Lucent Technologies Lineage 2000 J85502B-1 User manual

Lineage®2000
50-Ampere, 60-Hertz
Ferroresonant Rectifier
J85502B-1
Product Manual
Select Code 169-790-123
Comcode 107131609
Issue 6
May 1999
© 1999 Lucent Technologies

Product Manual
J85502B-1
Select Code 169-790-123
Comcode 107131609
Issue 6
May 1999
Lucent Technologies
Lineage®2000
50-Ampere, 60-Hertz
Ferroresonant Rectifier
Notice:
Every effort was made to ensure that the information in this
document was complete and accurate at the time of printing.
However, information is subject to change.
© 1999 Lucent Technologies
All Rights Reserved
Printed in U.S.A.

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Table of Contents - 1
Table of Contents
1Introduction
General Information 1 - 1
Customer Training 1 - 1
Customer Service 1 - 1
Technical Support 1 - 2
Product Repair and Return 1 - 2
Warranty Service 1 - 2
2Product Description
Overview 2 - 1
Ferroresonant Technology 2 - 2
Standard Features 2 - 2
Additional Features 2 - 4
Circuit Modules 2 - 5
Front Panel Controls and Indicators 2 - 6
Alarm and Control Flow 2 - 8
Physical, Thermal, and Electrical Specifications 2 - 9
3Ordering Information
Equipment Lists 3 - 1
Documentation 3 - 2
4Safety
Admonishments 4 - 1
Safety Statements 4 - 1
Precautions 4 - 2
Warning Statements and Safety Symbols 4 - 5
5Installation
Introduction 5 - 1
Safety 5 - 1
Preparing for Installation 5 - 1
Handling Equipment 5 - 1

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
2 - Table of Contents Issue 6 May 1999
Bay Mounting 5 - 2
Heat Dissipation 5 - 2
AC Input Power 5 - 2
DC Output Power 5 - 4
Installation Tools 5 - 5
Unpacking 5 - 5
Installing or Adding a Rectifier 5 - 6
Installing AC Power Cables 5 - 6
Installing DC Power Cables 5 - 7
Installing Plant Control Cable Assembly for a Lucent
Technologies Controller 5 - 8
Converting AC Voltage (Optional) 5 - 10
Initial Battery Charging (Optional) 5 - 10
6Testing
Introduction 6 - 1
Precautions 6 - 1
Tools and Test Equipment 6 - 2
Battery Plant Simulator Test Set 6 - 2
Test Load Connection 6 - 3
Preparation for Testing Off Line 6 - 4
Testing Off Line 6 - 8
Startup 6 - 8
Regulation (NL/FL) Test (Off Line) 6 - 9
Rectifier Failure Alarm/Fuse Alarm Test (Off Line) 6 - 9
Current Limit Test (Off Line) 6 - 10
Backup High Voltage Shutdown (HVSD) Test
(Off Line) 6 - 11
Control (TR) Test 6 - 12
Selective High Voltage Shutdown (SHVSD) and
Restart 6 - 12
Meter Calibration Test (Off Line) 6 - 12
Test for 434A or 434B Circuit Module 6 - 13
Off-Line Test Completion 6 - 13
Bringing the Rectifier On Line 6 - 14
Testing On Line 6 - 15
Regulation
(NL/FL) Test
(On Line) 6 - 16
Rectifier Failure Alarm/Fuse Alarm Test (On Line) 6 - 16
Current Limit Test (On Line) 6 - 17
Isolated Current Measuring (VI) Test (MCS or
Galaxy Controller) 6 - 18
Backup High Voltage Shutdown (HVSD) Test
(On Line) 6 - 19

