Metering; Phasor Measurement Unit; Metering Source - GE D90 Plus Instruction Manual

D90
Chapter 11: Metering

Metering source

Phasor Measurement Unit

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Plus
Line Distance Protection System

Metering

This chapter outlines how to program the D90
Select the Settings > Metering > Metering Source menu to open the metering source
configuration window.
Figure 464: Metering source configuration settings
The following setting is available.
Name
Range: LINE (SRC 1), BKR 1 (SRC 2), BKR 2 (SRC 3)
Default: LINE (SRC 1)
This setting selects the source to use for calculating metered quantities available
through the front panel interface. For breaker-and-a-half schemes, select a source that
sums the current from both breakers to measure the total load on the transmission line.
Phasors are used in protection relays. When these phasors are referenced to a common
time base, they are referred to as synchrophasors. A vastly improved method for tracking
power system dynamic phenomena for power system monitoring, protection, operation,
and control can be realized when synchrophasors from different locations within the
power system are networked to a central location.
The Phasor Measurement Unit (PMU) menus allow specifying basic parameters of the
measurement process, such as signal source, ID, and station name, calibration data,
triggering, recording, and content for transmission on each of the supported PMU ports.
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metering features.
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