SmartDCDC-01 / Data hall 01 / AC power quality217:46:51 ETDemo dataProduct overview

AC power quality

Measurement guide

Measure the supply. See what reaches the load.

Utility incomer · Path A · 480/277 V · 60 Hz · Three-phase wye · 3φ 4-wire · Simulated instruments · Read-only

Average line voltage481.4V RMSL–L · nominal 480 V
Supply frequency60.01HzNominal 60 Hz
Active power0.950MWUtility incomer
Highest voltage THD1.80%Orders 2–50 · fundamental basis

AC distribution path

UPS path A · Meter locations and conversion stages

Click a meter to change the measurement point. This is an illustrative conversion path with no switching controls. The gap between the incomer and the rectifier input is other load fed ahead of the UPS.
Normal double conversion
  3. DC link800.1VDC+/− bus · UPS interface
Battery, through DC/DCStandby · 94% state of charge
  • Normal power path
  • Bypass energized / unloaded
  • No power flowing

Click a meter to change the measurement point. This is an illustrative conversion path with no switching controls. The gap between the incomer and the rectifier input is other load fed ahead of the UPS.

Phase relationships

L1 voltage is the 0° reference. Vector lengths are normalized within the selected quantity.
0°90°180°−90°L1L2L3
  • L1 · 0.0°278.2 V
  • L2 · -119.9°277.6 V
  • L3 · 120.1°277.8 V

L1 voltage is the 0° reference. Vector lengths are normalized within the selected quantity.

Three-phase metering

RMS values and power at the selected meter

P is active power, S apparent power, Q₁ fundamental reactive power and DPF the fundamental displacement factor. True PF includes distortion. Phase currents are not summed as a load-current total.
PhaseV L–NI RMSPSQ₁True PFDPFTHD VTHD I
L1278.3 V1,165.2 A319.4 kW324.2 kVA54.0 kvar0.9850.9861.70%3.70%
L2277.7 V1,153.2 A315.4 kW320.2 kVA53.3 kvar0.9850.9861.80%3.90%
L3277.8 V1,150.6 A314.9 kW319.7 kVA53.3 kvar0.9850.9861.60%3.60%
Total——949.8 kW964.1 kVA160.6 kvar0.9850.986——

P is active power, S apparent power, Q₁ fundamental reactive power and DPF the fundamental displacement factor. True PF includes distortion. Phase currents are not summed as a load-current total.

Supply quality

Line voltages, sequence unbalance and neutral current

L1–L2
481.2V RMS
L2–L3
481.1V RMS
L3–L1
481.8V RMS
Voltage negative-sequence ratio|V₂| / |V₁| · sequence-based unbalance
0.10 %
Current negative-sequence ratio|I₂| / |I₁| · sequence-based unbalance
0.38 %
Neutral currentDerived from the instantaneous sum of phase currents
17.1 A RMS
Frequency range · 24 hMeter extrema
59.98–60.02 Hz
Neutral-to-PE / residual currentNeeds dedicated voltage and core-balance channels
Not instrumented
Bypass transfer permissiveVoltage presence alone does not establish transfer readiness
Not supplied

Energy & demand

Selected meter · trailing 24 hours

Derived from the DC historian using fixed conversion assumptions, not a metered billing register. These successive meters observe overlapping power flows, so their powers are not added together as separate facility loads.
Imported energy
24.03MWh

Positive-energy register

Exported energy
0.0kWh

Reverse flow recorded separately

Rolling 15-minute demand
945.5kW

5-minute sample boundaries

Peak 15-minute demand
1,060.8kW

Highest rolling window in 24 h

Derived from the DC historian using fixed conversion assumptions, not a metered billing register. These successive meters observe overlapping power flows, so their powers are not added together as separate facility loads.