Emerson Energy Systems UM6C28C ( 167-9021-102 ) MFA150 Modular Front Access Power SystemNT6C28C User Manual P0728920 Standard 11.
MFA150 Modular Front Access Power SystemNT6C28C User Manual Manual Number : UM6C28C ( 167-9021-102 ) Manualt Issue : 11.00 Manual Status : Standard Release Date : October 2001 P0728920 Copyright 2001 Astec International Ltd All Rights Reserved Published in Canada The information contained in this manual is the property of Astec International Ltd and is subject to change without notice.
Publication history October 2001 Standard Issue 11.00. In Tables 31 and 32 the prefix of the CPC Numbers was A0. The manual was modified to reflect the Emerson Energy Systems and Emerson Network Power identities. In the “ Technical service assistance “ chapter the telephone numbers were updated. ( EC 102-28532 ) April 2001 Standard Issue 10.00. Manual modified to reflect Emerson identity. ( EC 102-26046 ) May 2000 Standard Issue 9.0. Modifications throughout and reference to manual number UM6C28C added.
Publication history May 1992 Issue 3.0 Standard. November 1991 Issue 2.0. Standard. June 1991 Issue 1.0. Standard. UM6C28C P0728920 Standard 11.
Contents About this manual.............................................................................................. 13 Purpose of this manual ........................................................................................ 13 Applicability of this manual................................................................................... 13 How this manual is organized .............................................................................. 13 Other documents ............................
Contents Overall power system specifications .................................................................... 34 Mechanical specifications of a complete NT6C28C(x) MFA150 .................... 34 Color ............................................................................................................... 34 Electrical ......................................................................................................... 34 Electromagnetic interference (EMI) compliance.........................
Contents 9 Appendix D : Reference documents ................................................................ 91 Abbreviations and acronyms............................................................................ 93 List of Figures Figure 1 – Front view of a typical NT6C28C(x) MFA150 power system with shelf mounted batteries ......................................................................................
Contents Table 3 – Mechanical specifications of the MPS75 and MPS150 power shelves .........21 Table 4 – Mechanical specifications of the MPR15 rectifier ........................................22 Table 5 – Electrical specifications of the MPR15 rectifier............................................24 Table 6 – Mechanical specifications of the MPR25 rectifier ........................................24 Table 7 – Electrical specifications of the MPR25 rectifier............................................
Contents 11 Procedure 9 – Replacing a distribution circuit breaker .................................................65 Procedure 10 – Replacing the LVD contactor...............................................................
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About this manual Purpose of this manual This manual provides all the necessary information to operate and maintain an NT6C28C(x) MFA150 power system. The installation procedures for the NT6C28C(x) MFA150 power system are covered in installation manual IM6C28C ( 167-9021-133 ). Applicability of this manual This manual applies to NT6C28C(x) MFA150 power systems having any configuration of controller, rectifier, distribution, monitoring and battery equipment.
About this manual Other documents In addition to the present manual, the following documentation may also be required for the operation and maintenance of the NT6C28C(x) MFA150 power system: • User Manual for other Emerson Energy Systems products, such as the rectifiers, the RPM1000C, and the Helios TCM/48 as required ( see the list in Appendix D ) • configuration sheets for the RPM1000C • User Guides for the products of other manufacturers ( for example : batteries ). UM6C28C P0728920 Standard 11.
Introduction Description The NT6C28C(x) MFA150 power system is a positive ground, –48 V dc nominal, 150 A capacity power system consisting of a control and distribution panel and power shelves which support plug-in rectifiers mounted on a relay rack type framework.
Introduction Distribution is achieved through the circuit breakers and fuses on the control and distribution panel. The NT6C28C(x) MFA150 utilizes 15, 25, or 50 A rectifiers connected in parallel as building blocks to reach the maximum capacity of 150 A. The rectifiers operate from a 208 V or 240 V single phase 50/60 Hz AC source, except for the 15 A rectifier which operates from a 115 V ac source.
Introduction 17 Figure 1 – Front view of a typical NT6C28C(x) MFA150 power system with shelf mounted batteries RPM1000C intelligent controller/monitor MPS75 power shelves NT6C14G control and distribution panel MFA150 RPM1000C F1 F4 . . . . . ¨ Helios Rectifiers 25/48 .
