To completely evaluate power usage in three-phase installations, the Metrel MI2893 Power Master XT Three-Phase Power Quality Analyser is an innovative instrument that can conduct a variety of tests and measurements. Together with measurements of active, reactive, and apparent power, it offers four-channel TRMS measurements of voltage and current with peak and crest factors. The Metrel MI2893's power measurement complies with IEEE 1459 and can be used for traditional vector or arithmetic methods. It is capable of measuring THD and TDD in addition to evaluating issues like flicker, imbalance, harmonics up to the 50th order, and other parameters on variable frequency drives. Additional choices encompass energy tracking, measuring inrush current, recording transients, power factor, and cos fi. The smart features of the Metrel MI2893, which have a sampling frequency of more than 1MHz, include range selection and smart clamp detection. The analyzer satisfies requirements such as IEC 61000-4-30 Class A and EN 50160 and can set up to seven alarms. Its 8GB SD card memory allows it to record power supply events including power surges and shutdowns (the micro SD card socket can support memory up to 32GB). It features brilliant color touchscreen with an easy-to-use interface, color-coded terminals, and Ethernet or USB port connectivity. A complete suite of Metrel PC SW PowerView3 software is included with the Metrel MI2893, enabling users to download, inspect, and analyze recorded data as well as produce expert reports. The analyzer is a good choice for continuous observation and works well for predictive maintenance, electrical system capacity verification, and troubleshooting. Cat IV 600V and Cat III 1000V, it can be powered by an external supply or six rechargeable batteries.
- There are five inputs.
Three-phase connection and nominal voltage range: (L-N) 50 … 1000V RMS
- 87 … 1370V (L-L)
The three-phase connection'
- s measuring range is 10% to 150% of the nominal voltage.
Single-phase connection measurement range: 10% to 110% of nominal voltage
Peak voltage during maximum transient: ±6 kV
IEC 61000-4-30 Class A accuracy is ±0.1% of nominal voltage.
Sampling rate: 1.7k samples per second @VFD (5Hz to 110Hz)
- 1.2k samples per second @ 400Hz
- 7k samples per second @ 50/60Hz, synchronized with main frequency
Main frequency range: 335.0 … 465.0Hz ±100mHz
- 42.5 … 69.0Hz ±10mHz (VFD).
inputs of current (AC &
- DC)
There are four inputs.
Measurement range: 3... 6000A RMS ±1.5% of m.v. (using A1227 &
- A1502 flex clamps).
Measurement range: 50mA − 12000A RMS ± 0.5% of m.v. (using A1281 iron clamps).
Power = cos̸, PF, Q, S, and P
Range: Reliant on chosen clamps and voltage.
IEC 61557-12 Class 1 Accuracy
Vitality
Range: Reliant on chosen clamps and voltage.
IEC 62053-21 Class 1 (active)
- IEC 62053-23 Class 2 (reactive) concerning accuracy
Harmonies
Orders: DC 20th @ VFD (5-16Hz)
- DC … 13th @ VFD (16-33Hz)
- DC … 5th @ VFD (33-110Hz)
- DC … 50th @ 50/60Hz
- DC … 13th @ 400Hz
Voltage range: 0% to 20% of nominal
IEC 61000-4-7 Class 1 Interharmonics Accuracy
DC... 50th @ 50/60Hz
- DC... 20th @ VFD (5-16Hz)
- DC... 13th @ VFD (16-33Hz)
- DC... 5th @ VFD (33-110Hz) are the order of precedence.
Voltage range: 0% to 20% of nominal
IEC 61000-4-7 Class 1 Accuracy
Flasher
Range: 0.1–10
IEC 61000-4-15 Class F3 Main signaling accuracy
Voltage range: 0 to 15% of nominal
IEC 61000-4-30 Class A Unbalance Accuracy
Range of voltage: 0 to 5%
Range as of now: 0% to 20%
The temperature
Variation: -10°C to 85°C
Precision: ±0.5˚C
dips and swells
Voltage range: 10 to 150% of nominal
Accuracy: ±1 cycle
- ±0.2% of nominal voltage
Breaks
Variation: 0% - 10% of nominal voltage
Precision: ±1 cycle
Recording devices
Memory: up to 32GB with an 8GB microSD card
All-purpose recorder
Period of integration: 1s to 2h
Signals recorded: >
- 1000 (power, voltages, currents, harmonics, etc.)
The lowest, maximum, mean, and mean ON value for each interval, comprising:
Voltage fluctuations (rise, fall, and stop)
Personalized alarms (up to seven programmed alarms)
Signaling (with a choice of up to two frequencies)
Transients Inrush Duration: >
- 1 year (every 10 minutes, depending on the SD card)
recorder of waveforms
Duration: Maximum 60 seconds, with a 30-second pretrigger of the voltage and current waveform
- 200 records maximum.
Triggers include manual operation, voltage events, personalized alerts, inrush voltage or current, and time intervals.
Temporary recorder
Sample rate: 1 million samples per second, concurrently across all eight channels
Duration: Five voltage and current cycles
Triggers: Measurement of transient selection between L-N and L-GND
At the same time, the envelope and level triggers
Waveform and general recorders are operated simultaneously with transient records.
Set and go transient configuration
- preset configuration (high and low levels) for voltage and current trigger
Overall
4.3-inch color TFT display (480 x 272)
USB and Ethernet for communication
GPS receiver for time synchronization (A 1355)
Power supply: Six NiMh rechargeable batteries, size AA, or a power supply adapter
Cat IV / 600V is the overvoltage category
- Cat III / 1000V is for three phase connections.
1.1 kg in weight
Measurements: 230 x 140 x 80 mm
- thorough observation of three-phase systems
TRMS current and voltage measurement on four channels
A measurement of apparent, reactive, and active power
Measurement of drives with varying frequencies
Analysis of imbalance and flicker
tracking harmonics up to the fiftyth harmonic
tracks and captures power supply incidents
Keeps track of power occurrences, such blackouts
8GB of extendable SD card memory, USB, Ethernet, and RS-232 interfaces
Appropriate for continuous measuring
comes with the PC SW PowerView3 program
