Depending upon the type of application and need you can opt between a backup power or power-conditioning UPS. Backup UPS saves power and electricity bills in comparison to double conversion Online UPS and if the application is not critical and the requirement is only for process continuity then a Back up UPS would suffice. If the load is very sensitive and of critical application the need is of Uninterupted Quality Power rather than uninterupted power. This is because the life of the connected equipment is directly propotional to the quality of the power and the equipment/ process uptime can be greatly enhanced or optimised using Power-Conditioning Online UPS.

Choosing among the different options and technology advantages offered by different vendors can often be very tricky indeed. Should I for an Industrial grade UPS, UPS with isolation transformer, DSP technology, PFC technology; depends on the type of load electrical and environmental conditions under which the UPS is required to operate. If the load is Industrial, it is a better idea to opt for UPS for Industrial application or Industrial grade UPS. If there is a backup generator, it is recommended to opt for PFC UPS. DSP technology enhances the protects and power quality. Galvanic isolation is required at the output if the premium grade, high quality power with comprehensive power protection is the need.

Load study reveals the load PF, input harmonic current, surge/crest etc that will determine the buffer capacity required to handle the existing load and add up the spare capacity for the future expansion in the next one year to arrive at the capacity of UPS.

Technical jargons like THDi, transient recovery, input voltage window are to be very closely considered and compared between the offers. SNMP or GSM for remote power monitoring is a good feature to opt for. Crest factor of UPS recveals its capacity to handle surge lodas without derating. The output voltage regulation (Phase-Neutral) during imbalanced loading is also a critical parameter to consider.

A5. Although you can use a conventional commercial grade UPS for Laser cutting machine, considering the cost of investment and loss of downtime, its a better to opt for Industrial Grade UPS which are ideally designed for tough loads.