Protection Flexlogic™ Operands - GE D90 Plus Instruction Manual
Line distance protection system
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Also See for D90 Plus:
- Instruction manual (694 pages) ,
- Communications manual (222 pages) ,
- Instruction manual (662 pages)
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CHAPTER 7: PROTECTION
Protection FlexLogic™ operands
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Block
Range: any FlexLogic™ operand or shared operand
Default: Off
Assertion of the operand assigned to this setting blocks operation of the FlexElement™.
Events
Range: Enabled, Disabled
Default: Disabled
This setting enables and disables the logging of FlexElement™ events in the sequence of
events recorder.
The logic for FlexElements™ is shown below.
Figure 293: Protection FlexElements™ scheme logic
The following protection FlexLogic™ operands are available for the D90
alphabetically by operand syntax. Some operands can be re-named by the user. These
include the names of breakers, contact inputs, virtual inputs, and virtual outputs. The
default names are indicated in the lists below.
Autoreclose operands
AR 1-P RIP......................................................Asserted when a single-pole autoreclose is in progress.
AR 3-P/1 RIP .................................................Asserted when a three-pole autoreclose is in progress via dead
AR 3-P/2 RIP .................................................Asserted when a three-pole autoreclose is in progress via dead
AR 3-P/3 RIP .................................................Asserted when a three-pole autoreclose is in progress via dead
AR 3-P/4 RIP .................................................Asserted when a three-pole autoreclose is in progress via dead
AR BKR1 BLK.................................................Asserted when reclosure of breaker 1 is blocked.
AR BKR2 BLK.................................................Asserted when reclosure of breaker 2 is blocked.
AR CLOSE BKR1...........................................Asserted when a close breaker 1 signal is issued.
AR CLOSE BKR2...........................................Asserted when a close breaker 2 signal is issued.
AR DISABLED................................................Asserted when the autoreclose element is disabled.
AR ENABLED .................................................Asserted when the autoreclose element is enabled.
AR FORCE 3-P TRIP....................................Asserted when a trip is forced to a three-phase trip.
AR INCOMPLETE SEQ................................Asserted when a the incomplete sequence timer times out.
time 1.
time 2.
time 3.
time 4.
PROTECTION FLEXLOGIC™
Plus
. They are listed
359
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