อุปกรณ์ควบคุมแรงดันไฟฟ้าอัตโนมัติ (M40FA640A, M16FA655A)

We also manufacture:

Stamford: SX460 SX440 AS440 AS480 MX341 MX321 WA440-T

Leroy somer: R230 R250 R448 R449 R450 R438

etc.

1. VR6
VR6 controls the DC exciter field power of conventional, 50 or 60 Hz brushless genera tors. The regulator(VR6) includes frequency compensation with selectable slope, inverse time over-excitation shutdown, solid-state build-up circuitry, single-phase or three-phase voltage sensing, single-phase or three-phase shunt, or permanent magnet power input, and parallel droop compensation, and an accessory input. The accessory input provides compatibility with accessories such as a var/power factor controller.

2. VR6 Technical specification:

Input:
Voltage, rated 120 V 240 V
Voltage, limits 90-140 V 180-280 V
Frequency 50-240 Hz 50-240 Hz
Burden (at rated V) 1440 VA 2400 VA

Output:
Voltage, continuous 65 Vdc 125 Vdc
Voltage, forcing 10 sec. 100 Vdc 200 Vdc
Current, continuous 12 ADC 10 ADC
Current, forcing 10 sec. 25 ADC 20 ADC
Min. Feld resistance 4 Ohms 10 Ohms
Sensing: 100 to 120 V +/-10% with standard 10K Ohm control, 1 phase or 3 phase, 50/60 or 400 Hz;
Paralleling: 1 A or 5 A for 6% droop maximum; 10 VA maximum burden;
Regulation accuracy: +/- 0.5% maximum;
Under frequency protection breakpoints: Adjustable 45 to 65 Hz;
Regulator response: Less than 4 milliseconds;
Thermal stability: Less than 0.5% per 40° Ambi-ent temperature change;
Power dissipation: Less than 50 W at maximum continuous rating.

The voltage regulator type "MARK V", is suitable for Synchronous Generators of MARELLI MOTORI make, MJB series, size range 160-225 frames.

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 generators.