Description

AFM-8A has Developed for AFC*(Auto Frequency Control) high performance measurement and frequency update, its update up quicker than 100mSec. multifunction power analyzer provides high-accuracy measurement and is designed for single phase and three phase application. It includes 4 Digital inputs, 4 Relay outputs, and a RS-485 Modbus RTU Communication port. The user can choose one more communication port, and 2 Analog outputs for output expansion.

It provides measure voltage and current of the 2~63 harmonic, and it shows CO2 emissions, which is suitable for power monitoring, management and analyze power quality. It has TOU (time-of-use) function and 4MB Flash memory capacity, allowing users to record data for a long time. It also has a software line adjustment function to reduce the on-site line adjustment work.

*Automatic Frequency Control (AFC) frequency modulation service is one of the emerging technologies, because the energy storage system has the characteristics of rapid charging and discharging, through the active adjustment of the charging and discharging action to adjust the frequency of the power system, it can help maintain the frequency drift caused by load fluctuations, which is very suitable as a system stability response scheme under the high proportion of renewable energy.

Features

■ Measuring 1P2W/1P3W/3P3W/3P4W system and the setting is programmable.

■ Measuring balance / unbalance loading system, including power parameters such as voltage, current, frequency, power factor, active power, reactive power, apparent power and energy.

■ CT input current can be set 1A or 5A by the user.

■ The number of sampling cycles is the number of cycles of the input frequency, and each cycle samples 256 points.

■ The large-size, high-brightness LCD is easy and clear to read even under direct sunlight.

■ Innovative meter AI calculation can perform automatic line adjustment (See Note).

■ Embedded 4MB non-volatile memory(NVM) which is with data and events recording function, can record for a long time.

■ Measuring power quality is optional, for recording voltage sag, voltage surge and current swell event which included the time stamp and setting value.

■ RS-485 Modbus RTU or Ethernet Modbus TCP is optional for the second communication.

■ Measuring voltage and current up to 63th individual harmonic, and can maintain power stability, and moreover, to avoid risk of equipment malfunctiion.

■ Standard with time of use (TOU) function, which can perform power consumption with differential statistics according to the electricity consumption period.

■ Standard with 4 sets of DI and 4 sets of relay output, or choose option with 8 sets of DI and 2 sets of AO for the control functions to facilitate on-site monitoring and alarm needs.

■ Standard with 1 set of RS-485 Modbus RTU, and it's optional for one more set of RS-485 or Ethernet interface (Modbus TCP).

■ CE, and FCC approved.

■ Up to 9 parameters with 20Hz (50ms) of data refresh rate.

Note: Auto wiring function is conditional, please refer to operation manual.

Applications

■ Automatic frequency control

■ Swell and sag detection record

■ Power abnormal event record

■ Waveform capture and recording