AVR ASR DER2 Original Mecc Alte Automatic Voltage Regulator
$1,098.00
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Mecc Alte ASR AVR , Mecc Alte DER2 AVR only has original one available!
The Latest-technology Mecc Alte ASR AVR (Analogic Simplified Regulator) assure an trouble-less use, a precise voltage control and an underfrequency protection.
The Mecc Alte AVR ASR is a closed loop automatic voltage regulator system, that controls and keeps constant the alternator output voltage. The output voltage of the alternator is monitored and confronted with a reference signal: the difference between the two is used to control the conduction state of an SCR.
The SCR is controlled by the width of its pulse, and resulting in a rectified DC output which is injected in the rotating inductor of the generator, generating consequently the AC output voltage.
ASR AVR is used for Mecc Alte ES and ET series generators.
Details
Characteristics
| Input power supply | 180 ÷ 280 Vac |
| Precision of voltage regulation | ± 2,5% |
| Maximum output current | 6 A |
| Working temperature | -20°C ÷ +70°C |
| Standard generator voltage regulation | 100 ÷ 280 Vac |
The Mecc Alte AVR DER2 is a voltage regulator for synchronous alternators, designed for stand alone working and calibration; the connectors for connection to and from the power generator and to the supervision unit are located on the DER2 regulator.
DER2 AVR includes natively the USB port for computer remote monitoring and control and the HDR module.
The High Dynamic Response allows a faster reduction of excitation current than conventional regulators and consequently a smaller transient overvoltage as a result of load removal.
The supervision unit can be made up of a personal computer, another “synoptic” device or both; it does not have the function of controlling the system in real time, but allows programming and visualisation of all operational parameters of the DER2 through the embedded USB port
Characteristics
| Variable voltage supply | 40 ÷ 270 Vac |
| Frequency range | 12 Hz ÷ 72 Hz |
| Precision of voltage regulation | ± 1% |
| Precision of voltage regulation (stabilized condition) | ± 0,5% |
| Maximum continuous output current | 5 Adc |
| Environmental temperature | -25°C ÷ +70°C |
| Voltage regulation | 75÷300 Vac |
| Transient voltage drop and overvoltage | within ± 15% |
| Voltage recovery time | within ± 3% of the value set, in less than 300 msec |
| Sensing | Single phase or Three phase |
| Parameters (can be programmed via software) | VOLT, STAB, AMP and Hz can be set with trimmers (default) |
| 50/60Hz through a “jumper” (default) |
Features
| Power connections through 20 poles Fast-On connector |
| Protection of power winding with 5A fast acting fuse |
| 0 ÷ 2,5Vdc or -10 ÷ +10Vdc external voltage for analogical remote control of output voltage |
| Remote control of output voltage through external potentiometer (from 25Kohm to 100Kohm) |
| Underspeed protection with adjustable threshold and slope |
| Overvoltage and undervoltage alarms |
| Excitation overcurrent protection with delayed intervention |
| Underexcitation alarm/loss os excitation |
| Management of temporary short circuits (start up of asynchronous motors) |
| High Dynamic Response: load removal management unit |
| Open collector output (not insulated) signalling some allarm intervention with programmable activation in respect of each alarm and possibility of the intervention delay and selectable active level |
| Allarm conditions storage (type of alarm, number of events, duration of the last event, total time) |
| Memorization of the regulator operation time |
| USB communications through the embedded USB port |
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