Table 15. Station communication link, fibre-optic
Connector
Fibre type
1)
Wave
length
Max.
distance
Permitted path
attenuation
2)
LC MM 62.5/125 μm
glass fibre core
1300 nm 2 km <8 dB
LC SM 9/125 μm 1300 nm 2-20 km <8 dB
ST MM 62.5/125 μm
glass fibre core
820-900 nm 1 km <11 dB
1) (MM) multi-mode fibre, (SM) single-mode fibre
2) Maximum allowed attenuation caused by connectors and cable together
Table 16. IRIG-B
Description
Value
IRIG time code format
B004, B005
1)
Isolation 500V 1 min.
Modulation Unmodulated
Logic level TTL Level
Current consumption 2...4 mA
Power consumption 10...20 mW
1) According to 200-04 IRIG -standard
Table 17. Lens sensor and optical fibre for arc protection
Description
Value
Fibre-optic cable including lens 1.5 m, 3.0 m or 5.0 m
Normal service temperature range of the lens -40...+100°C
Maximum service temperature range of the
lens, max 1 h
+140°C
Minimum permissible bending radius of the
connection fibre
100 mm
Table 18. Degree of protection of flush-mounted IED
Description
Value
Front side IP 54
Rear side, connection terminals IP 20
Motor Protection and Control 1MRS756890 D
REM615
Product version: 3.0 Issued: 2010-06-29
24 ABB
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