• +91-9978998119 | +91-7621073859

    info@onlinemicrocontrols.com

  • GIDC Vatva, Ahmedabad

    Gujarat 382445

APFC RELAYS

APFC Relay (1 CT sensing)

  • Microcontroller based intelligent PF controller
  • 3 Phase 1CT VAR Sensing APFC Relay
  • Keypad programable parameters – Required KVAr, Switching Delay, Maximum Stages, CT Ratio, Minimum Switching KVAr, Under/Over Voltage Limits, Switching Sequence
  • Switching Modes- FIFO, Geometric, Intelligent for fastest compensation
  • Suitable for both contactor and thyristor switching (Relay/Transistor outputs)
  • Parameter such as – PF,KW,KVA, required KVAr, line voltage, load current,On & off stages, etc.
  • AutoPF – Versions available to switch 4/6 stages in 96mm x 96mm enclosure
  • AutoPF+ – Versions available to switch 8/12/16 stages in 144mm x 144mm enclosure
  • Optional feature of Data communication using MODBUS RS232/RS485 in AutoPF+

APFC Relay (3 CT sensing)

  • Microcontroller based intelligent PF controller
  • 3 Phase 3CT VAR Sensing APFC Relay
  • Keypad programable parameters – Required KVAr, Switching Delay, Maximum Stages, CT Ratio, Minimum Switching KVAr, Under/Over Voltage Limits, Switching Sequence
  • Switching Modes- FIFO, Geometric, Intelligent for fastest compensation
  • Suitable for both contactor and thyristor switching (Relay/Transistor outputs)
  • Parameter such as – Power Factor‐3 ph, Phase/ Line Voltages‐3 Ph, Line Currents‐3ph, KW, KVAs, KVArs (Lag/Lead), Frequency
  • AutoVAR – Versions available to switch 8/12/16 stages in 144mm x 144mm enclosure
  • ERDA / EQDC Certified for measurement accuracy
  • Optional feature of Data communication using MODBUS RS232/RS485
  • AutoVAR+ type controllers has memory to record electrical parameters
  • AutoVAR C (6 CT Sensing) type controllers can monitor Capacitor current & has unique test mode for capacitor testing

AutoVAR (IOT)

  • Advanced IoT-enabled power factor controllers with real-time cloud monitoring and intelligent capacitor switching.
  • AutoVAR-IOT Series controllers are microcontroller and DSP-based, True RMS, VAr sensing Power Factor Controllers designed to transfer electrical data to a remote server or cloud. These controllers provide intelligent switching of capacitor banks while enabling real-time monitoring through an in-built GPRS 4G modem.
  • The system supports up to 16 outputs for capacitor bank control and offers advanced diagnostics, data logging, and remote accessibility, making it ideal for modern smart energy management systems.

⚙️ Control Modes

  • PPC Mode: Operates based on commands from PPC automation
  • Auto Mode: Automatically senses reactive power and switches capacitor banks
  • PPC + Auto Mode: Works on PPC commands and switches to Auto Mode if communication fails

🔧 Key Features

  • Microcontroller & DSP based intelligent control
  • True RMS measurement (3-phase)
  • Designed for HT capacitor bank switching
  • EEPROM-based memory storage
  • Reliable and safe operation in industrial environments

🔄 Switching & Control

  • Programmable KVAr (lag/lead)
  • Switching modes:
    • FIFO (First In First Out)
    • Intelligent switching
    • PPC controlled switching
  • Switching delay: 10 to 999 seconds
  • Stage control: ON / OFF / Auto

🔌 Inputs & Outputs

  • 6 digital outputs for capacitor bank switching
  • 8 digital inputs for breaker status monitoring
  • Breaker ON/OFF status detection

📡 Communication

  • Ethernet port (RJ45)
  • MODBUS TCP/IP protocol
  • Integration with PPC automation systems

📊 Display & Monitoring

  • 16×2 LCD Display
  • Displays:
    • 3-phase Power Factor
    • Voltages & Currents
    • kW, kVA, KVAr (Lag/Lead)
    • Frequency
    • Stage & breaker status
    • Control mode
    • IP address
    • Date & Time

