TM 5-6115-465-34
TO35C2-3-446-2
NAVFAC P-8-625-34
TM06858B/06859D-34
Figure 5-15.
Short Circuit Relay Test Circuit
(c) Adjust auto transformers Tl, T2, and
(f) Return output voltage of G1 below 24
T3 until ammeters Al, A2, and S3 indicate O. 75
Vac and open A allowing the relay to reset.
amperes each.
(g) Place switch S2 in B position and close
(d) Adjust auto transformer T1 until am-
switch S1
meter Al indicates 0.975 amperes. After 8 2 min-
utes, test lamp DSl shall extinguish and test lamp
(h) Repeat steps (d) through (f).
DS2 shall illuminate.
(i) Place switch S2 in C position and
(e) Adjust auto transformer T1 until am-
close switch S1.
meter A1 again indicates O. 75 amperes. Test lamp
DS2 shall extinguish and test lamp DS1 shall illumin-
(j) Repeat steps (d) through (f).
ate.
(k) The voltage at which relay trips in
(f) Repeat steps (d) and (e) for auto trans-
step(e), (h) and (j) shall be within 1 volt.
formers T2, and T3. Result shall be the same as for
(12) Test overload protective device as
T1.
follows:
(a) Install overload protective device in
(13) Replace any relay or protective device
test circuit shown in figure 5-16.
found to be defective.
(14) Test tactical relay resistor assembly u
(b) Activate generator G2 and power
follows :
source G1 and close switch S1. Test lamp DS1 shall
(a) Connect one lead of an ohmmeter to
illuminate.
terminal number (4, figure 5-17).
5-23
