Three Phase Air Cooled Servo Stabilizer
Project Description
Provides perfectly stable output even under severe conditions of unbalanced voltage conditions. Ideal to protect the electrical and electronic equipments from high and low voltage.
- High efficiency & Fast response.
- Wide input voltage range & Audiable alarm for trip conditions.
- 99.99% failure proof control circuit.
- No over under, shoots and hunting.
- Built in bypass switch upto 100 Kva.
- Less active component avoids failure ratings.
- Special electronic circuit to operate on gensets.
- No effect of power factor and frequency variations.
- Single PCB for three phase sensing and correction.
- Voltage at speed related to rate of fluctuations and avoids oscillations & hunting in DC motor drive.
- Variable speed high torque dc servo motor proportionally controls corrections.
- Rugged and smooth ac motor drive control through optoisolator circuit which is Highly reliable.
- High reliability due to digital monitoring and controlling using micro controller.
- All components sourced from reputed manufacturers, confirm to IS/BS/VDU Standards
- All raw material inspection as per internal components manual.
- Individual assemblies and sub assemblies tested separately.
- All electronic assemblies tested on full load at 55 deg c in oven for 48 hours to Minimize failure.
- Final equipment tested for accelerated life test to identify and replace any weak links.
- Input and Output Low Voltage protections.
- Input and Output High Voltage protections.
- Phase rotation/single phasing preventer.
- Input protection using HRC fuse.
- Control circuit protection using fast blow fuse.
- Electronic overload protection.
| PARAMETERS | SPECIFICATION |
| Single phase capacity | 1 to 25 kva |
| Three phase (air cooled) | 3 to 150 kva |
| Three Phase (oil cooled) | 3 to 2000 kva |
| Input voltage range | 170-270 Single phase 295-465 volts three phase |
| 195-270 Single phase 340-465 volts three phase | |
| 205-270 Single phase 360-465 volts three phase | |
| Special range | As per customer requirements |
| Output voltage | 220/230/240 V AC in single phase |
| 380/400/415 V AC in three phase | |
| System | Unbalanced/balanced type |
| Connection | Star/Delta or Star/Star |
| Output Voltage regulation | (+/-) 1% from no load to full load |
| Servo motor drive model -A | AC Servo Synchronous Motor - Small |
| Correction speed | 35 V/sec-1 ph, 60 V/sec-3 ph |
| Response time | Above 60 milli. sec. |
| Servo motor model-B | DC servo motor |
| Correction speed | Upto 105 V/sec. |
| Response time | 10 milli sec |
| Operating frequency | 47 to 53 HZ |
| Output waveform | True reproduction of input |
| Insulation | Class "B" |
| Short circuit percentage and period | 300 % for 250 milli sec. |
| Overload capacity | 120 % for 1 minute |
| Effect of load P.F on OP Volts | Nil |
| Waveform distortion | Nil |
| Duty Cycle | 100 % continuous |
| Ambient | Upto 45c max above ambient Relative humidity upto 90% |
| System construction | As per IS:9815 |
| Enclosure | Powder coated |
| Efficiency | Better than 98% (electrical consumption saved) |
| Environment | Designed for indoor / outdoor tropical use |
| Mounting | On wheels |
| Earthing | Earthing terminals provided |
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