Wilo Control EC-Fire, Инструкция по установке и эксплуатации

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62 WILO SE 06/2018
13.2 System impedance overview
NOTICE
In accordance with EN / IEC 61000-3-11
(see table below), the switchgear and pump with a
motor power of ... kW (column 1) are provided for
operation on a mains power supply with a system
impedance of Zmax at the house connection of
max. ... ohm (column 2) for a maximum number
of ... switch connections (column 3).
If the mains impedance and the number of switch-
ing operations per hour are greater than the values
given in the table, the switchgear with the pump
may lead to temporary voltage drops and also to
spurious voltage fluctuations (“flicker”) due to the
unfavourable mains conditions.
Therefore, measures may be necessary before the
switchgear with the pump can be operated on this
connection as intended. The necessary informa-
tion must be obtained from the local energy
supply company and the manufacturer.
NOTICE
The maximum number of switching operations per
hour specified in the table for each power is
determined by the pump motor and must not be
exceeded (adjust parameterisation of the control-
ler accordingly; see follow-up times, for example).
Power [kW]
(Column 1) System impedance [
Ω
]
(Column 2)
Switching operations per
hour (Column 3)
3~400/380 V
2-pole
Direct starting 0.37 2.629 6 – 30
0.55 1.573 6 – 30
0.75 0.950 6 – 18
0.944 24
0.850 30
1.1 0.628 6 – 12
0.582 18
0.508 24
0.458 30
1.5 0.515 6 – 12
0.431 18
0.377 24
0.339 30
2.2 0.321 6
0.257 12
0.212 18
0.186 24
0.167 30
3.0 0.204 6
0.148 12
0.122 18
0.107 24
4.0 0.130 6
0.094 12
0.077 18
5.5 0.115 6
0.083 12
0.069 18
7.5 0.059 6
0.042 12
11.0 0.037 6
0.027 12
15.0 0.024 6
0.017 12