Cables Connection; Grounding; Electronic Voltage Regulator; Terminal Identification - WEG AG10 Serie Manual De Instalación, Operación Y Mantenimiento

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4.8.1.1.1 Cables connection

Para obtenção de um contato elétrico eficaz, a conexão
dos cabos de ligação nos pinos da placa de bornes deve
atender a seguinte configuração:
To obtain an effective electrical contact, the connection of
the cables to the terminal block pin must comply with the
following configuration:
Figure 4.7: Cables connection
Figure 4.7 legend:
1. Steel nut
2. Steel pressure washer
3. Flat steel washer
4. Flat brass washer
5. Brass nut
6. Flat brass washer
7. Flat steel washer
8. Grid cable connection terminal
9. Alternator cable connection terminal
ATTENTION
This setting is valid to connecting the cables
directly to the terminal block pins
The brass washers and nuts should not be
replaced with other with different material as
they may impair the connection of the cables.

4.8.1.2 Grounding

The alternator must always be grounded with a cable with
suitable section, according to IEC60034-1, using screwed
hole located in the rear part of the feet, according to
Figure 4.8.
Figure 4.8: Grounding hole
28 l Installation, operation and maintenance manual – Synchronous Alternator – AG10 line - Horizontal
Grounding screwed hole

4.8.1.3 Electronic voltage regulator

The electronic regulator is factory set and electrically
connected to the values of rated voltage and frequency of
the alternator.
To change the settings or connections, consult the
manual of the voltage regulator.
ATTENTION
When there is change in the main terminal
connections from the alternator to voltage
change, changing cable connections of the
sensing voltage of the regulator must also be
made according to the particular diagram.
To change the operating frequency of the
voltage regulator, refer to its manual.

4.8.1.4 Terminal identification


Main terminals
1 up to 12, N
– Stator phases connection cables

Terminals to connect the voltage regulator
E1 or E2
(brown) – Cables for single-phase sensing
voltage.
3 (yellow) and E3/4
(green) – Cable of the auxiliary coil
and common cable of the auxiliary coil and single-phase
sensing voltage.
3 (yellow) and 4
(green) – Cables of the auxiliary exciter
(if any)
R S T
(blue), (gray) e (orange) – Cables of the Three-
phase sensing voltage (if any).
N
(white) – Single-phase sensing voltage.
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