Grundfos SE - Stator Insertion

12.1 Stator insertion
Before stator insertion, perform stator resistance check according to the following:
Resistance test [2D]
Check stator resistance before inserting the stator into
the stator housing. Use 4-wire handheld measuring tool
to check the resistance of each phase according to the
figure:
1
U1
2
V1
3
W1
W2
6
5
4
V2
U2
3~
TM084257
Line - Line measuring points 1-4, 2-5, 3-6
Shortcut under test No shortcut
Nominal Line-Line resistance should be between: 30-450 [mΩ]
Recommended area temperature during measurement: 20 ± 2 °C
1. Fold the stator wires inside the middle of the stator housing, so they cannot touch the heated walls of the stator housing during the
insertion process.
2. Mount the orientation tool (A) on the stator housing (55), according to the image below.
55
A
TM084260
57
English (GB)