ABB RELION 670 Series Technical Manual page 1292

Section 22
IED hardware
Description
Thermal withstand
Burden
Voltage inputs *)
Rated voltage U
Operating range
Thermal withstand
Burden
*) 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)
22.2.6.1 Introduction
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
LDCM
LR-LDCM
MR-LDCM
X21-LDCM
IRIG-B
RS485
22.2.6.2 Design
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.
1286
r
PC-MIP cards and PMC cards
PMC cards
SLM
OEM 1 ch
OEM 2 ch
Value
80 × I for 1 s
r
25 × I for 10 s
r
10 × I for 1 min
r
1.8 × I for 30 min
r
1.1 × I continuously
r
< 200 mVA at I
r
110 or 220 V
0 - 340 V
450 V for 10 s
420 V continuously
< 20 mVA at 110 V
< 80 mVA at 220 V
1MRK 502 066-UUS B
65 × I for 1 s
r
20 × I for 10 s
r
8 × I for 1 min
r
1.6 × I for 30 min
r
1.1 × I continuously
r
< 350 mVA at I
r
IP14285-1 v1
M13664-3 v3
M13666-3 v2
Technical manual