| Characteristics | 1 Servo Stablizer | Servo Stablizer | Constant Voltage Tarnsformer | Wall Mounting Automatic Voltage Stablizer | |
| 1 | Capacity | 1 to 30 KVA | 3 to 1000 KVA | 150VA to 5 KVA | 3KVAto 5KVA |
| 2 | Input Voltage | 170V - 270V 140V - 270V (opt.) | 295V - 465V 245V - 465V(opt.) | 180V - 260V | 145V - 290V |
| 3 | Output Voltage | 230V ADJUSTABLE | 415V ADJUSTABLE | 230V ± 1% | 195 - 245V |
| 4 | Frequency | 50 ±3HZ | 50 ±3HZ | 50 ±3HZ | 50 ±3HZ |
| 5 | Regulation | ± 1 % FROM NOLOAD TO FULL LOAD | 1 % FROM NOLOAD | 0.75% LAG 0.9 % LEAD | ±1% |
| 6 | Efficiency | >96% | >96% | 100% | 96% |
| 7 | Wave form | SAME AS INPUT | SAME AS INPUT | SAME AS INPUT | SAME AS INPUT |
| 8 | Motor drive | HEAVY DUTY AC SYNCHRONISE | HEAVY DUTY AC SYNCHRONISE | NA | NA |
| 9 | Metering | ANALOG VOLTMETER | ANALOG VOLTMETER | ANALOG VOLTMETER | |
| 10 | Nature of cooling | AIR COOLED | AIR COOLED OIL COOLED | AIR COOLED | AIR COOLED |