Name
Type
Description
REMOTE
BOOLEAN
Control remote
ALL
BOOLEAN
Control all
BEH_BLK
BOOLEAN
Logical device LD0 block sta-
tus
BEH_TST
BOOLEAN
Logical device LD0 test sta-
tus
3.6
Nonvolatile memory
In addition to the setting values, the merging unit can store some data in the
nonvolatile memory.
• Up to 1024 events are stored. The stored events are visible in WHMI and Event
viewer tool in PCM600.
• Circuit breaker condition monitoring
• Latched alarm LEDs' statuses
• Trip circuit lockout
• Counter values
3.7
Sensor inputs for currents and voltages
This chapter gives short examples on how to define the correct parameters for
sensor measurement interfaces.
Sensors can have correction factors, measured and verified by the sensor
manufacturer, to increase the measurement accuracy. Correction factors
are recommended to be set to the relay. Two types of correction factors
are available for voltage and current (Rogowski) sensors. The Amplitude
correction factor is named
Amplitude corr. A(B/C) and Angle correction
factor is named
Angle corr A(B/C). These correction factors can be found
on the Sensor's rating plate and/or sensor routine test protocol. If the
correction factors are not available, contact the sensor manufacturer for
more information.
Figure 21: Example of ABB Rogowski current sensor KECA 80 D85 rating plate
Basic functions
1MRS758407 C
58
SMU615
Technical Manual
Summary of Contents for Relion SMU615
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