ABB Relion 670 series, Technical Manual

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Description Value
Thermal withstand 80 × I
r
for 1 s
25 × I
r
for 10 s
10 × I
r
for 1 min
1.8 × I
r
for 30 min
1.1 × I
r
continuously
65 × I
r
for 1 s
20 × I
r
for 10 s
8 × I
r
for 1 min
1.6 × I
r
for 30 min
1.1 × I
r
continuously
Burden < 200 mVA at I
r
< 350 mVA at I
r
Voltage inputs *)
Rated voltage U
r
110 or 220 V
Operating range 0 - 340 V
Thermal withstand 450 V for 10 s
420 V continuously
Burden < 20 mVA at 110 V
< 80 mVA at 220 V
*) all values for individual voltage inputs
Note! All current and voltage data are specified as RMS values at rated frequency
22.2.6 Analog digital conversion module, with time synchronization
(ADM)
IP14285-1 v1
22.2.6.1 Introduction
M13664-3 v3
The Analog/Digital module has twelve analog inputs, 2 PC-MIP slots and 1 PMC slot. The PC-MIP
slot is used for PC-MIP cards and the PMC slot for PMC cards according to table 1005 . The OEM
card should always be mounted on the ADM board.
Table
1005: PC-MIP cards and PMC cards
PC-MIP cards PMC cards
LDCM SLM
LR-LDCM OEM 1 ch
MR-LDCM OEM 2 ch
X21-LDCM
IRIG-B
RS485
22.2.6.2 Design
M13666-3 v2
The Analog digital conversion module input signals are voltage and current from the transformer
module. Shunts are used to adapt the current signals to the electronic voltage level. To gain
dynamic range for the current inputs, two shunts with separate A\D channels are used for each
input current. In this way a 20 bit dynamic range is obtained with a 16 bit A\D converter.
Input signals are sampled with a sampling freqency of 5 kHz at 50 Hz system frequency and 6 kHz
at 60 Hz system frequency.
Section 22 1MRK 502 066-UUS B
IED hardware
1286
Technical manual