- Square wave 50 cycle UPS with fast battery charger for use as standby power source during power outages. This UPS is capable of powering up incandescent and fluorescent lights, fans and other domestic appliances like blenders and juicers. Many domestic and industrial customers through Pakistan are successfully using it.
- Computer grade PWM near sine wave UPS.
- Both type of UPS are available in various models and capacities ranging from 500VA to 5KVA.
- The option of built in sealed batteries or secondary batteries is available for extended backup.
WHY UPS
A UPS provides continuous power during utility power break downs. Disturbances in commercial grade power cause data loss file corruption, hardware failure and sometimes complete system breakdown. The investment in hardware and software can be safeguarded by forestalling interruptions in power supply by placing a good quality UPS between the utility power supply and the load. During power failures, the UPS continues supplying un-interrupted power to the load to ensure smooth and normal functioning. Electro-Flux UPS guarantees full protection against blackouts and low voltage or brown outs.
SALIENT FEATURES OF COMPUTER GRADE UPS:
- Regulated Inverter Output.
- Near Sine Wave Inverter Waveform.
- Soft Start Inverter.
- Electronic over Load protection.
- Reverse Polarity protection for secondary batteries.
- Automatic battery Charger.
- Automatic Low battery shut down.
- Extremely good transient response.
- Low acoustic radiation.
DESCRIPTION OF FEATURES
No voltage stabilizer at ac input
The UPS protects the load from high /low voltage by switching to DC operation if the AC voltage swings beyond 205-240 range. This range is adjustable. The UPS also has necessary surge protectors at its AC output.
Utility power failure alarm
An intermittent alarm beeps when utility power fails. This indicates that the load is now drawing power from the batteries. This alarm can be turned off by pushing the reset button.
Soft start inverter
Whenever the UPS Is turned “ON“on batteries, the inverter gradually builds up the voltage from 90V AC to 230V AC in about 500ms. This feature protects from the load and UPS from very high inrush currents during initial turn on.
Delayed return to utility power
When utility power returns after a failure, it may not be stable instantly and may have high voltage spikes. This is primarily due to the long transmission lines and loose connections in the distribution network. To protect the load from these effects the UPS waits at-least for 5 seconds before it connects utility power to the load. This feature provides added protection to the load connected to the UPS.
Reverse polarity protection
The UPS is protected against wrong polarity connections at the DC input. The UPS shall not turn on if the batteries are connected in the reverse polarity.
Constant voltage auto shut off charging
The charging current is limited through the transformer and a thyristor. The batteries are shifted to ticket charge automatically after they are fully charged.
Low battery alarm
A continuous audible alarm starts in case of low battery condition. This alarm cannot be turned off unless the batteries are recharged.
Auto shut down
From the instant of low battery warning, the UPS shall allow only one minute of operation to save files and activate proper shut down of the computer. After one minute it shall shut down automatically to protect the batteries from further discharge.
Protection against accidental switch ON
This feature protects the UPS and the load connected to it. When the UPS is being wired up for installation, it possible to connect the batteries without turning off the UPS and the load connected to it. If such an eventuality arises, the system shall not turn on initially. Instead it shall sound an alarm. The system can be turned ON by pushing the reset button at the rear of the UPS, if the batteries are discharged, the alarm shall continue to beep and the UPS shall not turn on. This feature also protects the DC binding posts of the UPS against high current sparking.
Electronic over load protection (optional)
During DC operation the UPS has a provision to activate electronic over load protection should the load exceed its rated capacity. In this case the UPS shuts down and continuous alarm starts to indicate over load. The UPS can be reactivated by first removing the extra load and then pressing the reset button.
Fuse protection
The UPS is fuse protected both at ac input and ac output. These fuses are externally accessible.