automatic ac voltage regulator,
automatic voltage regulator circuit
Brushless Alternator Automatic Voltage Regulators avr mx321 for Stamford Alternator
MX321 is a three phase, thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes protective features to ensure safe reliable control of the generator. This AVR is used only in conjunction with permanent magnetic type alternators. Excitation power is resulting from a three-phase permanent magnet generator(PMG), to Separate the AVR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals, Sustained generator short circuit current is another feature of the PMG system. The AVR senses the voltage in the foremost generator winding and controls the excitation to keep the generator output voltage within the specified limits, compensating for load, velocity, temperature and power factor of the generator, 3 phase RMS sensing is employed for advanced voltage regulation.
types alternator avr is used in diesel generator,Brand:Stamford
types alternator avr is used in diesel generator
1.Stamford / Newage avr MX321
1. High quality and best price
2. Good reputation and service
3. Fast delivery time
4. MOQ: 1PCS
2.Packaging & Delivery Packaging
Plastic bag and Carton for types alternator avr.
Delivery Time: 7 days
|Voltage:190-264V ac max,2 or 3phase|
|Voltage:140-220V ac max, 3phase, 3wire|
|Frequency :100-120 Hz nominal|
|Voltage:max 120V dc|
|Current:continuous 3.7 A/ Intermittent 6 A for 10 secs.|
|Resistance:15 ohms minimum|
|REGULATION :+/- 0.5% RMS with 4% engine goveming|
|THERMAL DRIFT:0.02% per deg. C change in AVR ambient.(After 10 minutes.)|
|SOFT START RAMP TIME:0.4 - 4 seconds|
|EXTERNAL VOLTAGE ADJUSTMENT:+/-10% with 5 k ohm 1 watt trimmer|
|UNDER FREQUENCY PROTECTION:Set point 95% Hz/Slope 100-300% down to 30 Hz/Max. Dwell 20% volts/S recovery|
|UNIT POWER DISSIPATION:18 watts maximum|
|ANALOGUE INPUT:Maximum input +/- 5 Vdc/Sensitivity 1v for 5% Generator Volts (adjustable)/Input resistance 1k ohm|
|QUADRATURE DROOP INPUT:10 ohms burden/Max. sensitivity: 0.22 A for 5% droop 0PF/Max. input: 0.33 A|
|CURRENT LIMIT INPUT:10 ohms burden/Sensitivity range: 0.5 – 1A|
|OVER VOLTAGE DETECTOR INPUT:Set point: 300v. Time delay: 1 Sec (fixed)/CB trip coil volts: 10-30 vdc/CB|
|trip coil resistance: 20-60 ohms|
|OVER EXCITATION PROTECTION:Set point 75 V dc/Time delay 8-15 seconds (fixed)|
|Dimensions:135.0 (L) x 100.0 (W) x 45.0 (H) mm|
It is used for brushless generator sets.
We also provide other models of AVRs as follows:
Leroy Somer: R230;R250;R448;R449;R438
Siemens: 6GA2-490-0A; 6GA2-491-1A
Basler: EA63-4; EA63-7
for brush generator: STL-3
OEM service acceptable.
Why Choose Us?
1.Gold Supplier on Alibaba for 5 Years → Reliable Supplier with Good Reputation
2.Factory Direct Sale → Competitive Price & Full Stock
3.Quality Control → High Quality
4.Low MOQ → Accept Small Order
5.Accept OEM → Produce Products as Customers' Requirements
6.Fast Delivery → Delivery within 3 Working Days
7.Various Payment Methods → Easy to Pay
8.Changing or Refunding → Accept Returns
OEM service is acceptable.
1.We accept L/C,D/P,D/A, Alipay, West Union, TT. Cash.
2.All major Credit cards are accepted through secure payment processor ESCROW.
1. Guarantee:1 year after selled.
2. During guarantee,the items share free repairs or replacement.
3. Customer is responsible for the freight come-and-go,and the custom tax.
4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together.
5. To save the cost,pls send the item back without packing.
6. Pls provide the defective appearance and related invoice number.
7.We do not repair or replace item with an expired warranty.
8.All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email or give us a call any time.
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