Introduction Figure 2 – Front view of a typical NT6C28C(x) MFA150 power system with larger VRLA batteries mounted beside the framework Battery disconnect panel MPS150 power shelves Externally mounted VRLA batteries NT6C14G control and distribution panel Helios Rectifiers 50/48 Free standing seismic framework UM6C28C P0728920 Standard 11.
Specifications Frameworks The NT6C28C(x) MFA150 mounts on a variety of relay rack type frameworks from 25.36 inches ( 64.41 cm ) to 84 inches ( 213.36 cm ) high. The mechanical specifications of these frameworks are listed in Table 1. Table 1 – Mechanical specifications of the frameworks Framework type Standard Height Depth Width Weight 7 feet 15.0 inches 24.13 inches 51 lbs ( 2.13 m ) ( 38.1 cm ) ( 61.29 cm ) ( 23.13 kg ) Seismic, top 7 feet 15.0 inches 24.13 inches 55 lbs braced ( 2.13 m ) ( 38.
Specifications Figure 3 shows a front view of the NT6C14G control and distribution panel equipped with the analog controller card and without an LVD feature, while Figure 4 shows a front view of the NT6C14G control and distribution panel equipped with the RPM1000C intelligent controller and with an LVD feature.
Specifications 21 • Operating voltage nominal: –48 V dc range: • • • • • –45 to –60 V dc Number of circuit breakers: up to 16 Circuit breaker capacity (see Appendix B for list): 1-100 A Number of fuses: 5 or 8 Fuse type: QFF QFF fuse rating (see Appendix B for list): .180 to 5 A Power shelves, 75 A and 150 A Mechanical specifications of the power shelves The mechanical specifications of the MPS75 (75 A) and MPS150 (150 A) power shelves are listed in Table 3.
Specifications Figure 6 – Front view of the MPS150 power shelf (shown without the rectifiers) J9 J8 J7 AC INPUT TB1 1 2 GRD 3 4 5 6 J2 J1 Position 3 48 J3 J11 J10 Position 2 J12 J6 J5 Position 1 Electrical specifications of the power shelves Each rectifier position provides interconnection points for AC input, DC output and control and alarm signals. The total output capacity for each shelf is 75 amperes for the MPS75 power shelf and150 amperes for the MPS150 power shelf.
Specifications 23 Figure 7 Height 6.60 inches ( 16.76 cm ) Depth 11.25 inches ( 28.58 cm ) Width 6.0 inches ( 15.24 cm ) Weight 14.3 lbs ( 6.
Specifications Electrical specifications MPR15 rectifier The electrical specifications of the MPR15 rectifier are listed in Table 5. Table 5 – Electrical specifications of the MPR15 rectifier Parameter Input voltage: Input current: Recommended AC service input: Output voltage: Output current: Input protection: Output protection: Efficiency: Power factor: Heat dissipation: Specifications 110/120 V ac, one phase, 47-63 Hz Input voltage range: 96 to 132 V ac 10.
Specifications 25 Figure 8 – Front view of the MPR25 rectifier EQL FLT FAN HVSD ON/RFA DC/CC AC/CA F1 OUTPUT V+ V– SORTIE Emerson Energy Systems 3/4A 250V LOAD/ CHARGE MPR25 MFA150 Power SystemNT6C28C User Manual
Specifications Electrical specifications of the MPR25 rectifier The electrical specifications of the MPR25 rectifier are listed inTable 7.
Specifications 27 Figure 9 – Front view of the Helios Rectifier 25/48 EQL FLT FAN HVSD RFA CL FS SLS OUTPUT DC/CC AC/CA HELIOS V+ Rectifier 25/48 V– SORTIE V D E LOAD/CHARGE Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
Specifications Electrical specifications Helios Rectifier 25/48 The electrical specifications of the Helios Rectifier 25/48 are listed in Table 9. Table 9 – Electrical specifications of the Helios Rectifier 25/48 Parameter Input voltage: Input current: Recommended AC service input: Output voltage: Output current: Input protection: Output protection: Efficiency: Power factor: Heat dissipation: Specifications 208/240 V ac, one phase, 47-63 Hz Input voltage range: 176 to 264 V ac 7.
