Marconi LORAIN RHM800E50 User manual

I
I
I
I
I
~ I
I
I
I
I
~1
I
~ I
I
I
I
I
I
I
LORAIN@ MODEL RHMSOOE50
RECTIFIER
SPEC. NO. 548502500

MARCONI@, LORAIN@, SUB-CYCLE@‘, and Vortex@
are trademarks of Marconi Communications Inc.
02000, Marconi Communications Inc.
. . . . - -- --... -._.
.- ..-.
COMMUNICATIONS AND CONTAINS CONFIDENTIAL AND
PROPRIETARY INFORMATION OWNED BY MARCONI
COMMUNICATIONS. ANY COPYING, USE OR DISCLOSURE
OF IT WITHOUT THE WRlll-EN PERMISSION OF MARCONI
COMMUNICATIONS IS STRICTLY PROHIBITED.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I

I
Section 2992
Issue July 2000

Section 2992
Issue July 2000
Marconi Page 2 of 2 I

R ELTEC
Power Products
Section 5737
Issue Bl, September 9,1998
ADDENDUM
INSTALLER’S CONNECTIONS
INSTALLER’S INFORMATION NOTES
FOR
LORAIN@ RECTIFIERS
Remote voltage sensing lead connections should be made to the rectifier side of any
battery protective or disconnect devices present.
If a temperature compensation module is used to regulate rectifier output voltage, the
temperature compensation module battery connections should also be made to the recti-
fier side of any battery protective or disconnect devices present.
CAUTION
Turn ofl all rectifirs before removing any leads from a previously installed battery charge tem-
perature compensation module.
Power Products / 1122 F Street I Lorain. Ohio 44052-2293 / [phone]
In Canada:
RELTEC Canada
122 Edward St. / St. Thomas, Ontario N5P 122! [phone]
In Mexico:
Productos RELTEC de Mexico S.A. de C.V.
Apartado Postal 77001 I Mexico 10 D.F., MX 11200 I(525) 576.6277
~&RELTEC@

LORAIN PRODUCTS Section 5350
Issue Al, January 30,1992
ADDENDUM
PREPARATION FOR
SHUTDOWN
LORAIN o MODEL RL AND RHM
SERIES RECllFlERS
This instruction manual contains various testing, adjustment, and maintenance procedures in which the rectifier
will be shutdown either before or during the procedure. Before perforn+ng any of these procedures the load sharing
lead if installed must be removed using the following procedure then reinstalled after the test or adjustment is made.
If the load sharing lead is not removed during these procedures there is a potential for service interruption.
CAVTION
Before I-emoving the ?-sctifmrfivm swuicc. pnnkions should be made to insure that power 00 critical
&adsisMtintemtpted+andthataryextemalo&?iCzalwme associated with the recti$ier ewe
disabled, if possible. If the extended alaross cannot be disabled at the remote location, the
appropriate personne I dwaZd be notified to disregard wag @ice alarms e.ztendedfmm the rectifier
while this procedure is in progress. If the load must be mdUained while the r-e&&r is removed
frmn service, the folIowing considemtions should be made:
a) lf the rectifier is operating in parallel with one or more additional rectifiers, can the remaining rectifier(s) power
the load? If not, the load must be shutdown or an alternate DC source must be used.
b) tf a battery is to be used to provide load power during rectifier ;hutdown, is the battery fully charged and
capable of powering the load for the time required to make the adjustment.
1) Place the AC INPUT circuit breaker to the OFF position.
2) Refer to the Power Data sheet for location of the load sharing lead
3) Disconnect the load sharing lead from the terminal block and insulate exposed end.
4) Restart the rectifier by referring to the rectifier instruction manual starting and stopping section.
5) Perform the desired test, adjustment, or maintenance procedure in the rectifier instruction manual.
6) When the test, adjustment, or maintenance procedure is complete place the AC INPUT circuit breaker to the
OFFposition.
7) Reconnect the load sharing lead removed in en earlier step.
8) Restart the rectifier by referring to the rectifier instruction manual starting and stopping section.
9) This completes the procedure.
Page 1

I
Section 5350
I
LOrain kdUCt5 I 1122 F Street I Lorain, Ohio 44052-2293 I(216) 288-1122
,n Canada :
RELTECCanada
122 Edward St. /St Thomas, Ontario N5P 122 / [phone]
I” Mexico :
Productos brain de Mexico S.A de C.V.
Apartado Postal 77001 I Mexico 10 D.F., MX 11200 I(9OS) 5768277
P
e
RELTEC”
R
Page 2
I
I
I

