Three-phase energy meter field calibrator

1. Introduction

Three-phase energy meter field calibrator is an advantageous product among electric energy metering series products of the company, and is integrated with energy meter calibrator and low voltage metering device, with energy meter error calibration, error wiring judgment, measurement of transformation ratio, meter reading, harmonic measurement and other functions.

2. Features of new functions:

1. Verify discrepancies in active and reactive energy meter readings.

2. Validate the accuracy of active and reactive power measurements between the load management terminal and the distribution transformer monitoring and metering terminal.

3. Measure reactive power with an accuracy of 0.1% using digital true reactive power measurement technology

4. Validate the calibration constants of the electric energy meter.

5. Includes built-in timing and clock verification functions.

6. Integrated self calibrating clamp meter, ensuring long-term accuracy and stability.

7.Compatible with flexible clamps, enabling measurement of comprehensive errors and transformation ratios in low-voltage measurements. Alternatively, a high-voltage clamp meter can be used to measure the transformation ratio and polarity of current transformers utilized in metering devices operating at 35KV and below.

8.Wide range, voltage 0~480V and automatic shifting.

9.Full-scale accuracy level of 0.05 and capable of measuring waveforms of three-phase voltage and current, including harmonics 2-63.

10.Store measurement data from up to 10,000 meters.

11.Communicate with on-site operation terminals and PCs, enabling remote upgrades.

12.Compatible with multiple power supply methods.

2.1 Introduction to product structure

2.2 Wiring

Connection method for calibration of three-phase three-wire system energy meter:

2.3 Introduction to main screen

2.4 Instrument charging

3.1 Calibrate the energy meter’s active and reactive errors at the same time

3.2 Comprehensive error measurement of energy meter

1. Open the instrument, take 500A clamp meter as input current, and clip the clamp meter onto TA primary current line (pay attention to the direction of current);

2. Press [set] to set the meter parameters, constant: 600, number of laps: 2 laps, input: 500A clamp meter, and ratio 100;

3. Choose active and photoelectric calibration mode;

4. The settings are as follows:

4. After the settings, press [Enter] key to begin with comprehensive error measurement.

5. After the error measuring is stable, press [Storage] to input the user information.

 Appendix Technical indicators of three-phase energy meter field calibrator