Project Description
Off Line UPS
Capacity : 500 VA to 4 KVA
Input
- Voltage : 170 – 270V Single Phase
- Frequency : 50Hz +/- 1%
- Rectifier : Automatic float cum boost charger, CVCC type.
Output
- Voltage : 230 V + 3% with AVR
- Frequency : 50Hz + 2%
- Wave from : Sine Wave (with AVR)
- Inverter Step approximate sine wave
Back up Time Options
15 min. -10 Hrs. with External Battery
Indications
- Mains ON-(Glowing) i.e. UPS on mains
- UPS ON ( Blinking)
(a) Every 5 sec with Buzzer – UPS on battery backup
(b) Every 5 sec with Buzzer – 75% of backup power utilized initiate save & quit operations - Fault (Glowing) System trip due to Over Load / Battery Low / Short / No Load Cut Off
Protections
- Built in AVR gives regulated output against fluctuation
- Fuse for over load & short circuit protection
- Noise & spikes gets eliminated by EMI / RFI filter
- Battery Low, Over & Under Voltage Protection.
Recharge Time
6 to 8 hours for 90% charge
Control Method
MOSFET based constant Voltage Current Limit
Transfer Time
Less Than Milliseconds
Environmental
- Temperature : 0 to 40oC
- Humidity : Ambient 30 to 90%
Meters
- Voltmeter to read input & output
Controls
- Mains : MCB
- Load : MCB ( Optional )
- Inverter : DPDT
Static Bypass : ( Optional )
Adequately rated solid state switch which will transfer load from UPS to Mains within 10 Mesc. (synchronized ) 20 Msec. (unsynchronized) to avoid any damage to loads.
Indications
| Mains | On |
| Over voltage | |
| Under Voltage | |
| Failure | |
| Battery | Charging |
| Low | |
| Inverter | On |
| Output high | |
| Output low | |
| Output over load trip |
Applications
- Computer
- Telecommunication Equipments
- Medical Electronic Equipments
- Process Control Equipments
- Network Systems
- Security & Emergency System
Salient Features
- Advanced PWM / MOSFET / IGBT Technology
- RFI / EMI spike & Output of Inverter.
- Inverter Efficiency SMPS
- User friendly UPS System
- Guaranteed uptime 95% minimum
- Modular system and compact size
- Caters to Genets / Electricity supply
- Prompt and Efficient service