Tweco PAK 10 - Manual (Page 16)

Specifications 4 Manual No. 0-0515
Figure 1-E Block Diagram of PAK 10 Cutting System
GAS PRESSURE
INTERLOCK
POWER
TRANS-
FORMER
SATURABLE
REACTOR
COMPARATOR
PILOT ARC
HIGH FREQUENCY
PILOT ARC
CONTACTOR
AMPERAGE
SELECTOR POT
SOLENOID
VALVES
SECOND
AR
Y
GAS
PLASMA
GAS
3-PHASE
AC POWER
CONTROL
CIRCUITS
SECONDARY GAS PRESS
PLASMA
GAS PRESS
MAIN BRIDGE
RECTIFIER
MAIN
CONTACTOR
SCR CONTROL
BRIDGE
RECTIFIER
WORK
CURRENT
SENSING COIL
(TOROID
TRANSFORMER)
PAK 10 POWER SUPPLY AND CONTROL UNIT
AMP
POS.
(RED/YEL)
TORCH
LEADS
CUTTING
TORCH
(-)
(+)
SHUNT
A-03293
NEG.
(GR/BLK)