Page 1 ® 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...
Page 3 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.
Page 5: Table Of Contents
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table of Contents 1 Introduction General Information 1 - 1 Customer Training 1 - 1 Customer Service 1 - 1 Technical Support 1 - 2 Product Repair and Return 1 - 2...
Page 6 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 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...
Page 7 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 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 7 Troubleshooting and...
Page 8 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Disconnecting a Rectifier 8 - 21 9 Product Warranty 4 - Table of Contents Issue 6 May 1999...
Page 9 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-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...
Page 11 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-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...
Page 12 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 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 2 - List of Tables...
Page 13: Introduction
® The J85502B-1 rectifier can be used with a Lineage 2000 battery plant, older vintage Lucent Technologies battery plants, or any commercial battery plant. With certain options, it can also operate off battery. Customer Lucent Technologies offers customer training on many Power Systems products.
Page 14: Technical Support
For other customers worldwide, contact your local field support center or your sales representative to discuss your specific needs. Product Repair Repair and return service is provided for Lucent Technologies customers around the world. For customers in the United States, and Return...
Page 15: Product Description
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.
Page 16: Ferroresonant Technology
Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Technologies has organized into numbered lists to simplify ordering. Ferroresonant The J85502B-1 rectifier is a member of the Lucent Technologies ® family of Lineage 2000 ferroresonant rectifiers. Like all the Technology rectifiers in the family, it represents a significant advancement in efficiency, space savings, and serviceability.
Page 17 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 the starting surge on the customer’s power source and is especially important with a more 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.
Page 18: Additional Features
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 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.
Page 19: Circuit Modules
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 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.
Page 20: Front Panel Controls And Indicators
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Limited output alarm (LOA) Fuse alarm Electronic current limit Output current isolation circuit • The CM3 circuit module (207A meter board) controls the digital Output meter on the control panel of List 10 rectifiers.
Page 21: Figure 2-1: Control Panel Of J85502B-1 Rectifier
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 OUTPUT RECT V OUTPUT VOLTS ADJ AMPS OUTPUT – BATT V POWER RECT ALARM TEST 1/2 AMP Figure 2-1: Control Panel of J85502B-1 Rectifier Table 2-A: Digital Meter Accuracy Meter Accuracy Position ±0.5 volt for Series 1 or 2 CM3 digital...
Page 22: Alarm And Control Flow
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 accuracy of the reading depends on the vintage of the digital meter board (CM3) in the rectifier. • The POWER switch turns the rectifier on and off. When the switch is in the Off position, the rectifier cannot be turned on by the plant controller.
Page 23: Physical, Thermal, And Electrical Specifications
* Plant Control Cable Assembly is manufactured by Lucent Technologies and must be ordered separately. ® See Lineage 2000 Battery Plant documentation for details. Figure 2-2: Signal Flow between Rectifier and Lucent Technologies Controller Physical, Tables 2-B, 2-C, and 2-D give the physical, thermal, and ®...
Page 24: Table 2-B: Physical And Thermal Characteristics Of The
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 2-B: Physical and Thermal Characteristics of the J85502B-1 Rectifier Output DC Output DC ±24V ±48V Dimensions (inches) 23.25 wide x 10 tall x deep Weight (pounds) Heat dissipation* 1025 BTU/hr at full load...
Page 25: Ordering Information
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Ordering Information ® Equipment Lists Table 3-A shows the available equipment lists for the Lineage 2000 J85502B-1 rectifier. List E or F and List 1 or 2 are required depending on output voltage and controller used with the rectifier.
Page 26: Documentation
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Documentation This document is part of a set of documents developed to assist equipment engineering and installation. Table 3-B: Document References Document No. Document Description Assembly, Ordering, and Installation J85502B-1 Drawing...
Page 27: Safety
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Safety Please read this section carefully before installing, maintaining, or repairing the J85502B-1 rectifier. Admonishments Always take precautions to protect personal safety as well as the equipment when working on power systems. Throughout this manual, admonishments relating to personal safety are labeled DANGER or Warning.
Page 28: Precautions
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 National Electric Code (NEC) and/or local codes. The size of the overcurrent protector used must not exceed 80% of the value of the protector chosen. • An accessible ac disconnect/protection device to remove ac power from the equipment in the event of an emergency must be provided.
