1. Various structural designs, integrated or split structure; special aluminum alloy frame, fireproof composite material table, beautiful appearance.

2. The crimp-type junction box (4 high-current terminals, 8 small-signal terminals) conforming to the standard interface of the State Grid smart meter, each meter position is equipped with an open circuit detection function, and an automatic short-circuit vacant meter position function can be selected.

3. Dual-current loop design, each meter is equipped with two high-quality 100A magnetic latching relays; it can perform automatic primary and secondary loop error testing on the electric energy meter of anti-theft double-loop metering; it supports single-phase dual-loop cost control intelligence of the State Grid Manual and automatic verification of the electric energy meter; no need to connect the meter twice, through relay switching, the live wire (L) circuit and the neutral wire (N) circuit can be tested separately without decoupling, and the two current circuits can be switched through the keyboard. It can also be automatically switched through the calibration software;

4. Using the improved digital pulse width modulation technology power source, the output voltage (current) efficiency is high, the heat generation is low, and the stability is high, which completely solves the problem of small current and large deterioration.

5. Perfect fault detection, location, protection and alarm functions, with protection functions such as voltage short circuit, current open circuit, power amplifier overheating, and poor contact.

6. The 2nd to 21st harmonics are superimposed, and the amplitude and phase can be set freely (the harmonic amplitude is within 40% of the fundamental wave, and the phase is 0 to 360.). Harmonic analysis can also be performed on the output quantity and waveforms can be drawn; the harmonic influence test can be performed on the electric energy meter. .

7. Each meter is equipped with independent pulse input with high-voltage protection function, multi-function signal input, 485 communication signal interface, and multi-function display board with 6-digit digital display (displaying basic error, number of running word pulses, meter clock, various states logo, etc.).

8. The test plan is flexibly set, which can complete the basic error, constant check, submerged start test, multi-rate electric energy, voltage, current, power factor, zero line current indication error, etc., daily timing error, time period switching error, need Quantity indication error, demand cycle error, etc. All accuracy requirements are tested.

9. It can complete all consistency tests and various influence tests such as error variation, error consistency, load current rise and fall variation, and current overload.

10. It can perform voltage influence, frequency influence, harmonic influence and other influence tests on various electric energy meters.

11. Accurate timing of the meter can be achieved through a high-precision GPS module.

It can conduct communication test, broadcast time calibration for multi-function electric energy meter and multi-rate electric energy meter; internal data verification, time zone period test, combined error test.

11. Support charge control function tests such as power decreasing accuracy, electricity price switching test, load switch tripping, closing test (built-in relay low-voltage current pull-off, external relay AC220 voltage detection).

13. It can test the freezing function of smart meters, and can test various freezing methods.

14. It can test the event recording function of the smart meter, including loss of voltage, loss of current, phase loss, total loss of voltage, power failure, programming, clearing, opening and closing the cover, opening the gate, etc.

15. Tests such as voltage drop and power interruption, and slow rise and fall of power supply can be carried out.

16. It can test the power failure display and power failure meter reading function of the smart meter.

17. Using serial port server or multi-channel 485 communication conversion board, advanced multi-thread software technology enables multi-position 485 parallel communication, greatly improving communication efficiency.

18. The optional carrier module switcher can realize the carrier communication test of the single-phase carrier energy meter.

19. Prepaid detection function - trip function test; the device is equipped with a third current loop; it can detect the decreasing accuracy of prepaid residual power, and after inserting the relay test card (or reaching the alarm power), it can detect whether the electric energy meter has tripped. When the trip function of the prepaid card meter is detected, when the voltage and current rise, the current loop of any meter is disconnected, the voltage and current of the device can ensure normal output, the current does not open, and no alarm or shutdown occurs. , does not affect the operation of other epitopes, and all epitopes are detected at one time.

20. The powerful PC control and management software can read and write nearly 2,000 parameter data according to the requirements of the State Grid. The interface is concise and clear, and the full menu graphic mode is easy to learn and use. Database query, statistics, printing and networking are all available.

21. Configure SG186 networking interface module

22. Provide a dynamic database, which is convenient for third-party secondary development.