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TYPETR- 1 RELAY
INTERNAL SCHEMAT I C
J
Fig.
Internal Schematic
1 ampere I.C.S. in Type FT 11 case.
INSTALLATION
The relays should be mounted on switchboard
panels or their equivalent in a location free from dirt
moisture, excessive vibration, and heat. Mount the re
lay vertically by means of the four mounting holes on
the flange for semi-flush mounting or by means of the
rear mounting stud or studs for projection mounting.
Either a mounting stud or the mounting screws may be
utilized for grounding the relay. The electrical con
nections may be made directly to the terminals by
means of screws for steel panel mounting or to the
terminal studs furnished with the relay for thick panel
mounting. The terminal studs may be easily removed
or inserted by locking two nuts on the stud and then
turning the proper nut with a wrench.
For detailed FT case information refer to
41-076.
ADJUSTMENTS AND MAINTENANCE
The proper adjustments to insure correct oper
ation of this relay have been made at the factory and
should not be distrubed after receipt by the customer.
1.
Acceptance Tests
These tests are to be used for checking the
prime characteristics to demonstrate that the relay
RllirtT(F.W.)
IIIOICATIIId COII T A CTOR
SWIT C tl,
CnASSIS OPEIU. TED
Snllii TIIuiSWI T C n
T E ST
S W J T C II
Cllii.RDI T
TEST JACK
TutHIAA L
184A062
of
Type TR-1 Relay with
I.L.
2.
Fig.
Internal Schematic
0.2/2.0
ampere I.C.S. in Type FT 11 case .
received meets specifications and is in serviceable
condition.
Pass sufficient direct current through the
coils to operate the
ICS
unit the value should be between 1.
d.c. The current should not be greater than the par
ticular
ICS
tap setting being used for the
ampere
ICS
unit.
2.
Routine Maintenance
The relays should be inspected periodically, at
such time intervals as may be dictated by experience,
to insure that the relays have retained their calibra
tion and are in proper operating condition.
All contacts should be cleaned periodically.
contact burnisher
#182A836H01
this purpose. The use of abrasive material for clean
ing
contacts
is not recommended because
danger of embedding small particles in the face of
the soft silver and thus impairing the contact.
3.
Calibration
Pass sufficient d-e current through the trip cir
cuit to close the contacts of the
current should be not less than 1.0 ampere nor greater
than
1. 2
amperes for the
should not be greater than the particular
ICS JCS
2
2
IIIICATOI
COITACTOI SWITCI
OIII I T (F
••• )
of
Type TR-1 Relay with
ICS
unit. For the
1
ampere
ICS
0
and
1. 2
amperes
0.2/2.0
is recommended for
of the
ICS.
This value of
1. 0
ampere
ICS.
The current
ICS
A
tap
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