Page 29 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 batteries or the batteries are not connected to the output of the equipment. • AC voltage may be present in the unit even when the POWER switch is in the Off position.
Page 30 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 • In addition to proper job training and safety procedures, always follow these basic precautions: – Use only properly insulated tools. – Remove all metallic objects (key chains, glasses, rings, watches, or any other jewelry).
Page 31: Warning Statements And Safety Symbols
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Warning The symbols may sometimes be accompanied by some type of statement, e.g., “Hazardous voltage/energy inside. Risk of Statements and injury. This unit must be accessed only by qualified personnel.” Safety Symbols...
Page 32 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 This symbol may also be used to identify the presence of a hot surface. The marked item should not be touched without taking care. This symbol is used to identify the protective safety earth ground for the equipment.
Page 33: Installation
Lucent Technologies offers “turn-key” engineering and installation services for the products described in this product manual. Consult your Lucent Technologies representative for details.
Page 34: Bay Mounting
Rectifiers ordered as individual units are shipped in individual containers. The rectifiers mount in Lucent Technologies 26-inch wide bays, with 24-5/16 inch mounting centers. The bays have drilled holes on 1-inch centers, in the vertical plane, to accommodate #12-24 threads per inch self-tapping screws.
Page 35: Figure 5-1: Four Views Of The J85502B-1 50-Ampere Rectifier
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Figure 5-1: Four Views of the J85502B-1 50-ampere Rectifier VAC 208/240 Diode Heat Sink Assembly Switch S3 for AC Input Conversion Output Volts Adjustment Potentiometer 208 240 CBA1 WARNING Circuit Breaker...
Page 36: Dc Output Power
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 5-A shows the recommended customer-supplied fuse size and type for the branch circuit protection in the ac service panel supplying input to the rectifier. The types shown are Bussmann (a trademark of the Bussmann Company) fuses. Equivalent UL listed fuses or circuit breakers can be used in lieu of those shown.
Page 37: Installation Tools
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 positive polarity. Table 5-B specifies the dc output cable and conduit sizes. Table 5-B: DC Output Requirements Output Conduit Output Wire Connectors Amps Trade Size T&B Crimp Die Size* Required (Inches) T&B TBM5-S...
Page 38: Installing Or Adding A Rectifier
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. Pry off top, then sides of crate. 4. Inspect exposed exterior of rectifier for shipping damage. 5. With rectifier lying on its back, open the front door and visually inspect for shipping damage.
Page 39: Installing Dc Power Cables
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. Install fuse holders or circuit breaker for the rectifier in the ac distribution service panel. Leave circuit breaker in Off position or remove fuses. 4. Install two input conductors and frame ground conductor at the ac service panel, and route the conductors to the rectifier.
Page 40 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 5. Place dc return cable in cable rack. 6. Thread end of return cable through the right side of rectifier and attach connector to the appropriate terminal on TB3 in the rectifier. DC return (ground) is positive for negative output voltage plants, and negative for positive output voltage plants.
Page 41 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. Determine the number to be assigned to the rectifier in the rectifier lineup, that is, 1, 2, 3, etc. 4. If the controller is an MCS, cut leads TP0 and TP1 (pin numbers 21 and 20) in the controller end of the cable (see your controller manual).
Page 42: Converting Ac Voltage (Optional)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 7. Dress and tie down the cable to provide stress relief at the connector. The rectifier is now installed. The last two sections in this chapter are optional procedures that may be needed at installation.
Page 43: Table 5-C: Rectifier Settings For Initial Battery Charge
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 charge should be connected to the rest of the plant during this procedure. One rectifier should be sufficient to supply the charge. However, the high voltage shutdown levels must be raised to accomplish the initial charge. The following procedure describes how to raise the high voltage shutdown levels.
Page 44 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Note If the rectifier continues to operate, proceed to Step 5. If the rectifier shuts down due to initial high voltage, monitor the RECT V voltage. When this reading reaches 26 volts for 24-volt plants, or 52 volts for 48-volt plants, turn On the DC OUTPUT circuit breaker on the rectifier.
