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.

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Features

• 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: 2-30 sec
  • Star Timer: connection time for star relay(2-30 sec)
• No change in parameters affected by impacts of panel’s contactor

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Specifications

• 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