VarPlus Logic

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.

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

Measurement

• 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

Alarms

• 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)

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Maintain power factor to avoid penalty - Optimise the preventive maintenance

• Monitoring of all the 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

• 3 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 like in the traditional relays
• Easy retrofit with any available capacitors

Seamless integration - Easy monitoring, alarm and control

• Integration in your existing Schneider Electric solution software or gateways, with RS485 Modbus protocol
• Monitoring of 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