Alternator Voltage Relay (Model Mini Avr) Density: 2.1 - 2.2 Gram Per Cubic Meter (G/m3)

• Adjustable ON/Trip Time (1-15sec) delay provided.
• Common setting for all the phases.
• Factory set ON/OFF Voltage differential (Back-lash)
  
• Unaffected by frequency variations.
• Positive action without chattering.
• Both Din rail & Screw mounting provided.
• Life time guarantee of the unit (conditions apply)

This is a compact micro-electronic device based on latest technology. It senses the voltage supply at its terminals and operates electromagnetic relay. The relay gets energized when all the phases are above the set value and gets de-energized when any of the phases goes below the set voltage value minu's ON / OFF differential voltage (back-lash).

For Model Mini AVR, differential voltage is factory set (7V for 1phase & 10V for 3phase)Adjustable ON & OFF-Time delays is provided for protection against transients. Voltage setting and time delay are continuously adjustable with the help of a knob over a linear calibrated dial. Two changes are provided for customer's usage. Auxiliary supply of 12VDC or 24VDC can be provided if required. Three LED's (Light Emitting Diodes) are provided on top of the unit to indicate-Voltage supply on',Relay on' and 'Under voltage' condition.

STANDARD MODELS

THREE PHASE WITH  NEUTRAL-3PN

• Voltage Setting 170-220
• ON/OFF Differential (backlash):7 Volts
• On Time Delay 1-15 Seconds
• Off Time Delay 1-15 Seconds.

THREE PHASE  WITHOUT NEUTRAL-3P

• Voltage Setting 300-400 VAC
• ON/OFF Differential (back-lash):10 Volts
• On Time Delay 1-15 Seconds
• Off Time Delay 1-15 Seconds.

TWO PHASE-2P

• Voltage Setting 300-400 VAC
• ON/OFF Differential (backlash):10 Volts
• On Time Delay 1-15 Seconds
• Off Time Delay 1-15 Seconds.

ONE PHASE 1P

• Voltage Setting 170-220 VAC
• ON/OFF Differential (backlash):7 Volts
• On Time Delay 1-15 Seconds
• Off Time Delay 1-15 Seconds.

SETTING / REPEAT ACCURACY
2% of the time and voltage setting.

MAXIMUM PERMISSIBLE OPERATING VOLTAGE
550 VAC for three / two phase system.
300 VAC for one phase system.

BURDEN
10VA (maximum)

INSULATION
The unit will withstand 2.5 KV 50 HZ for one minute between all A.C. Supply  terminals and relay connected together and body.

RELAY CONTACT RATING
6 Amps resistive load or 2 Amps inductive load at 230 VAC/440 VAC or 24 VDC

DIMENSION

• Model Mini AVR : Height 105mm, Base 52 mm x 102 mm
• Standard AVR : Height 105mm, Base 67mm x 102mm