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Table of Contents - 3
Meter Calibration Test (On Line) 6 - 20
Adjusting Rectifiers to Float Voltage 6 - 21
Adjusting Rectifiers Individually 6 - 21
Adjusting Rectifiers as a Group 6 - 22
7Troubleshooting and
Ad
j
ustments
Introduction 7 - 1
Removing a Rectifier from Service 7 - 1
Adjustments 7 - 5
Clear Rectifier Failure Alarm (RFA) 7 - 5
Calibrate CM3 Digital Meter 7 - 6
Adjust Isolated Current Measuring Circuit (VI) 7 - 8
Adjust Internal Selective HVSD (Battery Plant
Without Controller) 7 - 9
Adjust Current Limit 7 - 10
Restoring a Rectifier to Service 7 - 11
8S
p
are Parts and Re
p
lacement Procedures
Introduction 8 - 1
Ordering Circuit Modules 8 - 1
Handling Circuit Modules 8 - 2
Electrostatic Discharge 8 - 2
Modifying the CM1 Option Board 8 - 5
Spare Fuses 8 - 5
Replacing Circuit Modules 8 - 5
Replacing CM1 Option Board 8 - 5
Replacing CM2 Control Board 8 - 7
Replacing CM3 Digital Meter Board 8 - 8
General Information on Replacing Components 8 - 9
Replacing Components 8 - 15
Output Volts Adjust Potentiometer (R4) 8 - 15
DC Output Circuit Breaker (CBA1) and Bracket 8 - 15
Snubber Board (CA1) 8 - 15
Thyristor (Q1) 8 - 16
Diode Heat Sink Assembly 8 - 16
DC Filter Capacitors (C1, C2, or C3) 8 - 17
Rear Compartment Components: AC Inductor L1,
AC Capacitor C5, DC Inductor L2,
AC Contactor K3, Transformer T2, and Relay K2 8 - 18
Main Transformer (T1) 8 - 19
Rectifier Diode Test and/or Replacement 8 - 20
Heat Shrink Removal 8 - 21

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
4 - Table of Contents Issue 6 May 1999
Disconnecting a Rectifier 8 - 21
9Product Warrant
y

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 List of Figures - 1
List of Figures
Figure 2-1: Control Panel of J85502B-1 Rectifier 2 - 7
Figure 2-2: Signal Flow between Rectifier and Lucent
Technologies Controller 2 - 9
Figure 5-1: Four Views of the J85502B-1 50-ampere
Rectifier 5 - 3
Figure 5-2: J85502B-1 Rectifier with Door Open 5 - 3
Figure 6-1: Battery Plant Simulator Test Set 6 - 3
Figure 6-2: CM1 Option Board (ED83158-30 Grp 2, A)
Showing Test Clip Connections and Movable
Straps “Q” and “T” 6 - 7
Figure 6-3: CM2 Control Board Showing Test Clip
Connections
and Other Component Detail 6 - 8
Figure 7-1: Component Side of CM3 Digital Meter
Boards 7 - 4
Figure 8-1: Rear Compartment of the J85502B-1
Rectifier With the Cover Removed 8 - 14
Figure 8-2: Top View of J85502B-1 Rectifier 8 - 14

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 List of Tables - 1
List of Tables
Table 2-A: Digital Meter Accuracy 2 - 7
Table 2-B: Physical and Thermal Characteristics of the
J85502B-1 Rectifier 2 - 10
Table 2-C: Input Specifications for the J85502B-1
Rectifier 2 - 10
Table 2-D: Output Specifications for the J85502B-1
Rectifier 2 - 10
Table 3-A: Equipment Lists for the J85502B-1 Rectifier 3 - 1
Table 3-B: Document References 3 - 2
Table 5-A: AC Input Requirements 5 - 4
Table 5-B: DC Output Requirements 5 - 5
Table 5-C: Rectifier Settings for Initial Battery Charge 5 - 11
Table 6-A: Rectifier Control Settings for Testing Off Line 6 - 5
Table 6-B: Test Set Connections 6 - 6
Table 6-C: Rectifier Control Settings Prior to Testing
On Line 6 - 14
Table 6-D: Controls for Meter Calibration Test On Line 6 - 20
Table 7-A: Troubleshooting 7 - 3
Table 7-B: Digital Meter Tolerance 7 - 8
Table 7-C: Control Settings Prior to Restoring
Rectifier to Service 7 - 11
Table 8-A: Spare Circuit Modules 8 - 2
Table 8-B: Modifications for the CM1 Option Board 8 - 4
Table 8-C: Spare Fuse Information 8 - 5

