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AVR - Automatic Voltage Regulator AVC125-10

AVR - Automatic Voltage Regulator AVC125-10

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AVC125-10 AVR regula el nivel de excitación suministrado al campo de un generador sincrónico convencional, sin escobillas. La regulación se logra detectando el voltaje de salida del generador, convirtiéndolo en una señal de CC y comparando la señal con un voltaje de referencia. Se desarrolla una señal de error y se usa para controlar la potencia de campo de CC con el fin de mantener una salida constante del generador. Cada regulador incluye compensación de frecuencia con pendiente seleccionable, apagado de sobreexcitación en tiempo inverso, circuitos de acumulación, detección de voltaje monofásico o trifásico, derivación monofásica o trifásica o entrada de potencia del generador de imán permanente (PMG), compensación de caída paralela y una entrada accesoria. La entrada de accesorios proporciona compatibilidad con dispositivos tales como controladores de factor de potencia var/o limitadores de excitación.

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AVR - AVC125-10 is the automatic voltage regulator of the generator: it reads the output voltage and corrects the field excitation so the voltage stays stable as the load changes.

A failing AVR shows up before it dies: voltage dips 5–30 V when a large motor starts, lights flicker, or the control panel reboots. When it fails completely the set delivers only residual voltage or trips on overvoltage.

Specifications and compatibility

Applicable to
BASLER ELECTRIC
Dimensions
22 x 6 x 13 cm
Weight
1.50 kg

How to verify before ordering

  • Check that the reference printed on the AVR label (for example AS440, MX341, R120) matches exactly; variants differ in sensing range and excitation level.
  • Confirm the excitation input voltage and the generator type it serves. They are not interchangeable across generator makes or speed ranges.
  • Inspect wiring and brushes before replacing the module: a loose connection produces exactly the same symptoms as a burnt AVR.

Frequently asked questions

How do I know the fault is the AVR and not the generator?

Measure output voltage at steady load. If it is low and does not respond to the excitation trim, while windings and rotating diodes are healthy, the AVR is the suspect. A cross-test with a spare AVR confirms it in minutes.

Can the voltage be trimmed after installation?

Yes. Most of these regulators have a voltage and a stability trim pot. Set them at no load to the site nominal voltage, then verify under load before signing off.

Related parts

See the spare parts catalogue or request a quotation quoting the equipment reference. Third-party trademarks are cited for identification purposes only.

Specifications

Characteristics
Applicable To BASLER ELECTRIC
Weight 1,50 kg
Dimensions 22 x 6 x 13 cm
Spare Parts
Generator Parts AVR