Three-phase power tester

April 19, 2025

Three-phase power tester

Model No. AIP7931

■ Basic accuracy: ±0.1%.

■ Measurement bandwidth: 45Hz~65Hz.

■ Maximum Voltage: 600Vrms.

■ Maximum current: 50A, supports current transformer.

Main features

■ Three-phase: Supports 1P2W, 1P3W, 3P3W, 3P4W, 3V3A measurement modes.

■ High accuracy: Basic accuracy up to 0.1%.

■ Wide power: Measurable current 50A, power minimum resolution 0.01W.

■ Transducer: Ratio function, supports conventional I-I current transformers.

■ Threshold alarm: Thresholds and measurement thresholds for three-phase total voltage, current, and power can be set, with automatic upper and lower limit determination and alarm.

Product Applications

①Motor power

■ Power bandwidth 45Hz~65Hz

■ Current range 0~50A/Current sensor

②Performance evaluation of commercial electrical appliances, standby measurement

■ The current range, 50A, rate, and standby power can be measured

■ Minimum power resolution 0.01W

■ Automatically identifies appliance run/stop/standby status and selectively accumulates electrical energy.

Specification

Measurement channel	Three-phase (supports single-phase use)
Measurement parameters/functions	Single-phase: voltage U, current I, active power P, reactive power Q, apparent power S, power factor λ, phase angle Φ, voltage frequency fU, current frequency fI, electrical energy Wh, electrical quantity Ah, electrical (energy) timing Time Three-phase: voltage ΣU, current ΣI, active power ΣP, apparent power ΣS, reactive power ΣQ, power factor Σλ
Wiring Method	1P2W, 1P3W, 3P3W, 3P4W, 3V3A
signal input	Floating Input (Transformer Input)
Full-scale peak factor	3
Rated voltage range	600V
Voltage accuracy range	0.6~600V
Voltage resolution	0.1V
Rated range of current	50A
Current Accuracy Range	20mA~50A
Current resolution	0.001A
Power Factor Accuracy Range	± (0.1 to 1.0)
Power Factor Resolution	0.01
Voltage/current measurement accuracy	45Hz≤f≤65Hz	±(0.1%×displayed value+0.1%×range)
Active power measurement accuracy	45Hz≤f≤65Hz	±(0.1%×displayed value+0.1%×range)
Active power measurement range	0.44W~11kW@220.0V/相, PF=0.1~1.0
Maximum resolution of active power	0.01W
Frequency measurement range	45Hz~65Hz
Frequency measurement accuracy	±0.1 per cent x display value
Electrical energy measurement range	0 to 999999 MWh (resolution: 0.01 MWh)
Accuracy of electrical energy measurement	±0.2% x display value
Electrical energy timing range	9999 hours, 59 minutes, and 59 seconds
Data update cycle	0.5 / 1 / 2 / 5 [s]
Ratio range	1 to 5000
Alarm function	5 groups, total voltage, total current, total power upper/lower limits, threshold setting
control interface	Standard: RS-232; Optional: RS-485, switch quantity
Overall dimensions	213(W) x 132.5(H without feet) x 384.5(D without terminals) mm
Opening Size	213 x 132.5
Foot height	14.5 mm
Weight	Approx. 4 kg
Power Consumption	Approx. 10VA

n[Conditions] Temperature: 23±5°C, Humidity: 30%~75%RH, Input waveform: Sine waveform, Common mode voltage: 0V, Power factor λ: 1, Peak factor: 3. After preheating.

nAll accuracies plus 0.05% of the reading when the data update rate is 100ms.

nEffects of temperature changes:

Voltage accuracy plus 0.02%/°C of range, current accuracy plus 500 μA/°C Power accuracy plus the product of voltage and current effects.

Replacement(parts)

npower cable (of an appliance, etc)

nhot line

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