Basler Electric BE1-700 - Manual (Page 129)

Voltage (BE1-700V)
The BE1-700 meters A-phase voltage, B-phase voltage, C-phase voltage, voltage across phases A and
B, phases B and C, and phases A and C. Negative-sequence voltage and three-phase zero-sequence
(residual) voltage are also metered. The VTP connection determines what is measured. For the auxiliary
voltage input, fundamental (Vx) and 3
rd harmonic voltages (V3X) are style options.
Current (BE1-700C)
Metered current includes A-phase current, B-phase current, C-phase current, neutral three-phase zero-
sequence current, and ground current. Other metered currents include negative-sequence current and
derived neutral current. All current measurements are auto ranging. Current is displayed in amps up to
9,999 A and then switches to kilo at 10.0 kA to 9,999 kA.
Frequency (BE1-700V)
Frequency is metered over a range of 10 to 75 hertz. If the measured frequency is outside this range, the
nominal system frequency will be displayed. Frequency is sensed from A-phase to Neutral for four-wire
sensing systems or from A-phase to B-phase for three-wire sensing systems. The frequency of auxiliary
voltage VX is also measured. Refer to Figure 5-2.
Figure 5-2. Relationship of Slip Frequency and Sync Angle to Synchroscope
9376700990 Rev M BE1-700 Metering 5-3