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AVR R250

Brief introduction:

R250 avr for generator china excitation system avr R250 AVR controls the excitation current according to the alternator's output voltage. With a very simpl...MORE >>

Classification:LEROYSOMER AVR R250

Size:20X15X10 cm

Weight:1KG

Price:

Introduction

R250 avr for generator china excitation system avr

 

 

R250 AVR controls the excitation current according to the alternator's output voltage. With a very simple conception, the shunt excitation alternator is auto excited with a R250 and excitation alternator does not have a short circuit capacity, voltage regulation: around ±0.5%.

1.Leroy Somer Automatic Voltage Regulator R250
2. Suits leroy somer brushless alternator
3.Analogic Automatic Voltage Regulator with transistor

4.Applications Alternators LSA 42.2, 43.2, 44.2, 46.2, 47.2. Compatible with the SHUNT excitation system. The R250 is in Compliance with: IEC, VDE, NEMA, BS, CSA, UL508 CE low voltage.

 Voltage regulation  Around ± 0.5 %
 Supply range  85 to 139 V
 Potentiometer for voltage setting  1000Ω /0.5W min. setting range ±5%
 Operating at 50 Hz  Threshold at 48 Hz without LAM forimpactsbetween 30 and 40% of the rated 
 Load
 Threshold at 48 Hz with LAM 13% forimpacts between 40 and 70% of the rated 
 Load.
 Threshold at 48 Hz with LAM 25% for impacts > 70% of the rated load
 Operating at 60 Hz  Threshold at 58 Hz without LAM forimpacts between 30 and 40% of the
 Rated load
 Threshold at 58Hz with LAM 13% for impacts 40 and 70% of the rated load
 Threshold at 58Hz with LAM 25% for impacts > 70% of the rated load
 Specific operating  Threshold at 57Hz without LAM for speed variations at a steady state > 2 Hz
 Threshold at 65Hz without LAM for speed and tractelec / gearlec (U/F gradient)
 Special: the factory setting 48Hz 2U/F gradient; a special programme is 
 Possible on request.
 Threshold at 47.5 Hz without LAM for speed variations at a steady state > 2 Hz
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