HighPROTEC MRU4

All Inclusive‍

• All protection features without extra charge
• Parameter setting and evaluation software
• Disturbance record analysis software

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Comprehensive frequency protection packageEach of the six elements can be used as:

• f< or f> (over- and underfrequency supervision)
• df/dt (ROCOF) - Rate of change of frequency
• (f< and df/dt) or (f> and df/dt) Combination of over-, under- and rate of change of frequency (ROCOF)
• (f< and DF/DT) or (f> and DF/DT) Combination of over-, under-and increase of frequency
• Delta Phi (Vector surge)

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Six Elements Voltage Protection‍

• Under- and overvoltage
• Programmable time dependent undervoltage tripping characteristic

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Six Elements Voltage Asymmetry Supervision‍

• Under- and overvoltage in positive phase sequence system, overvoltage in negative phase sequence system

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Logic‍

• Up to 80 logic equations for protection, control and monitoring

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Additional Highlights‍

• Two Elements Residual Voltage Protection VE>
• Flexible Fourth Voltage measuring input 2 elements VE > or VX (for Synchrocheck)
• Sliding-Mean-Square Supervision, adjustable (VDE-AR 4105)
• FRT (LVRT), adjustable LVRT-profiles, optionally
 AR-controlled
• Synchrocheck, now via Transformer

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Supervision‍

• Voltage transformer supervision
• Trip circuit supervision
• CBF via position indicators

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Recorders‍

• Disturbance recorder: 120 s non volatile
• Fault recorder: 20 faults non volatile
• Event recorder: 300 events non volatile
• Trend recorder: 4000 non volatile entries

Communication Options‍

• IEC 61850
• Profibus DP
• Modbus RTU and/or Modbus TCP
• IEC 60870-5-103/-104
• DNP 3.0 (RTU, TCP, UDP)
• SCADApter for Retrofit
• Configurable SCADA protocols:
 Modbus, Profibus, IEC 60870-5-103/-104, DNP3
• TypeCodes Communication O,P,Q,R
• Redundant Ethernet: Two Ethernet channels available on the device [Electrical Ethernet [RJ45] or Optical Ethernet [FO] - fiber optic cable 

  
  • Switch-Mode [Redundancy with RSTP]

  • PRP - Parallel Redundancy Protocol

  • HSR - High-Availability Seamless Redundancy Protocol

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Control‍

• 1 breaker
• Breaker wearr

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Commissioning Support‍

• Customizable Display (Single-Line)
• Customizable Inserts
• Copy and compare parameter sets
• Configuration files are convertible
• Forcing and disarming of output relays
• Fault simulator: current, voltage
• Graphical display of tripping characteristics
• 8 languages selectable within the relay

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PC Tools‍

• Setting and analyzing software
 Smart view free of charge
• Including page editor to design own
 Control pages
• SCADApter to re-assign datapoints for Retrofit projects: Modbus, Profibus,
 IEC 60870-5-103/ -104

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Cyber Security‍

• Menu for the activation of BDEW Whitepaper-compliant security settings
(e. g. hardening of interfaces)
• Security Logger
• Centralized Security Logs (Syslog)
• Encrypted Connection Smart view Device
• Device specific certificates (No man in the middle attacks)
• Multi-Password-Level

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Time Synchronisation‍

• SNTP, IRIG-BOOX, Modbus, DNP 3.0,
IEC 60870-5-103/-104