Microprocessor Three Phase Voltage, Frequency And Load Control Relay

F27,  F59,  F81,  df/dt,  dv/dt

Its inlet voltage supports three pieces of lagged transformer inlets.

Values ??measured during each period are stored in the FIFO, updated information is stored at the end of each period. Frequency can be programmed in the number of periods considered.

• Three voltage for load shedding, the frequency relay
• 4 pieces of over/under frequency function
• 2 pieces of over/low voltage function
• 2 pieces of df/dt function
• dv/dt function
• 16 pieces of optional programmable relay outlet
• Failure record
• Modbus communication protocol
• UL / CSA listing