What is UPS (Uninterruptible Power Supply)?
UPS (Uninterruptible Power Supply) is a critical electrical system that keeps your essential devices safe during power outages. UPS systems instantly activate when grid power is lost, protecting computers, servers, medical devices, and other sensitive electronic equipment.
How Does a UPS System Work?
The working principle of UPS systems is quite simple:
- Normal Operation: When grid power is available, the UPS filters electricity to devices while charging its batteries
- During Outage: When power is lost, the UPS switches to battery power within milliseconds
- Backup Duration: Keeps devices running depending on battery capacity
- Power Restoration: Automatically switches back to normal mode when grid power returns
UPS Types and Features
1. Online UPS (Double Conversion UPS)
The most reliable UPS type, Online UPS systems continuously convert AC power to DC and back to AC, providing:
- Zero transfer time (0ms)
- Perfect voltage and frequency regulation
- Harmonic filtering
- Ideal for data centers and hospitals
2. Line Interactive UPS
Medium-level protection Line Interactive UPS systems offer:
- 1-4ms transfer time
- AVR (Automatic Voltage Regulation) feature
- Suitable for small businesses
- Cost-performance balance
3. Standby (Offline) UPS
Basic protection economical solution:
- 4-10ms transfer time
- Suitable for home use
- Most economical option
- Adequate for simple electronic devices
How to Calculate UPS Capacity?
For proper UPS capacity selection:
- Power Consumption Calculation: Sum up power consumption (Watts) of all devices you want to protect
- Safety Margin: Add 20-30% safety margin to calculated power
- Battery Runtime: Determine required backup power duration
- Future Expansion: Consider potential system growth
Considerations When Choosing a UPS System
- Topology Selection: Choose UPS type suitable for your criticality level
- Capacity Planning: Calculate current and future requirements
- Battery Technology: Evaluate VRLA or Lithium-ion options
- Monitoring and Management: Check for SNMP card and software support
- Service and Warranty: Review local service network and warranty terms
Melita Energy UPS Solutions
Melita Energy UPS product range offers professional solutions from 1kVA to 500kVA. All our UPS systems feature:
- CE and international certifications
- 24/7 technical support service
- Nationwide service network
- 2-year comprehensive warranty
- Free site survey and project service
For your UPS system needs, contact our expert team and get customized solution recommendations.
