Single-phase three-phase energy meter automatic inspection device equipment

1、Multiple structural designs, one-piece or split structure; special aluminum alloy frame, fireproof composite material table top, beautiful and generous appearance.

2、Compatible with the national network smart meter standard interface compression type junction box (4 large current terminals, 8 small signal terminals), each meter position with open circuit detection function, optional automatic shorting vacant meter position function.

3, dual current loop design, each meter position is equipped with two high-quality 100A magnetic retention relays; can carry out automatic primary and secondary loop error test for the anti-stealing dual-circuit metering of the energy meter; support the manual and automatic calibration of the State Grid single-phase dual-circuit fee-controlled intelligent energy meter; no need for secondary connection of the meter, through the switching of the relay to achieve the firewire (L) circuit and the zero-wire (N) circuit of the firewire (L) circuit and zero-wire (N) circuit without decoupling the inspection, completed at once; the two current circuits can be connected through the keypad with open circuit detection function, with optional automatic shorting of vacant meters. Completed; the two current circuits can be switched through the keyboard or automatically switched through the calibration software;

4. Adopting the improved digital pulse width modulation technology power source, the output voltage (current) is highly efficient, with low heat generation and high stability, which can completely solve the problem of large variation of small current.

5, perfect fault detection, localization, protection and alarm functions, with voltage short circuit, current open circuit, amplifier overheating, poor contact and other protection functions.

6、2～21th harmonic superposition, amplitude and phase can be set freely (harmonic amplitude within 40% of the fundamental wave, phase 0～360.). It can also analyze the output harmonics and draw waveforms; it can test the harmonic influence on the power meter.

7、Each meter is equipped with independent pulse input with high-voltage protection function, multifunctional signal input, 485 communication signal interface, and multifunctional display board with 6-bit digital display (displaying basic error, number of walking pulses, meter clock, various status signs, etc.).

8, the test program can be set flexibly, can complete the basic error, constant calibration, potential starting test, multi-rate power, voltage, current, power factor, zero line current error, etc., the daily timing error, the time period of the casting and cutting error, the demand for the value error, the demand for the period of error, and so on, all the accuracy requirements of the test.

9, can complete the error variance, error consistency, load current rise and fall variance, current overload and other consistency tests and various impact tests.

10、It can test the voltage influence, frequency influence, harmonic influence and other influences on all kinds of power meters.

11、It can realize the accurate timing of power meter through high-precision GPS module.

It can carry out communication test, broadcasting time calibration, internal data verification, time zone time period test and combination error test for multi-function power meters and multi-rate power meters.

11 It supports power decrement accuracy, tariff switching test, load switch tripping and closing test (built-in relay low-voltage current pulling, external relay AC220 voltage detection) and other fee-control function tests.

13 It can test the freezing function of the smart meter, and can carry out tests of various freezing methods.

14 can test the event recording function of smart meter, including loss of voltage, loss of current, phase break, total loss of voltage, power drop, programming, clearing zero, switch cover, pulling gate, etc.

15 can test the voltage drop and power interruption, power slow rise and fall, etc.

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

17, the use of serial port server or multi-channel 485 communication conversion board, advanced multi-threading software technology, so that the multi-meter 485 parallel communication, greatly improving the efficiency of communication.

18、Optional carrier module switcher to realize carrier communication test of single-phase carrier energy meter.

19, prepaid detection function – trip function test; device configuration of the third current loop; can test the accuracy of prepaid residual power diminishing, insert the relay test card (or reach the alarm power), test the energy meter with or without tripping. In the prepaid card meter tripping function test, in the voltage and current rise, the current circuit of any meter position is disconnected, the voltage and current of the device can ensure normal output, the current is not open circuit, no alarm and shutdown, no impact on the operation of other meters, and all the meters complete the test at once.

20, powerful PC control management software, according to the requirements of the national network can be nearly 2000 parameters of data reading and writing, interface is simple and clear, full menu graphics mode, easy to learn and use. Database query, statistics, printing, networking all in one.

21、Configuration of SG186 networking interface module

22、Provide dynamic database for third-party secondary development.

Parameter Name: Main Indicators

Accuracy level of the device: 0.05 level, 0.1 level

Standard energy meter level of the device: SYS120 single-phase multi-function standard energy meter, accuracy level: 0.05 level

Voltage range: 0-240V (can be set arbitrarily), 0-120% range Adjustment fineness: 0.01% fullness

Current range: 0.005A, 0.025A, 0.05A, 0.25A, 0.5A, 1A, 2.5A, 5A, 10A, 20A, 50A, 100A Adjustment range: 0-120% Adjustment fineness: 0.01%

Phase shifting range: 0-360°, Adjustment fineness: 0.01°

Output frequency: 45Hz-65Hz, Adjustment fineness: 0.01Hz

Indicator accuracy Voltage: <0.2% Current: <0.2% Phase: <0.2% Phase: <0.2% Current: <0.2% Current: <0.2% Current: <0.2% Current: <0.2% Current: <0.2% Current: <0.2% Current: <0.2 Phase: <0.1 Power: <0.2%

Output waveform distortion Voltage: <0.5% Current: <0.5%

Output stability Voltage: <0.05% / 3 minutes Current: <0.05% / 3 minutes Power: <0.05% / 3 minutes

Harmonics Output: 2 to 21 times, harmonic content <40% Any setting within the fundamental wave.

Output capacity: Current: 1000VA (120A); Voltage: 500VA (24 meters)

Load characteristics: Resistive, Inductive, and Capacitive (small 4uF)

Minimum starting current: 1mA (minimum), accuracy: <5%, Starting power: accuracy <5%

SYT10 Standard Clock 3×10-7/S (internal time base accuracy), output 50KHz; GPS Timing Device (Optional)

Current wiring mode: 1–2, 4–3

Multi-booster accuracy: 0.01 grade; each rated load: 15VA

Device input power supply: 220VAC, ±10%, 50Hz; maximum power consumption: 2000VA ( 24 meters)