Specifications 29 Figure 10 – Front view of the Helios Rectifier 50/48 3/4A EVITER TOUT RISQUE D'INCENDIE NE REMPLACER LES ATTENTION POUR FUSIBLES QUE PAR DES FUSIBLES DU MEME TYPE ET DU MEME CALIBRE PROTECTION AGAINST RISK OF CONTINUED CAUTION FOR FIRE REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE 250 v CA/AC CL ADJ VOLT AMP EQL ADJ EQL HELIOS FLT Rectifier 50/48 FLT VOLT CUR CAL ADJ V CAL AMP CC/DC AC ON HVSD SEN FAIL Emerson Energy Systems FAN ALM CL RFA EQL VOUT+ VOUT- HVSD ADJ
Specifications Table 10 – Mechanical specifications of the Helios Rectifier 50/48 Figure 10 Height 12.9 inches ( 32.77 cm ) Depth 12.0 inches ( 30.48 cm ) Width 6.0 inches ( 15.24 cm ) Weight 22.0 lbs ( 9.98 kg ) Electrical specifications Helios Rectifier 50/48 The electrical specifications of the Helios Rectifier 50/48 are listed in Table 11.
Specifications 31 RPM1000C ( optional ) Mechanical specifications of the RPM1000C The mechanical specifications of the RPM1000C are listed in Table 12. Table 12 – Mechanical specifications of the RPM1000C Figure 11 Height 6.6 inches ( 16.76 cm ) Depth 8. 5 inches ( 21.59 cm ) Width 2.2 inches ( 5.59 cm ) Weight 4.15 lbs ( 2.04 kg ) In the MFA150, the RPM1000C is plugged and inserted at the front of the control and distribution panel in order to maintain the “front access” status of the power system.
Specifications Electrical specifications of the RPM1000C The input voltage of the RPM1000C is –48 V dc nominal with a range of -42 V dc to –60 V dc. The input current drain is 200 mA. For more detailed electrical specifications of the RPM1000C, refer to the appropriate user manual listed in Appendix D.
Specifications 33 NT6C18EA/EB battery disconnect panel ( optional ) Mechanical specifications of the battery disconnect panel The mechanical specifications of the NT6C18EA/EB battery disconnect panel are listed in Table 14. Table 14 – Mechanical specifications of the battery disconnect panel Figure 13 Height 1.71 inches ( 4.34 cm ) Depth 3.61 inches ( 9.17 cm ) Width 23.0 inches ( 58.42 cm ) Weight 5.1 lbs ( 2.
Specifications Overall power system specifications Mechanical specifications of a complete NT6C28C(x) MFA150 The mechanical specifications of a complete NT6C28C(x) MFA150 power system are listed in Table 16. Note: The weight of the system is based on the power system configuration shown in Figure 2, but without the batteries as too many different battery options are available.
Specifications 35 Transportation Note: Do not ship with the rectifiers installed in the rectifier framework(s). During transportation the equipment may be subjected to the following conditions without damage: • Temperature: -50° to +75°C (-58° to +167°F) • Humidity: 0 to 95% (non condensing) 4kPa max. WVP for 10 days • Vibration: GR-63-CORE section 5.4.3 Transportation Vibration-Packaged Equipment • Shock: GR-63-CORE, Section 5.3.1 Handling Drop Tests-Packaged Equipment and section 4.4.
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Operation General This chapter describes the control, adjustment and operational features of the NT6C28C(x) MFA150 power system. NT6C14G control and distribution panel The NT6C14G control and distribution panel uses a very compact design, but without compromising on the accessibility and functionality.
Operation Figure 15 – Control, alarm and operational features on the front panel of the NT6C14GA/GM and NT6C14GP control and distribution panels EQL 0FF ON MFA150 SENSE EQL RFA MAJ RFA MIN FA VOLTS NT6C14G VOLTS/AMPS REL SER 1 1/3 A AMPS NORMAL BYPASS LVD ADJ F1 LVD ALM F2 F3 F4 TST ADJ TST BYPASS LVDR LV ALM LV ADJ 1 6 CB1 2 3 4 CB5 6 7 8 9 CB10 11 12 13 14 15 CB16 CAUTION / ATTENTION SENSE BAT GRD -48V Figure 16 – Enlarged view of the controller card section EQL OF
Operation 39 Table 18 – Visual indicators Designation EQL RFA MIN RFA MAJ FA LVD ALM* TST BYPASS LV ALM Description To indicate that the equalize function is activated. To indicate a minor rectifier failure alarm. To indicate a major rectifier failure alarm. To indicate a fuse and circuit breaker alarm. To indicate a low voltage disconnect alarm.
Operation Table 20 – Potentiometers Designation LVD ADJ* TST ADJ LVDR* LV ADJ Note: Description To adjust the low voltage disconnect threshold To adjust the internal test voltage used for the setting of other thresholds To adjust the low voltage disconnect reconnect threshold To adjust the low voltage alarm threshold * See the Note in the “Front of the NT6C14GA/GM and NT6C14GP control and distribution panels” section.
Operation 41 The mid trip circuit breaker will trigger an alarm only when it is electrically tripped ( for example : overload ), not when it is manually put in the OFF position. Note : Circuit breakers with a capacity of more than 80 A must be located adjacent to circuit breakers having a capacity of less than 65 A.
Operation Table 24 – TB3 pin assignment on the controller card Pin number 1 2 3 4 Description + to LVD contactor coil – to LVD contactor coil Charge busbar (–48 V) BRG busbar Pin number 5 Description FA IN (–48 V) 6 FA IN (–48 V) 7 VR+ (BRG) 8 VR– (–48 V) Connectors There are ten connectors on the controller card for internal wiring terminated with connectors, as shown in Tables 25 and 26. Note: Connector J8 is for internal use only.
Operation 43 Figure 17 – Control, alarm and operational features on the front panel of the NT6C14GC/GN control and distribution panels MFA150 UN IT FA BOD REL RFA M I N LVD SER RFA MAJ AC FLOAT MODE S1 F1 F2 F3 F4 NT6C14G EQL LVD BYP NORM FAN AUX LVD BYP HVSD LVD LVR HVSD RPM1000C CAUTION / ATTENTION RS-232 SENSE MAIN R.I.C.
Operation Visual indicators A red LED readout displays the values of the analog channels selected with the MODE push-button (S1), and 12 or 13 LED indicators to display the conditions described in Table 27.
Operation 45 LVD MANUAL RECONNECT ( option ) This option consists of adding a strap identified as “Manual reconnect jumper” between pins 3 and 9 of TB1 on the NT6C14PA LVD circuit board (located on the back of the front door of the control and distribution panel). When this option is provided, the load will not reconnect automatically after disconnecting due to a low voltage condition.
Operation Table 29 – Fuses Designation SENSE MAIN R.I.C. AN1 F1 to F4 Description Protection fuse for the sense leads of the rectifiers. Protection fuse for the main board inside the RPM1000C. Protection fuse for the rectifier interface board inside the RPM1000C. Protection fuse for the analog channel 1 of the RPM1000C. Protection fuses for loads as required. Circuit breakers There are up to 16 standard trip or mid trip circuit breakers for the protection of loads as required.
Operation 47 Rectifiers The rectifiers provide isolated, filtered and regulated DC power, from a single-phase AC source, for powering the load while charging a positive grounded battery. The output is adjustable over a range of –46 to –59.5 V for floating a 23or 24-cell battery string. The rectifiers are equipped with AC input and DC output circuit breakers, a digital ammeter, potentiometers for adjusting the thresholds, and LED indicators for alarm indications.
Operation NT6C18EA/EB battery disconnect panel ( optional ) The NT6C18EA/EB battery disconnect panel is used to manually disconnect the battery strings (up to two) from the power system for maintenance purpose. When a circuit breaker is in the OFF position, the FA indicator on the panel itself is lit, and an alarm signal (FA) is sent to the control and distribution panel for further extension to the external alarm circuits.
