14 April 2024
Haal Khata (Bengali: হাল খাতা) is a festival celebrated by Bengali merchants, shopkeepers and traders on Poila Boisakh (the first day of the Bengali Calendar) by opening a new ledger.
15 April 2023
On the first day of Bengali new year, traders close old ledgers and open a new ledger for the new year. Customers are invited to settle old debts and start fresh.
What is UPS ?
An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.
What is a inverter ?
A inverter is primarily designed for use with emergency lighting systems and other applications, as well as in home and non critical load.
What is a battery ?
A battery is a device that stores power inside an Uninterruptible Power Supply system.
The storage and discharge of electricity are done in the battery.
Why UPS is required ?
An uninterruptible power supply (UPS) is used to protect critical loads from utility-supplied power problems, including spikes, brownouts, fluctuations and power outages, all using a dedicated battery.
What is different types UPS ?
There are three main types of UPS :
Off-line, Line-interactive and Online UPS
What is different types batteries ?
There are three main types of batteries used in UPS or inverters: Nickel-Cadmium, Lead-Acid, and Lithium-Ion as per customer load application and case to case basics.