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
2 - List of Tables Issue 6 May 1999
Table 8-D: Torque and Minimum Yield Strength for
Mechanical Connections (Using Hex Head Cap
Screws) 8 - 12
Table 8-E: Minimum Torque for all Electrical
Connections 8 - 13

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Introduction 1 - 1
1 Introduction
General
Information This product manual (Select Code 169-790-123) describes the
J85502B-1 50-ampere ferroresonant rectifier. The J85502B-1
rectifier converts commercial 208 or 240 volts ac input power at
60 hertz into highly regulated and filtered, low-noise, 24 or
48-volt dc output power for telecommunications equipment
loads. Since central offices usually obtain their electrical power
from potentially noisy commercial ac lines (and emergency
generators during commercial power failures), and since high
qualitydc power is required inorderforthe equipment to operate
correctly, the J85502B-1 rectifier is an excellent choice for any
telecommunications battery plant.
The J85502B-1 rectifier can be used with a Lineage®2000
battery plant, older vintage Lucent Technologies battery plants,
or any commercialbattery plant. With certain options, itcan also
operate off battery.
Customer
Training Lucent Technologies offers customer training on many Power
Systems products. For information call 1-972-284-2163. This
numberis answeredfrom8:00a.m.until4:30p.m.,Central Time
Zone (Zone 6), Monday through Friday.
Customer
Service Forcustomers in the United States,Canada, Puerto Rico, and the
US Virgin Islands, call 1-800-THE-1PWR (1-800-843-1797).
Services provided through this contact include initiating the
spare parts procurement process for out of service emergencies,
ordering Lucent Technologies documents, and providing other
product and service information.

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
1 - 2 Introduction Issue 6 May 1999
For other customers worldwide, call 001-972-840-0382. This
numberis answeredfrom8:00a.m.until4:30p.m.,Central Time
Zone (Zone 6), Monday through Friday.
Technical
Support Technical support for Lucent Technologies customers is
available around the world during the normal product warranty
period and also while specific contractual agreements extend
this service.
For customers in the United States,Canada, Puerto Rico, and the
US Virgin Islands, call 1-800-CAL-RTAC (1-800-225-7822) to
contact a product specialist to answer your technical questions
and assist in troubleshooting problems.
For other customers worldwide, contact your local field support
center or your sales representative to discuss your specific needs.
Product Repair
and Return Repair and return service is provided for Lucent Technologies
customers around the world. For customers in the United States,
Canada, Puerto Rico, and the US Virgin Islands, call
1-800-255-1402 for information on returning of products for
repair.
For other customers worldwide, contact your sales
representative to discuss your particular circumstances.
Warranty
Service For domestic warranty service worldwide, contact your
Warranty Service Manager (WSM). For international warranty
service, contact your sales representative.

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Product Description 2 - 1
2 Product Description
Overview In most telecommunications applications, the output of the
rectifier system is electrically connected in parallel with the
batteries. The rectifiers provide both the power to the telephone
equipment through the plant distribution and the charging and
float current to the batteries. In the event of commercial power
failure, the batteries supply the required dc power to the
telephone equipment. This transition needs no switching
because of the parallel connection of the rectifiers and batteries.
The rectifier provides alarms and accepts control signals from an
external source. It is Underwriters Laboratory (UL) listed and
Canadian Standards Association (CSA) certified. The rectifier
uses controlled ferroresonant technology, which reduces noise
and transients from commercial lines.
All components in the rectifier meet Lucent Technologies' strict
specifications and reliability standards. The rectifier uses an
extremely efficient free-convection cooling system that keeps
components operating at temperatures well below the
recommended maximum, resulting in high reliability.
Allcircuitsforpower control,alarms,voltage regulation,current
limiting, restart, plant interface, and remote monitoring/control
are mounted on replaceable circuit modules. Front access to the
circuit modules simplifies replacement or adjustment, if
required. Standardized modules simplify parts inventory,
resulting in lower costs and better equipment availability.
The rectifier can be used in a plant with or without batteries and
with orwithout a controller. One each of twoinput voltages, two
output voltages, and either negative or positive polarity may be
ordered. Each option requires different equipment that Lucent

