NEVA-TEST 7202

Automatic installations for verification of electricity meters
Designed for verification< span style="color: #262626; background-color: #ecece4;"> and calibration of single-phase active and reactive electrical energy meters at the place of operation, as well as to control the metrological characteristics of the meters and the correctness of their connection without breaking the current circuits; measurement and registration of the main parameters of electrical energy in single-phase and three-phase electrical networks: effective values of voltages and currents with sinusoidal and distorted waveforms; active, reactive and apparent electric power.

Distinctive features of 7202:

- Verification and calibration of single-phase meters;

- Checking the constant electricity meters;

- Current measurement using the built-in CT or through current clamps;

- Display of the waveform for current and voltage;

- Display from the 2nd to the 51st current and voltage harmonics;

- Power options: built-in battery, external power source, measured voltage circuit;

- Storage, viewing and transmission of measurement data;

- Data exchange with PC via USB flash disk, RS-232

- Checking the accumulation of energy;

- Simultaneous display of current and voltage waveform

- Measurement of the CT transformation ratio in low voltage circuits;

- Measurements of parameters of secondary circuits (load power) in electric energy metering systems;

- Checking the operability and correct connection of electrical measuring instruments, energy measuring converters of voltage, current, active and reactive power at the place of their operation.


Power and energy measurement

Active power

Built-in CTs

ﾱ0.1%

Clamp meters

ﾱ 0.25%(5A, 20A) ﾱ 0.5% (others)

Reactive power

Built-in CTs

ﾱ0.25%

Clamp meters

ﾱ0.5%

Voltage measurement

Range, V

20V-265

Error, %

ﾱ0.1

Harmonics

2-51

Voltage measurement

Range

Built-in CTs

0.1A-20A

Clamp meters

5A,20A,100A,500A,1000A,2000A,3000A

Error

Built-in CTs

ﾱ0.1%

Clamp meters

ﾱ0.2%(5A, 20A),ﾱ0.5%(others)

Harmonics

2-51

Angle measurement

Range

0-360ﾰ

Error

ﾱ 0.1ﾰ

Frequency measurement

Range, Hz

45Hz-65

Error, Hz

ﾱ0.05

Current output

Range, A

10

Power output, VA

20

Pulse outputs constant

High frequency output (CH), imp/kW

3.6 � 108

Low frequency output (CL ), imp/kW

3.6 � 104

Impulse inputs

Number of channels

2

Maximum frequency, Hz

100

Power supply options

- Built-in battery
- External power supply
- Power supply from the measured network

Dimensions, no more than, mm

155×250×60

Weight, no more than, kg

1.5




Documents

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Quality.

        Reliability.

              Efficiency.