Differential Meters; Thermal Meters - Siemens 7SR18 Solkor Manual

1.8 Differential Meters

Instrument
--------------------
DIFFERENTIAL METERS
> to view
--------------------
Line Current
Ia
Ib
Ic
Remote Line Current
Ia
Ib
Ic
Relay Current
Ia
Ib
Ic
Remote Relay Current
Ia
Ib
Ic
Operate Current
Ia
Ib
Ic
Restrain Current
Ia
Ib
Ic

1.9 Thermal Meters

Instrument
--------------------
THERMAL METERS
> to view
Thermal Status
Phase A
Phase B
Phase C
Unrestricted ©2018 Siemens Protection Devices Limited
Description
This is the sub-group that includes all the meters that are associated with
Current TEST/RESET ► allows access to this sub-group
Displays 3 Phase Line currents Nominal RMS values & phase angles with
o
respect to PPS voltage.
0.000xIn ----
o
0.000xIn ----
o
0.000xIn ----
Displays 3 Phase Remote Line currents Nominal RMS values & phase
o angles with respect to PPS voltage.
0.000xIn ----
o
0.000xIn ----
o
0.000xIn ----
Displays Relay currents Nominal RMS values & phase angles with respect
to PPS voltage.
o
0.000xIn ----
o
0.000xIn ----
o
0.000xIn ----
Displays Remote Relay currents Nominal RMS values & phase angles with
o respect to PPS voltage.
0.000xIn ----
o
0.000xIn ----
o
0.000xIn ----
Displays the 3 phase operate currents' relevant to the Line differential
(87L) and highset differential (87HS) functions.
o
0.000xIn ----
o
0.000xIn ----
o
0.000xIn ----
Displays the 3 phase restrain currents relevant to the Line differential (87L)
function.
0.000xIn
0.000xIn
0.000xIn
Description
This is the sub-group that includes all the meters that are associated with
Thermal TEST/RESET ► allows access to this sub-group
Displays the thermal capacity
0.0%
0.0%
0.0%
7SR18 Instrumentation Guide
Page 9 of 14