Maintenance Routine maintenance The following is a list of general preventive maintenance procedures which should be performed periodically as required by the environmental conditions and the local maintenance policy to ensure trouble-free operation of NT6C28C(x) MFA150 power system: • • • • • • • clean all ventilation openings clean, or replace the filters ( if provided ) tighten all the electrical connections check for hot fuses or breakers ( loose, undersized, or overloaded ) verify the alarm thres
Maintenance Troubleshooting Table 30 provides a list of the problems which can occur on NT6C28C(x) MFA150 power system, along with their possible causes. Blown fuses and tripped circuit breakers must always be investigated before referring to this table. WARNING Precautions to take to avoid service interruptions When working on a live power system, the low voltage disconnect contactor ( if provided ) should be kept from tripping.
Maintenance 51 Table 30 – Fault diagnosis ( continued ) Fault symptom Failure to generate an RFA alarm under appropriate conditions Rectifiers are not sharing the load Possible causes Faulty rectifier Faulty wiring Faulty RFA MIN or RFA MAJ LED Incorrect float or equalize adjustment on one or more of the rectifiers Sense leads are open on one or more rectifiers Share mode incorrectly set on one or more rectifiers LVD contactor does not Incorrect LVR or LVDR threshold setting reconnect the load Faulty cont
Maintenance Table 30 – Fault diagnosis ( continued ) Fault symptom Possible causes On all models of control and distribution panels: EQL lamp is lit The equalize mode is activated RFA MIN lamp is lit One rectifier has failed RFA MAJ lamp is lit Two or more rectifiers have failed FA lamp is lit Blown fuse or tripped circuit breaker on the control and distribution panel LVD ALM lamp is lit Low voltage disconnect condition initiated by the controller LVD BYP lamp is lit The low voltage disconnect contactor
Maintenance 53 CAUTION Precautions to take to avoid service interruptions When working on a live power system, the low voltage disconnect contactor (if provided) should be kept from tripping. To do this, insert a 1/4-inch ( 3 mm ) wide electrically isolated tool ( preferably plastic ) in the small opening on the side of the contactor assembly to lock it closed. See Figure 19.
Maintenance Procedure 1 – Replacing the NT6C14PF controller card ( continued ) Step 14 15 16 17 18 19 20 21 22 23 24 25 Action Turn the TST ADJ potentiometer slowly counterclockwise and verify that the LV ALM indicator lights up at the appropriate voltage level. If the LV ALM indicator lights up before the appropriate voltage level is reached or does not light up, adjust the LV ADJ potentiometer until the LV ALM indicator lights up at the appropriate voltage level.
Maintenance 55 Procedure 1 – Replacing the NT6C14PF controller card ( continued ) Step 26 27 Action Reinstall the top cover and close the front door securing it with the captive screw. Notify the alarm centre at the end of the procedure.
Maintenance WARNING Precautions to take to avoid service interruptions When working on a live power system, the low voltage disconnect contactor (if provided) should be kept from tripping. To do this, insert a 1/4-inch ( 3 mm ) wide electrically isolated tool ( preferably plastic ) in the small opening on the side of the contactor assembly to lock it closed. See Figure 19.
Maintenance 57 Procedure 2 – Replacing the NT6C14PG meter display card ( continued ) Step 14 15 Action If the reading on the meter display of the control and distribution panel is off by more than 1% of what it should be, slowly rotate potentiometer R30 (located on the right side of the meter display card) clockwise or counterclockwise until the reading is within 1% of what it should be.
Maintenance Procedure 3 – Installing an MPR15, MPR25 or Helios Rectifier 25/48 ( continued ) Step 4 Action Ensure that the AC and DC circuit breakers on the front panel of the rectifier are in the OFF position. 5 Slide the rectifier into position, making sure that it is fully inserted. 6 Rotate the rectifier retaining bar up and tighten the captive screws to secure the rectifiers into position. 7 Test the new rectifier as described in the appropriate user manual ( see the list in Appendix D ).
Maintenance 59 Replacing a rectifier Replace a rectifier as described in Procedure 5. Procedure 5 – Replacing a rectifier Step 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Action Notify the alarm centre of the possibility of incoming alarms during the execution of this procedure. Ensure that the AC and DC circuit breakers on the rectifier being replaced are in the OFF position.
