توضیحات
SIEMENS 7SJ6021 قیمت رله
Feeder protection SIEMENS 7SJ6021
• Overcurrent-time protection
• Sensitive earth-fault detection
• Directional sensitive earth-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 circuitbreaker
• 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
Hardware
• 4 current transformers or
• 3 current + 1 voltage transformers
• 3 binary inputs
• 4 output relays
• 1 live status contact
نقد و بررسیها
هیچ دیدگاهی برای این محصول نوشته نشده است.