MEWOI5700-Three Phase Digital Phase Volt-Ampere Meter

The MEWOI5700 Three Phase Digital Phase Volt-Ampere Meter is a well-developed full-automatic, multi-functional, digital, intelligent meter specifically designed for field testing,featuring high accuracy, high stability, low power consumption, easiness to use and so on. It can directly measure AC voltage and AC current without opening the measured circuit, phases between three voltages, three currents and phase between the voltage and current; in addition, the power factor and power of the circuit can be indirectly measured, it can also be used to distinguish three-phase sequence, transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc.

The MEWOI5700 Three Phase Digital Phase Volt-Ampere Meter has well designed shell mould made of newest material, attach with shakeproof, skidproof, high insulation sheath, has a 240dots×160dots LCD screen, all the test data display on the screen simultaneously, vector diagram indication, and looks exquisite and comfortable. Meter equipped with USB-RS232 interface, can store 1500 sets of data, through the system software upload stored data to the computer, implementing online real-time monitoring and historical inquires, dynamic display. Can read, save, report, print history data, etc.

The MEWOI5700 Three Phase Digital Phase Volt-Ampere Meter (Intelligent Three Phase Digital Phase Volt-Ampere Meter) applies to electric power, petroleum chemical industry, metallurgy, railway, and meteorology, industrial and mining enterprises, scientific research institutions, measurement sector and so on. Especially for the electricity billing system and relay protection system.

Influence Quantity

Base Condition

Working Condition

Remark

Ambient Temperature

23℃±1℃

-10℃～40℃

----

Ambient Humidity

40%～60%

＜80%

----

Signal Waveform

sine wave

sine wave

β=0.01

Signal Frequency

50HZ±1HZ

45HZ～65HZ

----

Meter Working Volt

9V±0.1V

9V±1.5V

----

Current Amplitude in Phase/Frequency/Phase SequenceTest

1A±0.2A

2mA～20A

----

Voltage Amplitude in Phase / Frequency/ Phase Sequence Test

100V±20V

10V～600V

----

Current Amplitude in Power / Power Factor Test

1A±0.1A

0.1A～400A

----

Voltage Amplitude in Power / Power Factor Test

200V±2V

30V～600V

----

External ElectricMagnetic Field

To be avoided

Measured Wire Position

Category

Measurement Range

Resolution

Intrinsic Error

Voltage

AC 0.0V～600V

0.01V

±(1.5%rdg+5dgt)

Current

AC 0mA～400A

1mA

±(1.5%rdg+5dgt)

Phase

0.0°～360°

0.1°

±3°

Active Power

0.0W～240kW

0.1W

±(3%rdg+5dgt)

Reactive Power

0.0VAR～240kVAR

0.1VAR

±(3%rdg+5dgt)

Apparent Power

0.0VA～240kVA

0.1VA

±(3%rdg+5dgt)

Frequency

45HZ～65HZ

0.01HZ

±(2%rdg+5dgt)

Power Factor

-1～+1

0.001

±0.03