PWM-IGBT Based Static Stabilizer
Launched upto 50 KVA
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Approved supplier
to Ministry of Defense
& Urban Development,
Government of
Sri Lanka

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Online UPS

The UPS is a dedicated design for large scales of power systems applying on all kinds of data process systems, communication systems, satellite systems, computer network systems, medical device systems, safety and emergency systems, monitoring systems, and all factory facilities.

The UPS employs a high frequency SPWM (Sinusoidal Pulse-Width Modulation) inverter technology. The inverter uses an advanced IGBT module capable to reduce the MTTR (Mean Time to Repair) and easier to be maintained, came with advantages in high efficiency, low thermal loss, low noise, small volume, and long life expectancy. The control implements on MCU that simplifies complicated control circuits and reduces number of components. Besides, in order to improved reliability of UPS, the series provides two methods:

Hot standby redundancy : is achieved by dual loops design.
Parallel redundancy : Yes available in various models.

A LCD display and keypad makes user easier to operate with accurate outputs. System block diagrams and statuses are also available on the interface providing users with clearly operating modes and overall conditions. Users can also implement long-distance monitoring by using various communication ports via computers or network systems. As a result, direct monitoring and controls on the UPS are available for users, which all messages on the interface are generated by MCU. If exclusive software - UPSentry is installed, 31 sets UPS status could be monitoring at the same time via only one PC reducing man forces and facilitating centralized control. Friendly design concepts of UPS to provide optimal and durable quality power and to be the protector of the best power related devices for customers.

Our Range of UPS are Green Power Technology - Power Source Friendly with Front End IGBT Rectifier and Current THD < 5% meeting IEEE 519 standard. The input Power factor is maintained better then 0.98 and that leads to Energy Saving.

All the model have wide input voltage range thus eliminates the need for additional devices at input of UPS.  The UPS have digital control either by Micro Processor or DSP chips thus various complex feedback algorithms, data acquisition, communication protocols are sensed by simultaneously working DSP's. The DSP controlling technology supplied useful features such as high efficiency and reliability.  

Model Rating (KVA) Configuration Built-in IT Front end rectifier/charger Catalog
    MF    1 to 3 1ph - 1ph NO IGBT    
    HC    3 to 5 1ph - 1ph YES SCR    
    HX    5 to 10 1ph - 1ph YES SCR    
    HX    10 to 20 3ph - 1ph YES SCR    
    HX II    15 to 20 3ph - 1ph YES SCR    
    DS II    25 to 60 3ph - 1ph YES SCR    
    eP    10 to 120 3ph - 3ph YES SCR    
    GT-C    10-300 3ph - 3ph NO IGBT    


Rating Voltage : 380/220, 400/230, 480/277, 208/120 93-phase, 4-wire plus ground) V
Voltage range : ±20 %
Input Current Harmonic Distortion (Full Load) : <3 (with optional rectifier or filter) %
Rating frequency : 50/60 ± 5% Hz


Voltage : 220,230,240 (1-phase, 2-wire plus ground) V
380/220, 400/230, 415/240, 480/277, 208/120 (3-phase, 4-wire plus ground)
Voltage Harmonic distortion : ≤ 3 % (linear load)
Voltage Regulation    
Static : ± 1%
Dynamic : ± 5%
Frequency : 50/60 Hz
Frequency regulation    
Interior Oscillator : ± 0.01%
Synchronized : ±1%
Overload : ≤ 110% 60 minutes, 110~125% : 10 minutes; 126~150% : 1 minute


LED : AC mains normal, reserve source normal, rectifier, inverter, static switch, battery status
LCD : Input bypass inverter, output & battery voltage, current and frequency load level, abnormal message


Monitor : Multi-unit monitor, graphic display, history data statistics
Control : Inverter horns remote control, password setting, fault information reading, remote panel


Communication Interface : Standard: RS232 x 1, RS485 x 1, status dry contact output x 6
Option : SNMP card, Modbus card, Ethernet port, remote panel
Parallel Redundancy : Yes (up to 8 UPS)
Emergency Power off : Yes (local & remote)
Multi-Speed Fan control : Yes (10 levels)
SRAM : Yes (500 event logs)
Parameter settings : Yes
Battery start : Yes (option)
Input Harmonic Improvement : Harmonic filter and 12-pulse rectifier (option)


Overall Efficiency  
Economic : > 97,  > 97.5%
Normal : 90, 91, 91.5, 92, 92.5%
Transfer time : 0 ms
Temperature : 0~40 K
Relative humidity : 90% (Non-condensing)
Audible Noise (at 1.5m distance) : ≤60, ≤65, ≤68, ≤72, ≤77 dBA
  • H-class galvanic Isolation
  • Intelligent charger
  • Load bus synchronization
  • Economy mode
  • Dual feed input
  • Generator compatibility
  • Automatic Electronic Phase switcher (Optional)
  • Inputs multiplus converter
  • PWM IGBT based rectifier
  • SNMP, Modbus, Relay I/O control card
  • Battery cabinet with kit
  • Bypass line IT & Stabilizer
  • IT at Output
  • Cabinet
  • Topology
  • Bypass switch
  • Battery
Hot stand by
Manual maintenance switch yes
Select types from SMFB, Ni-cd
Parallel redundancy
Load Power 2000 VA Type VA here
Load PF 0.7   Type PF here
UPS DC Link 72 Volts Type DC link of UPS here
UPS Efficiency 0.9 % Type UPS efficiency here
Derating 0.5   Type Battery Derating from RH chart here
Backup time 0.5 Hrs Type Backup time in hrs here
Battery Derating Chart
Backup Time Hrs Derating
10 minutes 0.17 0.5
20 minutes 0.3 0.5
30 minutes 0.5 0.5
60 minutes 1 0.6
2 hours 2 0.7
3 hours 3 0.8
4 hours 4 0.9
5 hours 5 1
Battery AH =
(Load Power) x (Load PF)
(UPS DC Link V) x (UPS Eff) x (Derating)
x (Back up Time)
Battery AH =  21.60  
Load Power : UPS Efficiency :  
Load PF : Derating :  
UPS DC Link : Backup time :
Battery AH =