Bender LINETRAXX VMD460-NA

The VMD460 is an external, multi-channel network and system protection (NS protection) device designed to measure,
monitor, and disconnect power between the power generator and the grid should the voltage and frequency produced by
the power generating facility are beyond the threshold of acceptable electrical standards. Apart from being fully user-
configurable, the measured values leading up to the disconnection of the relays stored for review and evaluation.

Features

Benefits

  • Straightforward commissioning due to pre-set basic programs for national standards and regulations
  • Single-fault tolerance
  • Monitoring of the connected coupling switch (configurable: NC/NO/off)
  • Islanding detection df/dt (ROCOF)
  • Vector shift
  • Interface RS-485 (data exchange, parameter setting, software update)
  • Test function for the determination of the disconnection time
  • Test button for the trigger circuit
  • The last 300 distribution network faults can be recalled with time stamp/real-time clock
  • Continuous monitoring of the phase and line-to-line voltage
  • Separate switching conditions after a threshold infringement
  • Language selection (German, English, Italian)
  • Backlit graphics LC display
  • Remote shutdown via ripple control signal receiver
  • Password protection for device setting
  • Sealable enclosure

Applications:

  • Central NS protection
  • Automatic switching point between a power generation system operated in parallel with the network and the public grid
  • Application in accordance with CEI 0-21, VDE-AR-N 4105, BDEW guideline, C10/11, G59/2, G83/2, DIN V VDE V 0126-1-1
  • Universally applicable for safe mains decoupling of power generation systems

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