Description; General; Test Apparatus; Installation - Marconi LORAIN RHM800E50 Manual

Section 4367
the battery is not required to furnish load cunent, it
remains in a fulb charged condition.
1.3
required to equalize the charge on all battery cells. the
FLOAT/EQUALIZE switch can be operated focally to
obtain higher equalize charge voftage. The equal&
function may also be controlled from a remote location if
desired.
1.4 Current Limftins; When an AC power failure
causes battery discharge. or if a DC overload occurs, an
output current limiting circuit prevents the increase of
output current above a predetermined vafue.
1.5
automatic current liittmg circuit which enables patallel-
adjusted to the same output voltage. In addition. a
forced load sharing circuit is furnished which ensures
1.6
increases beyond a preset value while delivering greater
than 3% of rated output current, a circuit trips open the
AC input contactor to disable rectifier output.

2. TEST APPARATUS

Refer to Table 2-1 for a lff of tools and test equfp-
2.1
ment that is suffffient to perform any test or adjustment
procedure detailed in this instructkm manuaf.

3. INSTALLATION

3.1 Equipment placement at the central office loca-
tion should be given consfderation, as discussed in the
following paragraphs.
3 2
both AC input and DC output. Optiium equipment per-
formance and cost effectiveness of the fktalfatffn can
location Of the rectifier.
3 . 3
designed for floor mounting onfy. The Cabffet base con-
tains four mounting holes which accept II2 inch dff-
Refer to the Power Data sheet for further information.
3.4
ings in tfte rectifier cabinet must remain unobstructed for
Page 2

Description

Power supply
DC Ammeter
AC Ammeter
Voltage proper component cooling during operation. Tempera-
ture of the air entering the cabinet must not exceed
3.5
for specific requirements am:
Table 310-16 (75°C) Ampacity of Power Conduc-
tors
shock.
disconnected or disabled.
3.6 General: To gain access to input, output, and
control terminals, loosen the captive fasteners securing
the meter and control panels. These panels pivot open
on separate hinges. lf less restricted access to input
and output terminals is required, remove the Phillips
type screws securing two removable panels immedi-
ately above the meter and control panels.
Model
Variable Power Supply
(O-60 VDC at 10 amps) or
stable from 15 ohms
. .
I .
O-20 amps DC
Table 2-1
Test Apparatus
installation.