GE N60 Instruction Manual page 391
Network stability and synchrophasor measurement system
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- Instruction manual (666 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (602 pages)
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CHAPTER 5: SETTINGS
— Specifies the relay characteristic angle (RCA) for the sensitive directional power function. Application of
DIR POWER 1 RCA
this setting is threefold:
•
It allows the element to respond to active or reactive power in any direction (active overpower/underpower, and so on)
•
Together with a precise calibration angle, it allows compensation for any CT and VT angular errors to permit more
sensitive settings
•
It allows for required direction in situations when the voltage signal is taken from behind a delta-wye connected
power transformer and the phase angle compensation is required
For example, the active overpower characteristic is achieved by setting
setting
to "90°," active underpower by setting
DIR POWER 1 RCA
setting
to "270°."
DIR POWER 1 RCA
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Figure 5-122: Directional power element sample applications
to "0°," reactive overpower by
DIR POWER 1 RCA
to "180°," and reactive underpower by
DIR POWER 1 RCA
GROUPED ELEMENTS
5
5-231
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