On-line UPS

Introduction:

Complete Blackout and Brownout Protection
According to Study by Bells Labs, under voltage & sudden dips represent the majority of power problem. Wide Input range & Online design of "Maxipower" UPS prevent data loss caused by outrages & brown outs.

Computer Grade Line Conditioning with isolation
Superior full time isolation is built into all "Maxipower" UPS. Output is fully isolated by double conversion & isolation transformer. No need to have extra isolation transformer as required for imported Systems. Remote Monitoring & Control through SNPB / Internet.

Donvey UPS are available in following configuration

Stand Alone True online UPS. Single / Three Phase input / output. Dual redundant Hot Standby type UPS. Parallel Redundant load sharing type UPS.

SALIENT FEATURES:

Wide Input Window
Generator Compatible
EPROM / Micro Controller Design
Float Cum Boost Charger
IGBT Based Hi-Frequency PWM Inverter
Soft Start Facility
Inverter Efficiency > 92%
Distortion Less than 3%
Crystal controlled output frequency 50 Hz + 0.01%
Low noise < 50 db up to 10 KVA
High crest factor > 4:1
Compact, sleek design
Unlimited backup
Computer Interface
ETDC / Dot Tested

Self Test & Diagnostic Features

An electronics circuit with digital logics continuously searches for the following faults & trips the system with audio – visual indication.

Battery Over Voltage
Battery Under Voltage
Output AC Over Voltage
Output Overload / Short Circuit
Phase fail for three phase models.

Optional Features:

Static by pass switch
Serial RS 232 Interface.
Auto file shut down
Microprocessor based digital metering
Remote on / off panel
Remote Indicator panel.

Technical Specification of UPS

Electrical Characteristics Float - cum - Boost Charger
AC input Voltage
230V - 20% + 15% Single Phase (or) 415V - 20% + 15% Three Phase	Or any voltage range as per requirement.
Frequency
a) 50Hz + 10%	Can also work on Generators
DC Output
UPS Capacity	DC Output Voltage
a) 50KVA & above	a) 432V
b) 10KVA to 50KVA	b) 360V
c) 5KVA to 7.5 KVA	c) 180V
d) Below 5KVA	d) 96V/120V/168V
Inverter
Output Voltage	230V AC Single Phase or 415V AC Three Phase
Adjustable Range	+ 10V AC
Voltage Stability	+1% for DC input Variation & output load Variations.
Frequency	50Hz+0.05 Hz (Crystal controlled) or 60Hz + 0.06Hz or Any optional frequency
Wave form	Sine wave
Harmonic Distortion	Less than 3%
Efficiency	>93% for 360V DC above>90% for 180V DC >85% for 48V DC/72V DC
Power Factor	0.8 lagging to unity
Overload	110% for 10 minutes. 200% for 5 cycles. 400% for ½ cycles. as per customer's requirement
Crest factor	>4:1
Transient recovery	Within 3 cycles
Phase Displacement for 3 Phase Output	120°+1°
Audible Noise	Less than 55 db at 1 meter up to 10KVA. Less than 60 db at 1 meter above 10 KVA.

Indicators

Mains on
Load on batteries
Battery low
Inverter overload
Load on Mains
Battery boost
Inverter on
7stp bar graph for battery/load level

Ambient conditions

Operating - 0°C - 50°C
Storage – 0°C - 60°C
Relative Humidity – 95 RH
Operating Altitude – up to 2000 meters.

Metering (Optional)

Analog / Digital metering available for Input / Output voltage / battery voltage / battery current output frequency or any other as per requirement.

Field of Application

Autoconers, textile machines, Knitting machines.
Information Technology and call centers.
Computer and Micro-Processor Controlled Equipments.
Sophisticated research instruments used in Scientific, Medical, Agricuture, Educational, And other Research Institutions.
Offset Printing Presses. Color Scanners, Processors, Phototypesetters, Photographic Equipments, Photo Copiers and Packaging Industries.
Medical Equipments, X-Ray machines, E.C.G Machines/Monitors. MRI, CT Scan etc.
Defence Installations, LPTs, HPTs, Braodcasting and Telecommunication.
Lifts, Escalator and Elevators.
Central, Air-Conditioning Plants, Processing Plants, Chemical Industries, Textile Industries.
CNC Machines, Laser Machines and Moulding Machines etc.
Commercial Buildings and Complexes.
Complete Hospitals and Nursing Homes.