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VDT/3000 Family

VDU/3000 Family
Home › Products › StabilizersThree-phase electronic stabilizers VDT/3000 Family

Three-phase electronic stabilizer

VDT/3000 Family - Megadigistab

Three-phase digital controlled static stabilizers with star connected
independent regulators + Neutral

  • Three-phase digital controlled stabilizer
  • Totally static control
  • Patented regulating system
  • Input voltage 400 (380) V +N ±15 %, ±20 %, -30+10 %
  • Output voltage 400 (380) V + N± 1 %, ± 1,5 %
  • Frequency 50/60 Hz ± 2%
  • Obligatory to connect network neutral 
  • Input/Output on clamps or Cu bar
  • Magneto-thermal or fuse power protected
  • VDT/3003 family features phase voltage readout with 3 digit digital display
  • Input/Output LED switchover pushbutton
  • Ambient temperature –20° +40 °C
  • Waveform null distortion < 0,1 %
  • Unaffected by power load factor
  • Speed response 9 ms/V
  • EMC filters in Input and Output
  • Resistant to surge overloads 5 In. approx.
  • Forced air controlled by internal thermostat
  • Efficiency from 95 to 99 %

The VST/3000 Family, or Megadigistab, are part of the new AC/DC generation of stabilizers. 
This particular family does not have mechanical parts, thus free of movement wear, and presenting a high level of reliability and efficiency  It also maintains the quality of the regulating system with booster transformers.
The control is powered by a sophisticated microchip and simple and reliable hardware, thus allowing VARAT to design a fast, silent maintenance free machine, with very high power levels, which can reach 1,5 MVA.
The digital and static control constantly balance the input power and stabilizes the output.
This family also features a high speed response, swing free, high precision and overload free at the moment of turning on. The speed response is approx. of  9 ms/V, according to CEI 562-4 e IEC 686 standards.
The advantage of this patented system is to be able to obtain a completely static stabilizer, with reduced dimensions, insensitive to surge overloads and which corrects the output in an almost continual manner, as the electromechanical units.
This value is already very low, but also slowed down as not having to be continually regulated, caused by variable power surges.
Waveform null distortion, and thus resistant to power overloads up to 5 In..
Megadigistab, when turned on, reads and shows the voltage power and brings it to the correct preset value.
The input/output connections are on clamps or bars, depending on the power and magneto-thermal or fuse power controlled against overloads and short-circuiting. .
It also features a step-type conditioning, where the lowest level for a power voltage of 230 V is 2,3 V (1%)
The three phases are controlled separately and have a neutral reference, which is necessary for high unbalanced loads.
The control and regulating system are a VARAT patent and are used for all single and three-phase stabilizers.

