8–56
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
BUS TRANSFER
CHAPTER 8: CONTROL
Bus Transfer
The Transfer scheme is intended for application to a set of three circuit breakers on a
Main-Tie-Main arrangement, two of which (Incomers 1 and 2) connect sources of electrical
energy to two busses which could be paralleled through the Bus Tie breaker. The normal
system configuration is with both incoming breakers closed and the bus tie breaker open.
The transfer scheme implemented in the 850 relay is known as Open Transfer, with an
“Open-before-Close” operation sequence. This means that the faulty incomer is removed
from service before the tie breaker is closed.
Summary of Contents for Multilin 850
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Page 135: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 41 ...
Page 151: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 57 ...
Page 153: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 3 59 ...
Page 439: ...CHAPTER 7 MONITORING FUNCTIONS 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL 7 19 ...
Page 644: ...11 20 850 FEEDER PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 11 METERING ...