automatic ac voltage regulator

Three / Single Phase Automatic Voltage Regulators avr M40FA640A for Marelli Generator

1.Marelli AVR M40FA640A

The voltage regulator type “MARK I”, is suitable for Synchronous Generators of MARELLI MOTORI make, MJB series, size range 160-500 frames. This regulator is proper to operate on machines rated from 10 up to 2000 kVA. The regulator is fully insulated in order to maintain high reliability also with severe ambient conditions (high level of humidity, dust, salt atmosphere), and in case of high vibrations level. The regulator is proper both for single
and 3-phase operation.

2.Marelli AVR M40FA640A Technical specifiCAT-parts-partsion:

PRECISIONE DI REGOLAZIONE : ±0.5% a regime, per valori di tensione e carico nominali
REGULATION ACCURACY steady state conditions, for rated Voltage and PF

DERIVA TERMICA ±0.5% variazione di tensione per variazione Tamb 50°C
VOLTAGE DRIFT: of voltage change for 50°C T amb change

TEMPO DI RISPOSTA: 1 ciclo (20ms-16.6ms)
RESPONSE TIME: 1 cycle (20ms-16.6ms)

TEMPERATURA DI ESERCIZIO -30°C ÷ +70°C
OPERATING TEMPERATURE:

RESISTENZA DI CAMPO ECCITATRICE 3.5Ω (min) ÷ 20Ω (max)
EXCITER FIELD RESISTANCE:

DATI DI INGRESSO E USCITA:
INPUT/OUTPUT DATA:
-TENSIONE DI ALIMENTAZIONE: 170 - 277V (50/60Hz)
-SUPPLY VOLTAGE:

-POTENZA DI ALIMENTAZIONE: 1000 VA (max)
-POWER SUPPLY:

-POTENZA DISSIPATA: 30 W (max)
-POWER DISSIPATED:

-RILIEVO DI TENSIONE TRIFASE : 170 - 270 / 380 - 415 / 440 - 480 V
-VOLTAGE SENSING: (Three or Single Phase Sensing)

-TENSIONE DI USCITA (DC): 80V (max, servizio continuo)
-OUTPUT VOLTAGE (DC):

-CORRENTE DI USCITA (DC): 8A (max, servizio continuo)
-OUTPUT CURRENT (DC): (max, continuous)

-CORRENTE DI USCITA (DC): 15 A (max, in forzamento 1 minuto)
-OUTPUT CURRENT (DC): (max 1 minute forcing)

APPLICAT-parts-partsION

M40FA640A Automatic Voltage Regulator is developed by Marelli suitable for Three-phase Synchronous Generators. Which is provided with internal circuits in order to reduce the excitation, when running at low speed, in order to avoid damages to the excitation system of the generator.

INPUT/OUTPUT DATA:

1) Supply Voltage:170-277V(50/60Hz)

2) Power Supply:1000 VA (max)

3) Power Dissipated:30W (max)

4) Voltage Sensing:170-270/380-415/440-480V

(three or single phase sensing)

5) Output Voltage(DC): 80V (max, continuous)

6) Output Current(DC):8A (max, continuous)

7) Output Current(DC):15A (max 1 minute forcing)

8) Regulation Accuracy: +/-0.5% steady state conditions, for rated voltage and PF

9) Voltage Drift: +/-0.5% of voltage change for 50°C T amb change

10) Response Time: 1 cycle (12ms-16.6ms)

11) Operating Temperature: -30°C- +70°C

12) exciter Field Resistance: 3.5Ω (min)-20Ω (max)