Three Phase Servo Stabilizers work on the same principle as Single Phase Servo AVRs.
Three Phase Air-cooled Servo Voltage Stabilizers are suitable for Small to Medium Capacity loads of 3-75 KVA on a Three Phase Mains Supply. These Voltage Stabilizers are installed to provide comprehensive protection to the Whole House / Building / Establishment or individual Machines or Equipment. By installing these Servo Motor Operated Line Voltage Correctors, the installation is protected 24x7 365 days. Depending on Input Voltage Range, the Servo Stabilizer is either natural Air-cooled or forced Air-cooled. Forced Air-cooling is provided by directed air-flow within the Stabilizer enclosure.
Three Phase Servo Voltage Stabilizers are of two kinds - Balanced Mains-Balanced Load (BMBL) Type & Unbalanced Mains-Unbalanced Load (UMUL) Type.
Balanced Mains-Balanced Load means incoming mains on all the three phases should not differ by more than ± 5% and load on the phases should not differ by more than 20%. BMBL type Servo Voltage Stabilizers carry out the correction based on any one Reference Phase and are predominantly suitable for Balanced Three Phase Loads such as Pumps, Motors etc. Unbalance in incoming phase voltages is reflected in output voltage as such.
Unbalanced Mains-Unbalanced Load (UMUL) type of Voltage Stabilizer caters to 100% unbalance in incoming mains and 100% unbalance in load on phases. Each phase voltage is individually corrected. It means that even if one or two phases are absent, voltage correction on remaining phases remains unaffected. Thus, a true corrected voltage on Output is available at all times and under all circumstances of load variations. These Voltage Stabilizers are most suitable for installations where loads are single phase or three phase or mixed single & three phase. It is the most COMPREHENSIVE type of protection.
Besides providing protection, Servo Voltage Stabilizers installed on Mains improve Power Factor and reduce Energy Bills wherever Mains is beyond ± 5% of 230 / 240 Volts. If there is higher deviation in Mains Voltage, substantial saving in Energy Bill is realised by installing the Servo Voltage Stabilizer at Mains itself. Details are available on specific request.
By a Unique Design Algorhithm developed by our R&D Engineers - ieco® Servo Voltage Stabilizers achieve more than 98 % Energy Efficiency Compared To Competitions 95%.
ieco® Servo Voltage Stabilizers provide trouble free service year after year without any particular maintenance.
| Input Range |
340 - 480 V (360 - 500, 370 - 470) 300 - 460 V (320 - 460, 330 - 450) 240 - 460 V (270 - 460, 250 - 450) 207 - 485 V (200 - 490, 150 - 440) Bracketed are Custom options |
|---|---|
| Output Volts |
415 V ( 380 - 480 V, Settable) |
| Frequency | 50 ± 3 Hz |
| Output Stability | ± 1% (No load to full load), Settable |
| Waveform Distortion | Nil |
| Power Factor | Does not introduce any PF |
| MAINS SUPPLY | INPUT RANGE | COOLING | PREFERRED RATINGS |
|---|---|---|---|
|
Three Phase R, Y, B Phase & Neutral |
370-470 V | Air cooled |
3 KVA to 100 KVA (3, 5, 8, 10, 15, 20, 25, 30, 40, 50, 60, 75 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
340-480 V (360-500 V) |
Air cooled |
3 KVA to 75 KVA (3, 5, 8, 10, 15, 20, 25, 30, 40, 50 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
320-460 V (330-470 V) |
Air Cooled |
3 KVA to 50 KVA (3, 5, 8, 10, 15, 20, 25, 30, 40 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
300-460 V | Air Cooled |
3 KVA to 50 KVA (3, 5, 8, 10, 15, 20, 25, 30 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
240-460 V (250-450 V, 270-460 V) |
Air Cooled |
3 KVA to 30 KVA (3, 5, 8, 10, 15, 20, 25 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
200-490 V (207- 485 V) |
Air Cooled |
3 KVA to 20 KVA (3, 5, 8, 10, 12, 15 KVA) |
|
Three Phase R, Y, B Phase & Neutral |
150-440 V | Air Cooled |
3 KVA to 15 KVA (3, 5, 8, 10 KVA) |
Following Optional Features are available on extra cost
