Description
Servo Controlled voltage stabilizer is made up of toroidal transformer (variable transformer), BUCK-BOOST transformer and electronic circuits that control the variable transformer rotation, thus adjusting output voltage.
With the control system which includes fast response time, high starting torque dc engine, it regulates the small voltage changes at the beginning very fast. Servo-engine, is put out of service by limit-switches when it is out of its working limits, and it is put out of service by control circuit when output voltage is automatically adjusted to the set value. When the regulation is complete the energy of the engine is cut by the help of electronic braking circuit and it works silently.
THREE PHASE ELECTROMECHANICAL STABILIZERS – WORKING PRINCIPLE
MODEL VSRT | 3010 | 3015 | 3022 | 3030 | 3045 | 3060 | 3075 | 3100 | 3120 | 3150 | 3200 | 3250 | 3300 | 3400 | 3500 | 3600 | ||||
Power KVA | 10.5 | 15 | 22 | 30 | 45 | 60 | 75 | 100 | 120 | 150 | 200 | 250 | 300 | 400 | 500 | 600 | ||||
INPUT |
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Input voltage | 400Vac 3ph + N | |||||||||||||||||||
Input voltage range | from 275Vac ~ 450Vac (other ranges available on request) | |||||||||||||||||||
Input frequency | 50/60Hz ±10% | |||||||||||||||||||
Input terminals | Terminal blocks | BARS | ||||||||||||||||||
OUTPUT |
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Output voltage | 400Vac | |||||||||||||||||||
Output accuracy | ± 1% | |||||||||||||||||||
Output current A | 15 | 21 | 32 | 43 | 65 | 86 | 108 | 144 | 173 | 217 | 288 | 362 | 432 | 576 | 720 | 864 | ||||
Overload capacity | 200% load 1’ | |||||||||||||||||||
Output frequency | 50/60Hz ±10% | |||||||||||||||||||
Regulation speed | 60-80V / sec | |||||||||||||||||||
Full load efficiency | min. 97% | |||||||||||||||||||
Output terminals | Terminal blocks | BARS | ||||||||||||||||||
Display | 3 Voltmeters with output voltage reading on each phase | |||||||||||||||||||
PROTECTIONS |
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Input protection | Automatic circuit breaker | |||||||||||||||||||
Output protection | Automatic circuit breaker (optional) | |||||||||||||||||||
By-Pass | Optional | |||||||||||||||||||
Surge suppressor. | Optional | |||||||||||||||||||
RFI/Harmonic filter | Optional | |||||||||||||||||||
Isolation transformer | Available on request | |||||||||||||||||||
OTHER DATA |
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Max ambient temp.°C | -10° C ~ +40° C | |||||||||||||||||||
Altitude | 1000 m | |||||||||||||||||||
Humidity | 95% (without condensation) | |||||||||||||||||||
Noise level | < 50dB | |||||||||||||||||||
Colour | RAL7016 | |||||||||||||||||||
Dim. (LxPxH) cm. | 50x45x100 | 65x45x125 | 85x70x140 | 100x80x160 | 207x70x135 | 207x70x205 | ||||||||||||||
Weight kg. | 130 | 145 | 155 | 195 | 238 | 345 | 360 | 470 | 615 | 675 | 850 | 1000 | 1150 | 1500 | 2200 | 2400 |