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AVR Mecc DER1

AVR Mecc DER1

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DER1

Born as a DSR evolution, it is building is extra feature such as single and three phases sensing automatic detection, higher flexibility in remote voltage control, soft start and a voltage precision of 0.5% in static condition.

The connectors for connection to and from the power generator and communications module are located on the DER1 regulator. 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 DER1.

Since the regulator is designed to control many different types of generators, it must be appropriately configured to obtain the best performance most of the settings are stored in a non-volatile integrated memory (EEPROM)

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 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)
Open collector output (not insulated) signalling some allarm intervention with programmable activation in respect of each alarm and possibility of the intervention delay and able 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 interface (with optional USB2DxR module)

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