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Chapter 2) 7SR158 Technical Manual
Chapter 2 - Page 10 of 16 ©2013 Siemens Protection Devices Limited
Instrument
Description
FREQUENCY METERS
to view
This is the sub-group that includes all the meters that are
associated with Frequency. TEST/RESET
allows access to this
sub-group.
Frequency 0.000Hz
Last Trip 0.000Hz
Displays the frequency of the last trip
VECTOR SHIFT METERS
to view
This is the sub-group that includes all the meters that are
associated with Vector Shift. TEST/RESET
allows access to
this sub-group.
78 Va
Last Trip Vb
Vc
Displays the phase shift
ROCOF METERS
to view
This is the sub-group that includes all the meters that are
associated with the Rate of Change of Frequency (ROCOF)
protection
81R ROCOF
Fine 0.000Hz/s
Coarse 0.000Hz/s
Direction None
ROCOF < 2 x setting, measurement more accurate but takes
longer to update
ROCOF 2 x Setting, measurement more coarse but also faster
81R ROCOF Last Trip
Fine 0.000Hz/s
Coarse 0.000Hz/s
Displays the ROCOF values from Last Trip
MAINTENANCE METERS
to view
This is the sub-group that includes all the meters that are
associated with Maintenance TEST/RESET
allows access to
this sub-group
CB Total Trips
Count 0
Target 100
Displays the number of CB trips experienced by the CB
CB Delta Trips
Count 0
Target 100
Displays the number of CB trips experienced by the CB
CB Trip Time
Time 0.0ms
Displays the circuit breaker trip time to open time. Measured from
CB auxiliary contacts.
GENERAL ALARM METERS
to view
This is the sub-group that includes all the meters that are
associated with the Binary inputs TEST/RESET
allows access
to this sub-group
General Alarms
ALARM 1 Cleared
Displays the state of General Alarm
General Alarms
ALARM 2 Cleared
General Alarms
ALARM 3 Cleared
General Alarms
ALARM 4 Cleared
General Alarms
ALARM 5 Cleared
General Alarms
ALARM 6 Cleared
DEMAND METERS
to view
This is the sub-group that includes all the meters that are
associated with DEMAND. TEST/RESET
allows access to this
sub-group
V Phase A Demand
Max 0.00V
Min 0.00V
Mean 0.00V
Displays the Voltage demand based on Va.
V Phase B Demand
Max 0.00V
Min 0.00V
Mean 0.00V
Displays the Voltage demand based on Vb.
Summary of Contents for 7SR158 Argus
Page 1: ...Answers for energy 7SR158 Argus Voltage and Frequency Relay Reyrolle Protection Devices ...
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Page 4: ...7SR158 Argus Contents ...
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