Three Phase Energy Meter Test Multimeter Test Bench

ZXDN-306 Three Phase Energy Meter Test Multimeter Test Bench

Introduction

ZXDN-306 three-phase multi-function meter inspection device is our company's requirements according to relevant national standards and regulations. Based on the accumulation of more than ten years of production experience of the three-phase program-controlled electric energy meter verification device, the electronic program-controlled three-phase electric energy meter verification device has been carefully developed. It is based on different types of calibration devices developed and produced by different three-phase energy meters; it is suitable for the inspection of various single-phase three-phase energy meters (including sinusoidal reactive power meters) of level 0.2 and below. Craftsmanship, complete functions and excellent performance will definitely be favored by you.

Features

1. Adopt split or integrated structure, special aluminum alloy hanging table frame, fireproof composite board table, beautiful appearance.

2. The signal source adopts DDS technology, large-scale CPLD and RAM embedded system, output 36000 phase modulation, 12-bit D / A conversion waveform synthesis output, 16-bit D / A amplitude modulation output; has high stability and small adjustment fineness , Low distortion, etc.

3. The 7-inch color LCD screen with RAM system has the advantages of large amount of displayed information, intuitive and convenient.

4. Each table position is equipped with 6-bit LED multi-function display, which can display the basic error of each table position, clock frequency and various test marks;

5. The current connection method of the electric energy meter is a quick crimping aluminum alloy junction box (optional smart meter crimping junction box).

6. Each table position is equipped with a multi-channel pulse input switching port with protection function (four-channel pulse, one-channel 485, one-channel multi-function), which can prevent high voltage from entering by mistake and causing failure; one-time wiring and automatic switching

7. Each meter position is equipped with an open current detection function, which can automatically detect and indicate the open meter position. (Optional function of automatic short circuit open position)

8. Each meter is equipped with a fee control detection module, which can do local and remote fee control tests. The smart meter of the built-in relay can detect the opening and closing function of the relay, and the measurable output voltage of the external relay.

9. Configure ZXT10 high-precision standard clock, internal 3 * 10-8 crystal oscillator, can test the clock error.

(Optional ZXGT10 GPS clock timer).

10. Configure multi-serial communication, each table position is equipped with an independent 485 communication port (optional serial server can implement parallel communication).

11. Each table position is equipped with a three-dimensional adjustable multi-function photoelectric sampler, which can reliably receive the black mark of the mechanical watch and the strobe signal of the electronic watch (optional).

12. Adopt PWM modulation power amplifier, which has large output power, small calorific value and efficiency up to 90%.

13. The device has the soft start and stop function of voltage and current output, the protection and alarm function of short circuit of voltage output terminal and open circuit of current output terminal, all-round protection of output power amplifier, high reliability;

14. Carrier switching box can be configured, built-in 6 domestic mainstream carrier controller. (Optional)

15. Provide hierarchical verification management software, with power-off protection function, advanced multi-thread programming technology, to ensure parallel communication of multiple epitopes.

Technical index

1. Device accuracy level: 0.02 level, 0.03 level, 0.05 level, 0.1 level (optional)

2. Output voltage:

    Output voltage range of each phase: 57.7V, 100V, 220V, 380V

    Adjustment range: 0 ~ 120% / file; continuously adjustable

    Adjustment fineness: 10%, 1%, 0.1%, 0.01%

3. Output current: 0.005A, 0.025A, 0.1A, 0.25A, 0.5A, 1A, 2.5A, 5A, 10A, 20A, 50A, 100A

    Adjustment range: 0 ~ 120% / file; continuously adjustable

    Adjustment fineness: 10%, 1%, 0.1%, 0.01%

4. Output power:

5. Output voltage, current, power stability;

6. Distortion of output voltage and current waveform:

7. Three-phase symmetry: better than 120°± 0.3 °

8. Frequency range: 45Hz ~ 65Hz Adjustment fineness: 0.01Hz

9. Phase shift range: -180.0 ° ~ 180.0 ° Adjustment fineness: 0.01 °

10. Standard crystal stability: ≤3 * 10-8 / S

11. Indicating instrument level: the accuracy of voltage and ammeter is 0.2%

                   The accuracy of the phase table is ± 0.1 °

                   Frequency meter accuracy is ± 0.1 Hz

12. Number of pocket watches: 3, 6, 12, 16, 20, 24, 32, 48

13. Power supply: 3 × 220V ± 10% ~ 50Hz

14. Maximum power consumption:

14. Working environment: temperature 20 ℃, soil 5 ℃, relative humidity ≤85%