Detail SIPROTEC 7SJ6022 Multifunction Overcurrent And Motor Protection Relay
Feeder protection
• Overcurrent-time protection
• Sensitive ground-fault detection
• Directional sensitive ground-fault detection
• Displacement voltage
• Disk emulation
• Overload protection
• Breaker failure protection
• Negative-sequence protection
• Cold load pickup
• Auto-reclosure
• Trip circuit supervision
Motor protection
• Starting time supervision
• Locked rotor
• Restart inhibit
• Undercurrent monitoring
• Temperature monitoring
Control functions
• Commands for control of a circuit-breaker
• Control via keyboard, DIGSI 4 or SCADA system
Measuring functions
• Operational measured values I, V
• Power measurement P, Q, S, Wp, Wq
• Slavepointer
• Mean values
Monitoring functions
• Fault event logging with time stamp (buffered)
• 8 oscillographic fault records
• Continuous self-monitoring
Communication interfaces
• System interface
– IEC 60870-5-103 protocol
– PROFIBUS-DP
– MODBUS RTU/ASCII
• Front interface for DIGSI 4
Feeder protection
• Overcurrent-time protection
• Sensitive ground-fault detection
• Directional sensitive ground-fault detection
• Displacement voltage
• Disk emulation
• Overload protection
• Breaker failure protection
• Negative-sequence protection
• Cold load pickup
• Auto-reclosure
• Trip circuit supervision
Motor protection
• Starting time supervision
• Locked rotor
• Restart inhibit
• Undercurrent monitoring
• Temperature monitoring
Control functions
• Commands for control of a circuit-breaker
• Control via keyboard, DIGSI 4 or SCADA system
Measuring functions
• Operational measured values I, V
• Power measurement P, Q, S, Wp, Wq
• Slavepointer
• Mean values
Monitoring functions
• Fault event logging with time stamp (buffered)
• 8 oscillographic fault records
• Continuous self-monitoring
Communication interfaces
• System interface
– IEC 60870-5-103 protocol
– PROFIBUS-DP
– MODBUS RTU/ASCII
• Front interface for DIGSI 4
