Stay in complete control
Clear your queries and gain knowledge on the best of batteries and power supplies. Browse through these tips and equip yourself to the maximum.
What is Inverter ?
An inverter takes DC power (battery for example) and converts it into AC "household" power for running electronic equipment and appliances.
It basically inverts the DC power to AC power suitable to power electronic/electrical equipment. The change over time between mains fail to Inverter mode will be high up to 500 milliseconds.
What is UPS or Un Interrupted Power supply?
What is the basic Difference between Inverter and UPS?
What are the different classes of UPS available in market?
OFFLINE UPS The OFFLINE UPS supplies (or routes) the incoming mains supply directly through to the output usually through a relay contact. Some high frequency noise filtering and surge suppression may be included in this path. The UPS switches on its inverter as soon as mains supply failure is detected and simultaneously switches the output relay to the inverter side to supply battery sourced power to the load. This transition involves a delay on account of the time to reliably detect mains failure and switch over a relay, and the output is broken for this period (usually for 2 to 12msec ).
LINE INTERACTIVE UPS An LINE INTERACTIVE design is in-fact a combination of OFFLINE & ONLINE, in which the inverter plays a dual role of charging the battery when mains supply is present as well as regulating the output voltage and working as a normal inverter in absence of mains supply, so to the user it appears like an ONLINE System. Line Interactive UPS offers enhanced power protection over the basic Offline designs by providing additional line conditioning.
ONLINE UPS An ONLINE UPS is the one in which the inverter always supplies power to the protected load and hence the same quality of power is ensured all the time. When mains supply is present, the inverter derives its power from thee mains supplied rectifier and the backup batteries are also kept in charged state. When the mains fail, the source of DC power for the inverter section shifts to the battery without any breaks whatsoever in the output to the Inverter. It also bears all the vagaries and noise borne out of the mains supply and insulates the secure bus supply from it. An ONLINE UPS is especially usefully for sensitive and critical equipment's/devices.
What is the Application of Inverter?
What is the Application of UPS?
In general what kind of application do UPS perform when there is power failure?
Traditionally UPS can perform the following functions:
- Absorb relatively small power surges.
- Smooth out noisy power sources.
- Continue to provide power to equipment during line sags.
- Provide power for some time after a blackout has occurred.
In addition, some UPS or Online UPS/software combinations provide the following functions:
- Automatic shutdown of equipment during long power outages.
- Monitoring and logging of the status of the power supply.
- Display the Voltage/Current draw of the equipment.
- Restart equipment after a long power outage.
- Display the voltage currently on the line.
- Provide alarms on certain error conditions.
- Provide short circuit protection.
What does VA / KVA mean?
What is Apparent Power and Real power ?
What is the wattage and VA relationship or Power Factor (PF)?
How are UPS capacity rated?
How do I size or rate my UPS requirement?
- First you need to determine the load of the critical equipment to be protected or appliances which need to be operated in the event of a power failure.
- To find the rating of equipment or appliance check the plate at the back of the equipment near the mains outlet.
- It will usually be give a figure in watts (w) or Amps (A). If in Amps, multiply the line voltage 230 V by the figure given to arrive at a VA (Volt-Amp) rating. In case if the rating is given in watts convert it to VA by multiplying by 0.8.
- Add all the VA rating of equipment and appliances and add additional 25% for cushion, which is what UPS rating or capacity you would be requiring for your home or office.
What factor should I consider when selecting UPS ?
- Always select capacity of UPS at least 25 % extra for future expansion.
- Select right battery sizing as per backup requirement, do not under size or over size.
- Before installation of UPS get your installation site verified by qualified technician.
- Reliability of product
- Customer service and backup support
- Technology and features.
- Price and performance.
Can I over load my UPS above its rated capacity?
How far can I keep my inverter / UPS from my batteries?
What is the Low Voltage Alarm & Auto Shutdown?
Can I use mixer, refrigerator, hair drier or water pump on HUPS?
How often must my UPS be serviced?
What is a bypass of UPS and its function?
What is "SNMP"?
Simple Network Management Protocol (SNMP) is a family of protocols that provide a means for monitoring and controlling networked devices. Computer vendors have built into some network devices, including some UPS models, network management capabilities so that you can query their status remotely, as well as allow the sending of alerts when a certain type of event occurs. These devices are usually referred to as "smart" devices.