Maintenance Adding a power shelf Refer to the applicable rectifier user manual listed in Appendix D for the installation and the AC cabling procedures for your specific model of rectifier shelf. Connect the new shelf to the NT6C28C control and distribution panel as described in the following procedure.
Maintenance 61 WARNING This procedure implies that all or part of the batteries will be momentarily taken out of service This work should be completed during reduced traffic hours or with a diesel generator backup IS available to ensure no loss of service during a possible AC outage. If more than one string is to be replaced, replace only one string at a time and do not disconnect the next string before the previous one has been reconnected.
Maintenance Figure 22 – Battery connections inside the control and distribution panel Preferred locations for the battery cables (see note) Partial view inside the MFA150 control and distribution panel CHG BAT busbar This location is normally reserved for the BRR cable connection Shunt CHG/DISCH GRD busbar DISCH BAT busbar LVD contactor (if provided) Note: Connection positions are optimal if maximum 1/0 AWG cable is used.
Maintenance 63 Procedure 8 – Adding a distribution circuit breaker ( continued ) Step Action 4 Position the “L” shaped Glastic separator for the new circuit breaker as shown in Figure 23. 5 Align the new circuit breaker with the appropriate position and insert the upper stud of the circuit breaker into the hole in the DISCH BAT busbar. 6 Install the “C” alarm wire as shown in Figure 23.
Maintenance Figure 23 – Cross-section of an installed circuit breaker Main discharge busbar (DISCH BAT) Push-on alarm leads (see note) Glastic separator C NO Load NC Isolated support Note: The position of the “C” (common) “NO” (normally open) and “NC” (normally closed) alarm pins at the rear of circuit breakers will vary upon the manufacturer of the circuit breakers. However, the “C” pin should always be connected to the main discharge bar of the power plant.
Maintenance 65 Procedure 9 – Replacing a distribution circuit breaker Step 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Action Notify the alarm center of possible incoming alarms during this procedure. Open the front door and remove the top panel of the control and distribution panel. Operate the circuit breaker to be replaced to the “OFF” position (down). Disconnect the “NC” or “NO” alarm wire from the circuit breaker to be replaced.
Maintenance Replace the LVD contactor as described in the following procedure. Refer to Figures 24 and 25. Procedure 10 – Replacing the LVD contactor Step 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Action Notify the Alarm Center of the possibility of incoming alarms during the execution of this procedure. Open the front door and remove the top panel of the control and distribution panel.
Maintenance 67 Figure 24 – Jumper cable installation Temporary jumper cable to bypass the LVD contactor : use spare holes available in busbars to connect the cable with lugs.
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Appendix A : Associated schematics Drawing number Description IS6C28CA Interconnect Schematic Emerson Energy Systems MFA150 Power System NT6C28C User Manual
PART OF IS1 70 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
PART OF IS1 Appendix A: Associated schematics 71 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
IS3 Appendix A: Associated schematics 73 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
IS4 74 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
PART OF IS5 Appendix A: Associated schematics 75 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
PART OF IS5 76 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
Emerson Energy Systems REAR VIEW IS6 Appendix A: Associated schematics 77 MFA150 Power SystemNT6C28C User Manual
IS7 78 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
Appendix A: Associated schematics 79 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
IS9 80 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
PART OF IS10 Appendix A: Associated schematics 81 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
PART OF IS10 82 Appendix A : Associated schematics UM6C28C P0728920 Standard 11.
PART OF IS1 Appendix A: Associated schematics 83 Emerson Energy Systems MFA150 Power SystemNT6C28C User Manual
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Appendix B : Replacement parts Order the following replacement parts for the NT6C28C(x) MFA150 Power System.
Appendix B : Replacement parts For the RPM1000C: • Memory back-up battery (Sanyo No. CR2430) : • MSL2A fuse : • 1-1/3 A QFF1A fuses as required : A0603214 A0285632 A0614339 Note 1: Circuit breakers rated 80 A or less may be installed side by side. Circuit breakers over 80 A may only be installed next to circuit breakers rated 65 A or less. Note 2: Circuit breakers are ordered separately. Each circuit breaker is shipped with mounting hardware for mounting into the panel.
