Valve-controlled energy metering module
1. Single-phase AC input
1) Voltage range: AC 80~260V.
2) Current range: 20mA~10A.
3) Signal processing: Use dedicated metering chip, 24-bit AD.
4) Overload capacity: 10A range is sustainable.
5) Input impedance: Voltage channel>1KΩ/V. Current channel≤100mΩ.
2. Switch output
1 canal, relay open circuit output, voltage and current overload alarm protection output function
3. Communication interface
1) Interface type: Optional RS-485, TTL, 433M wireless interface.
2) Communication protocol: MODBUS-RTU protocol.
3) Data format: Software setting «n,8,1», «e,8,1», «o,8,1», «n,8,2».
4) Communication rate: The baud rate can be set to 1200, 2400, 4800, 9600bps.
5) Communication data: Voltaje, actual, fuerza, power factor, power and other electrical parameters.
Descripción del Producto
The valve-controlled energy metering module is a type of energy metering module that integrates the functions of energy metering and valve control, but there is limited information about its specific definition and detailed working principle. Sin embargo, combined with the general characteristics of energy metering modules and the concept of valve control, some explanations and speculations can be made about valve-controlled energy metering modules.
Energy metering module: A device used to measure and record energy consumption, usually including components such as current transformers (Connecticut), voltage transformers (VT), and metering chips. The energy consumption is calculated by measuring current and voltage, and the results are recorded in specific units (such as kWh).
Valve control: Usually refers to a device or system that controls the flow of fluids (such as gases and liquids). In power systems, although it does not directly involve fluid control, «valve control» may refer to a certain control function related to energy metering, such as remote control of the supply or cutoff of energy.
Features of the electric energy metering module
1. Collect multiple electrical parameters such as voltage, actual, fuerza, and electric energy in single-phase AC or DC, with complete information.
2. Adopt special measurement chip, effective value measurement method, and high measurement accuracy.
3. With RS-485 communication interface, optional TTL, 433M wireless communication.
4. The communication protocol adopts standard Modbus-RTU, with good compatibility and convenient programming.
5. Wide working voltage AC80～264V.
6. High isolation voltage, with a withstand voltage of AC:2000V.
7. Can be changed and customized according to customer requirements.
Application fields
Valve-controlled energy metering modules may be widely used in the following fields:
1. Smart grid: As an important part of smart grid, it realizes accurate metering and remote control of electric energy.
2. Demand response: In the power demand response system, the supply and demand of the power grid are balanced by remotely controlling the supply or cut-off of electric energy.
3. Energy management: In industrial, commercial and residential electricity consumption, it provides accurate energy metering data and remote control functions, which helps to achieve efficient utilization and management of energy.
4. Charging facilities: In charging facilities such as electric vehicle charging stations, it is used to accurately measure energy consumption and control the charging process.
Precauciones
1. Technology update: With the continuous development of power technology and communication technology, the technology of valve-controlled energy metering modules is also constantly updated and improved. Por lo tanto, it is necessary to pay attention to its technical level and compatibility when selecting and using it.
2. Safety protection: Since the valve-controlled energy metering module involves the metering and control functions of electric energy, it is necessary to strengthen safety protection measures to prevent illegal access and operation.
3. Maintenance and management: Regularly maintain and manage the valve-controlled energy metering module to ensure its normal operation and accuracy.
8 funciones de autoprotección
1. Protección de límite de potencia de entrada
Cuando la potencia de la placa de batería es mayor que la potencia nominal, El controlador limitará la potencia de la placa de la batería dentro de la potencia nominal para evitar que la corriente sea demasiado grande y dañe el controlador., y el controlador ingresará el límite de carga actual.
2. Protección de conexión inversa de batería
El sistema no funcionará después de encender la batería al revés., y el controlador no se quemará.
3. Protección contra sobretensión de tensión de entrada fotovoltaica
El controlador apagará automáticamente la entrada fotovoltaica si el voltaje en la entrada del conjunto fotovoltaico es demasiado alto..
4. Protección contra cortocircuitos de entrada fotovoltaica
El controlador desconectará la carga después de que se cortocircuite la entrada del conjunto fotovoltaico., Y la carga se reanudará automáticamente cuando se elimine la condición de cortocircuito..
5. Protección de conexión inversa de entrada fotovoltaica
Cuando se invierte la polaridad del conjunto fotovoltaico, El controlador no se dañará y seguirá funcionando normalmente después de corregir el error de cableado..
6.Carga sobre protección de energía
Cuando la carga excede la potencia nominal, la carga retrasará la protección de la salida.
7. Protección contra carga inversa durante la noche
Evite que la batería se descargue a través de la placa de la batería por la noche.
8.Protección contra sobrecalentamiento
Protección contra rayos TVS
