IV306E Rev. 004 Siel S.p.A.
Page 11 of 37 + 12 Tables, 14 F FR
Issued date: 2014-03-24
EN50091-2:
Uninterruptible Power Systems (UPS)
Part 2: Electromagnetic compatibility (EMC) requirements
IEC62040-2:
Uninterruptible Power Systems
Part 2: Electromagnetic compatibility (EMC) requirements
EN62040-3:
Uninterruptible Power Supply systems (UPS)
Part 3: Specific performance methods and test requirements
IEC62040-3:
Uninterruptible Power Systems
Part 3: Protection requirements and test methods
(EN50091-3:
Uninterruptible Power Systems (UPS)
Part 3: Protection requirements and test methods)
The appliances are designed and manufactured in conformity with UNI EN ISO 9001:2000 standard,
as certified by Sincert certification N.005.
DESCRIPTION OF SYSTEM
The UPS described in this manual is a result of projects, technologies and advanced electronic
components.
Its primary function is to guarantee the load is continuously supplied with or without the mains
voltage. The supply output is of high quality voltage and frequency, suitable for supplying even the
most sophisticated and delicate load.
Double-conversion UPS offer the following:
- Increased power quality
- Power blackout protection
- Full noise rejection
- Full compatibility with all types of loads
- To meet the needs of any installation, thanks to the huge number of options available
- To guarantee high efficiency in all load situations
Block diagram (Figure 1).
The equipment consists of the following units:
- A RECTIFIER SWITCH COMPONENT (S1) which enables the rectifier to be disconnected from the
power supply.
- Rectifier fuses (1) which are used for quick disconnection of the rectifier from the mains, in case of a
rectifier fault.
- One rectifier RF FILTER (2), which reduces the high frequency disturbances within the limits
defined by European Standard EN 62040-2 (EN 50091-2).
- One RECTIFIER/BATTERY CHARGER (3) which converts the mains three-phase alternating
voltage into direct voltage.
- One IGBT STATIC INVERTER (4) which converts direct voltage into high quality alternating
voltage for feeding of important loads.
- A TRANSFORMER (5) that completely separates the load from battery D.C. voltage (10).
- A BATTERY (10) providing the energy required to operate the inverter in case of line voltage failure
(the battery disconnecting switch (SB) must be included in the battery cabinet or premises).
