Eaton POWERWARE Plus 18, Руководство пользователя

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Functional Description
18
Bypass controls The inverter card controls Bypass Relay. The relay drives
l
output are connected to the card at J3.
5.3 POWER CONVERSION
Refer to print and figure 5-1
The input to system connects to FRU via at the back of the FRU. The
input the FCC filter to is then routed to the FRU
to The input is and filtered to produce an unregulated DC link. The
are to the DC bus by an SCR gated by the Rectifier Control card.
The card gates to produce the high frequency input to the
series resonant The converter is tuned to 30 The output of the
converter is rectified and to produce the output voltage of 410 VDC.
output is routed through the frame to the DC input (El of the inverter FRU.
and 110,120, or 127 VAC line to The filtered output is then routed to
and then to the. bypass contactor The output of is then routed
load through 1.
Refer to simplified rectifier drawing
The AC input is by to DC link. This voltage is
The
is by and to resonate at 30 The high
output of the resonant is by and D3 to produce a DC output
by DC output is regulated by varying the input frequency to the
resonant
Refer to simplified inverter drawing
The positive and negative DC to the
to
and
and are in a PWM pattern produce the AC output voltage filtered by
L7, and and C6, and
S-2 ELECTRONICS