GEA Bock HGZ Series, Руководство по сборке

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GB
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09726-09.2013-DGbF
6 | Electrical connection
ATTENTION! Failure to do this results in opposed rotary fields and results in
damage to the motor. After the motor starts up via partial winding
1, partial winding 2 must be switched on after a maximum delay of
one second . Failure to comply can adversely affect the service life
of the motor.
In the factory, the motor is switched for direct starting (YYY). For part winding start
∆
/ YYY, remove
the bridges and connect the motor feed cable according to the circuit diagram:
INFO! When testing the winding with resistance meter, please note that
part winding 1 and part winding 2 are internally connected.
6.3 Standard motor, design for direct or partial winding start
Designation on the name plate Sticker on the terminal box
∆
/ YYY
Compressors with this marking are suitable for direct or partial winding start. The motor winding is
subdivided into two parts: Partial winding 1 = 60% and part winding 2 = 40%. This winding division
reduces the start-up current needed for a part winding start to approx. 65% of that for a direct start.
INFO! A mechanical unloaded start with bypass solenoid valve is
not required.
400 V
Direktstart YY Teilwicklungsstart Y/YY
1V1 1W1 1U1
2W1 2V1 2U1
L3 L2 L1 L3 L2 L1
L3 L2 L1
1V1 1W1 1U1
2W1 2V1 2U1
Direct start YYY
Part winding start
∆
/YYY