Three-Phase Asynchronous Motor - Inverter; General Characteristics; Power Supply To Motor - Electrolux WE170V Service Manual

10.15

Three-phase asynchronous motor - Inverter

10.15.1 General characteristics

1. Main circuit board
2. Door safety interlock (with drum light micro-switch)
13. Inverter
14. Motor
X-Y-X = Motor windings

10.15.2 Power supply to motor

Three-phase power is fed by the inverter (13), which sends through the connectors 5-6-7 the three phases
to connectors 1-2-3 on the motor (nodes U-W-V), where the windings (Y-X-Z-) are connected.
The phase shift between the phases is 120° and peak voltage is 310 V.
It is possible to get an idea of the efficiency of
the motor by measuring the resistance of the
coils:

Coil y ohm 5.8 ±7% (contacts 2-3)

Coil x ohm 5.8 ±7% (contacts 1-2)

Coil z ohm 5.8 ±7% (contacts 1-3)
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