GE D90 Plus - Page 38

28 D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION
POWER SWING DETECT
Functions:...............................................................power swing block, out-of-step trip
Characteristic:......................................................mho or quadrilateral
Measured impedance: .....................................positive-sequence
Blocking and tripping modes:.......................two-step or three-step
Tripping mode:.....................................................early or delayed
Current supervision pickup:........................... 0.050 to 30.000 pu in steps of 0.001
Current supervision dropout:........................<98% of pickup
Forward reach: ....................................................0.10 to 500.00 ohms in steps of 0.01 (secondary ohms)
Reverse reach: .....................................................0.10 to 500.00 ohms in steps of 0.01 (secondary ohms)
Left and right blinders:.....................................0.10 to 500.00 ohms in steps of 0.01 (secondary ohms)
Impedance accuracy:.......................................±5%
Forward angles: ..................................................40 to 90° in steps of 1
Reverse angles: ...................................................40 to 90° in steps of 1
Angle accuracy:................................................... ±2°
Characteristic limit angles: ............................40 to 140° in steps of 1
Timers:.....................................................................0.000 to 65.535 seconds in steps of 0.001
Timing accuracy: ................................................±3% or 4 ms (whichever is greater)
PROTECTION FLEXLOGIC™
Programming: ......................................................Reverse Polish Notation with graphical visualization (keypad
programmable)
Lines of code:........................................................512
Internal variables:...............................................64
Supported operations: .....................................NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to
16 inputs), NAND (2 to 16 inputs), latch (reset-dominant),
edge detectors, timers
Inputs: ......................................................................any logical variable, contact, or virtual input
Number of timers: ..............................................32
Pickup delay:.........................................................0 to 60000 (ms, seconds, or minutes) in steps of 1
Dropout delay: .....................................................0 to 60000 (ms, seconds, or minutes) in steps of 1
PROTECTION VIRTUAL INPUTS
Input points: ..........................................................64
Programmability: ................................................self-reset or latched
PROTECTION VIRTUAL OUTPUTS
Output points: ......................................................96
Programmability:................................................output of a protection FlexLogic™ equation or input to a
protection FlexLogic™ equation
REMOTE INPUTS (IEC 61850 GSSE/GOOSE)
Input points: ..........................................................64
Remote devices:..................................................32
Default states on loss of
communications:........................................... on, off, latest/off, latest/on
Remote double-points status inputs:........16
REMOTE OUTPUTS (IEC 61850 GSSE/GOOSE)
Standard output points: ..................................32
User output points: ............................................32
TRIP OUTPUT
Functionality:........................................................collects trip and reclose input requests and issues outputs to
control tripping and reclosing
Communications timer delay: ......................0 to 65535 seconds in steps of 0.001
Evolving fault timer:...........................................0.000 to 65.535 seconds in steps of 0.001
Timing accuracy: ................................................±3% or 4 ms (whichever is greater)