Harmonic Component Regulation In The Eu; General; Compliance With Iec/En 61000-3-2; Compliance With Iec/En 61000-3-12 - Fuji Electric FRENIC-HVAC User Manual

11.1.3

Harmonic Component Regulation in the EU

11.1.3.1

General

When general-purpose industrial inverters are used in the EU, the harmonics emitted from inverters to
the power lines are strictly regulated as stated below.
If an inverter whose rated input is 1 kW or less is connected to the public low-voltage power supply, it
is regulated by the harmonics emission regulation IEC/EN 61000-3-2. If an inverter whose input
current is 16 A or above and 75 A or below is connected to the public low-voltage power supply, it is
regulated by the harmonics emission regulation IEC/EN 61000-3-12.
Note that connection to the industrial low-voltage power lines is an exception. (See Figure 11.3.)
Medium-to-
low voltage
transformer
11.1.3.2

Compliance with IEC/EN 61000-3-2

The FRN001AR1-4U satisfies the IEC/EN 61000-3-2, so it can be connected to the public
low-voltage power supply.
11.1.3.3

Compliance with IEC/EN 61000-3-12

To bring the FRN001AR1-2U to FRN025AR1-2U and FRN001AR1-4U to FRN050AR1-4U
and FRN001AR1-5U to FRN060AR1-5U into compliance with the IEC/EN 61000-3-12, connect
them to the power supply whose short-circuit ratio Rsce is 120 or above.
Medium voltage
Public low-voltage
power supply
User B
User A
Inverter
The inverter connected here is
subject to the harmonics
regulation. If the harmonics
flowing into the power source
exceeds the regulated level,
permission by the local power
supplier will be needed.
Figure 11.3 Power Source and Regulation
User C
Medium-to-low
voltage transformer
Industrial
low-voltage
power supply
Inverter
The inverter connected
here is not subject to the
harmonics regulation.
11-8