We are offering true online small ups system. technology : intelligent ups, using igbt technology
latest design : microcomputer-chip based
switching frequency : high frequency, (greater than 17.5 khz.) to ensure
low switching lossess
purity of sine-wave
ultra-fast transient response
very low noise
wide input range :
350 v - 475 v ac (three phase) or
160 v - 270 v ac (single phase)
45 - 60 hz
accurate output :
415 v ac 1.0% (three phase) or
230 v ac + 1.0 % (single phase)
50 hz + 0.1 % (crystal controlled)
ratings : 1.0 - 60.0 kva
output power factor : 0.8 lagging to unity
transient response : for 100 % step load change output stays within + 5% and recovers within 12 cycle
metering : on-board programmable lcd panel meter to display following parameters :
output voltage
input voltage
battery voltage
battery current
output frequency
input frequency
various conditionsparameter of ups poweror
digital meter showing inputoutput volts through selection.
wave form : pure sine wave
distortion :
total harmonic distortion less than 2% for linear load
total harmonic distortion less than 5% for non-linear load
overload rating : 100 % continuous 150% for 30 seconds
operating temperature : 0 to 50o c, 95% r.h. (maximum)our ups has passess environmental - tests from defence laboratory of r&de (engineers), dighi, pune.
inverter efficiency : better than 90%
transfer time : zero
genset compatibility :ups system is fully compatible to any type of genset
protections :
output over-voltage
output overload. The same shall be effective only for the normal continuous operations.
output short circuit
battery under-voltage
forced air-cooling to protect electronic other components from overheating.
indications :
mainscharger on
inverter on
system over-load
battery under-voltage
output underover voltage
alarms :
mains fail (musical alarm)
battery low warning (musical alarm)
low noise : less than or equal to 45 db (a) (standard) at 1.0mtr.
bypass arrangement :
in-built solid-state static switch provided (for ups of 7.5 kva and above ratings)
manual changeover switch provided (for 1.0 to 6.0 kva ups systems).
battery charger :
charger is designed on boosttrickle (cccv) principle to keep batteries in top condition.
uses high frequency design to ensure long battery life.
useful options :
servo-voltage stabiliser for use in bypass mode
synchronisedasynchronised inverter configuration
critical non-critical redundant ups
dual-redundant (hot standbyload sharing) ups configuration
scott - connected transformer for single phasing of input ac mains and steppingdown the mains voltage from 415 v to 270 v ac in bypass mode (recommended for 10.0 kva ups and above with 3- phase input)
computer interface (rs-232) for automatic unattended shutdown of file- server & monitoring of battery status. Options available for novell- lannt-windowssco-unixlinux.
remote control indications & alarms panel to control the ups functions from a distance.
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V. K. Deshpande (Enertech Ups Pvt. Limited)
399/1-2,Bhare, P. O. Ghotawade (near Piraqngut) Tal. Mulshi., Pune, Maharashtra - 412111, India
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