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VarPlus Logic

Intelligent power factor correction controllers

Part of PowerLogic

VarPlus Logic has all what you need for the simple and efficient operation of your automatic power factor correction equipment to maintain your power factor. It is a simple and intelligent relay which measures, monitors and controls the reactive energy.

VarPlus Logic
  • Features

    VarPlus Logic offers a fast, reliable and safe power factor correction while monitoring the real time data of your system and alerting on preventive maintenance. Easy commissioning, step size detection and monitoring make it different from others in the market.

    Find out more:
    VarPlus Logic VL series PF Correction Controller Modbus user manual Technical data

    90-550 V direct voltage input
    1A or 5A CT secondary compatible with 15 mA sensitivity
    4 quadrant operation – Suitable for operation with energy import and export
    No restriction in step sequence
    Inbuilt temperature monitor with fan control and alarm
    Dedicated alarm contact and fan control relay
    Automatic initialization and automatic step detection for fast and easy commissioning
    Communication – RS485 communication in Modbus protocol
    Digital inputs to control dual cos phi

    Active, reactive & apparent power (kW, kVA, kvar)
    Power factor, voltage and current
    Total voltage harmonic distortion & individual harmonics up to 19th harmonic
    Present cabinet temperature and maximum temperature since reset
    Step data monitoring

    Over/under voltage, low/high current, under/over compensation alarms
    Faulty step alarm with step number
    Individual step derating of capacitor indicator
    High temperature alarm, through an internal thermal sensor
    Total harmonic distortion alarm at 7% THDu
    Operational hours & operational counter alarm
    Hunting alarm
    Mechanical data

    Flush mounting
    Degree of protection - IP 41 (front) & IP 20 (rear)


    Maintain power factor to avoid penalties - Optimise preventive maintenance

    Monitoring all connected capacitor steps with real time power in kvar
    Remaining step capacity as a % of the original power since installation
    Number of switching operations of every connected step
    Hassle-free commissioning of capacitor bank

    Three-step commissioning process in stable loads
    Automatic initialization and step detection
    Automatic correction of connection errors while installation
    Flexibility for design of capacitor banks / Flexibility in retrofitting

    Easy design of  capacitor bank
    No step sequence restriction as in traditional relays
    Easy retrofit with any available capacitors
    Seamless integration - Easy monitoring, alarming and control

    Integrate with your existing Schneider Electric solution software or gateways, with RS485 Modbus protocol
    Monitor network parameters, temperature, harmonics with 12 different alarms
    Automatic corrections by switching off steps in case of any system abnormality                


    Automatic Power Factor Correction (APFC) systems:

    Automatic power factor compensation with capacitors alone
    Automatic power factor compensation with capacitors and detuned reactors

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