MEWOI1570 Multifunctional High and Low Voltage CT Ratio Tester

MEWOI1570 Multifunctional High and Low Voltage CT Ratio Tester

  • Main Features:: Voltage range: 0V ~ 600V Small current clamp range: 0A ~ 10A Flexible current clamp Range: 0A~3000A High voltage current clamp Range: 0A~600A Variable ratio range: 1~9999 Phase range: 0~360° Frequency range: 45Hz~65Hz Active power range: 0W~1800kW Reactive power range: 0Var~1800kVar Power factor range: -1.0000~1.0000 Harmonic measurement: 2~31 times Current clamp wireless transmission distance: 40m Data storage: 2000 groups
  • Model No.:: MEWOI1570
  • Name:: MEWOI1570 Multifunctional High and Low Voltage CT Ratio Tester

Contact Us for QuotationEmail:464560351@qq.comWhatsapp: +8618620373879

Product introduction

MEWOI1570 multifunctional high and low voltage CT transformation ratio tester is a power testing product carefully designed by our company. It is mainly used for online measurement of primary current, secondary current, transformation ratio, ratio difference, Angle difference, phase/polarity judgment. This instrument can also measure power parameters such as voltage, current, leakage current, phase, frequency, active power, reactive power, power factor, and harmonics of the power system. It can also display voltage and current waveforms. The harmonics of AC signals contain rate and waveform distortion rate.

This instrument is composed of handheld terminal, small current clamp, flexible current clamp, high voltage current clamp, test line, high voltage insulation rod, PC software and so on. The handheld terminal adopts a 5-inch touch color screen, all test results are displayed on the same screen, and the operation is convenient. It has a USB interface to upload the test records to the computer. It has a Bluetooth communication function, and the measurement results can be viewed on the mobile phone. The primary current is measured with flexible current clamps or high-voltage current clamps, and the secondary current is measured with high-precision small current clamps. Flexible current clamps are especially suitable for low-voltage busbars and other places where large current clamps are inconvenient to clamp. High-voltage current clamps can be connected to insulating rods for current measurement of high-voltage lines below 60kV. High-voltage current clamps have a unique automatic plug-in structure. By pressing or withdrawing the insulating rods, it is convenient to clamp or evacuate the tested wires to ensure the safety of operators. . The instrument has two measurement modes, wired or wireless, which can be used in various test sites, and the transmission distance of the wireless test mode is up to 40 meters.

    MEWOI1570 multifunctional high and low voltage CT transformation ratio tester can not only be used for transformation ratio measurement, phase measurement and power measurement, but also can be used as clamp ammeter, clamp power meter, high voltage clamp ammeter, and can be widely used in substations. Power plants, power inspection departments, industrial and mining enterprises, inspection stations, and electrical maintenance departments conduct current detection, anti-stealing electricity, and field electrical work.

Features

1. The instrument consists of a handheld host, small current clamps, flexible current clamps, high-voltage current clamps, insulating rods, voltage test lines, etc.

2. The host adopts 5-inch touch color screen, Chinese interface, easy to operate, and the measurement parameters are displayed on the same screen.

3. The flexible current clamp, high-voltage current clamp and the host adopt two measurement modes of wireless communication and wired connection.

4. Real-time display of the histogram of harmonic components, voltage and current waveforms, and distortion rates.

5. With GPS positioning function.

6. With USB interface and host computer software, the test results can be uploaded to the computer for data analysis and historical record query.

7. With bluetooth function, install the APP to test and view the test results on the mobile terminal

Technical parameter

1. Benchmark conditions

Amount of influence

Baseline conditions

working conditions

Remark

ambient temperature

23℃±5℃

-15℃~50℃


environment humidity

40%~60%

<80%


Sine wave distortion

≤1%

≤3%


signal frequency

50Hz±5Hz

45Hz~65Hz


Instrument working voltage

7.4V±0.5V

7.4V±1V


Angle difference

test

voltage amplitude

100±25V

0V~600V


Small current clamp I1 current amplitude

5A±0.2A

0mA~10A


Flexible Current Clamp I2 Current Amplitude

1000A±30A

0.0A~3000A


High Voltage Current Clamp I3 Current Amplitude

300A±3A

0.0A~600A


External electric field, magnetic field

should be avoided

Tested wire position

The tested wire is in the center of the jaws


2. Basic errors and performance indicators under benchmark conditions

Measurement parameters

Measuring range

resolution

tolerance scope

Voltage

0V~20V

0.001V

±0.3%FS

20V~200V

200V~600V

Small Current Clamp I1

0A~2A

0.1mA

±0.3% of reading ±0.2%FS

2A~10A

Flexible Current Clamp I2

0A~30A

0.01A

±0.5% of reading ±0.5%FS

30A~300A

300A~3000A

High Voltage Current Clamp I3

0A~200A

0.001A

±0.3% of reading ±0.2%FS

200A~600A

frequency

45Hz~65Hz

0.0001Hz

±0.05Hz

phase

0~360°

0.1°

±3°

Ratio

1~9999

1

----

power factor

-1.0000~1.0000

0.0001

----

active power

0W~1kW

0.1mW

±0.3%FS

1kW~1800kW

0.1W

reactive power

0Var~1kVar

0.1 mVar

±0.3%FS

1kVar~1800kVar

0.1Var

harmonic

2~31 times



Note: The measurement error under working conditions is not more than twice the reference condition


3. Technical parameters

Host power

DC 7.4V 5200mAh rechargeable lithium battery

Current clamp power supply

DC 7.4V 600mAh rechargeable lithium battery

display mode

5 inch touch color screen

Handheld Terminal Size

210mm×129mm×68mm

Small Current Clamp Size

Jaw size: Φ8mm; Overall size: 137mm×40mm×19.5mm

Flexible Current Clamp Dimensions

Jaw size: Φ200mm; Overall size: 200mm×245mm×13mm

High Voltage Current Clamp Dimensions

Jaw size: Φ48mm; Overall size: 255mm×84mm×39mm;

wireless communication

Between host and current clamp: 433 communication

Host positioning: GPS communication

Wireless transmission distance of current clamp

Wireless transmission distance 40m (in open environment)

Current Clamp Lead Length

about 5 meters

Instrument quality

About 7.5kg (including tool bag and insulation rod)

shift gear

fully automatic shift

data storage

2000 groups, press the SAVE button to automatically number and store (the data will not be lost when the power is turned off or the battery is replaced)

data review

Have

Automatic shut-down

About 15 minutes after starting up, the meter will automatically shut down

data upload

Equipped with USB interface and host computer software, the test results can be uploaded to the computer for data analysis and historical record query

bluetooth function

Yes, it supports the Android system. After installing the APP, you can perform test operations and view test results on the mobile terminal.

battery voltage

The host battery power display, when the battery voltage is lower than 10%, it will remind you to charge in time; when the battery voltage of the flexible current clamp and high voltage current clamp is lower than 10%, the indicator light is on

External interference

Avoid extremely strong electromagnetic fields; avoid 433MHz, 315MHz co-frequency interference

Working temperature and humidity

-15℃~50℃; below 80%Rh

storage temperature and humidity

-10℃~60℃; below 70%Rh

Insulation rod size

Φ32mm, 1m/section, 5 sections

insulation rod withstand voltage

110kV

Dielectric strength

Host and detector: AC1000V/rms (between shell and screw)



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