ABB REX 521 - Page 46

46
1MRS 751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
Table 4.2.1-8 Electromagnetic compatibility tests
The EMC immunity test level fulfills the requirements listed below
1 MHz burst disturbance test, class
III, IEC 60255-22-1
common mode 2.5 kV
differential mode 1.0 kV
Electrostatic discharge test,
class III
IEC 61000-4-2 and 60255-22-2
for contact discharge 6 kV
for air discharge 8 kV
Radio frequency interference test conducted, common mode
IEC 61000-4-6, IEC 60255-22-6
10 V (rms),
f = 150 kHz…80 MHz
radiated, amplitude-modulated
IEC 61000-4-3, IEC 60255-22-3
10 V/m (rms),
f = 80…1000 MHz
radiated, pulse-modulated
ENV 50204, IEC 60255-22-3
10 V/m,
f = 900 MHz
Fast transient disturbance test
IEC 60255-22-4 and IEC 61000-4-4
power supply 4 kV
I/O ports 2 kV
Surge immunity test
IEC 61000-4-5 and
IEC 60255-22-5
power supply 2 kV, common mode
1 kV, differential mode
I/O ports 2 kV, common mode
1 kV, differential mode
Power frequency (50 Hz)
magnetic field
IEC 61000-4-8
100 A/m continuous
300 A/m 1 to 3 s
Voltage dips and
short interruptions
IEC 61000-4-11
30%, 10 ms; 60%, 100 ms; 60%, 1000 ms
>90%, 5000 ms
Electromagnetic emission tests
EN 55011 and
EN 60255-25
conducted RF emission
(mains terminal)
EN 55011, class A,
EN 60255-25
radiated RF emission EN 55011, class A
EN 60255-25
CE approval Complies with
the EMC directive 89/336/EEC and
the LV directive 73/23/EEC.
EN 50263
EN 50081-2
EN 61000-6-2
EN 60255-6
Table 4.2.1-9 Data communication
Rear interface, connector X3.2 and
X3.3
Fibre-optic interface
protocol SPA, IEC_103, Modbus,
DNP 3.0
Also LON in the
REX 521 xxxxL versions.
Rear interface,
connector X3.1:9,10
RS-485 connection
protocol SPA, Modbus, DNP 3.0
Front panel optical RS 232 connection
protocol SPA
communication cable 1MKC 950001-1
SPA protocol baud rates 4.8/9.6/19.2 kbps
start bits 1
data bits 7
parity even
stop bits 1
IEC_103 protocol baud rates 9.6/19.2 kbps
data bits 8
parity even
stop bits 1