Shiva Amvaj Star-Delta Monitoring Relay

Shiva Amvaj Star Delta Monitoring Relay is a convenient device to activate cage-rotor motors with converting star to delta protected to gride’s electricity fluctuation.


  • Protection
    • Under/Over Voltage
    • Phase sequence and asymmetry
    • Separate phase loss
  • 6 indictor to announce
    • ON:
      • Slow blinking: grid’s electricity
      • Fast blinking: delay-on
      • Fixed light: device is ready to start
    • F:
      • Slow blinking: phase asymmetry
      • Fast blinking: over voltage
      • Fixed light: under voltage
    • No phase sequence-phase loss:P
    • M relay connection:M
    • : Star relay connection
    • :Delta relay connection
  • 3 screw for adjusting
    • Unbalance: adjusting asymmetry(7-25%)
    • On Delay: 2-30sec
    • Star Timer: connection time for star relay(2-30sec)
  • No change in parameters affected by impacts of panel’s contactor

  • Supply voltage: 180-250 VAC /T-N/50-60 Hz
  • Input voltage : 300-500VAC/3PH/50-60 HZ
  • Disconnection for: 
    • Over voltage: 440v
    • Under voltage: 300v
    • Asymmetry: 7-25%
  • Off Delay: 3sec
  • Time interval between star relay disconnection and delta relay connection : 50msec
  •  Operation condition:
    • Temperature: -20 to 65 oC
    • Humidity: 70%
  • Output:  three 16 Ampere relay

 

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