Holdwell generator AVR for Stamford generator

Automatic Voltage Regulator

Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.

In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.

The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%.

In addition to being powered from the main stator, the AVR also derives a sample voltage from the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.

A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point, (UFRO). This can easily be changed to 50 or 60 Hz in the field by pushon link selection.

SX440 Stamford AVR is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.

In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.

 AS440 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brush-less generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR. 

Clearly information about AVR

Clearly information about AVR

 More Clear information about AVR

Focus on Truck and generator Parts Solution

With an aim of ensuring maximum efficiency and quality of Holdwell products and servive,we build global cooperation with our partners and constantly develop and promote innovation on both sides.

Our total quality management in purchasing is based on the transfer of purchasing requirements of our customers to suppliers.We carefully follow the requirements of standard TS16949 and the European Business Excellence Model(EFQM.)

1. Q: Are you a factory or trading company?

A: We are a trading company with factory.

2. Q: Where is your company located? How can I visit there?

A: Our company is located in Hangzhou, Zhejiang, China, near Shanghai. You are warmly welcomed to visit us!

3. Q: How can I get some samples?

A: Please connect me for samples, and my phone number: +86 18768106189

4. Q: Can the price be cheaper?

A: Of course, you will be offered a good discount for big amount.

Payment Terms