Combined Under / Over Voltage & Frequency Relay-256-PHV - 1038

Protector Relays

Combined Under / Over Voltage & Frequency Relay-256-PHV - 1038

Availability: In Stock
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  • Category: Tools & Instruments
Rs. 3,310.00
Since speed is proportional to the frequency, this protector can be used to protect for :
  • Over frequency
  • Under frequency
  • Over speed
  • Under speed
  • Under voltage
  • Overvoltage
  • Gen-sets - to monitor the correct operation of the AVR (Automatic Voltage Regulator) & excitation system & the engine speed controller (Governor)
  • Motors - Some electric motors are voltage sensitive, & can overheat & burn out when operated at low voltages. Synchronous motors rotate at speed proportional to line frequency. Use these relays to ensure correct running speed.
  • UPS supplies - when the main A.C. supply falls outside the acceptable operating voltage window, the relays can initiate a changeover to an alternate or standby supply.

 

  • Adjustable set-point
  • Adjustable Time Delay
  • Internal differential ( factory Settable )
  • LED trip indication
  • 2 pole relay contacts
  • Energize/DE-energize function swapping
  • Auto Reset

 

Datasheet  User Manual