LOA D SUP ERVISIO N PROD UCT FU NCTI ONS
1TNC9 2825 0M0201 27
3.4.2 Phase sequence supervision
FC610 monitors phase sequence of the voltage or current to prevent loss due to wiring errors
of the connected load. Before FC610 detects the current, the phase sequence protection is
based on voltage. When FC610 detects the current, the phase sequence protection is based on
current.
The correct phase sequence for this protection function is specified as follows:
• Voltage: L1，L2，L3
• Current: Ia，Ib，Ic
If this function is enabled, an alarm will be issued when the voltage or current phase sequence
detected by FC610 does not match the above specifications.
To Next Page
Loading...
