R448GP Alternative Leroy-Somer Automatic Voltage Regulator

R2,075.75 Incl. Vat

All machinery protected by the AVR will receive a constant voltage and the AVR will control current by using power electronic devices. Generally a small part of the generator’s output is used to provide current for the field winding. Where a generator is connected in parallel with other sources changing excitation has more of an effect on the reactive power produced by the generator than on its terminal voltage. These units are of immense importance in protecting modern machinery.

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SKU: R448GP Category:
Description

Description

An automatic voltage regulator allows the user to set the voltage required on the input of power to machinery. This protects the machines from a voltage spike or drop, both of which will damage sensitive electronic components. The AVR will sustain the set voltage and maintain a constant voltage level. The voltage remains constant even though the load on the generator changes. The first voltage regulators were electromechanical systems but the modern automatic voltage regulator is a solid state system. It is a feed back control system that measures the output voltage of the generator. It compares this with a set point and generates an error signal that is used to adjust the excitation of the generator.

Benefits of the R448 Leroy-Somer Automatic Voltage Regulator

All machinery protected by the AVR will receive a constant voltage and the AVR will control current by using power electronic devices. Generally a small part of the generator’s output is used to provide current for the field winding. Where a generator is connected in parallel with other sources changing excitation has more of an effect on the reactive power produced by the generator than on its terminal voltage. These units are of immense importance in protecting modern machinery.

Characteristics of the R448 Leroy-Somer Automatic Voltage Regulator

This unit has shunt power supply of a maximum 150 Volts at 50 or 60 Hertz. It has electronic protection in the event of an overload, short circuit or loss of voltage sensing and acts to restore the value of the excitation current to 1 Amp after 10 seconds. The alternator or generator must be stopped in order to reset the protection. It has voltage sensing of 5VA and voltage regulation of around 0.5 %. It has voltage adjustment via a potentiometer and has quadruple droop adjustment for generators in parallel. It also has an adjustable response time and excitation current ceiling. It also incorporates a soft start function which allows the load to rise without undue stress on the power units.

Additional information

Additional information

brand

Alternative Leroy-Somer

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Shipping & Delivery
Generator Parts Online Shop provides delivery anywhere in South Africa. We are based in 79 De Beer Street, Alrode South, Johannesburg. Pricing is based on your area, and the weight of the product, our standard pricing in Gauteng is R99 and R199 for other regions. Please note that heavier products like the Alternators and G-Drive Engines, Start from R3500+. Self Collection or Own Courier Services are also available at checkout.