EverExceed 6K - System Description; Transient Voltage Surge Suppression (TVSS) and EMI;FRI Filters; Rectifier;Power Factor Correction (PFC) Circuit

Product Description
 EPO: NC
 Parallel port: option
 Reserved: reserved for customer function, such as manual bypass, battery breaker, socket and
so on
 Terminal cover
 Input breaker: surge proection
 Bypass breaker: surge proection
 Cable proetector: cable entry, fix cables, safety
 Cold start: start UPS from battery
 Fans: intelligent fan speed control
 RS232: DB9 type, used to connect monitoring software
1.5 System description
TVS&RFI/E
MI filter
PFC INV
CHG
battery
STS
Input
source
SPS DSP
Fig 1- 3: UPS system
1.5.1 Transient Voltage Surge Suppression (TVSS) and EMI/FRI Filters
These UPS components provide surge protection and filter both electromagnetic interference (EMI)
and radio frequency interference (RFI). They minimize any surge or interference present in the
utility line and keep the sensitive equipment protected.
1.5.2 Rectifier/Power Factor Correction (PFC) Circuit
In normal operation, the rectifier/power factor correction (PFC) circuit converts utility AC power to
regulated DC power for use by the inverter while ensuring that the waveform of the input current
used by the UPS is near ideal. Extracting this sinewave input current achieves two objects:
 The utility power is used as efficiency as possible by the UPS.
PowerLead2 Series 6-10kVA UPS User Manual 6