Hardware Specifications - GE D90 Plus Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION

Hardware specifications

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
METERING DISPLAY
Summary: ...............................................................displays present values of voltage, current, real power,
Phasors:...................................................................digital and graphical display of present voltage and current
Sequence components:...................................displays present magnitudes and angles of current and
Energy: .....................................................................four-quadrant display of accumulated energy
Demand:..................................................................present and peak demand values for current and real,
MAINTENANCE DISPLAY
Input and output status:..................................displays the current status of all contact inputs and outputs
AC CURRENT
CT rated primary: ................................................1 to 50000 A
CT rated secondary: ..........................................1 A or 5 A
Nominal frequency: ...........................................50 or 60 Hz
Relay burden:........................................................<0.2 VA secondary
Conversion range: ..............................................0.02 to 46 × CT rating RMS symmetrical
Current withstand:..............................................20 ms at 250 × rated, 1 second at 100 × rated, continuous at
AC VOLTAGE
VT rated secondary: ..........................................50.0 to 240.0 V
VT ratio:....................................................................1.00 to 24000.0
Nominal frequency: ...........................................50 or 60 Hz
Relay burden:........................................................<0.25 VA at 120 V
Conversion range: ..............................................1 to 275 V
Voltage withstand: .............................................continuous at 260 V to neutral, 1 minute per hour at 420 V
CONTACT INPUTS
Input rating:...........................................................300 V DC maximum
Selectable thresholds: ......................................24 to 250 V
Maximum current:..............................................10 mA during turn on, 0.5 mA steady-state
Recognition time: ................................................<1 ms
Debounce timer:..................................................1.50 to 16.00 ms in steps of 0.25
CONTACT OUTPUTS: CRITICAL FAILURE RELAY
Make and carry for 0.2 s:.................................10 A
Continuous carry: ...............................................6 A
Break at L/R of 40 ms:.......................................0.250 A at 125 V DC; 0.125 A at 250 V DC
Operate time:........................................................<8 ms
Contact material: ................................................silver alloy
CONTACT OUTPUTS: FORM-A RELAY
Make and carry for 0.2 s:.................................30 A as per ANSI C37.90
Continuous carry: ...............................................6 A
Break at L/R of 40 ms:.......................................0.250 A at 125 V DC; 0.125 A at 250 V DC
Operate time:........................................................<4 ms
Contact material: ................................................silver alloy
reactive power, power factor, and frequency on a per-phase
and total basis
magnitudes and angles
voltage sequence components
reactive, and apparent power
3 × rated
neutral
SPECIFICATIONS
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