Page 206 - Practical Power System and Protective Relays Commissioning

TABLE 18.5.1 90 Degrees Connection 45 Degrees Maximum Torque Angle
Connections
Relay Current Voltage
R I R V YB
Y I Y V BR
B I B V RY

FIGURE 18.5.7 90 Degrees connection 30 degrees maximum torque angle.

TABLE 18.5.2 90 Degrees Connection 30 Degrees Maximum Torque Angle
Connections
Relay Current Voltage
R I R V YB
Y I Y V BR
B I B V RY