رله حفاظتی زیمنس 7VK61 (مدیریت بریکر)

مشخصات سخت افزاری رله حفاظتی زیمنس 7VK61

• Binary inputs: 7/20
• Binary outpurs: 5/18
• Text display
• Surface-mounting or flush-mounting housing

رابط های ارتباطی رله حفاظتی زیمنس 7VK61

• System port
  • IEC 61850
  • IEC 60870-5-103
  • PROFIBUS DP
  • DNP 3
• Service port
  • DIGSI 4
  • Modem
• Front port
  • DIGSI 4
• Time synchronization via IRIG B, DCF 77 or system interface

Product homepage – downloads from the internet (catalogue, certificates, firmware, manuals,…)

Protection functions

• Single and/or three-pole auto-reclosure
• Synchro-check with live/dead line/bus measurement
• Closing under asynchronous conditions (consideration of CB operating time)
• Circuit-breaker failure protection with two stages (single and three-pole with/without current)
• End-fault protectionPole-discrepancy protection
• Overvoltage/undervoltage protection

عملکردهایکنترل رله حفاظتی زیمنس 7VK61

• Commands f. ctrl. of CB and isolators

عملکردهای نمایشی رله حفاظتی زیمنس 7VK61

• Operational measured values
• Self-supervision of the relay
• Event buffer and fault protocols
• Oscillographic fault recording
• Monitoring of CB auxiliary contacts
• Switching statistics

دیگر مشخصات رله حفاظتی زیمنس 7VK61

• All functions can be used separately
• Initiation/start by phase-segregated or 3-pole trip commands
• Auto-reclosure for max. 8 reclose cycles
• Evolving/sequential trip recognition
• Auto-reclosure with ADT, DLC, RDT
• Synchro-check with ΔV, Δϕ , Δf measurement
• Breaker failure protection with highly secure 2-out-of-4 current check detectors
• Breaker failure protection with short reset time and negligible overshoot time.