End Fault Protection - GE B90 Instruction Manual
Low impedance bus differential
system
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- Instruction manual (510 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (474 pages)
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CHAPTER 5: SETTINGS
The Time Overcurrent (TOC) element is provided for backup protection with a choice of inverse time curves. The element is
enabled only when
PRODUCT SETUP B90 FUNCTION B90 FUNCTION
each CT input.
5.6.7 End fault protection
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) END FAULT PROTECTION 1(24)
END FAULT
PROTECTION 1
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TOC1 TD MULTIPLIER:
1.00
TOC1 RESET:
Instantaneous
TOC1 BLOCK:
Off
TOC1 TARGET:
Self-Reset
TOC1 EVENTS:
Disabled
Figure 5-82: Time overcurrent logic
EFP1 FUNCTION:
Disabled
EFP1 CT:
F1
EFP1 PICKUP:
1.200 pu
EFP1 BREAKER OPEN:
Off
EFP1 BKR DELAY:
0.400 s
EFP1 MANUAL CLOSE:
Off
EFP1 PICKUP DELAY:
0.040 s
Range: 0.00 to 600.00 in steps of 1
Range: Instantaneous, Timed
Range: FlexLogic operand
Range: Self-Reset, Latched, Disabled
Range: Disabled, Enabled
is set to "Protection". One TOC element is available per
Range: Disabled, Enabled
Range: Available current channels
Range: 0.020 to 30.000 pu in steps of 0.001
Range: FlexLogic operand
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic operand
Range: 0.000 to 65.535 s in steps of 0.001
GROUPED ELEMENTS
5
5-159
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