 closed
306 Open Close 304&306 closed 2A 104 Open Close 106 Open 104&106 closed 304 Open Close 306 Open Close 304&306 closed Note: E = Expected, A = Actual BB Protection/ CBF Scheme Check (1B & 2B ) Protection zone Bay bus disconnector position 50/62 BF Operate 86 CBF 86B Bus bar zone 1B trip Bus bar zone 2B trip E A E A E A E A 1B 204 Open Close 206 Open 204&206 closed 404 Open Close 406 Open Close 404&406 closed
bbp___cbf_-_function_test.docx