Three-phase full-parameter AC power acquisition module

Analog Input

Input Channels

3 current channels, 3 voltage channels, 1 zero-sequence current channel

Input Type

Voltage input, current input

Voltage Range (RMS)

Default 450V (customizable up to 1000V)

Current Range (RMS)

Default 100A (customizable: 1A, 5A, 10A, 20A, 30A, 60A, 80A, 100A, 120A, 150A, 200A, 250A, 400A, 500A, 1000A)

Zero-Sequence Current Range (RMS)

Default 100A

Can be used for neutral current measurement or leakage current measurement. Customization requires specification.

For neutral current acquisition, the neutral range is consistent with the current range, and the current transformer is the same as the three-phase current transformer. For leakage current acquisition, the connected transformer is different.

Output Parameters

Three-phase phase voltage, three-phase phase current, neutral current, line voltage, active power, reactive power,

apparent power, power factor, active energy, reactive energy, input frequency,

three-phase total active power, three-phase total reactive power, three-phase total apparent power, three-phase total power factor, three-phase total active energy, three-phase total reactive energy, three-phase total apparent energy, three-phase total power factor, 1st to 51st harmonic content, voltage and current unbalance, external I2C interface,

external DS18B20 temperature sensor, zero-sequence current acquisition, humidity (only T module supports),

temperature (only T module supports)

Note: Modules with the T suffix have the function of measuring ambient temperature and ambient humidity,

see section 1.5 for comparison of different suffixes

Acquisition Signal

The acquisition signal is a standard AC grid signal with a frequency not exceeding 65Hz

Sampling Rate

Voltage and current are sampled once every 400ms; power and energy are sampled once every 300ms

Resolution

16-bit

Acquisition Accuracy

2‰

Built-in Temperature and Humidity Measurement

Onboard temperature and humidity sensor, temperature range -40~120°C, humidity range 0~100%

(only T module supports)

External Temperature Measurement

One 1-wire interface, supports up to 4 DS18B20 sensors.

Temperature measurement range -55~+125°C

External I2C Interface

Requires customer customization.

Current Transformer

External current transformer, see section 1.6 for external transformer details

Energy

With energy storage function

Secondary Transformation

With secondary transformation function

Isolation Voltage

3000V

Others

Communication Interface

RS485, RS232

Baud Rate

1200~115200bps

Data Transmission Rate

<10Hz

Watchdog

Built-in watchdog

Power Supply Voltage

DC +10V～30VDC or AC 220VAC power supply.

When both are connected, only one power supply is active.

Power Protection

Reverse power protection when using DC power supply

Power Consumption

Rated 0.75W @ 24VDC

Operating Temperature

-40°C～＋70°C

Storage Temperature

-40°C～＋85°C