PQube 3 meter · Treasure Island · Live instrument log

Power Quality

Every voltage sag, swell, transient, and interruption recorded by the island's power-quality meter, published as it happens. These are real instrument readings, not estimates and not outage reports. A brief sag is logged here as a sag, never as an outage.

Latest event
Voltage Sag · Sat, Sep 26, 2026, 1:18:54 PM PDT
Deepest dip
0.00% of nominal · Thu, Nov 23, 2023, 4:01:22 PM PST
Events logged
12
Monitor
Watching
Voltage Sag

Event magnitude

85.22%

of nominal voltage

Duration

0.017 s (about one 60 Hz cycle)

Trigger channel
L1-N
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Oscilloscope waveform captured during the voltage sag on Sat, Sep 26, 2026, 1:18:54 PM PDT
WAVEFORM CAPTURED BY THE METER · TAP TO VIEW FULL SIZE
RMS plot and per-channel readings
RMS voltage plot for the voltage sag on Sat, Sep 26, 2026, 1:18:54 PM PDT
Min / max readings (full window and event-only)
ChannelMinMaxMin (event)Max (event)
N-E0.07V0.07V0.07V0.07V
L1-N102.3V121.6V102.3V112.5V
L2-N120.3V133.7V127.7V133.7V
L3-N120.5V122.3V121.5V122.3V
L1-L2202.0V209.1V202.0V205.5V
L2-L3209.1V209.9V209.1V209.5V
L3-L1208.1V210.1V208.1V209.4V
L1Amp11.59A17.96A11.59A
L2Amp11.73A17.44A12.92A
L3Amp7.77A11.09A7.77A
NAmp6.85A14.07A8.77A
L6Amp4.880A5.819A4.880A
L7Amp4.834A5.774A4.834A
L8Amp2.406A3.987A2.406A
Frequency60.000Hz60.020Hz60.000Hz60.011Hz
Power3.429kW3.988kW3.429kW3.988kW
Alert

Event magnitude

0.00%

of nominal voltage

Duration

2.06 s

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

0.03%

of nominal voltage

Duration

1.82 s

Trigger channel
L2-L3
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

RMS plot and per-channel readings
Min / max readings (full window and event-only)
ChannelMinMaxMin (event)Max (event)
N-E0.07V0.11V0.07V0.11V
L1-N2.5V125.5V2.5V125.5V
L2-N0.1V119.7V0.1V119.7V
L3-N0.0V123.3V0.0V123.3V
L1-L20.1V213.7V0.1V213.7V
L2-L31.6V207.1V1.6V207.1V
L3-L11.7V217.6V1.7V217.6V
L116.31A16.40A16.31A16.38A
L212.49A12.62A12.51A12.62A
L319.93A20.23A19.93A20.23A
N10.04A10.24A10.04A10.24A
L60.000A0.000A0.000A0.000A
L70.000A0.046A0.000A0.046A
L83.356A3.723A3.356A3.723A
Frequency60.022Hz60.028Hz60.026Hz60.026Hz
Power-0.189kW5.733kW-0.189kW5.660kW
Voltage Sag

Event magnitude

83.01%

of nominal voltage

Duration

0.033 s (about one 60 Hz cycle)

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Voltage Sag

Event magnitude

74.48%

of nominal voltage

Duration

0.042 s (about one 60 Hz cycle)

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

0.00%

of nominal voltage

Duration

32.0 min

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

69.82%

of nominal voltage

Duration

0.050 s

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

0.00%

of nominal voltage

Duration

393.8 min

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

41.94%

of nominal voltage

Duration

0.042 s (about one 60 Hz cycle)

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

60.98%

of nominal voltage

Duration

0.083 s

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

57.85%

of nominal voltage

Duration

0.092 s

Trigger channel
Not recorded
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

Alert

Event magnitude

0.00%

of nominal voltage

Duration

4.77 s

Trigger channel
L1-N
Trigger threshold
90.0% of nominal
Nominal
120 / 208 V
Meter
P3001520

A brief dip below 90% of nominal voltage on one or more phases. The power stayed on; equipment may have flickered. A sag is a brief dip, not an outage: the lights may have flickered, but power stayed on.

RMS plot and per-channel readings
Min / max readings (full window and event-only)
ChannelMinMaxMin (event)Max (event)
N-E0.07V34.53V0.07V34.53V
L1-N0.0V123.8V0.0V123.8V
L2-N0.0V119.1V0.0V118.0V
L3-N0.0V119.2V0.0V119.0V
L1-L20.0V207.0V0.0V205.9V
L2-L30.0V206.6V0.0V205.4V
L3-L10.0V207.8V0.0V207.3V
L111.46A11.66A11.48A11.62A
L210.42A10.56A10.45A10.56A
L318.90A19.04A18.92A19.02A
N12.90A13.13A12.92A13.08A
L60.09A0.14AN/AN/A
L70.09A0.11AN/AN/A
L80.09A0.14AN/AN/A
Frequency0.000Hz59.997Hz59.994Hz59.996Hz
Power0.000kW4.737kW0.000kW4.704kW

How this log works

A Powerside PQube 3 power-quality meter (serial P3001520) installed at Treasure Island Wines monitors the island's 208 V three-phase service around the clock. When voltage moves outside its configured thresholds, the meter emails an event report with oscilloscope waveforms, and this page publishes it automatically.

Event categories are kept separate on purpose. A voltage sag is a dip that the lights ride through; an interruption means voltage fell to near zero. Conflating the two would inflate outage counts, so this log never does.

The meter is operated by Treasure Island Wines, which forwarded its event alerts to this project for publication as a public power-quality record. If you felt a flicker or lost power, report the outage so it can be matched against the instrument record.