Name Type Values (Range) Unit Description
ER_FWD_ACM_A INT64 0...999999999 kVArh Accumulated forward
reactive energy value,
phase A
ER_FWD_ACM_B
INT64 0...999999999 kVArh Accumulated forward
reactive energy value,
phase B
ER_FWD_ACM_C
INT64 0...999999999 kVArh Accumulated forward
reactive energy value,
phase C
8.1.12.6 Technical data
Table 620: SPEMMXU Technical data
Characteristic Value
Operation accuracy At all three currents in range 0.10…1.20 x I
n
At all three voltages in range 0.50…1.15 x U
n
At the frequency f
n
±1 Hz
Active power and energy in range |PF| > 0.71
Reactive power and energy in range |PF| < 0.71
±1.5% for power (S, P and Q)
±0.015 for power factor
±1.5% for energy
Suppression of harmonics
DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
8.2 Disturbance recorder RDRE
8.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Disturbance recorder RDRE DR DFR
8.2.2 Functionality
The relay is provided with a disturbance recorder featuring up to 12 analog and 64
binary signal channels.The analog channels can be set to record either the waveform
or the trend of the currents and voltages measured.
The analog channels can be set to trigger the recording function when the measured
value falls below or exceeds the set values. The binary signal channels can be set to
start a recording either on the rising or the falling edge of the binary signal or on both.
By default, the binary channels are set to record external or internal relay signals, for
example, the start or trip signals of the relay stages, or external blocking or control
signals. Binary relay signals, such as protection start and trip signals, or an external
1MRS758755 A Section 8
Measurement functions
REC615 and RER615 591
Technical Manual
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