AVR R150 Automatic Voltage Regulator for Diesel Generator

(2 customer reviews)


Availability: 4 in stock

**Genuine Alternative:** This is a high-quality aftermarket replacement for the Leroy Somer Voltage Regulator R150 AVR

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AVR R150 Automatic Voltage Regulator Replace for Diesel Generator Alternator Genset
The main function is to stabilize and regulate the voltage of the generator.


AVR R150 Automatic Voltage Regulator for Diesel Generator


1) Sensing input

– Voltage: 240 V AC ±10% for 1 phase, 380 V up to 480 V AC ±10% for 3 phase, 2 line sensing AVR Senses true average of the line to line waveform. Use Resistor (SMD) network for trouble free sensing & control of sensed voltage / regulation.

2) Input power

– Voltage: 415V for 3 phase and 240V for 1 phase

– Frequency: 50/60 Hz

3) Output power

– Voltage: 105 V DC at 240V AC Input

– Current:

6 Amps DC Continuous

8 Amps for 30sec. (when allowed by field resistance)

4) Operating temperature: -20ºC to +70ºC

5) Storage temperature: -40ºC to +80ºC

6) Voltage adjustment: min ± 10% of rated voltage.

7) Stability adjustment: adjustable to get Steady state Stability good transient response.

8) Remote Voltage adjustment: to get ±10% of set terminal voltage (with 2W / 2.5W , 1 Watt pot).

9) Droop for parallel operation: 4% droop for 5 Amps from «U» phase.

10) Auxiliary input A1 & A2: ±4.5V DC will give change in terminal voltage by ±10%.

11) Under frequency roll – off adjustment: available below 46 Hz for 50 Hz & below 56 Hz for 60 Hz.

12) Voltage Build up: ≥ 2 Volts (L-N)

13) Voltage regulation: ± 0.8% at AVR terminals.

14) Thermal drift: ± 1% for 30º C change in temperature.

15) Response time: less than 50 milli seconds.

16) Closed loop response: typically 0.5sec to recover to 98% of the set voltage for a field forcing ratio of 1:2.

17) Sense Loss protection: voltage should collapse, when the sensing circuit is open.

18) Over excitation protection: 10V DC to 85V DC. Set point : 60 V DC

19) Fuse for protection: 6 Amps, 240 Volts AC.

20) All potentiometers: multi-turn except Droop pot (Droop-single turn)

21) Sealing of Potentiometers: except V – trim pot all pots are sealed.

Find out more generator Automatic Voltage Regulator

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2 reviews for AVR R150 Automatic Voltage Regulator for Diesel Generator

    May 1, 2023
    This device is absolutely rock-steady and dependable. From what I've scoped out, it's a fantastic option.Excellent seller, All the best!
    August 14, 2022
    Reliable supplier are suppling many kinds parts with good price.The shipment was prompt and the goods were delivered on time.
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