Shiva Amvaj Super Monitoring Relay

Shiva Amvaj Super Monitoring Relay protects the power system against over/under voltage, phase asymmetry, or phase reversal. Each disruption has its dedicated indicator.

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Features

• No use of neutral enables accurate monitoring of the power system (occasionally neutral may be electrified)
• Protection:
  • Over/under voltage
  • Phase asymmetry and phase reversal
  • Phase interrupts
• Indicators:
  • U: grid electricity
  • ON: relay connect
  • ΔU: phase asymmetry
  • >U: over voltage
  • <U: under voltage
  • P: phase reversal
• Adjustable asymmetry and delay parameters
• No change in parameters due to panel contactor impacts

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Specifications

• supply/input voltage: 300-500 VAC/3PH/50-60 Hz
• Disconnect at
  • Over voltage: 400-480V
  • Under voltage: 300-380V
  • Asymmetry: 7-25%
• Delay
  • Connect: 2-240 sec
  • Disconnect: 0-10 sec
  • Disconnection for under voltage at the start: 5 sec + disconnect delay
• Operating conditions
  • Temperature: -20 to 65 ^oC
  • Humidity: 70%
• Output: two 5A relays