GE D90 Plus Instruction Manual page 45

CHAPTER 2: PRODUCT DESCRIPTION
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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
Lines of code:........................................................512
Internal variables:...............................................64
Supported operations: .....................................NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to
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
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
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)
programmable)
16 inputs), NAND (2 to 16 inputs), latch (reset-dominant),
edge detectors, timers
protection FlexLogic™ equation
control tripping and reclosing
SPECIFICATIONS
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