Hardware Specifications - GE D90 Plus Instruction Manual

SPECIFICATIONS

Hardware specifications

34
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
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION