Metering And Monitoring Features - GE D90 Plus Instruction Manual

DEVICE OVERVIEW

Metering and monitoring features

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Figure 11: Circuit breaker monitoring example
Voltage, current, and power metering are built into the protection platform as a standard
feature. Current parameters are available as total waveform RMS magnitude, or as
fundamental frequency only RMS magnitude and angle (phasor).
Measured values include:
• 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.
Figure 12: Phasors display example
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION