CHAPTER 2: INSTALLATION
875DP/500DP/500HV DUAL PULSE
RESISTANCE WELDING
POWER SUPPLIES
2-2
990-290
x
Tape cables together to minimize the inductive losses. A separation of weld cables surrounding an area
of one square foot could result in losses of up to 65% (figure 2-1).
x
Bolt connections directly together. Do not place washers between the terminals of the output
transformer and the terminals of the cables. Tighten connections securely, they must be free from
oxidation, dirt and/or grease (see figure 2-2).
Figure 2-1. Cable Routing Examples
Steel Weld
Head
Solenoid
Cables taped together and routed
away from steel structure and
electromagnetic field
Weld
Head
Steel Fixture
Cables not dressed together
and close to steel fixture
DON’T
DO
L o w e r Ele c tr od e
H old e r
U pp e r W e ld ing C a b le
S c re w , F lat
W a s h er , N u t
(2 Pla c e s )
L o w e r W eld in g C a b le
N o te:
At tac h b oth w elding c ab les on t he sam e sid e of th e w e ld hea d.
I ns t a ll f la t w as h e r u n de r
s c re w h e a d,
n o t
w e ld in g
c a b le te rm ina l
C ap H e a d S c re w a n d
F la t W a s h e r
Figure 2-2. Terminal Connection Examples