RISH Relay-V Voltage Protection Relay

RISH Relay-V Voltage Protection Relay

RISH Relay-V Voltage Protection Relay
Brand: RISHABH
Category: SwitchGear, Relays & Diode

RISH Relay V is used to protect against Over Voltage, Under Voltage, Phase Sequence detection, Phase Failure detection conditions.

Features

  • Over voltage protection
  • Under voltage protection
  • Single phasing protection
  • Phase incorrect sequence protection
  • 4 Digits ultra bright 7 Segment LED Display
  • Trip relay cum DPM with Class 0.5
  • True RMS measurement
  • Previous fault Storage
  • LED Indication


    Applications 
  • Over voltage
  • Under voltage
  • Start up standby generators
  • Operation of mains failure units
  • Switching standby hybrid supplies
  • Protecting computer supplies
  • Close control of equipment
  • Gensets - to monitor correct operation of the AVR (Automatic voltage regulator) and excitation system
  • Motors-Some electric motors are voltage sensitive, and can overheat and burn out when operated at low voltage
  • UPS supplies - When the main A. C. supply falls outside the acceptable operating voltage window the relay can initiate a change over to an alternate or standby supply
  • Motors - Single Phasing
  • Incorrect sequence connection

Input Voltage

Nominal Input Voltage (AC RMS) 600VL-L (346.42VL-N)

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Max Continuous Input Voltage 127% of PT Secondary

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System PT Secondary Values 100VL-L to 600 VL-L programmable on

site

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System PT Primary Values 100VL-L to 1200 kVL-L programmable on

site

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Input Voltage Burden < 0.6VA approx.

Auxiliary Supply

External Higher Aux 60 V – 300 V AC/DC

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Higher Aux Nominal value 230 V AC/DC 50/60 Hz for AC Aux

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OR

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External Lower Aux 20 V – 60 VDC / 20 V – 40 VAC

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Lower Aux Nominal value 48 VDC / 24 VAC 50/60 Hz for AC Aux

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Aux Supply Frequency 45 to 66 Hz range

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Aux Supply Burden < 4VA approx.

Overload Withstand

Voltage 2 x rated value for 1 second, repeated 10

times at 10 seconds

Operating Measuring Ranges

Voltage Range 20...125% of PT Secondary

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Frequency 40...70Hz

Reference condition for Accuracy

Reference Condition 23°C +/- 2°C

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Input waveform Sinusoidal (distortion factor 0.005)

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Input Frequency 50 or 60 Hz ±2%

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Auxiliary supply voltage Nominal Value ±1%

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Auxiliary supply frequency Nominal Value ±1%

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