Digital Fault Recorder Features - GE D90 Plus Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION
Energy metering
Phasors
Sequence components metering

Digital fault recorder features

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
• Voltage phasors.
• Voltage symmetrical components.
• Current phasors.
• Current symmetrical components.
• Current true one-cycle RMS values.
• Active, reactive, and apparent power.
• Power factor (all power values per phase and total).
• Four-quadrant energy.
• Frequency.
• Synchrophasors.
• Data logger.
The measured signals are available for larger local display in the color LCD, accessible
remotely using communications.
The metered values for real, reactive, and apparent power, as well as power factor, are
displayed via the front panel interface or through the EnerVista UR
The metered values and phasor representations for phase current, ground current, phase
voltage, and auxiliary voltage are displayed via the front panel interface or through the
Plus
EnerVista UR Setup software.
The metered values and phasor representations for negative-sequence current and
voltage, positive-sequence current and voltage, and zero-sequence current and voltage
are displayed via the front panel interface or through the EnerVista UR
The powerful data acquisition and computing platform of the D90
resolution recording of power system parameters replacing the need for an expensive
stand-alone digital fault recorder (DFR), resulting in capital costs savings for the end user.
The digital fault recorder features a high-resolution transient recorder (fast scan), a long-
term disturbance recorder (slow scan), and a longer sequence of events with up to 8000
Figure 12: Phasors display example
DEVICE OVERVIEW
Plus
Setup software.
Plus
Setup software.
Plus
provides high-
23