🛡️ Protection & Safety

  • Automatic disconnection during under/over voltage
  • Low current and reverse CT protection
  • Safe operation for HT capacitor banks

🧪 Advanced Features

  • Real-time clock with battery backup
  • Continuous power analysis (V, I, PF, kW, kVA, KVAr)
  • Capacitor bank health monitoring
  • Test mode for detecting faults and imbalance
  • Stage-wise operation tracking

📐 Specifications

Operating Voltage 170–270 VAC, 50Hz / 110–220 VDC
Power Consumption 10 VA
Input Current 1A / 5A
CT Ratio 1 – 1000 (Programmable)
Stages 6
Breaker Inputs 8
Switching Delay 10 – 999 seconds
Communication Ethernet (MODBUS TCP/IP)
Temperature 0°C to 55°C
Humidity Up to 95% RH (Non-condensing)
Dimensions 144mm x 144mm x 155mm

🏭 Applications

  • HT capacitor bank panels
  • Medium voltage power systems
  • Industrial power distribution
  • Utility and substation automation

AutoVAR (MVS)

  • AutoVAR-MV Series controllers are microcontroller and DSP-based, True RMS, VAr sensing Power Factor Controllers specially designed for medium voltage (HT) capacitor bank applications. These controllers ensure safe, reliable, and intelligent switching of capacitor banks using advanced control logic and automation integration.
  • AutoVAR-MV Series controllers are microcontroller and DSP-based, True RMS, VAr sensing Power Factor Controllers specially designed for medium voltage (HT) capacitor bank applications. These controllers ensure safe, reliable, and intelligent switching of capacitor banks using advanced control logic and automation integration.
  • The system supports multiple control modes, digital inputs/outputs, and Ethernet communication, making it ideal for industrial and utility-grade power factor correction systems.

⚙️ Control Modes

  • PPC Mode: Operates based on commands from PPC automation
  • Auto Mode: Automatically senses reactive power and switches capacitor banks
  • PPC + Auto Mode: Works on PPC commands and switches to Auto Mode if communication fails

🔧 Key Features

  • Microcontroller & DSP based intelligent control
  • True RMS measurement (3-phase)
  • Designed for HT capacitor bank switching
  • EEPROM-based memory storage
  • Reliable and safe operation in industrial environments

🔄 Switching & Control

  • Programmable KVAr (lag/lead)
  • Switching modes:
    • FIFO (First In First Out)
    • Intelligent switching
    • PPC controlled switching
  • Switching delay: 10 to 999 seconds
  • Stage control: ON / OFF / Auto

🔌 Inputs & Outputs

  • 6 digital outputs for capacitor bank switching
  • 8 digital inputs for breaker status monitoring
  • Breaker ON/OFF status detection

📡 Communication

  • Ethernet port (RJ45)
  • MODBUS TCP/IP protocol
  • Integration with PPC automation systems

📊 Display & Monitoring

  • 16×2 LCD Display
  • Displays:
    • 3-phase Power Factor
    • Voltages & Currents
    • kW, kVA, KVAr (Lag/Lead)
    • Frequency
    • Stage & breaker status
    • Control mode
    • IP address
    • Date & Time

🛡️ Protection & Safety

  • Automatic disconnection during under/over voltage
  • Low current and reverse CT protection
  • Safe operation for HT capacitor banks

🧪 Advanced Features

  • Real-time clock with battery backup
  • Continuous power analysis (V, I, PF, kW, kVA, KVAr)
  • Capacitor bank health monitoring
  • Test mode for detecting faults and imbalance
  • Stage-wise operation tracking

📐 Specifications

Operating Voltage 170–270 VAC, 50Hz / 110–220 VDC
Power Consumption 10 VA
Input Current 1A / 5A
CT Ratio 1 – 1000 (Programmable)
Stages 6
Breaker Inputs 8
Switching Delay 10 – 999 seconds
Communication Ethernet (MODBUS TCP/IP)
Temperature 0°C to 55°C
Humidity Up to 95% RH (Non-condensing)
Dimensions 144mm x 144mm x 155mm

🏭 Applications

  • HT capacitor bank panels
  • Medium voltage power systems
  • Industrial power distribution
  • Utility and substation automation