Analog, integer and double indication values are also
transferred through the EVENT function.
Generic communication function for Single Point
indication SPGAPC
SEMOD55713-5 v8
Generic communication function for Single Point indication
(SPGAPC) is used to send one single logical signal to other
systems or equipment in the substation.
Generic communication function for measured
values MVGAPC
SEMOD55872-5 v10
Generic communication function for measured values
(MVGAPC) function is used to send the instantaneous value
of an analog signal to other systems or equipment in the
substation. It can also be used inside the same IED, to
attach a RANGE aspect to an analog value and to permit
measurement supervision on that value.
Measured value expander block MVEXP
SEMOD52450-4 v8
The current and voltage measurements functions
(CVMMXN, CMMXU, VMMXU and VNMMXU), current and
voltage sequence measurement functions (CMSQI and
VMSQI) and IEC 61850 generic communication I/O
functions (MVGAPC) are provided with measurement
supervision functionality. All measured values can be
supervised with four settable limits: low-low limit, low limit,
high limit and high-high limit. The measure value expander
block MVEXP has been introduced to enable translating the
integer output signal from the measuring functions to 5
binary signals: below low-low limit, below low limit, normal,
above high limit or above high-high limit. The output signals
can be used as conditions in the configurable logic or for
alarming purpose.
Insulation supervision for gas medium function
SSIMG
GUID-0692CD0D-F33E-4370-AC91-B216CAAAFC28 v8
Insulation supervision for gas medium (SSIMG) is used for
monitoring the circuit breaker condition. Binary information
based on the gas pressure in the circuit breaker can be
used as input to the function. In addition, the function can
be used with an analog value of gas pressure and
temperature of the insulation medium and binary inputs. The
SSIMG function generates alarms based on the received
information.
Insulation supervision for liquid medium SSIML
GUID-3B1A665F-60A5-4343-85F4-AD9C066CBE8D v8
Insulation supervision for liquid medium (SSIML) is used for
monitoring the oil insulated device condition. For example,
transformers, shunt reactors, and so on. Binary information
based on the liquid level in the circuit breaker can be used
as input to the function. In addition, the function can be
used with an analog value of liquid level and temperature of
the insulation medium and binary inputs. The function
generates alarms based on the received information.
Circuit breaker monitoring SSCBR
GUID-E1FD74C3-B9B6-4E11-AA1B-7E7F822FB4DD v14
The circuit breaker condition monitoring function (SSCBR)
is used to monitor different parameters of the circuit
breaker. The breaker requires maintenance when the
number of operations has reached a predefined value. The
energy is calculated from the measured input currents as a
sum of I
y
t values. Alarms are generated when the calculated
values exceed the threshold settings. Each SCCBR function
instance is made to be used with a 1-pole, 1-phase breaker.
The function contains a block alarm functionality.
The supervised and presented breaker functions include
• breaker open and close travel time
• spring charging time
• number of breaker operations
• accumulated I
Y
t per phase with alarm and lockout
• remaining breaker life per phase
• breaker inactivity
Event counter with limit supervison L4UFCNT
GUID-13157EAB-1686-4D2E-85DF-EC89768F3572 v6
The Limit counter (L4UFCNT) provides a settable counter
with four independent limits where the number of positive
and/or negative flanks on the input signal are counted
against the setting values for limits. The output for each
limit is activated when the counted value reaches that limit.
Overflow indication is included for each up-counter.
Running hour-meter TEILGAPC
GUID-464FB24F-B367-446C-963A-A14841943B87 v2
The Running hour-meter (TEILGAPC) function is a function
that accumulates the elapsed time when a given binary
signal has been high.
The main features of TEILGAPC are:
• Applicable to very long time accumulation (≤ 99999.9
hours)
• Supervision of limit transgression conditions and rollover/
overflow
• Possibility to define a warning and alarm with the
resolution of 0.1 hours
• Retain any saved accumulation value at a restart
• Possibilities for blocking and reset
• Possibility for manual addition of accumulated time
• Reporting of the accumulated time
Fault current and voltage monitoring FLTMMXU
GUID-FD0A598B-7E78-4F49-B927-21D099DD91D4 v1
The fault current and voltage monitoring function monitors
and reports the voltage and current values on occurrence of
a trip event.
FLTMMXU function monitors and reports the following
values:
• Maximum peak current of individual phases during the trip
event
• Maximum RMS current of individual phases during the trip
event
• Maximum RMS current of all phases during the trip event
Line distance protection REL650
1MRK 506 384-BEN H
Version 2.2
Hitachi Power Grids
33
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