Phasor Measurement Unit - GE N60 Instruction Manual

CHAPTER 5: SETTINGS
The switch element has direct hard-coded connections to the IEC 61850 model as shown in the logic diagram. This allows
remote open/close operation of each switch, using either CSWI or XSWI IEC 61850 logical nodes. IEC 61850 select-before-
operate functionality, local/remote switch functionality, along with blocking open/close commands are provided. Note that
the dwell time for the IEC 61850 trip and close commands shown is one protection pass only. To maintain close/open
command for a certain time, do so either on the contact outputs using the "Seal-in" setting or in FlexLogic.

5.5.6 Phasor Measurement Unit

5.5.6.1 Menu
SETTINGS  SYSTEM SETUP  PHASOR MEASUREMENT UNIT
 PHASOR MEASUREMENT
 UNIT
The N60 is provided with an optional Phasor Measurement Unit (PMU) feature. This feature is specified as
a software option at the time of ordering. The number of PMUs available also depends on this option.
Using the order code for your device, see the order codes in chapter 2 for details.
5.5.6.2 UR synchrophasor implementation
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 N60 offers PMU features over two communication standards, IEC 61850-90-5 and IEEE C37.118. The figure shows
complete synchrophasor implementation.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
 PHASOR MEASUREMENT

 UNIT 1

 PHASOR MEASUREMENT

 UNIT 6
 AGGREGATOR

 UNIT 1

 AGGREGATOR

 UNIT 4
 IEC 90-5 MSVCB

 CONFIGURATION
See below
See page 5-142
See page 5-144
SYSTEM SETUP
5
5-125