Shiva Amvaj Monitoring Relay

Shiva Amvaj Monitoring Relay monitors the following functions on 3-phas supplies:

Under\over voltage
phase sequence
phase asymmetry
phase less

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Features

• Accurate control over power grid due to lack of neutral utilizing (as neutral may occasionally contain electricity)
• Protection:
  • Over/under voltage
  • Phase sequence and asymmetry
  • Phase less
• Indicators:
  • AC: grid electricity
  • REL: relay status
  • F: over/under voltage and phase asymmetry
  • P: phase reversal
• Adjustable asymmetry and on-delay parameters
• No change in adjusted parameters due to contactor impacts

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Specifications

• Supply voltage: 300-500 VAC/3PH/50-60 Hz
• Disconnect at
  • Over voltage: 440V
  • Under voltage: 310V
  • Asymmetry: 7-25%
• Delay
  • On delay: 2-240 sec
  • Off delay: 3 sec
  • Delay start (because of under voltage ): 10 sec
• Operating conditions
  • Temperature: -20 to 65 ^o C
  • Humidity: 70%
• Relay output: 5A