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
2 - 2 Product Description Issue 6 May 1999
Technologies has organized into numbered lists to simplify
ordering.
Ferroresonant
Technology The J85502B-1 rectifier isa member of the Lucent Technologies
family of Lineage®2000 ferroresonant rectifiers. Like all the
rectifiersin the family, itrepresents a significant advancement in
efficiency, space savings, and serviceability. The rectifier uses
the electronically controlled, closed-loop, ferroresonant
technology developed by Lucent Technologies Bell
Laboratories. This technology provides excellent output
regulation in spite of variations in the incoming commercial line
voltage and frequency and the outgoing current or “load.”
Ferroresonant technology and the rectifier's physical design
features combine to provide reliable service, easy maintenance,
and greater cost-effectiveness on a dollars-per-output-ampere
basis.
Ferroresonant technology also:
• Eliminates internal switching transients typically associated
with other technologies;
• Reduces noise and transients from commercial lines. As the
interface between commercial power and telephone
equipment, the ferroresonant rectifier significantly
attenuates noise and lightning surges from commercial
lines;
• Introduces far less noise into closely coupled telephone
lines due to lower harmonic components in the input current
waveshape compared to other technologies;
• Provides highly efficient power conversion.
Standard
Features The J85502B-1, 50-ampere rectifier has the following standard
features.
•Output current “walk-in”: This circuit controls the time
required for the rectifier to reach its rated output voltage
after it is turned on. Initially, the output voltage is about 80
percent of normal, and gradually increases to the required
value in approximately 10 seconds. As the output voltage
“walks in,” so does output current. This feature minimizes

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Product Description 2 - 3
the starting surge on the customer’s power source and is
especially important with amore limited power source, such
as an emergency generator set.
•Internal selective high voltage shutdown: If the rectifier
voltage goes too high, and it is delivering at least 10 percent
of its rated output current, the rectifier shuts down. If the
rectifier is connected to a Lineage®2000 controller, this
feature must be deactivated and the controller furnishes the
external selective high voltage shutdown (HVSD).
•External selective high voltage shutdown: If the battery
voltage goes too high, the Lineage®2000 controller signals
all of the connected rectifiers. This signal causes the
rectifier(s) delivering at least 10 percent of rated output
current to shut down. The remaining rectifiers continue
operating. Straps on the CM1 option board must be set for
List WB.
•Backup high voltage shutdown: This circuit prevents
damage to the rectifier in the event of high battery voltage.
Each rectifier senses its own output voltage and shuts down
when this voltage exceeds a preset value. This circuit
operates if the external selective HVSD fails to operate.
This backup HVSD operates from an independent voltage
source per Bellcore standards.
•Output current limit: The rectifier provides a constant
output voltage up to its rated output current, at which point
it provides constant current. When the output current tends
to increase above the rated output, the current limit circuit
overrides the voltage regulating signal and limits the output
current of the rectifier.
•Voltage monitor circuit: This circuit monitors the ±5 and
±12 volt dc bias voltage on the control board. This circuit
shuts down the rectifier and issues an RFA alarm when
those voltages fall outside acceptable levels.
•Backup current limit: In addition to the output current
limit, the ferroresonant transformers self-limit current
output between 125-175 percent of full load, or 62.5-87.5
amperes.
•Isolated output current indication: When used with a
Microprocessor Controlled System controller, the rectifier

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
2 - 4 Product Description Issue 6 May 1999
provides an isolated 2- to 10-volt signal, corresponding to a
range of no-load to 125 percent of rated output load, which
is used to indicate the rectifier drain on the controller.
•Safety interlocks: A series-loop circuit electrically
interconnects the control circuit modules and prevents
rectifier operation if an open circuit occurs.
•Fuse alarm circuit: The low-power control functions shut
the rectifier down if a fuse alarm (FA) occurs. One fuse
alarm protects each of the regulation leads. When any FA
occurs, a Rectifier Failure Alarm (RFA) LED lights on the
front panel and an RFA signal is generated.
•Man alarm: This alarm indicates that either the rectifier
has been turned off manually or has lost commercial input
power.
•Restart circuit: The rectifier has an automatic restart
feature that is compatible with the Lineage®2000
controllers and most other controllers. If a rectifier shuts
down due to the external selective HVSD, most controllers
try at least once to restart it automatically.
•Remote sense leads: These leads permit remote regulation
of the rectifier if it is installed with a compatible controller
and the straps on the CM1 option board are set for List WA.
•TR: This signal remotely shuts down the rectifier.
•LOA: The low output alarm signals a controller that the
rectifier input voltage is below the lower limit of the
rectifier operating voltage.
•AC voltage monitor circuit: This circuit monitors the ac
input voltage and shuts the rectifier down if the ac voltage
drops below 170 volts for plants with 208-volt ac input and
195 volts for plants with 240-volt ac input.
Additional
Features Dynamic Response
For any step load change of10 to 90 percent, or 90 to 10 percent,
or a step change of 10 percent of the input voltage, the sense
point voltage remains within 5 percent of its setting, and returns
and remains in the 1/2 percent band within 300 milliseconds.

