Electronic Regulator D350 Leroy Somer

The AVR D350 is a digital voltage regulator.

- Voltage regulation:

- With or without reactive power compensation to enable parallel operation of the
machine in parallel.
- With or without line drop compensation.2
- Field current regulation or manual mode, which allows direct control of the field current value. of the field current value.

The D350 can also be used to:
- Set the reference of the current regulation mode by using an analogue input (0-10 V and potentiometer).Analogue input (0-10 V and potentiometer)
- Temperature sensor monitoring (Pt100 or CTP)
- Limiting the minimum field current provided to the driver field
- Monitoring of the maximum stator current limit
- Voltage loss detection
- Support sudden short-circuit for max. 10 seconds in AREP, PMG
- Signal monitoring (event logger)
Different elements of measurement data, shutdowns and regulation modes can be output on the 2 digital outputs.
- Alternator voltage detection:
- 3-phase without neutral, 2-phase or 1-phase with neutral.
- Three-phase range 0-530 V AC
- Consumption < 2 VA
- Stator current measurement with current transformer:
- Range 0-1 A or 0-5 A
- Consumption < 2 VA
- Power supply:
- AC:
- 4 terminals for PMG, AREP, SHUNT
- Range 50-277 V AC
- Maximum consumption < 3000 VA
- DC (unmanaged preload):
- Range 50-400 V DC
- Maximum consumption < 3000 VA
- Field excitation
- Nominal 0-5 A
- Short circuit 10 A max.
- Field winding resistance > 4 ohms
- Frequency
- Range 10-100 Hz

- Regulation accuracy: +/-0.25 % of the average of the three phases at a linear load, with a harmonic distortion of less than 5 %.
- Voltage setting range: 0 % to 150 % of rated voltage
- Droop setting range: -20 % to 20 % of rated voltage
- Underfrequency protection: integrated, adjustable threshold, adjustable slope from 0.5 to 3 x V/Hz in 0.1 V/Hz steps
in steps of 0,1 V/Hz
- Excitation limit: adjustable via 3-point setting
- Environment: ambient temperature from -40 °C to +65 °C, relative humidity less than 95 %, non-condensing, mounted in a cabinet condensation, mounted in a cabinet or terminal box.
- AVR parameters set with "EasyReg Advanced" software provided by Leroy-Somer
- Dimensions:
- Height: 52.9 mm
- Width: 125 mm
- Length: 140 mm
- Mounting:
- Hole spacing in the length: 115 mm
- Hole spacing in width: 100 mm
- Weight: 0.45 kg
- Conformity to standards:
- EMC: IEC 61000-6-2, IEC 61000-6-4
- Moisture: IEC 60068-1 and test according to IEC 60068-2-14
- Dry heat: IEC 60068-2-2
- Damp heat: IEC 60028-2-30
- Cold: IEC 600068-2-1