Electric generator parts automatic voltage regualtor avr r250

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Place of Origin:
Fujian, China (Mainland)
Brand Name:
Model Number:
AVR R250
Brushless generator avr r250
Brushless alternator 20-100kw
single phase 2 wire
Sensing input voltage:
OEM service:
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Electric generator parts automatic voltage regualtor avr r250

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Profesional supply all these generator spare parts,avr automatic voltage regulator controller solenoid actuator speed governor battery charger and etc.


 R250 AVR controls the excitation current according to the alternator's output voltage. With 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%.It applies to brushless generator from 20-100kw.


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.

Technical data


 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 
 Threshold at 48 Hz with LAM 13% forimpacts between 40 and 70% of the rated 
 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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Related generator parts


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Payment Terms


1.We accept L/C,D/P,D/A, Alipay, West Union, TT. Cash.


2.All major Credit cards are accepted through secure payment processor ESCROW

Shippment Terms


1. We Ship to Worldwide, except APO/FPO


2. Orders processed timely after showing remittance copy.

3. We only ship to confirmed order addresses. Your order address MUST MATCH your address.


4.Items are delivered by express, reach most of the countries within 4 to 20 business days.


5.We accept the following express:



1.Guarantee:13months after selled. 


2. During guarantee,the items share free repairs or replacement.


3. Customer is responsible for the freight come-and-go,and the custom tax.


4. You may consider to send the defective item with a economical way,and we send back the repaired items with      your new order together.


5. To save the cost,pls send the item back without packing.


6. Pls provide the defective appearance and related invoice number.


7.We do not repair or replace item with an expired warranty.


8.All emails will be answered within 1 business day.


Any more questions,feel free to contact us pls.