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999 Product Description 2 - 5
For batteryless operation, for any step load change of 50 to 90
percent, or 90 to 50 percent, or a step change of 10 percent of the
input voltage, the sense point voltage remains within 10 percent
of its setting, and returns and remains in the 2 percent band
within 500 milliseconds.
Electromagnetic Compatibility
The J85502B-1, 50-ampere rectifier complies with FCC Docket
20780, Part 15, Subpart J as required for Class A applications.
In addition, the rectifier meets all specified operating
characteristics when subjected to electric fields upto 10volts per
meter over a frequency range of 20 to 1000 MHz.
Circuit Modules The rectifier's signal processing and control circuitry are located
on replaceable circuit modules or packs. Circuit modules are
plug-in boards that can be ordered separately. Table 8-A lists
recommended spare parts for the rectifier. All circuit modules
areaccessible byopening the rectifier door. Figure 5-2 shows the
location of the circuit modules and other features of the rectifier.
Figures 6-2, 6-3, and 7-1 show the CM1, CM2, and CM3 board
layouts, respectively. A description of each module follows.
• The CM1 circuit module (ED83158-30 Group 2, A)
contains circuitry common to several rectifiers in the
Lineage®2000 rectifier family. The factory provides the
options required for each application by removing certain
wire straps and resistors from the CM1 board. The factory
modification of CM1 is complete when the board is
installed in the rectifier. However, ordered spare or
replacement CM1 boards have not been modified. The
customer must make this modification. See Section 8 for
information on parts to be removed and retained.
• The CM2 circuit module (205B control board) contains the
following circuits:
Local power supplies
Feedback regulator
Walk-in feature
Backup high voltage shutdown (HVSD)
Rectifier portion of external selective HVSD
Remote shutdown
Internal selective high voltage shutdown
Restart feature

Lucent Technologies Lineage®2000 50A Ferroresonant Rectifier J85502B-1
2 - 6 Product Description Issue 6 May 1999
Limited output alarm (LOA)
Fuse alarm
Electronic current limit
Output current isolation circuit
•TheCM3 circuit module (207A meter board) controls the
digital Output meter on the control panel of List 10
rectifiers. The meter displays the rectifier's output current,
voltage, or the plant battery voltage depending on the
three-position selector switch (see Figure 2-1).
•TheCA1 circuit module (ED83156-30 Group 1) contains a
triac/thyristor snubber network. Refer to schematic drawing
SD-82604-01 for further information.
• The CM5 circuit module (434A or B) has ac and dc voltage
monitor circuits. When activated, these circuits shut down
the rectifier. The dc circuit issues an RFA alarm. The
rectifier must be restarted when the problem has been
cleared. When the ac circuit is activated, the rectifier shuts
down but automatically restarts when the corrected ac
voltage is restored.
Front Panel
Controls and
Indicators
Figure 2-1 shows thecontrol panel onthefront ofthe J85502B-1
50-ampererectifier.Thefollowinglistdescribesthecontrolsand
indicators on the control panel. These features should be
observed and manually operated during normal rectifier
performance. Bold letters indicate labels that appear on the
control panel or inside the rectifier.
Caution
Equipment damage may occur if circuit modules are
connected or disconnected with voltages present. See
Section 8 for how to replace circuit modules and for
proper handling of circuit modules to avoid damage from
electrostatic discharge.