VFR
Protection Relay for Voltage - Frequency
The device has been designed for continuous monitoring of the system’s voltage, frequency and related variations. It is able to disconnect one or more loads in case of underfrequency (up to 7 stages) or frequency negative rate of change (up to 2 stages).
The VFR protects industrial and commercial power networks in case of voltage disturbances.
Automatic Load Shedding
Applications
- Commercial, industrial and public utility
Protection and Functionality
- Under & Over Voltage
- Frequency
- dF/dT (up to 2 stages)
- Phase Sequence
- Underfrequency (up to 7 stages)
- Overfrequency (up tp 3 stages)
Communication
- RS485 port, Modbus RTU Protocol
Digital Measurement
- Phase and Line Voltages
- Phase Sequence
- Voltage Average
- Voltage Unbalance
- Voltage THD
- Voltage Harmonics
- Frequency (Hz)
- Frequency variation (negative rate of change df/dt)
Signalling
- Graphic LCD & LED based HMI
- Indication of fault conditions
- Indication of the relay status
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Contact Us
Orion Italia s.r.l
VAT IT01552780338
Via Orsi 35, 29122
Piacenza Italy
Manufacturer of protection Relays & temperature controllers for industrial applications