RELTEC
Section 4387
Power Products
Issue Fl , August 4.1997
LORAld
MODEL RHM8OOE50 RECTIFIER
SPEC. NO. 548502500
CONTENTS. _ _ . _ _ . _ _ . . . . . . _ _ . _ . . . . . . . . . .
PAGE
CONTENTS (CONTD)
................ PAGE
1.
2.
3.
4.
5.
6.
DESCRIPTION
.........................
1
General ..............................
1
TESTAPPARATUS
.....................
2
INSTALLATION. .......................
2
Electrical Connections. ..................
Alarm and Control Connections. ...........
Initial Startup and Checkout.
..............
4
OPERATION ..........................
3
StartingandStopping ...................
7
Controls and Indicators .................. 7
Metering.
.............................
8
Float Charging
.........................
8
EqualizeCharging ......................
8
Automatic Rectller Shutdown
.............
8
Ripple Regulator Circuit. .................
9
Batteryless Operation ( M Option). .........
9
Cooling Fans and Temperature Sensors
.....
9
Fuses ................................
9
Circuit Cards ..........................
9
ADJUSTMENTS .......................
9
General ..............................
9
FloatVoltageAdjustment .................
10
EqualizeVoltageAdjustment
..............
11
Current Limit Adjustment
................. 12
LowVoltageAlarmAdjustment
............ 12
High Voltage Alarm Adjustment. ...........
13
LowCurrent Ahrm Adjustment
............
13
OvervoltageShutdownAdjustment
.........
14
LoadSharing Adjustment. ................ 15
Ripple Regulator Adjustment.
.............
18
CIRCUIT DESCRIPTION
.................
16
General
..............................
18
AC Input Circuit ........................
16
PowerSupply Assembly PSA-A8.
.......... 17
PowerCircuit ..........................
17
Voltageand Current RegulationCircuitry.
.... 17
Voltage Reference and Error Detection
...... 17
Current Sensing and Current Regulation.
.... 18
Pulse Generation and Phase
Control Circuits. ........................
18
Current Walk-in Circuit.
.................. 21
Negative Load Sharing Circuk
............. 21
Afarm Circuits. .........................
22
Ripple Regulator Circuit Card Al 1.
......... 23
Fuse Alarm Circuit ......................
23
Temperature Sensing Circuit
.............. 23
7.
TROUBLESHOOTING
................... 24
General. ..............................
24
Fauit Isolation Chart Use
................. 24
Testing Precautions .....................
24
Repair and Replacement Information.
....... 24
TestProcedures. .......................
31
8. MODEL DATA
.........................
37
APPENDIX
1. DESCRIPTION
General
1.1 These LorafnG Rectifiers operate from 60 Hz three
phase input. to maintain a battery in a fully charged condi-
tion while powering a load. The ModelRHMEWE50 Rec-
tifier can be operated from 480 VAC input power.
1.2 Float Charokra; This rectifier provides constant
outputvoltage; therefore, outputcurrentremains equal to
load current as long as load current does not exceed a
predetermined. adjustable value. This mode of operation
is known as float charging. Since, in normal operation,
Page 1

Section 4367
the battery is not required to furnish load cunent, it
remains in afulb charged condition.
1.3 Faualffe Charainq If a higher DC voltage is
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.
Description
Power supply
Model
Variable Power Supply
(O-60 VDC at 10 amps) or
eauivalent
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.
stable from 15 ohms
)52 ohms; 50 KW
. . I
DCAmmeter
ACAmmeter
I .
O-20 amps DC
1 O-60 amps AC
1.5 Parallelim~
This rectifier is equipped wbh an
automatic currentliittmg circuit which enables patallel-
ing with any other battery charger which can be
adjusted to the same output voltage. In addition. a
forced load sharing circuit is furnished which ensures
pmportllnal sharing of load between paralleled rectffi-
ers with compatible negative bus load sharing circuits
tien interconnected with external load sharing wiring.
Table 2-1
Test Apparatus
1.6 Ovefvoltaoe Shutdown: If rectifier output Voltage
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.
proper component cooling during operation. Tempera-
ture of the air entering the cabinet must not exceed
+wc (+122’F).
2. TEST APPARATUS
2.1
Refer to Table 2-1 for a lff of tools and test equfp-
ment that is suffffient to perform any test or adjustment
procedure detailed in this instructkm manuaf.
3.5 Wiring: All wiring and branch circuit protection
shoufd follow provisions of the current edition of the
National Electtic Code. Referenced to the 1996 edition
for specific requirements am:
3. INSTALLATION
Article 240-6 Branch Circuit Rating
3.1 Equipment placement at the central office loca-
tion should be given consfderation, as discussed in the
following paragraphs.
Table 310-16 (75°C) Ampacity of Power Conduc-
tors
mm
32 Wirtna Considerations: Location of the rectffier
should be chosen to mfniifze required lead lengtfts for
both AC input and DC output. Optiium equipment per-
formance and cost effectiveness of thefktalfatffn can
bo realized by proper location Of the rectifier.
The difiet operateafnrm AC UoltW Capabk
of prodvdng -.
perhaps fatal. electrical
shock. Bejim amlmem2ing installation.
ensum that AC and DC sources an? com@et&~
disconnected or disabled.
3.3 Mountino Reouirementx
Thii mctlfler is
designed for floor mounting onfy. The Cabffet base con-
tains four mounting holes which accept II2 inch dff-
ter bofts for securing therectiier in fts mounted positlln.
Refer to the Power Data sheet for further information.
3.4
m All ventitatffn open-
ings in tfte rectifier cabinet must remain unobstructed for
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.
Page 2

