Automation Specifications - GE D90 Plus Instruction Manual

SPECIFICATIONS

Automation specifications

36
UNDERFREQUENCY
Elements:................................................................ 2
Minimum signal:.................................................. 0.10 to 1.25 pu in steps of 0.01
Pickup level:........................................................... 20.00 to 65.00 Hz in steps of 0.01
Dropout level: ....................................................... pickup level + 0.03 Hz
Level accuracy:.................................................... ±0.01 Hz
Time delay: ............................................................ 0 to 65.535 seconds in steps of 0.001
Timer accuracy: .................................................. ±3% or 4 ms (whichever is greater)
VT FUSE FAILURE SUPERVISION
Elements:................................................................ 1 per source
Monitored parameters:.................................... V_2, V_1, I_1
WATTMETRIC ZERO-SEQUENCE DIRECTIONAL
Measured power:................................................ zero-sequence
Elements:................................................................ 2
Characteristic angle:......................................... 0 to 360° in steps of 1
Minimum power:................................................. 0.001 to 1.200 pu in steps of 0.001
Pickup level accuracy:...................................... ±1% or 0.0025 pu (whichever is greater)
Hysteresis:.............................................................. 3% or 0.001 pu (whichever is greater)
Pickup delay:......................................................... definite time (0 to 600.00 seconds in steps of 0.01), inverse
Inverse time multiplier: .................................... 0.01 to 2.00 seconds in steps of 0.01
Time accuracy: .................................................... ±3% or ±20 ms (whichever is greater)
Operate time:........................................................ <30 ms at 60 Hz
AUTOMATION LOGIC
Number of lines of logic: ................................. 4096
Number of blocks: .............................................. 1
Edit and view capability: ................................. yes
Logic type:.............................................................. cyclic
Programming language:................................. proprietary
Execution rate:.....................................................50 ms
Variable types: .....................................................Boolean, IEEE floating point
Boolean operations: .......................................... NOT, XOR, OR, AND, NOR, NAND
Arithmetic operations:...................................... add, subtract, multiply, divide, negation, absolute value,
Control operations: ............................................ latch, timer, comparator, absolute timer functions
Boolean inputs:.................................................... any contact input, remote input, virtual input, or automation
Analog inputs: ...................................................... any FlexAnalog™ quantity
Virtual inputs: ....................................................... 128
Virtual outputs: .................................................... 255
Remote inputs:.....................................................64
Remote outputs: ................................................. 64
Remote devices:.................................................. 32
AUTOMATION VIRTUAL INPUTS
Input points: .......................................................... 128
Programmability: ................................................ self-reset or latched
time, or FlexCurve™
square root, exponent, logarithm, sine, cosine, tangent,
arcsine, arccosine, arctangent, natural logarithm, base 10
logarithm, modulo, ceiling, floor
logic operand
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION