Advertisement
c) for .2-4.35 OHM relays without sub "A"
in style number
for a cold relay, decreases R3A setting
l
7% of total R3A + R31z resistance.
for a hot relay, decrease R3A setting
l
4% of total R3A + R~F
NOTE: R3A range of adjustment may occasion-
ally be insufficient. If so, set R~F for
maximum resistance, or replace R~F
resistor with higher value.
d) For KD-10 follow instruction leaflet to ad-
jUSt R~A OI- P3A.
Suggested procedure for C3C for KD-1, KD-41,
F)
KD-11 relays.
No voltage test is required across the C3C
4
capacitor.
If C3C has been found bad (shorted or
b)
leaky) repeat P3A or R3A adjustment
above.
Suggested Procedure for Replacement of
G.
CzC, C~A Capacitors
After the capacitors have been replaced:
a>
Open relay switch 9 (phase C potential).
short terminals 7 & 9 on relay side and apply
b)
approximately 120 volts to terminals 7 and
8.
adjust RCA resistor for KD-4-41 relays
c)
and XIAC for KD-10-11 relays so contact
just floats - favoring contact opening
direction.
if desired, repeat 2.5 volts calibration point.
4
for KD & KD-1 relays, follow procedure
e)
for RMA & RMC calibration.
ABB Network Partner
ABB Power T&D Company Inc.
4300 Coral Ridge Drive
Coral Springs Florida 33065
(954) 752-6700
FAX: (954) 3455329
reSiStanCe.
Printed
in
USA
Advertisement
