021 RELAY ASSEMBLY FOR REMOTE VOLTAGE INDICATION

Description

FEATURES & BENEFITS

  • Personnel safety assured by optical link between voltage detector and remote relay.
  • Voltage detector itself is insulated even in case of capacitive divider breakdown and able to absorb fault energy.
  • Remote indication of voltage presence/absence allow to avoid complicated and critical mechanical interlock.
  • Largely used in earth switch and remote disconnector or for swapping energy feeders.
  • Available both for MV or HV application.
  • Typical application for automatic change of energy power for hospital or critical plants.
  • Assure a fast and reliable indication locally and remote avoiding use of expensive voltage transformer