Electric Circuit Diagrams Scu; Single Line And Auxiliary Circuit Diagrams; Direct On Line Starter - Eaton Holec Clink II User Manual

CLINK II SCU MANAGER
9

ELECTRIC CIRCUIT DIAGRAMS SCU

9.1

Single line and auxiliary circuit diagrams

9.1.1

Direct On Line starter

Note
In figure 25 auxiliary current transformers are applied for current measurement. This is necessary for
measurement of nominal currents > 64 A. Nominal currents up to 64 A run directly through the MIU.
electric circuit diagrams scu
L1, L2, L3, N
X1
T1
F1
L1-N
F2
MIU
T2, T3
auxiliary circuit
K10 K11
LPS
K1
K1
X2: U-V-W
Figure 25: Single line diagram Direct On Line starter
SCU
T1: core balance transformer
T2, T3: current transformers
F1: fuse main circuit
F2: fuse auxiliary circuit
MIU: Measurement Interface Unit
SCU: Starter Control Unit
K1: Main Contactor
K10: off contact SCU
K11: on contact SCU
X1: incoming busbar
X2: outgoing cabling motor
LPS: Local Power Supply
version 5.0 75