ABB SACE Emax 2 Installation, Operation And Maintenance Instructions page 61

Continued from the previous page
SZi(DFi)
TI / L1
TI / L3
TU1...TU2
UI / L1
The following is a key to the notes used in the wiring diagrams:
C)
E)
G)
59 | © 2014 ABB | 1SDH000999R0002 - L8569
SR Push-button or contact for electrical reset of the break contact S51
Input for Zone Selectivity for protection S or input in "inverse" direction for protection S
SZo(DFo) Output for Zone Selectivity for protection S or output in "direct" direction for protection D
Current transformer, phase L1
TI / L2 Current transformer, phase L2
Current transformer, phase L3
TI / N Current transformer on the neutral
Isolation voltage transformer (external to the circuit-breaker)
Uaux Auxiliary power supply voltage
Current sensor, phase L1
UI / L2 Current sensor, phase L2
UI / L3 Current sensor, phase L3
UI / N Current sensor on the neutral
UI / O SGR sensor
W2 Serial interface with the internal bus (Local Bus)
W9...W13 RJ45 connector for communication modules
W9R...W11R RJ45 connector for redundant communication modules
X Delivery connector for the auxiliary circuits of the circuit-breaker in withdrawable version
XB1...XB7 Connectors for the circuit-breaker applications
Delivery terminal box for the position contacts of the circuit-breaker in withdrawable
XF
version
XF1...XF2 Contact of the Ekip protection release for activation of the fans
XK1...XK3 Connectors for the auxiliary circuits of the Ekip protection release
XK7 Connector for the auxiliary circuits of the communication modules
XV Delivery terminal box for the auxiliary circuits of the circuit-breaker in fixed version
YC Closing coil
YO Opening coil
YO1 Opening coil for overcurrent
YO2 Second opening coil
YR Coil for electrical reset of the break contact S51
YU Under-voltage coil
Note Description
A) The auxiliary power supply for the Ekip release is obligatory
Always supplied with the Ekip Com module.
D) Always supplied with the motor for loading the closing springs (diagram 13)
Voltage transformer, mandatory in the case of external outlet sockets. External outlet
sockets, mandatory for systems with rated voltage greater than 690V.
The connections between the residual-current protection RC sensor and the poles of
connector X (or XV) of the circuit-breaker must be implemented with a screened two-pole
F)
cable with paired braided conductors (BELDEN 9696 paired type or equivalent), with
length no greater than 10m. The screen must be earthed on the circuit-breaker side.
With all the electronic protection releases equipped with a display interface with LSIG
protections, protection against earth faults (SGR) is available through a current sensor
positioned on the star centre of the MV/LV transformer. The connection between terminals
1 and 2 of the UI/O current transformer and the Ge+ and Ge- poles of connector X (or
XV) must be implemented with two-pole shielded stranded cable (BELDEN 9841 type or
equivalent) no more than 15 m in length.
ABB | SACE Emax 2
Continued on the next page
Accessories | 2 - Wiring diagrams