• K.S. LIM
    Your genset and ATS are working well. I have given your name and email to a friend who will be building a hotel in Palawan. Thanks,
  • Waleed-Egypt
    Thanks always giving me good products. thanks for your effort you done before. your firend from Egypt.
  • Akakulubelwa Mwiyakui-Zambia
    I must confess you have a brilliant customer relations skills and i am learning from you. I tell you if you want to see how beautiful Zambia in Africa
Contact Person : Jenny lai
Phone Number : 13058566006

MX321 AVR Automatic Voltage Regulators , 85-139V AC

Place of Origin China OEM and USA
Brand Name Stamford
Certification CE/RoHs/ISO9001
Model Number MX321
Minimum Order Quantity 1-5 pieces
Price Negotiable
Packaging Details Standard plywood and wood package.the actual package size against goods size and handle requires.
Delivery Time one weeks on receipt of official sales contract
Payment Terms L/C,D/P,D/A, Alipay, West Union, TT. Cash,Paypal
Supply Ability 500 pieces per Month
Product Details
High Light

avr automatic voltage regulators

,

automatic voltage regulator circuit

Leave a Message
Product Description

 

 

 

MX321 AVR Automatic Voltage Regulators , 85-139V AC

 

  1. Model Number :MX321
  2. Voltage: 190-264 AC max, 2 or 3 phase
  3. Ferquency: 50-60Hz nominal
  4. Power input(pmg)
  5. Voltage: 170-220 AC max, 3 phase, 3 wire
  6. Current: 3a/phase
  7. Frequency: 100-120Hz nominal

 

MX321 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator.

 

Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of non-linear loads and to reduce radio frequency interference on the generator terminals.

 

Three phase RMS sensing is employed for superior voltage regulation. Adjustable Soft start circuitry is included to provide a smooth controlled build up of generator output voltage.

 

A frequency measuring circuit continually monitors the shaft speed of the generator and provides under-speed protection of the excitation system by reducing the generator output voltage proportionally with speed below a pre-settable threshold. A further enhancement of this feature is an adjustable volts per Hertz slope and voltage recovery time, to improve the response of turbo charged engines.

 

Current limiting may be included to allow control over the amount of sustained short circuit current.

 

Maximum excitation is limited to a safe period by internal shutdown of the AVR output device. This condition remains latched until the generator has stopped.

 

The AVR includes an over-voltage protection feature with internal shutdown of the AVR output device, plus the ability to trip an optional excitation circuit breaker if required. Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output.

 

An analogue input is provided allowing connection to a Newage Power Factor controller or other external device with compatible output.

 

The AVR has the facility for droop CT connection, to allow parallel running with other similarly equipped generators.

 

Sensing input


Voltage: 190-264 AC max, 2 or 3 phase


Ferquency: 50-60Hz nominal


Power input(pmg)


Voltage: 170-220 AC max, 3 phase, 3 wire


Current: 3a/phase


Frequency: 100-120Hz nominal

Output


Voltage max: 120v DC


Current continuous: 3.7a


Intermittent: 6a for 10 secs


Resistance: 15 ohms minimun.