ABB Relion SMU615 Product Manual page 14

Substation Merging Unit
SMU615
Product version: 1.0
Table 15. Station communication link, fiber optic
Connector
Fiber type
LC MM 62.5/125 or 50/125 μm
glass fiber core
1) (MM) multi-mode fiber, (SM) single-mode fiber
2) Maximum length depends on the cable attenuation and quality, the amount of splices and connectors in the path.
3) Maximum allowed attenuation caused by connectors and cable together
Table 16. Degree of protection of flush-mounted merging unit
Description
Front side
Rear side, connection terminals
Table 17. Sampled measured values accuracy
Description
Phase current
Residual current
Phase voltage
Residual voltage (calculated)
1) In the 80 A/0.150 V at 50 Hz sensor applications the maximum range depends on the application nominal:
....833 A (...31.237 mV/Hz) corresponds to 6000%I
833...1250 A (31.237...46.875 mV/Hz) corresponds to 4000%I
1250...2500 A /46.875...93.750 mV/Hz) corresponds to 2000%I
2500...4000 A (93.750...150.000 mV/Hz) corresponds to 1250%I
Table 18. Environmental conditions
Description
Operating temperature range
Short-time service temperature range
Relative humidity
Atmospheric pressure
Altitude
Transport and storage temperature range
1) Degradation in MTBF and HMI performance outside the temperature range of -25...+55 ºC
2) For merging units with an LC communication interface the maximum operating temperature is +70 ºC
14
1) Wave length
1300 nm
n
n
n
n
Typical max.
Permitted path attenuation
2)
length
2 km <8 dB
Value
IP 54
IP 20
Value
1)
20%...6000%I
n
Amplitude: 1% or ±0.003×I
n
Angle: ±2º
1%...5%I
n
Amplitude: 0.001×I
n
Angle: ±4º
5%...6000%I
n
Amplitude: ±1%
Angle: ±1º
80%...120% of U
n
Amplitude: ±0.5%
Angle: ±1º
1%...100% of U
n
Amplitude: ±0.5% or ±0.001×U
Angle: ±2º
Value
-25...+55ºC (continuous)
1)2)
-40...+85ºC (<16 h)
<93%, non-condensing
86...106 kPa
Up to 2000 m
-40...+85ºC
1MRS758420 B
3)
n
ABB