Page 45: Testing
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Testing Introduction This section gives test procedures for newly installed and/or operating rectifiers. If the plant in which a rectifier is being installed has never been operational, the plant and controller tests must be performed before the rectifier tests.
Page 46: Tools And Test Equipment
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Warning Do not turn the DC OUTPUT circuit breaker On, close an external charge circuit breaker, or install an external charge fuse until told to do so. Tools and Test The following items are needed for testing the rectifier.
Page 47: Battery Plant Simulator Test Set
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 +27V Red Test Clip To P2A-5 of CM2 To P2A-25 of CM2 2150 1 WATT To P2A-16 of CM2 2150 1 WATT To P2A-4 of CM2 2150 2150 1 WATT To P2A-12 of CM2...
Page 48: Preparation For Testing Off Line
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 4. Disconnect the rectifier's “hot” output lead from the plant charge bus bar. Tape the loose connector. 5. Disconnect the rectifier’s ground output lead from the charge ground bus bar. Tape the loose connector.
Page 49: Table 6-A: Rectifier Control Settings For Testing Off Line
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 6-A: Rectifier Control Settings for Testing Off Line Controls Status/Position Off or fuses removed and Associated ac circuit breaker holders tagged “out of or fuses at the service panel service”...
Page 50: Table 6-B: Test Set Connections
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 d. With the BAT fuse installed in the plant controller, check for battery voltage between pin 5 of J2A and ground. e. If the plant is equipped with an MCS controller, again on J2A, check for 15-20 volts dc between pins 35 and 31.
Page 51: Figure 6-2: Cm1 Option Board (Ed83158-30 Grp 2, A) Showing Test Clip Connections And Movable Straps "Q" And "T
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Moveable White Shunt Blue Straps T and Q Test Voltage Test Point Point VSK VSK VAC VAC –V CHARGE ZA ZA Q,T M Used in Backup HVSD Tests Figure 6-2: CM1 Option Board (ED83158-30 Grp 2, A) Showing Test Clip Connections and Movable Straps “Q”...
Page 52: Testing Off Line
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Figure 6-3: CM2 Control Board Showing Test Clip Connections and Other Component Detail Testing Off The following tests involve use of the test load and a Battery Plant Simulator Test Set. Refer to the paragraphs above headed Line “Battery Plant Simulator Test Set,”...
Page 53: Rectifier Failure Alarm/Fuse Alarm Test (Off Line)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. Set the test meter to the 100 volts range, and connect it to the REG jacks on the bracket of CBA1. These jacks are the same as on the rectifier control panel when the door is closed (see Figure 2-1).
Page 54: Current Limit Test (Off Line)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 6. Repeat Steps 4 and 5 for E14 and E2, E14 and E3, and E14 and E4. Current Limit Test (Off Line) Notes Adjust the current limit only after verifying that a current limit problem exists.
Page 55: Backup High Voltage Shutdown (Hvsd) Test
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 6. Decrease the load to 48-49A, 96 to 98 percent of the rectifier rating. Observe that V is greater than: – 52.03 volts (48-volt rectifier) – 26.01 volts (24-volt rectifier) Backup High 1.
Page 56: (Off Line)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 5. Restart the rectifier using the RS switch on the test set. 6. Adjust the voltage to approximately 26.0 volts (24-volt rectifier) or 52.0 volts (48-volt rectifier). The RFA lamps on the rectifier and the test set should go out.
Page 57: Test For 434A Or 434B Circuit Module
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 207A digital meter board needs adjustment (see “Calibrate CM3 Digital Meter” in Section 7). Test for 434A or 1. Turn the rectifier On/Off switch to On. Adjust the load 434B Circuit about 20-30% of rectifier rated current capacity.
Page 58: Bringing The Rectifier On Line
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Bringing the The following steps bring the rectifier into service in preparation for testing on line. The term “on line” means that a battery string Rectifier On and/or office load is connected to the rectifier.
Page 59: Testing On Line
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 a. Turn the rectifier POWER switch On. The green POWER LED must light. Wait 10 seconds. Note If the rectifier continues to operate, proceed to the next paragraph. If the rectifier shuts down due to initial high voltage, monitor the RECT V voltage.
Page 60: Regulation (Nl/Fl) Test (On Line)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 If the rectifier fails any of the following tests, replace the CM2 control board (see Section 8) and begin testing again: • Regulation (NL/FL) Test (On Line • Rectifier Failure Alarm/Fuse Alarm Test (On Line) •...
Page 61 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 control panel. Note that the rectifier shuts down and the RFA LED on the control panel lights. 2. Turn the POWER switch Off, then back On. The RFA LED should go off.
Page 62 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. If the output current is not within 50-51A, the current limit needs adjustment. See “Adjust Current Limit” in Section 7. Note At the rated output current of the rectifier, the shunt voltage is 40 millivolts.
Page 63: Backup High Voltage Shutdown (Hvsd) Test
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 7. If the rectifier drain indication is between 0 and 2% lower than the amperes calculated in Step 4, adjust potentiometer R35 on CM2 control board to obtain a rectifier drain reading that is between 0 and 2% higher than the amperes calculated in Step 4.
Page 64: (On Line)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 6. Restart the rectifier by turning the POWER switch Off then back On. 7. Adjust the voltage to approximately 26.0 volts (24-volt rectifier) or 52.0 volts (48-volt rectifier). The RFA LED on the rectifier should go out.
Page 65: Adjusting Rectifiers To Float Voltage
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Meter” in Section 7 to calibrate the meter and repeat this procedure from Step 1. Note Series 3 CM3 boards can be identified by the designation “AM3” (or greater than 3) which is stamped on the wiring (noncomponent) side of the board.
Page 66 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 time of the adjustments must be less than the capacity of the smallest rectifier. 1. Measure the battery voltage by holding the meter selector switch in the BATT V position. 2. If the battery voltage is not the pre-determined float...
Page 67 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 c. Check the battery voltage and repeat Steps a and b above until the battery voltage is within the required tolerance of the desired float voltage. 3. If all rectifiers are not carrying some load current (between...
Page 69: Troubleshooting And Adjustments
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Troubleshooting and Adjustments Introduction This section provides troubleshooting information and ® adjustment procedures for the Lineage 2000 J85502B-1 rectifier. Whenever working on or near electrically live equipment, observe all safety precautions given in Section 4 and within each procedure.
Page 70 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 5. At the plant controller, remove the REG fuse associated with the rectifier. 6. At the rectifier, loosen the locking screws and open the door. 7. Locate the CM2 control board.
Page 71: Table 7-A: Troubleshooting
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 7-A: Troubleshooting Problem Probable Cause Probable Corrective Action 1. Check for ac input voltage to rectifier. 2. Check for ac voltage on secondary of T2. 1. Rectifier will not See SD-82604-01.
Page 72: Figure 7-1: Component Side Of Cm3 Digital Meter Boards
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Digital Meter Potentiometer Connection for J1B from CM2 Control Board Series 3 Digital Meter Board Connection for J1B from CM2 Control Board Digital Meter Potentiometer Series 1 or 2 Digital Meter Board...
Page 73: Adjustments
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Adjustments This section includes procedures to check fuses (Clear RFA), calibrate the digital meter, adjust the isolated current measuring circuit, and adjust the current limit. Clear Rectifier Refer to Figure 2-1.
Page 74: Calibrate Cm3 Digital Meter
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 RFA problem has been cleared. Otherwise, continue the procedure. c. If replacing the CM2 control board does not clear the problem, then windings 11 and 12 of T1 may be open.
Page 75 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 from the switch and push in the latches on each standoff. Do not disconnect any connector(s) leading to the control board. Pull the CM3 board a short distance away from the door so that the board may be turned over with the component side facing you.
Page 76: Table 7-B: Digital Meter Tolerance
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 7-B: Digital Meter Tolerance Meter Position Tolerance ±0.5 volt for Series 1 or 2 CM3 boards RECT V ±0.02 volt for Series 3 CM3 boards AMPS ±2.5 percent of rectifier rating* Notes: To compare, measure the shunt voltage.