Reference Number Potwer Nom.
Corr.
(A)
Dimensions Weight Kg Fig
L W H
Input voltage 400 (380) V ± 15% +N
Output voltage 400 (380) V ± 1% +N
VDT/3001 1,5 kVA 2,2 400 200 500 28 1
VDT/3002 3 kVA 4,3 400 250 600 43 1
VDT/3003 6 kVA 8,7 500 250 700 65 1
VDT/3004 9 kVA 13,0 600 250 800 73 1
VDT/3005 12 kVA 17,4 600 250 1000 86 1
VDT/3006 15 kVA 21,7 600 400 1300 92 2
VDT/3007 20 kVA 28,9 800 400 1300 142 2
VDT/3008 25 kVA 36,1 600 400 1600 163 2
VDT/3009 30 kVA 43,5 600 400 1700 205 2
VDT/3010 50 kVA 72,2 600 400 1900 228 2
VDT/3011 75 kVA 108 800 500 1900 271 2
VDT/3012 100 kVA 144 1200 600 2100 315 2
VDT/3013 125 kVA 180 1400 600 2100 375 2
VDT/3014 150 kVA 216 1400 600 2100 405 2
VDT/3015 200 kVA 288 1600 600 2100 580 2
VDT/3016 250 kVA 360 2000 800 2100 650 3
VDT/3017 300 kVA 433 2400 800 2100 1100 3
VDT/3018 400 kVA 577 2600 800 2100 1230 3
VDT/3019 500 kVA 721 2600 800 2100 1450 3
VDT/3020 600 kVA 866 3000 800 2100 1850 3
VDT/3021 800 kVA 1.154 3200 800 2100 2250 3
VDT/3022 1 MVA 1.443 3800 800 2100 3200 3
VDT/3023 1,25 MVA 1.804 4800 800 2100 3330 3
VDT/3024 1,5 MVA 2.165 5400 800 2100 4250 3
Input voltage 400 (380) V ± 20% +N
Output voltage 400 (380) V ± 1,5% +N
VDT/3201 1,5 kVA 2,2 400 200 600 39 1
VDT/3202 3 kVA 4,3 500 250 700 58 1
VDT/3203 6 kVA 8,7 600 250 800 71 1
VDT/3204 9 kVA 13,0 600 250 1000 88 1
VDT/3205 12 kVA 17,4 600 400 1300 90 1
VDT/3206 15 kVA 21,7 800 400 1300 135 1
VDT/3207 20 kVA 28,9 600 400 1600 159 1
VDT/3208 25 kVA 36,1 600 400 1700 197 1
VDT/3209 30 kVA 43,5 600 400 1900 212 1
VDT/3210 50 kVA 72,2 600 500 1900 267 2
VDT/3211 75 kVA 108 800 600 2100 308 2
VDT/3212 100 kVA 144 1200 600 2100 366 2
VDT/3213 125 kVA 180 1400 600 2100 398 2
VDT/3214 150 kVA 216 1600 600 2100 525 2
VDT/3215 200 kVA 288 2000 800 2100 615 3
VDT/3216 250 kVA 360 2400 800 2100 1095 3
VDT/3217 300 kVA 433 2600 800 2100 1188 3
VDT/3218 400 kVA 577 2600 800 2100 1386 3
VDT/3219 500 kVA 721 3000 800 2100 1894 3
VDT/3220 600 kVA 866 3200 800 2100 2266 3
VDT/3221 800 kVA 1.154 3800 800 2100 3355 3
VDT/3222 1 MVA 1.443 4800 800 2100 3852 3
Input voltage 400 (380) V –30% +10% +N
Output voltage 400 (380) V ± 1,5% +N
VDT/3301 1,5 kVA 2,2 400 200 600 35 1
VDT/3302 3 kVA 4,3 500 250 700 58 1
VDT/3303 6 kVA 8,7 600 250 800 73 1
VDT/3304 9 kVA 13,0 600 250 1000 81 1
VDT/3305 12 kVA 17,4 600 400 1300 99 1
VDT/3306 15 kVA 21,7 600 400 1300 145 1
VDT/3307 20 kVA 28,9 600 400 1600 205 1
VDT/3308 25 kVA 36,1 600 400 1700 225 1
VDT/3309 30 kVA 43,5 600 400 1900 247 2
VDT/3310 50 kVA 72,2 800 500 1900 295 2
VDT/3311 75 kVA 108 1400 600 2100 390 2
VDT/3312 100 kVA 144 1400 600 2100 475 2
VDT/3313 125 kVA 180 1600 600 2100 620 2
VDT/3314 150 kVA 216 2000 800 2100 735 3
VDT/3315 200 kVA 288 2400 800 2100 1150 3
VDT/3316 250 kVA 360 2600 800 2100 1380 3
VDT/3317 300 kVA 433 2600 800 2100 1550 3
VDT/3318 400 kVA 577 3000 800 2100 1980 3
VDT/3319 500 kVA 721 3200 800 2100 2330 3
VDT/3320 600 kVA 866 3800 800 2100 3280 3
VDT/3321 800 kVA 1.154 4800 800 2100 3420 3
VDT/3322 1 MVA 1.443 5400 800 2100 4300 3

Patented System No. 01309253 - No. 00109610.6

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