SecoGear Medium-voltage Switchgear Application and Technical Guide DET-882
iv ©2017 General Electric All Rights Reserved
Protective Scheme Selection................................................................................................................................................................................................ 40
Optional Equipment Selection ............................................................................................................................................................................................. 41
Protection ................................................................................................................................................................................................................................... 41
Indication ................................................................................................................................................................................................................................... 41
Control ......................................................................................................................................................................................................................................... 42
Dual-Source Incoming Lines (DSIL) ......................................................................................................................................................................................... 43
Basic Equipment Selection .................................................................................................................................................................................................... 43
Optional Equipment Selection ............................................................................................................................................................................................. 43
Protection ................................................................................................................................................................................................................................... 43
Indication ................................................................................................................................................................................................................................... 43
Control ......................................................................................................................................................................................................................................... 43
Location of Optional Devices ........................................................................................................................................................................................... 43
Bus Ties (BT) ......................................................................................................................................................................................................................................... 44
Basic Equipment Selection .................................................................................................................................................................................................... 44
Optional Equipment Selection ............................................................................................................................................................................................. 44
Protection ................................................................................................................................................................................................................................... 44
Indication ................................................................................................................................................................................................................................... 45
Control ......................................................................................................................................................................................................................................... 45
Bus Entrances (BE) ........................................................................................................................................................................................................................... 46
Basic Equipment Selection .................................................................................................................................................................................................... 46
Optional Indication Selection ............................................................................................................................................................................................... 46
Induction Motor Feeders (IMF) ................................................................................................................................................................................................... 46
Protective Scheme Selection................................................................................................................................................................................................ 46
Optional Equipment Selection (for IMFE, IMF1, IMF2) .............................................................................................................................................. 47
Protection ................................................................................................................................................................................................................................... 47
Indication ................................................................................................................................................................................................................................... 47
Control ......................................................................................................................................................................................................................................... 47
Location of Optional Devices ........................................................................................................................................................................................... 47
Reduced Voltage Starting ............................................................................................................................................................................................................ 49
Synchronous Motor Feeders (SMF) ......................................................................................................................................................................................... 49
Protective Scheme Selection................................................................................................................................................................................................ 49
Optional Equipment Selection (for SMF1 and SMF2) ............................................................................................................................................... 50
Protection ................................................................................................................................................................................................................................... 50
Excitation .................................................................................................................................................................................................................................... 50
Indication ................................................................................................................................................................................................................................... 50
Control ......................................................................................................................................................................................................................................... 50
Location of Optional Devices ........................................................................................................................................................................................... 50
Standard Breaker and Auxiliary Configurations .............................................................................................................................................................. 52
Standard Tie Breaker and Auxiliary Configurations ...................................................................................................................................................... 53
SECTION 6. Standard SecoGear Construction, Features, and Installation .............................................................................. 55
Documentation ................................................................................................................................................................................................................................. 55
Construction ....................................................................................................................................................................................................................................... 55
Indoor Equipment ...................................................................................................................................................................................................................... 55
Hardware........................................................................................................................................................................................................................................ 55
Breaker Compartments .......................................................................................................................................................................................................... 55
Visual Breaker Position Indication ................................................................................................................................................................................ 56
Auxiliary Compartments ........................................................................................................................................................................................................ 56
Compartment Doors ............................................................................................................................................................................................................ 56
Safety Interlocks ......................................................................................................................................................................................................................... 57
Secondary Disconnect Interlocking ............................................................................................................................................................................. 57
Safety Key Lock Provisions ............................................................................................................................................................................................... 58
Padlock for Open/Close Pushbutton (Optional) ..................................................................................................................................................... 59
Main Bus ......................................................................................................................................................................................................................................... 59
Secondary Control ..................................................................................................................................................................................................................... 59
Door-mounted Devices ...................................................................................................................................................................................................... 59
Equipment-mounted Devices ......................................................................................................................................................................................... 59
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