SIL-V Voltage & Frequency Protection Relay

SIL-V-SIL-V Voltage & Frequency Protection Relay

Sipariş No : SIL-V

For HV, MV and LV Distribution Systems and for Decoupling, Load shedding and Loss of main (Islading) Protection. Loss of Mains (Islanding) occurs when part of the public utility network loses connection with the rest of the systems. If this situation is not detected, then the generator could remain connected, causing a safety hazard within network.

SIL-V Voltage & Frequency Protection Relay

Protection Function ANSI     Protection Function ANSI
Phase Over Voltage (U>>) 59     Neutral Over Voltage (UE) 59N
Phase Under Voltage (U<<) 27     Rate of change of Voltage ∆V/∆T
Synchronism-Check 25     Trip Circuit Supervision 74TCS
Negative Sequence Over Voltage (U2>>) 47     Vector Shift Protection 78
Circuit Breaker Monitoring 52     Auto Reclose 79
Rate of change of Frequency (df>>) 81R     Phase Over/Under Frequency (f>> , f< 81O/U
  • Auxiliary Supply 24-220 Vdc/48-230Vac
  • Synchrocheck – 86 Lockout Relay
  • 8 configurable LEDs
  • 6 Inputs - 4 Outputs
  • Oscillographic records, fault reports and non-volatile RAM memory: stores multiple events with date/time even without power supply thanks to its internal RTC
  • One rear port on the back with the following options respect to protocols:
- IEC60870-103 or Modbus RTU selectable by settings
- IEC 61850, DNP3.0 or IEC 60870-5-104 (depending on the model)
  • Two rear ports on the back can be used simultaneously:
- ModBus RTU and  IEC60870-5-103, IEC 61850, DNP 3.0 or IEC 60870-5-104




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