Basler Electric BE1-11g - Manual (Page 164)

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Table 58. Common System and Sensing Transformer Combinations
Phase VT
Connection
Phase
Rotation
Aux VT
Connection
Secondary
Phase Voltage
(Phase-Neutral)
Secondary
Aux Voltage
Angle
Compensation
3-wire ABC AB 69.3 120 0
°
3-wire ABC BC 69.3 120 240
°
3-wire ABC CA 69.3 120 120
°
3-wire ACB AB 69.3 120 0
°
3-wire ACB BC 69.3 120 120
°
3-wire ACB CA 69.3 120 240
°
4-wire ABC AN 69.3 69.3 0
°
4-wire ABC BN 69.3 69.3 240
°
4-wire ABC CN 69.3 69.3 120
°
4-wire ABC AB 69.3 120 30
°
4-wire ABC BC 69.3 120 270
°
4-wire ABC CA 69.3 120 150
°
4-wire ACB AN 69.3 69.3 0
°
4-wire ACB BN 69.3 69.3 120
°
4-wire ACB CN 69.3 69.3 240
°
4-wire ACB AB 69.3 120 330 °
4-wire ACB BC 69.3 120 90
°
4-wire ACB CA 69.3 120 210
°
AB ABC AB 69.3 120 0
°
AB ACB AB 69.3 120 0
°
BC ABC BC 69.3 120 0 °
BC ACB BC 69.3 120 0
°
AB ABC BC 69.3 120 240
°
AB ACB BC 69.3 120 120
°
AB ABC AN 69.3 69.3 330
°
AB ACB AN 69.3 69.3 30 °
Mode
Two operating modes are available: Phase Lock Loop and Anticipatory. In both modes, the BE1-11g
adjusts the frequency and voltage of the generator to match that of the bus (mains) at the proper relative
phase angle, and then connects the generator to the bus by closing the breaker. Anticipatory mode has
the added capability of compensating for the breaker closing time (the delay between when a breaker
close command is issued and the breaker contacts close). The BE1-11g controls the slip frequency
difference between the generator and the bus, and then calculates the advance angle that is required to
compensate for the breaker closure time.
Synchronization is accomplished using the Raise and Lower logic outputs for the voltage and frequency.
These logic outputs can be set to continuous or proportional. Continuous mode turns the required logic
output on until either it is in the synchronization window or overshoots it. Proportional mode toggles the
contacts based on the respective Pulse Width setting, Pulse Interval setting, and calculated error.
Synchronizer (25A) BE1-11g