DDB-423 Three-Phase Energy Meter Field Calibrator

Appliance: The three-phase watt-hour meter field calibrator is a high-precision measuring instrument which integrates watt-hour meter calibration, electrical parameter testing, secondary load testing of transformer and power quality problems such as waveform distortion, voltage fluctuation and three-phase unbalance in power grid

Features: 1, the instrument is a set of energy meter calibration, electrical parameter test, transformer secondary load test and detection of power quality problems such as waveform distortion, voltage fluctuation and three-phase imbalance in the power grid as one of the high-precision testing instrument.

2, without power failure, without changing the metering circuit, without opening the metering equipment, online real load detection of the comprehensive error of the metering equipment.

3, accurate measurement of voltage, current, active power, reactive power, phase Angle, power factor, frequency and other electrical parameters, so as to calculate the measurement error of the test equipment loop.

4, can display the measured voltage and current vector diagram, the user can analyze the vector diagram to get the correct connection of the metering equipment. At the same time, when the three-phase three-wire connection mode, 48 kinds of connection modes can be automatically judged; Automatic recharge power calculation function, convenient for users to calculate the recharge power of users with wiring problems.

5, the current circuit can be measured using the clamp transformer, the operator does not need to disconnect the current circuit, it can be convenient and safe measurement.

6, can verify voltmeter, ammeter, power meter, phase meter and other indicating instruments as well as three-phase three-wire, three-phase four-wire, single-phase 1A, 5A of various active and reactive energy meters.

7, can use photoelectric, manual, pulse and other ways to verify the energy meter.

8, with two pulse acquisition circuit, can check the error of the main and secondary tables at the same time.

9. The standard deviation of the measured energy meter can be calculated.

10, Optional high voltage clamp type current transformer, can detect the ratio of current transformer of 35kV and below voltage level online.

11, can be carried out walking test, the indicator function of the power meter to detect.

12, the measurement and analysis of the AC power quality of the public grid to the client, the measurement and analysis: frequency deviation, voltage deviation, voltage fluctuation, three-phase voltage allowable unbalance and grid harmonics.

13, can display single-phase voltage, current waveform and can display three-phase voltage, current waveform.

14, load fluctuation monitoring: measure and analyze the fluctuations caused by various electrical equipment in different operating states to the power quality of the public grid. Record and store voltage, current, active power, reactive power, apparent power, frequency, phase and other power parameters.

15. Dynamic monitoring of power equipment adjustment and operation process to help users solve problems in the process of power equipment adjustment and operation.

16. Test and analyze the dynamic parameters of reactive power compensation and filter device in power system and make quantitative evaluation of its functions and technical indicators

17, optional bar code scanner, the bar code of the meter for automatic input.

18, Optional WIFI(Bluetooth) module, using a tablet computer or mobile phone to remotely control the instrument (Android and WINDOWS two systems APP).

19, the 485 communication interface of the watt-hour meter is tested, and the working requirements of the on-site verification multi-functional (intelligent) watt-hour meter can be checked according to the demand cycle and slip time set in the meter.

20, with perpetual calendar, clock function, real-time display date and time. The test data and results can be saved at the same time of on-site verification, and uploaded to the computer through the serial port, and the data is microcomputerized management through the background management software (optional).

Specification: