VFR-1003, Rơ le bảo vệ tần số điện áp VFR-1003, VFR-1003 Orion Italia, Đại lý Orion Italia tại Việt Nam

Rơ le bảo vệ tần số điện áp VFR-1003

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.

• Phase and Line Voltages
• Phase Sequence
• Voltage Average
• Voltage Unbalance
• Voltage THD
• Voltage Harmonics
• Frequency (Hz)
• Frequency variation (negative rate of change df/dt)