GE D90 Plus Instruction Manual page 34

SPECIFICATIONS
26
BREAKER FAILURE
Mode:........................................................................ single-pole, three-pole
Current supervision: .......................................... phase current, neutral current
Supervision pickup:............................................ 0.001 to 30.000 pu in steps of 0.001
Supervision dropout:......................................... <98% of pickup
Supervision accuracy at 0.1 to 2.0 × CT:.. ±2% of rated
Supervision accuracy at >2.0 × CT:............ ±2.5% of reading
Time accuracy: .................................................... ±3% or 4 ms (whichever is greater)
BREAKER FLASHOVER
Operating quantity: ........................................... phase current, voltage, and voltage difference
Pickup level voltage:.......................................... 0.000 to 1.500 pu in steps of 0.001
Dropout level voltage: ...................................... 97 to 98% of pickup
Pickup level current: .......................................... 0.000 to 1.500 pu in steps of 0.001
Dropout level current:....................................... 97 to 98% of pickup
Level accuracy:.................................................... ±0.5% or ±0.1% of rated, whichever is greater
Pickup delay:......................................................... 0.000 to 65.535 seconds in steps of 0.001
Time accuracy: .................................................... ±3% or ±42 ms (whichever is greater)
Operate time:........................................................ <42 ms at 1.10 × pickup at 60 Hz
CONTACT INPUTS
Input rating:........................................................... 300 V DC maximum
On threshold: ........................................................ 70% of nominal voltage setting or 20 V (whichever is greater)
Off threshold:........................................................ 30% of nominal voltage setting or 15 V (whichever is greater)
Bounce threshold: .............................................. 50% of nominal voltage setting or 20 V (whichever is greater)
AZ threshold:......................................................... 80% of nominal voltage setting
Overvoltage threshold: .................................... 130% of nominal voltage setting or 285 V maximum
Maximum current:.............................................. 10 mA during turn on, 0.5 mA steady-state
Nominal voltage:................................................. 24 to 250 V
Input impedance: ............................................... active
Recognition time:................................................ <1 ms
Debounce timer: ................................................. 1.50 to 16.00 ms in steps of 0.25
Chatter detection timer:.................................. 1 to 100 seconds
Chatter state changes: .................................... 10 to 100
DISTURBANCE DETECTOR (50DD)
Type: ......................................................................... sensitive current disturbance detector
Range:...................................................................... 0.004 to 0.04 pu (twice the current cut-off level threshold)
FLEXCURVES™
Number: .................................................................. 4 (A through D)
Reset points:.......................................................... 40 (0 through 1 of pickup)
Operate points:.................................................... 80 (1 through 20 of pickup)
Time delay: ............................................................ 0 to 65535 ms in steps of 1
FLEXMATRIX
Principle: ................................................................. aggregates and conditions signals for tripping and auxiliary
Timing accuracy: ................................................ ±1 ms
FLEX STATES
Number: .................................................................. up to 256 logical variables grouped under 16 Modbus
Programmability: ................................................ any logical variable, contact, or virtual input
functions
addresses
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION