41-181.2K
8
right stationary contact between 6.5 and 7.1
amperes.
b) The moving contact should make with the
left stationary contact between 5.5 and 5.0
amperes.
4. Time Curve
NOTE: Contact travel is from balanced position
to either the right or left stationary con-
tacts.
a) Apply 10 amperes to rear electromagnet
(front electromagnet de-energized) and
adjust permanent magnet for an operating
time to right contact of 1.0
± 0.10 seconds.
8.2. INDICATING CONTACTOR SWITCH (ICS)
Close the main relay contacts and pass sufficient dc
current through the trip circuit to close the contacts of
the ICS. This value of current should not be greater
than the particular ICS tap setting being used. The
operation indicator target should drop freely.
8.3. AC INDICATING CONTACTOR SWITCH
(ACS)
Close the main relay contacts and pass sufficient ac
current through the trip circuit to close the contacts of
the ACS. This value of current should not be greater
than the particular ACS rated operating current being
used. The operation indicator target should drop
freely.
9.0 RENEWAL PARTS
Repair work can be done most satisfactorily at the
factory. However, interchangeable parts can be fur-
nished to the customers who are equipped for doing
repair work. When ordering parts, always give the
complete nameplate data.
Figure 6. Relay Type CM Phase Balance Current With Taps And Acs Unit In Type FT-31 Case.
876A588
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