Automatic Voltage Regulator (AVR)-R448

Price 28000.0 INR/ Piece

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Automatic Voltage Regulator (AVR)-R448 Specification

Power Rating
N/A

Output Current
4.5 10 A DC Ampere (amp)

Input Voltage
150 V AC Volt (V)

Output Voltage
160 V DC at 120 V AC Volt (V)

Efficiency
N/A

Frequency (MHz)
50/60 Hertz (HZ)

Warranty
12 MONTH

Current
, 4, ., 5, A, , t, 1, 0, , A, , o, , D, C, . Ampere (amp)

Rated Voltage
170 260 V Volt (V)

Usage & Applications
Automatic voltage regulation and excitation control for compatible brushless synchronous alternators. The R448 monitors generator voltage and adjusts excitation current to maintain stable output voltage under changing load conditions. Leroy-Somer+1 Applications: - Diesel and gas generator sets. - Industrial power-generation plants. - Standby and emergency power systems. - Alternator excitation and voltage stabilization. - Generator operation under varying electrical loads. - Parallel generator operation with suitable voltage-droop settings. - Voltage recovery and load acceptance management using the Load Acceptance Module (LAM).

Weight
0.97 kg Kilograms (kg)

Cable Type
Multicore insulated copper control cable.

Operating Temperature
30 C to +70 C Celsius (oC)

Ambient Temperature
30 C to +70 C Celsius (oC)

Degree of Protection
N/A

Display Type
Analog

Phase
Single-phase

Rated Current
10 A DC Ampere (amp)

Frequency
50/60 Hertz (HZ)

Features
Automatic generator output voltage regulation. Voltage regulation accuracy: 0.5%. Compatible with SHUNT, AREP and PMG excitation systems. Selectable 50/60 Hz frequency. Load Acceptance Module (LAM) for managing sudden load increases. Adjustable output voltage and stability. Adjustable excitation current limit. Under-frequency protection. Over-excitation and excitation overload protection. Selectable normal or fast response time. Single-phase voltage sensing; optional three-phase sensing using the R731 module. Quadrature droop adjustment for reactive load sharing. Short-circuit current capability of up to 3 rated current for 10 seconds with compatible AREP or PMG excitation systems.

Conductor
Copper traces on the electronic printed circuit board (PCB); exact material specifications are not confirmed.

Material
Insulating polymer casing

Control System
Analog electronic, closed-loop automatic voltage control.

Usage
Other

Design
Analog electronic design.

Insulation Resistance
N/A

Voltage Protection
N/A

Display
Analog

Dimension (L*W*H)
20.3 15.3 6.05 cm Centimeter (cm)

Rated Power
5 VA

Current Type
DC

Waveform Distortion
Good immunity to load-generated waveform distortion when used with compatible AREP or PMG excitation systems.

Product Type
Automatic Voltage Regulator (AVR)

Automatic Voltage Regulator (AVR)-R448 Trade Information

Minimum Order Quantity
1 Piece

Delivery Time
1 Days

About Automatic Voltage Regulator (AVR)-R448

The Leroy-Somer R448 Automatic Voltage Regulator (AVR) is an analog electronic regulator designed for automatic voltage regulation and excitation control of compatible brushless synchronous alternators. It maintains stable generator output voltage by continuously monitoring alternator voltage and adjusting the excitation current according to load variations.

The R448 supports compatible SHUNT, AREP, and PMG excitation systems, depending on the alternator configuration. It features adjustable voltage regulation, stability control, and under-frequency protection to support reliable generator operation. The regulator is suitable for industrial diesel and gas generator sets, standby power systems, and industrial power-generation applications.

The R448 AVR is installed in the alternator excitation circuit and must be selected according to the generator's rated voltage, excitation requirements, wiring configuration, and operating conditions.

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