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General Information:

EP8410B The three-phase intelligent phase voltammeter is a multifunctional intelligent instrument designed for on-site testing. It consists of a host, current clamps (3), and test lines (4). The host uses a 3.5-inch true color LCD screen, graphical menu interface display, vector diagram instructions. The design of the small clamp head of the current clampis easy to operate, and it is very suitable for places with dense wiring. The instrument can measure three-phase AC voltage, current, phase between voltages,phase between currents, phase between voltage and current, frequency, phase sequence, active power, reactive power, apparent power, without opening the circuit under test. Power factor, current vector sum, identify the transformer wiring group, inductive, capacitive circuit, test the secondary circuit and bus differential protection system, read out the phase relationship between the CTs of the differential protection groups, check the correct connection of themeter Otherwise, the maintenance of line equipment, etc., provides a safe,accurate and convenient smart instrument for the electricity inspectors. It issuitable for electric power, petro chemical industry, metallurgy, railway,meteorology, industrial and mining enterprises, scientific research institutions, metrology departments, etc. Especially suitable for electric energy billing system and relay protection system.

TechnicalSpecifications:

1. Baseline conditions and working conditions

Item

Baseline conditions

Working conditions

Remark

Ambient temperature

23±1

-1040

/

Ambient humidity

40%60%

80%

/

Signal waveform

Sine wave

Sine wave

β=0.01

Signal frequency

50HZ±1Hz

45Hz65Hz

/

Working voltage

7.4V±0.5V

7.4V±1V

/

Current amplitude when measuring phase frequency phase sequence

1A±0.1A

1mA30A

Check general specifications for details

Voltage amplitude when measuring phase frequency phase sequence

100V±10V

1V600V

/

Current amplitude when measuring power factor

1A±0.1A

10mA30A

/

Voltage amplitude when measuring power factor

100V±10V

10V600V

/

External electric field, magnetic field

Should be avoided

The position of the test wire under test

The tested wire is at the approximate geometric center of the clamps


2. General specifications

Function

Simultaneously test the current, voltage, phase, frequency, phase sequence, active power, reactive power, apparent power, power factor, current vector sum in the three-phase 380V / 220V power system to determine the transformer wiring group, inductive, capacitive Circuit, test the secondary circuit and bus differential protection system, read out the phase relationship between the CTs of the differential protection groups, check the correctness of the wiring of the watt-hour meter, repair the line equipment, etc.

Power

DC 7.4V large-capacity rechargeable lithium battery, USB charging interface, continuous working for about 10 hours when fully charged.

Rated current

About 180mA Max

Display mode

3.5 inch true color LCD display

Meter size

LWH196mm×92mm×54mm

Clamp size

φ7.5mm×13mm

Sampling rate

About 3 times / sec

Measuring range

AC voltage: 0.00V 600V

AC current: 0.0mA 30A

Phase0.0°360.0°

Frequency45.00Hz65.00Hz

Active power0.0W12kW

Reactive power0.0VAR12kVAR

Apparent power0.0VA12kVA

Power factor-1+1

Current vector sum0mA60A

Resolution

VoltageAC 0.01V

CurrentAC 0.1mA

Phase0.1°

Frequency0.01Hz

Active power0.1W

Reactive power0.1VAR

Apparent power0.1VA

Power factor0.001

Current vector sum1mA

Precision

Under baseline conditions

Voltage±(0.5% measuring range)

Current±(0.5% measuring range)

Phase: ± 1 ° (Phase error under working conditions: ± 3 ° from 10mA to 30A; ± 5 ° below 10mA. When the current value is less than 5mA, in order to ensure that the current is accurately measured on the current phase, do not perform voltage measurement In the phase test of voltage to current, in order to ensure the accuracy of the measurement, the voltage needs to be not less than 5V and the current is not less than 5mA)

Active power: ± (1.0% of range)

Reactive power: ± (1.0% of range)

Apparent power: ± (1.0% of range)

Frequency: ± (1.0% of range)

Power factor: ± 0.03

Phase sequence

Normal phase: U1, U2, U3 or I1, I2, I3 cursor flashes sequentially from left to right

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