KSB UPA - Three-Phase Motors with One Cable for DOL Starting

NOTE
Connect shielded motor leads with the exposed shield as short as possible and the
shield ends having contact over a large area. Interruptions of the shield must be
compliant with EMC
11)
. Observe the EMC instructions given by the equipment
manufacturers.
Three-phase (3~) motors with one cable for DOL starting
The 3 current-carrying conductors are designated U, V, W; the designation of the
earth conductor is PE. (See circuit diagram.)
L1
L2 L3
U
V
W
PE
PE
1
2
3
4
5
U
V
W
3~
Fig. 9: Circuit diagram: three-phase (3~) motors with one cable for DOL starting
1 Motor 2 Motor lead
3 Conductor marking 4 Control unit
5 Mains phases PE Earth conductor (green/yellow)
Three-phase (3~) motors with two parallel cables for DOL starting
The 6 current-carrying conductors of the two parallel power cables are designated
U1-1, V1-1, W1-1 and U1-2, V1-2, W1-2; the earth conductor is marked PE. (See circuit
diagram.)
The motors are wired in star (Y), and are fitted with two parallel cables.
11)
Electromagnetic compatibility
5 Installation at Site
UPA, UPZ, BSX
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