OnLine Power Constant Power 3 - Manual (Page 17)

OnLine Power
6002-034 REV. C 1-10
1-5 REGULATOR COMPONENTS
Regulation is accomplished by solid-state electronics which control the tap switching function at the zero-current-
crossing. Refer to Section NO TAG Theory of Operation for more detail.
See Illustrations 1-5, 1-6, and 1-7 for the mounting of the regulation components.
In a Constant Power 6, the regulation components include 1 control logic board, 1 driver board, 6 SCR/SCR
snubber board assemblies, 1 current transformer, 1 reference transformer, and 1 heatsink. See Illustration 1-10
for a functional block diagram of the regulation panel components.
In the Constant Power 3, and the Mini-Power regulator, the regulation components include 1 logic board, 3 SCRs,
1 current transformer, and 1 reference transformer. See Illustration 1-11 for a functional block diagram of the
regulation panel components.
2
3
CURRENT
XFMR
MAIN INPUT
CIRCUIT
BREAKER
FUSEWIRE
(5 PIECES)
SCR/
SNUBBER
BOARD
(Qty: 6)
BYPASS
SWITCH
MANUAL
AUTO
MAIN TRANSFORMER
1
X2 N X2
REFERENCE
TRANSFORMER
SCR
DRIVER
BOARD
CONTROL
LOGIC
BOARD
4 WIRES
8 WIRES
P2
P1
P1
P4
24 VDC FOR
SHUNT-TRIP
P3
CONSTANT POWER 6 FUNCTIONAL BLOCK DIAGRAM
ILLUSTRATION 1-10