News Category

Electrician Knowledge

The technical indicators of voltage stabilizer

Product Name: CNC machine tools for the regulator

product description

Three-phase automatic CNC machine dedicated voltage regulator:
Compared with other types of voltage regulators, the three-phase automatic CNC machine-specific voltage regulator has the advantages of large capacity, high efficiency, no waveform distortion and stable voltage regulation. Overvoltage, undervoltage, phase sequence (overvoltage, undervoltage, overvoltage, overvoltage, overvoltage, overvoltage, overvoltage, overvoltage, overvoltage, overvoltage, , The lack of equal automatic protection device, other functions are automatically powered, delayed output, the output back to facilitate the installation, operating reliability and so on.
New features
• Automatic power-on.
• Delayed output.
• Output back.
• Undervoltage, overvoltage, phase sequence, phase failure and mechanical fault protection.
Sound and light alarm.
• Regulated voltage and mains switch freely.
Model Specifications Rated current volume (long ╳ wide ╳ high) mm
SBW-10KVA 16A 450╳700╳950
SBW-20KVA 31A
SBW-30KVA 46A
SBW-50KVA 76A
SBW-80KVA 121A 600╳850╳1100
SBW-100KVA 152A
SBW-150KVA 228A 730╳850╳1600
SBW-180KVA 274A
SBW-225KVA 342A
SBW-320KVA 478A 1200╳850╳2000
SBW-400KVA 608A
SBW-500KVA 761A 1050╳800╳2200 (double cabinet)
SBW-600KVA 913A
SBW-800KVA 1217A 1200╳850╳2200 (main cabinet)
1050 ╳ 850 ╳ 2200 (auxiliary cabinet)
SBW-1000KVA 1521A
SBW-1200KVA 1825A
SBW-1400KVA 2128A 1500╳1000╳2200 (a main cabinet)
1050 ╳ 1000 ╳ 2200 (two counters)
SBW-1600KVA 2431A
SBW-1800KVA 2735A
SBW-2000KVA 3039A
SBW-2400KVA 3647A

Technical indicators and characteristics
Input voltage range: 380V ± 20% (304V-456V)
· Output voltage regulation accuracy: 380V ± 1 ~ 5% adjustable (able to withstand 5 times the instantaneous current)
Frequency: 50Hz-60Hz
Pressure: 2000V 1 minute without breakdown
Efficiency:> 98%
Waveform distortion: None
Response speed: ≤1.2s
Insulation class: F class 155 ℃
Insulation resistance: ≥2MΩ
Features: With the purification of true RMS sampling electronic board (for the inverter, capacitor compensation work arising from the magnetic field, electromagnetic and harmonic interference and inhibit the output voltage fluctuations).
working principle
SBW series voltage regulator consists of three-phase compensation transformer TB, three-phase voltage transformer TUV voltage detection unit, servo motor control and transmission, contactor operating circuits, protection circuits and other components. The gas into the block diagram shown in Figure 1.
The primary winding of the TUV transformer is connected in a Y-shape and connected to the output of the regulator. The secondary winding compensates the primary winding of the transformer TB, while the secondary winding of the compensation transformer is connected in series in the main circuit. Now A-phase column, indicating the working principle of its voltage regulator, as shown in Figure II. If you do not count the compensation transformer voltage drop, you can see from Figure 2:
UA0 = UAI + UAC
Where: UAI --- regulator A phase input voltage;
UA0 --- A-phase voltage regulator output voltage;
UAC --- regulator A phase compensation voltage;
The principle is: when the A phase input voltage UAI increased ΔUAI, the compensation voltage UAC also change ΔUAC, and UAC = - UAI, the A phase output voltage UA0 remain unchanged, the same way B phase, C phase is also true.
The voltage regulation process is as follow: according to the change of the output voltage, the voltage detection unit samples, detects and outputs the signal to control the servo motor SM to rotate, and then slides (or scrolls) on the brush set of the voltage regulating transformer TUV Regulating the secondary voltage regulator transformer to change the polarity and size of the compensation voltage to achieve automatic output voltage stability in the regulation of the accuracy of the allowable range, so as to achieve the purpose of automatic voltage regulator.