Receiving, Handling And Storage; Installation; Periodic Checks And Routine Maintenance - GE HFA54 Instructions Manual

RESET COIL
VOLTS
1 125
2
4 8
3
250
* 4 4 8
* 5 4 8
* 6 230/60H z
* 7 120/60H z
* 8 115/60H z
* 9 115/60H z
** Resistance and c�pacitance values are nominal; variation is � 10%
These relays, when not included as a part of a control panel, are shipped in
cartons designed to protect them against damage.
relay, examine it for any damage sustained in transit.
resulting from rough handling is evident,
transportation company and promptly notify the nearest General Electric Sales
Office.
Reasonable care should be exercised in unpacking the relay in order that none
of the parts are injured or the adjustments disturbed.
If the relays are not to be installed immediately, they should be stored in
their original cartons in a place that is free from moisture,
chips. Foreign matter collected on the outside of the case may find its way inside
when the cover is removed and cause trouble in the operation of the relay.
Type HFA relays should be mounted on a vertical surface.
drilling diagrams, and internal connections are shown in Figs. 4 to 13.
mounting on steel panels requires an insulating bushing for each terminal.
In view of the vital role of relays in the operation of power systems, it is
important that a periodic test program be followed.
interval between periodic checks will vary depending upon environment, type of relay
and the user's experience with periodic testing.
enough experience
requirements, it is suggested that the pickup voltages and condition of contacts be
checked at an interval of from one to two years.
ADJUSTMENTS.
* Indicates revision
GEI-68720
*TABLE I X
RESISTANCE
OPERATING
COIL VOLTS OF RESET
COIL OHMS**
125 185
4 8
26
250 74 0
250 26
230/60H z
26
230/60HZ 185
250 26
115/60HZ 26
125 26

RECEIVING, HANDLING AND STORAGE

INSTALLATION

PERIODIC CHECKS AND ROUTINE MAINTENANCE

to select the test interval best suited
RESISTANCE
OF OPER.
COIL OHMS**
2, 000
366
8, 000
8, 000
52. 8
52. 8
8, 000
13
2, 000
Immediately upon receipt of a
file a damage claim at once with the
It
Until the user has accumulated
See the section on SERVICING AND
7
EXTERNAL
RESISTOR CAPACITOR
OH�1S** 11 F**
100 5
50 15
200 5
5
200
1650 5
1650 5
200 5
5
200
100 5
If injury or damage
dust and metallic
The outline, panel
Surface
is recognized that the
to his individual