Page 77: Adjust Internal Selective Hvsd
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Figure 6-3 shows test points and components on the CM2 control board. Other “E” test points are always positive with respect to either E14 or E15 for all voltage measurements. The plant control cable connector J2A MUST be connected to P2A on CM2 for this procedure.
Page 78: Adjust Current Limit
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 2. Adjust the test load to 55A, 10 percent, or more, above the rectifier's current rating. Read the load current on the OUTPUT meter. 3. Adjust the OUTPUT VOLTS ADJ potentiometer to obtain a rectifier voltage of 27.5 ±0.2 volt (24-volt...
Page 79: Restoring A Rectifier To Service
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 In Steps 4 and 5 of the “Current Limit Test (Off Line)” in Section 6, if V is not within the required range, adjust R52 on CM2, (see Figure 6-3), until a correct voltage reading is obtained.
Page 80 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Notes If the rectifier continues to operate, proceed to Step b. If the rectifier shuts down due to initial high voltage, monitor the RECT V voltage. When this reading reaches 26 volts for 24-volt plants, or 52 volts for 48-volt plants, turn On the circuit breaker.
Page 81: Spare Parts And Replacement Procedures
CM1 option boards, and handling precautions. This section also provides complete disassembly procedures for replacing components. Ordering Lucent Technologies combines into spare parts kits CM1, CM2, and CM3 circuit boards, described in Section 2, “Circuit Circuit Modules Modules.” Kit number H569-358 L17 contains these replaceable boards for the J85502B-1 rectifier.
Page 82: Handling Circuit Modules
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 8-A: Spare Circuit Modules Lucent Order Technologies Part Number Description Comcode (ED-83158-30 Option Board G2, A) CM2 (205A1 or 104428735 Control Board Kit Number 205B) H569-358 L17 Digital Meter 104032693...
Page 83 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Caution Grounded antistatic wrist straps must be worn for all circuit pack handling. The alligator clip connector of the wrist strap must be connected to a bare metal frame ground. The wrist strap must contact the skin and is not to be worn over clothing.
Page 84: Table 8-B: Modifications For The Cm1 Option Board
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 food wrappers, clear plastic bags, styrofoam containers, packing material, drinking cups, notebooks, and nonconductive plastic solder suckers. The insulation on small hand tools does not represent a static hazard. • Keep adhesive tape (Scotch, masking, etc.) away from static-sensitive devices.
Page 85: Modifying The Cm1 Option Board
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Modifying the As described in schematic drawings SD-82604-01, replacement CM1 option boards are supplied with all wire straps and CM1 Option resistors in place. The same wire straps and resistors that were...
Page 86 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 3. At the ac service panel supplying power to the rectifier, remove the input fuses assigned to the rectifier, or turn the circuit breaker Off. 4. At the plant controller, remove the REG fuse associated with the rectifier.
Page 87: Replacing Cm2 Control Board
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 17. Reconnect all cables that were disconnected in Step 8. 18. If the rectifier is to be restored to service, refer to “Restoring a Rectifier to Service” in Section 7. Replacing CM2 Follow instructions in “Handling Circuit Modules”...
Page 88: Replacing Cm3 Digital Meter Board
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 9. Disconnect the J3A connector on the cable from the CM3 digital meter board. 10. Remove the CM2 control board from the six support standoffs by using a small flat-blade screwdriver to push in the latches on each standoff.
Page 89: General Information On Replacing Components
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 6. Locate the digital meter board. Caution Support the CM3 digital meter board with your hands when connecting and disconnecting the cables or damage to the board may result. Do NOT disconnect cables by pulling the cable.
Page 90 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 DANGER The following disassembly or reinstallation procedures MUST be performed only on a rectifier completely disconnected from the plant battery buses, AND with no input from the ac service panel connected to the rectifier. The plant control cable J2A should also be disconnected from the CM2 board.
Page 91 Some capacitor blowholes cannot be viewed directly until removed, or almost removed, from the rectifier. A dental-type mirror aids in viewing these capacitors' blowholes before disassembly. Lucent Technologies recommends that all dc capacitors in a rectifier be replaced whenever any one of them blows.
Page 92 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 8-D: Torque and Minimum Yield Strength for Mechanical Connections (Using Hex Head Cap Screws) Cap Screw Min. Yield Torque (ft-lb) Diameter (inch) Strength (PSI) 57,000 5/16 57,000 57,000 7/16 57,000...
