KEPCO JQE 150-1.5MVPY-26956 Half Rack - Manual (Page 33)

JQE SPECIAL SVC 081111 3-9/(3-10 Blank)
where
(I
lim B
)
e
= Current limit “B” determined by the external resistance connected to terminals
RPC1 and RPC2 of TB502.
(I
lim B
)
i
= Current limit “B” determined by the internal resistance only (with external resistance
disconnected).
R
cco
= 5 Ohms (tolerance ±1%) = the initial value of internal current control “B” for full
counterclockwise position.
R
cci
= the value of internal current control “B.” The current value of R
cci
can be measured
with the unit turned off, using a digital ohmmeter connected between terminals
RPC1 and RPC2 of rear barier strip TB502. The nominal value of R
cci
for fully clock-
wise position is 500 Ohms (tolerance ±5%).
R
cce
= the value of external resistance connected in parallel with internal current control
“B.”
NOTE: If R
cci
and R
cce
are much higher than R
cco
, the above equation can be simplified as:
Ilim B ( )
e
Ilim B ( )
i
Rcce
Rcci Rcce +
------------------------------- ⋅ =