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UPS switchboard

Uninterruptible Power Supply (UPS) is one of the basic equipment in the electrical industry, which, along with electrical power sources and batteries, provides the stable power required by electrical equipment during outages or voltage fluctuations.

The UPS switchboard not only prevents problems that may occur in the city power grid, but also maintains the reliability factor and correct operation of electrical equipment. It can also minimize the unwanted effects of power outages and ensure continuity of performance in any condition.

Technical specifications of the UPS switchboard

The use of UPS electrical panels as an electrical protection solution in the construction of electrical panels is very important. This equipment is effective in maintaining electricity stability and correct and continuous operation of electrical equipment. The operation of the UPS switchboard in providing stable power occurs in two main ways. When the city power is available and the voltage is within a certain range, the UPS switchboard directly connects the city power to the load through electrical equipment.

In the event of a power outage, the UPS panel supplies the necessary electricity using batteries, and immediately after the power outage, without any voltage fluctuation, it uses the batteries and supports the load or the same consumer, and the required voltage delivers to the consumer. However, the UPS panel is only one part of the UPS power system, and two other elements along with it, the electrical power supply and the batteries, also play an important role in providing stable power. However, the UPS panel alone has a great impact on maintaining and providing stable electricity.

UPS Panels Typs

The UPS switchboard acts as an intermediary between the utility power and the electrical equipment. This equipment is available in different types such as Line Interactive, Online, Offline, Modular UPS, Single-phase & Three-phase Online UPS. and Rackmount UPS (Rackmount UPS) are offered. Each of these types has its own characteristics and advantages, which should be selected depending on the needs and applications used.

In offline UPS, when the main power source is cut off, it quickly uses its internal batteries to supply power. Normally, the batteries are charged when the power returns and the voltage returns to normal. This type of UPS is used for home and small use.

Online UPS (Online UPS) keeps the batteries continuously charging and stabilizes the output voltage using continuous converters and filters. Normally, the power from the battery is only transferred to the equipment and the city electricity is only used to charge the batteries. This type of UPS is suitable for sensitive and industrial applications.

Single-phase and three-phase online UPS (Single-phase & Three-phase Online UPS) are offered as single-phase or three-phase depending on the power of the devices used. Single-phase UPS has less power and is usually used for homes and small businesses, while three-phase UPS is suitable for industrial and institutional uses with heavier loads and more sensitive equipment.

Modular UPS consists of several separate units that combine to provide all UPS power. This method is very prominent in terms of additional parts and the ability to add power. Also, in case of failure of one unit, the other units guarantee continued service.

Rackmount UPS is designed for use in server environments and data centers. They are easily installed in rack stands and can be assembled horizontally or vertically. Rackmount UPSs offer more flexibility in terms of power and configurations.

UPS electrical panel map

The UPS wiring diagram may vary depending on the type and model of the UPS device. But in most cases, the UPS panel includes the following components:

  • Off and on relay with protection function
  • Main power input switch
  • Input protector (voltage, current and frequency protection)
  • input fuse
  • Battery or battery bank
  • Battery charging circuit
  • Battery status monitoring and control
  • Power converter (DC to DC converter or DC to AC converter)
  • Drive control and monitoring circuit
  • UPS power output switch
  • Output protector (voltage, current and frequency protection)
  • Output relay for connecting electrical loads
  • UPS performance control and monitoring circuit, including relevant sensors and algorithms
  • Display and user interface (may include LCD or LED display and buttons for setting and viewing status)
The most important drawings for the UPS switchboard are:
  • Layout map: showing the different parts of the UPS and the relationships between them
  • Wiring diagram: showing the electrical connections and wiring between the components of the industrial switchboard
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