Schneider Electric 4000 manual MIN/MAX Values for REAL-TIME Readings, ms Real-Time Readings

Wye systems only.

Power Factor 3-Phase Total

Apparent Power

Per-Phase￿

3-Phase Total

Reactive Power

Per-Phase

3-Phase Total

Real Power Per-Phase

3-Phase Total

–0.010 to 1.000 to +0.010

0 to ± 3,276.70 MVA

0 to ± 3,276.70 MVA

0 to ± 3,276.70 MVAR

0 to ± 3,276.70 MVAR

0 to ± 3,276.70 MW

0 to ± 3,276.70 MW

Reportable Range

0 to 32,767 A

0 to 32,767 A

0 to 32,767 A

0 to 32,767 A

0 to 32,767 A

0 to 1,200 kV

0 to 1,200 kV

0 to 1,200 kV

0 to 1,200 kV

0 to 1,200 kV

63230-300-212	Chapter 4—Metering Capabilities
April 2001	Min/Max Values for Real-time Readings

MIN/MAX VALUES FOR REAL-TIME READINGS

The circuit monitor also has the capability of 100 ms updates. The 100 ms readings listed in Table 4–2can be communicated over MODBUS TCP and are useful for rms event recording and high-speed alarms.

Table 4–2: 100 ms Real-Time Readings

Real-Time Readings

Current Per-Phase Neutral Ground￿

3-Phase Average Apparent rms

Voltage

Line-to-Line, Per-Phase

Line-to-Line, 3-Phase Average

Line-to-Neutral, Per-Phase

Neutral to Ground￿￿

Line-to-Neutral, 3-Phase Average￿

When any one-second real-time reading reaches its highest or lowest value, the circuit monitor saves the value in its nonvolatile memory. These values are called the minimum and maximum (min/max) values. Two logs are associated with min/max values. The Min/Max Log stores the minimum and maximum values since the last reset of the min/max values. The other log, the Interval Min/Max/Average Log, determines min/max values over a specified interval and records the minimum, maximum, and average values for pre-defined quantities over that specified interval. For example, the circuit monitor could record the min, max, and average every 1440 minutes (total minutes in a day) to record the daily value of quantities such as kW demand. See Chapter 7—Loggingon page 99 for more about the Min/Max/Average log.

From the circuit monitor display you can:

• View all min/max values since the last reset and view their associated

￿￿dates and times. See “Viewing Minimum and Maximum Values from the Min/Max Menu” on page 39 for instructions.

• Reset min/max values. See “Resetting Min/Max, Demand, and Energy Values” on page 37 for reset instructions.

Using SMS you can also upload both onboard logs—and their associated dates and times—from the circuit monitor and save them to disk. For

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