Item specifics

Product Description

AVR SR7

SR7 self excited half wave type Genset Automatic Voltage Reg

ulator is a direct replacement avr for Mecc Alte SR7-1 and SR7-2

Wide Sensing Voltage Range 80~350 VAC

Wide Power Input Range 80~270 VAC, Accepts Power Input from Main Winding or Auxiliary Winding

Under Frequency Protection Indication LED

Over Excitation Protection and Indication LED

EMI Suppression

Specifications:

Model NO.	SR7
Sensing Input	80~350 VAC single phase 50/60 Hz
Power Input	Voltage 50~270 VAC Frequency 50/60 Hz
Output Voltage	63 VDC @ 220 VAC input
Output Current	Continuous 6A, Max. Intermittent 7A for 10 sec.
Voltage Regulation	< ±1% (with 4% engine governing)
Voltage Build-up	Residual voltage above 5 VAC 25 Hz
External Volts Adjustment	100 K Ohm 1/2 watt ±7%
Unit Power Dissipation	Max. 5 watt
Under Frequency Protection	Adjustable range 42~60 Hz
Over Excitation Protection	40~Max. VDC @ 0.3~20 sec.
EMI Suppression	Internal electromagnetic interference filtering
Excitation Winding Resistance	DC Resistance 10~100 Ohm
Environment	Operating Temperature : -40~65 °C Storage Temperature : -40~80 °C Relative Humidity : Maximum 95% Vibration : 1.5G @ 5~30 Hz / 5.0G @ 30~500 Hz
AVR Controls Function	VOLTS : Voltage Adjustment STAB : Stability Adjustment HZ. : Under Frequency Setting AMP. : Over Excitation Setting U/F : Under Frequency Protection O/E : Over Excitation Indication LED
Dimensions	97.0 (L) x 92.0 (W) x 39.0 (H) mm