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US Electrification
Numerical Relays
Industrial Solutions

Numerical Relays

Numerical relays are based on the use of microprocessors. The first numerical relays were released in 1985.

 

A big difference between conventional electromechanical and static relays is how the relays are wired. Electromechanical and static relays have fixed wiring and the setting is manual. Numeric relays, on the other hand, are programmable relays where the characteristics and behavior can be programmed. Most numerical relays are also multifunctional.

 

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Scope

  • Modern protection relays
  • Multifunctional protection
 

Benefits

  • Provide continuity of power to consuments
  • Protection of network assets
  • Protection against life-threatening electrical incidents
 

Features

  • Self-checking facility
  • Low burden relays improve accuracy
  • Fast fiber optical communication with substation LAN
  • Adaptive relaying schemes
  • Permit storage of historical data
  • Time stamping

 

Products

  • Alarm annunciators
  • Busbar protection
  • Capacitor and filter bank protection
  • Feeder protection and control
  • Multiapplication protection and control
  • Power generator protection and control
  • Monitoring devices
  • Motor protection and control
  • Remote I/O and merging units
  • Transformer protection and control
  • Voltage protection and control

 

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