2 Engineering
2.3 Cable cross-sections
30
DC1-S…20…, DC1-S…OE1 Variable Frequency Drives
05/21 MN040058EN
www.eaton.com
2.2.2 Mains voltage and frequency
The standardized rated operating voltages (IEC 60038, VDE 017-1) of power
utilities guarantee the following conditions at the connection point:
•
Deviation from the rated value of voltage: maximum ±10 %
•
Deviation in voltage phase balance: maximum ±3 %
•
Deviation from rated value of the frequency: maximum ±4 %
The broad tolerance band of the DC1-S… variable frequency drive considers
the rated value for
European as (EU: U
LN
= 230 V, 50 Hz) and
American as (USA: U
LN
= 115 V/240 , 60 Hz) standard voltages:
•
115 V, 50 Hz (EU) and 115 V, 60 Hz (USA) at DC1-S1…,
110 V -10 % - 115 V +10 % (99 V -0 % - 126 V +0 %)
•
230 V, 50 Hz (EU) and 240 V, 60 Hz (USA) at DC1-S2…
200 V -10 % - 240 V +10 % (180 V -0 % - 264 V +0 %)
The permissible frequency range for all voltage categories is 50/60 Hz
(48 Hz - 0 % - 62 Hz + 0 %).
2.2.3 Reactive power compensation devices
Compensation on the power supply side is not required for the variable
frequency drives of the DC1-S… series. From the AC power supply network
they only take on very little reactive power of the fundamental harmonics
(cos
ϕ
~ 0.98).
2.3 Cable cross-sections
The mains cables and motor cables must be sized as required by local
standards and by the load currents that will be involved.
The PE conductor’s cross-sectional area must be the same as the phase
conductors’ cross-sectional area. The connection terminals marked with
must be connected to the earth-current circuit.
￫
In the AC supply systems with non-choked reactive current
compensation devices, current deviations can enable parallel
resonance and undefinable circumstances.
In the project planning for the connection of variable frequency
drives to AC supply systems with undefined circumstances,
consider using mains chokes.
NOTICE
The specified minimum PE conductor cross-sections
(EN 61800-5-1) must be maintained.
Summary of Contents for PowerXL
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