Alternator
F-
¹ Item not supplied by PEGASUS, please verify ratio specification (PAR/1 or PAR/5);
² if there is no Potentiometer connected, keep terminals short circuited;
³ 10A/250Vac switch to turn ON /OFF the regulator (Item not supplied by PEGASUS)
* Output line voltage from alternator in accordance to sensing class and the voltage level of the regulator power supply
(Table 4.1).
ATTENTION
1. Before connecting the regulator to the alternator, verify in the installation manual, the reference nominal
voltage.
2. When using an auxiliary coil, the connector E3/4, reference of the regulator circuit, should be the
mandatory common point between the coil and the alternator
3. If the reference voltage is not equal to the output voltage of the alternator, do not make the connections
without consulting the service department.
Auxiliary
Exciter
coil
F+
field
E1 E2
F+
F-
A- A+
Analog Input
from 170 to 280 Vca
from 320 to 600 Vca
from 520 to 640 Vca (*)
www.pegasustech.com.br
Parallelism CT ratio In/x¹
P2
P1
S2
S1
ON/OFF
key³
3
E3/4
S1
S2
GRT7-TH4 R2
JHz
DW CM UP
Digital Input
Alternator Voltage
Automatic Voltage Regulator – GRT7-TH4 R2 l 21
N
R
S
T
Single/parallel switch¹
Open: parallel;
Closed: single
Potentiometer for
external voltage
regulation¹ ² (5kΩ/3W)