• Craftsmans Electric

UPS system

Craftsmans Electric offers uninterruptible power supply systems. The product range includes microprocessor based online UPS systems, offline UPS systems, Mosfet based online UPS systems and CVT based online UPS. These systems provide true uninterruptible power supply by double conversion technology from a low input voltage of 150 Vo to a high input of 270 V. Even wider input voltage ranges are available on order. The system includes a power factor correction circuits to minimise power bills. High frequency IGBT based PWM circuit provides accurate frequency and waveform control under varying line and load conditions. This not only provides backup power during power outages, but also provides protection against errors due to frequency variations, voltage variations, and micro interruptions, and EMI and RFI protection. The UPS also provides adequate protection against lightning. Thyristor controlled charger comes with voltage control and current limit and over/under voltage protection. The system finds use in protection of computers, networking equipment, textile electronics, medical equipment, communication systems, and data acquisition systems. Brief specifications: AC input voltage - 150-270 volts, single phase; AC output voltage - 220 V ?1%; power range - 500 VA to 20 kVA; battery back-up time - 30 minutes to 8 hours.