I
I
I
I
I
I
1
I
1
I
SI
I
I
I-
I
I
I
I
I
3.7
Input Connections: Connect the three phase AC
60 Hz, power leads at terminals Li . L2 and L3 on con-
tactor Kl at the left side of the rear panel.
3.8 Output Connections: Connect DC output leads to
output terminals +BAT. and -BAT at the right side of the
rearpanel.
3.9
Earth Ground (Green Wire) Connections: A
frame ground lug (GND), located near contactor Ki.
must be connected to an earth ground (green wire). Do
~connect to power system neutral.
Alann and Control Connections
WARNING
Polarity of the uo1tage se&g leads is critl-
cd. when connecting these leads. verifi con-
nectlans can?fully to assure em-rect polarity.
terminal If+) and U-1 on terminal board TB3
OPERATION
3.10 Local or Remote Voltaae Sensing: Terminals 1
(positive) and 2 (negative) on terminal board TB3 are
provided as v&age sensing terminals. These terminals
may be connected at the output of the rectiiier or
extended to sense the voltage at a remote location. To
achieve the most effective regulation of output voltage,
the sense leads should be exiended to the battery or
power board at which regulation is required.
The high w&age shutdown cfrndt is connected
acmss the output Idage leads.
3.11 Load Sharinq: This rectifier is equipped with a
negative bus load sharing circul which enables it to
divide the load in proportion to the output current ratings
wlh any oMer LORAIN RL or RHM Series rectifier of
the same output v&age rating. When both rectifiers
have compatible load sharing circuits, a load sharing
connection shoufd be made between the load sharing
terminals of each rectifier. The load sharfng terminal of
this rectifier is located at terminal board TB3 terminal 3.
Refer.to the Power Data Sheet for recommended size of
the load sharing lead and terminal bkxk capacity. For
proper operation. if is essential that each rectffier be
adjustedfor proper output voltageand load sharingloop
voltage. Refer to the ADJUSTMENT section for detailed
information.
3.12 Remote Eaualize Control: The equalize mode of
operation can be remotely controlled by providing a
Section 4367
closed circuit between terminals 4 and 5 of TB3. or by
providing positive battery voltage at terminal 4 only. An
open circus between these terminals or removal of posi-
tive battery voltage from terminal 4 restores OpemtiOnaf
mode control to the FLOAT/EQUALIZE switch on the
rectifier front panel.
3.13 Phase Loss/Reduced Load Alarm: If for any rea-
son, rectifier experiences a high ripple condition caused
by an AC input phase loss an alarm is activated and the
rectifiers output voltage and current will be at a reduced
level. Extended alarm contacts are acfiitad to provide
closed loop circuits between terminals 26 to 27 and 29
to 30 of terminal block TB3. while open loop circuits are
provided between terminals 25 to 26 and 26 to 29 of ter-
minal blodc TB3. During normal operation closed loop
circuits are provided between terminals 25 to 26 and 26
to 29 of terminal block TB3. while open loop circuits are
provided between terminals 26 to 27 and 29 to 30 Of ter-
minal block TB3.
3.14 Rectaier Fail Alarm: During normal rectiiier oper-
ation, posttiie battery is provided at T83 terminal 12 to
provide an exlemal normal operation indication. If a
rectifier failure condiikn occurs, positiie battery is
removed from TB3 terminal 12 and applied to TB3 ter-
minal 10 to actuate external rectifier fail alarms. A recti-
fier failure condition includes the following operational
modes or alarm conditions:
a)
b)
C)
d)
e)
f)
9)
t-4
High voltage alarm
Lowvoltagealarm
Lowcurrenta!arm
Partial load current limtt operation
Fan fail alarm
Heatsink over-temperature alarm
Fuse alarm
Manual or automatic removal of AC power,
includingcommercialpowerfailure condiiion
rf closed loop actuated almms are desired dfscon-
nect and insulate thejumper lead fmm TB3 termi-
nalll. C&sedlooprecti@erfailalarmisthen
provided at lB3 termfnals IO to 1 I during a recti-
fierfkil condftion.
Page 3