Page 93 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Table 8-E: Minimum Torque for all Electrical Connections Torques in In-lb Or (Ft-lb) Wire Connections Head Tightened Nut Tightened Slotted Screw Size Hex Or Hex Or Slotted Slotted Machine Socket Socket...
Page 94: Figure 8-1: Rear Compartment Of The J85502B-1
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Figure 8-1: Rear Compartment of the J85502B-1 Rectifier With the Cover Removed Figure 8-2: Top View of J85502B-1 Rectifier 8 - 14 Spare Parts and Replacement Procedures Issue 6 May 1999...
Page 95: Replacing Components
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Replacing Disconnect the rectifier as described in “Disconnecting a Rectifier,” below. Refer to Figures 5-2, 6-3, 8-1, and 8-2 for Components component locations. DANGER The following disassembly or reinstallation procedures MUST be performed only on a rectifier completely disconnected from the plant battery buses, AND with no input from the ac service panel connected to the rectifier.
Page 96: Thyristor (Q1)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 2. Remove the quick-disconnect connectors from the CA1 board. 3. Remove the CA1 board from its support standoffs, one at a time, by pushing in on the spring-loaded tabs while pulling out on each corner of the board.
Page 97: Dc Filter Capacitors (C1, C2, Or C3)
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 DC Filter Capacitors (C1, DANGER C2, or C3) DC capacitors may be charged even with power disconnected from the rectifier. This would be true if the main bus bar fuses are open. Always check all of the dc capacitor terminals (observe polarity) with a voltmeter before performing this procedure.
Page 98 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 7. Rotate the top of capacitor/bus bar assembly forward until capacitor terminal screws (through bus bars) can be accessed. 8. Noting their connection points, remove screws holding desired capacitor(s). 9. During reinstallation, use caution when reinstalling leads to capacitors to avoid stripping the threaded copper capacitor terminals.
Page 99: Rectifier Diode Test And/Or Replacement
® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Main Transformer (T1) Notes This procedure assumes that the rectifier has been removed from the bay and that all covers of the rectifier have been removed. Lead numbers refer to T1 unless otherwise noted.
Page 100 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 14. Remove the two nuts that hold the lower angle bracket to the frame. 15. Remove the four nuts that hold T1 to the left side of the frame. 16. Rotate the center mounting plate diagonally, counterclockwise, and forward.
Page 101 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 DP125, comcode 405229154) that was saved in Step 1. Install the new stud nut and torque to 100-125 in/lbs. This completes the rectifier diode replacement procedure. If maintenance is completed, reinstall the diode heat sink assembly according to the “DC Filter Capacitors”...
Page 102 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 2. At the ac distribution service panel, remove the fuses or open the circuit breaker supplying the rectifier with ac power. Tag fuse holders or circuit breaker to instruct all personnel to leave the circuit open (Off).
Page 103 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 11. Baffles between rectifiers in bays may have to be removed. 12. The rectifier may be attached to the lifting device of your choice before the mounting screws on each side of the unit are removed.
Page 105 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 Product Warranty A. Seller warrants to Customer only, that: 1. As of the date title to Products passes, Seller will have the right to sell, transfer, and assign such Products and the title conveyed by Seller shall be good;...
Page 106 ® Lucent Technologies Lineage 2000 50A Ferroresonant Rectifier J85502B-1 WARRANTY PERIOD Product Type New Product Repaired Product or Part Central Office Power 24 Months 6 Months Equipment *The Warranty Period for a repaired Product or part thereof is as listed or, in the case of Products under Warranty, is the period listed or the unexpired term of the new Product Warranty Period, whichever is longer.
Page 107 FOR A PARTICULAR PURPOSE. CUSTOMER'S SOLE AND EXCLUSIVE REMEDY SHALL BE SELLER'S OBLIGATION TO REPAIR, REPLACE, CREDIT, OR REFUND AS SET FORTH ABOVE IN THIS WARRANTY. © 1999 Lucent Technologies All Rights Reserved Printed in U.S.A. Issue 6 May 1999...

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