Appendix B : Replacement parts 87 Table 32 – Mid trip circuit breakers e/w circuit breaker guard CPC number P0743225 P0743226 P0743227 P0743228 P0743229 P0743230 P0743231 P0743465 P0743232 P0743233 P0743234 P0743235 P0878236 P0878237 P0878238 P0878239 P0878240 Note: Description 1A circuit breaker, 53 delay curve 2A circuit breaker, 53 delay curve 3A circuit breaker, 53 delay curve 5A circuit breaker, 53 delay curve 10A circuit breaker, 53 delay curve 15A circuit breaker, 53 delay curve 20A circuit breake
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Appendix C : Technical service assistance For technical assistance, 24-hours a day / 7 days a week, dial one of the following toll-free numbers. This service complements the services offered by field support organizations such as, the Emergency Technical Assistance Service (ETAS), and the Installation Technical Assistance Service (ITAS). Local toll-free prefixes The following prefixes give access to toll-free numbers in various countries.
Appendix C : Technical service assistance Toll-free technical assistance numbers United States: 1-800-992-8417 In Europe: Austria Belgium Denmark Finland France Germany Ireland Italy Netherlands Norway Sweden Switzerland United Kingdom 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 800-213-49156 *1 In the Caribbean and Latin America (CALA): Bahamas 1-800-389-0081 Barbados 1-800-5
Appendix D : Reference documents Manual number Description UM6C18HB/HC TCM/48 temperature compensation module Voltage_level Voltage level limits for Power Plants, Rectifiers and Controllers UM7C19A RPM1000C intelligent controller/monitor unit IM6C28C MFA150 Modular Front Access power system Installation manual UM5C07 Helios Rectifier 50/48 UM5C06D Helios Rectifier 25/48 Emerson Energy Systems MFA150 Power System NT6C28C User Manual
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Abbreviations and acronyms A ampere AC or ac alternating current AD assembly drawing ADJ adjust ALM alarm AMPS amperes AUD audible AWG American wire gauging BAT battery BAT RTN battery return BD Battery disconnect BMU battery management unit BOD battery on discharge BODA battery on discharge alarm BPG building principal ground BR battery return BRKR breaker BYP bypass C Celsius CAL calibrate CH channel Emerson Energy Systems MFA150 Power System NT6C28C User M
Abbreviations and acronyms CHG charge COM common CTRL control DC or dc direct current DISCH discharge EMI electromagnetic interference EQL equalize EQL STAT equalize status ESD electrostatic discharge F Fahrenheit F fuse FA fuse alarm FG frame ground FGB floor ground bar FS forced sharing ft foot ft-lb foot-pound GRD or GRND ground HV high voltage HVA high voltage alarm HVSD high voltage shutdown HVSDA high voltage shutdown alarm HVSDR high voltage shutdown r
Abbreviations and acronyms 95 L line (AC) lb pound LED light emitting diode LV low voltage LVA low voltage alarm LVD low voltage disconnect LVDA low voltage disconnect alarm LVDR low voltage reconnect m meter MAJ major MFA modular front access MGB main ground bar MIN minor MNL manual MOP method of procedure MPR modular power rectifier MPS modular power shelf mV millivolt NC normally closed N-m Newton-meter NO normally open NORM normal PLT plant psi pound per s
Abbreviations and acronyms RFA rectifier failure alarm RPM remote power monitor RST reset SH shunt SLS slope load sharing SPG single point ground (connection) SW switch TB terminal block TCM temperature compensation module TP test point TR temporary release UL Underwriters Laboratories V volt VRLA valve regulated lead acid (batteries) WD wiring diagram UM6C28C P0728920 Standard 11.
MFA150 Modular Front Access Power SystemNT6C28C User Manual Emerson Energy Systems 2280 Alfred-Nobel Blvd St-Laurent ( Quebec ) Canada H4S 2A4 Manual Number : UM6C28C ( 167-9021-102 ) Manual Issue : 11.00 Manual Status : Standard Release Date : October 2001 P0728920 Copyright 2001 Astec International Ltd All Rights Reserved Published in Canada The information contained in this manual is the property of Astec International Ltd and is subject to change without notice.
