inform ETR EVO Series, Installation And Operating Manual

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ETR EVO UPS User Manual (Ver. 1.0) Page 67
Input & Output EMI Filter: These filters (EMI – Electro Magnetic Interference) prevent
electromagnetic interference between the mains and the load. Additionally, protect UPS and loads
from any surge.
Bypass Thyristor: In case any inverter fault occurs; Bypass thyristor transfers the energy electronically
from input to output without any cut at the output.
Rectifier: The rectifier obtains a very constant DC voltage level by drawing current from the input of
where the power factor is close to 1.
Inverter: The inverter helps to obtain a very constant AC voltage level at the output by using DC
voltage at the rectifier’s output.
Battery Breker / Fast Fuse: This helps to separate battery from the rectifier electronically.
Battery: The necessary energy is supplied from the batteries when the mains is not available.
Manual Bypass Breaker: This is an automatic breaker which connects the output of the UPS to the
Bypass input. It is used mainly for maintenance purposes on the UPS without deenergizing the load
and supplying it from the mains.