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Astec Advanced Power Systems
UM5C06B / C ( 169-2071-500 )
MPR25 / MPR15 Series, Single Phase −48V,
25A Switch Mode Rectifier
NT5C06B/C
Installation and User Manual
P0711722 Standard 10.00 May 2001
Astec Advanced Power Systems
A part of Emerson Network Power
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Astec Advanced Power Systems MPR25 / MPR15 Series, Single Phase −48V, 25A Switch Mode Rectifier NT5C06B/C Installation and User Manual Manual Number : UM5C06B / C ( 169-2071-500 ) Manual Status : Standard Manual Release : 10.0 Release Dateb : May 2001 P0711722 Copyright 2001 Astec Advanced Power Systems Ltd All Rights Reserved Published in Canada The information contained in this manual is the property of Astec Advanced Power Systems and is subject to change wit
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5 Publication history May 2001 Standard Issue 10.00. Manual modified to reflect the Emerson identity. ( EC 102-26701 ) September 1999 Standard release 9.0. Document modified to reflect new Astec address and minor corrections throughout. (ECN 102-17331) May 1999 Standard release 8.0. Document modified to reflect Astec identity. (ECN 102-14607) January 1998 Standard release 7.0. This issue includes clarification for Rectifier Replacement/Add-On Procedure, supplement P0850648 (New f
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6 Publicaton history February 15, 1991 Standard release 2.0 October 1, 1990 Standard release 1.0 UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.00 May 2001
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7 Contents About this manual.....................................................................................................13 Purpose of this manual ................................................................................................13 Safety precautions ......................................................................................................13 How this manual is organized ......................................................................................13
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8 Contents Inrush current limiting fuse (F1) .....................................................................23 Test points (V+, V-) .......................................................................................24 Current meter ................................................................................................24 Fan filter option .............................................................................................24 Rear interface........................
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Contents 9 LVD installation in the shelf ...........................................................................59 Start-up procedure.......................................................................................................60 Factory set voltage limits...............................................................................60 Rectifier power-up .........................................................................................61 HVSD adjustment................
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10 Contents Power and signal lead termination ...............................................................102 Factory set voltage limits.............................................................................102 FTOP application .......................................................................................................102 Alarms.........................................................................................................103 Power and signal lead termination
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Contents 11 Figure 21 - Rectifier AC and DC power (internal) cabling harness.................................58 Figure 22 - Embedded shelf - LVD connections - rear access ........................................59 Figure 23 - Embedded shelf - LVD connections - side access ........................................60 Figure 24 - Embedded shelf quick disconnect for sense (sectional view).......................62 Figure 25 - Low voltage disconnect connections...................................
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12 Contents List of Procedures Procedure 1 - Power shelf installation..........................................................................41 Procedure 2 - Common bussed AC connection - side access.........................................47 Procedure 3 - Individual AC connection - side access old vintage .................................49 Procedure 4 - Individual AC connection-side access .....................................................49 Procedure 5 - Individual AC connection
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13 About this manual Purpose of this manual This manual provides all the necessary information for installing, operating and maintaining an MPR15 (-48 V/15 A) and MPR25 (-48 V, 25 A) series (NT5C06B/C) Switch Mode Rectifier, 19-inch and 23-inch Power Shelf NT5C10 for embedded and system applications, as well as the NT5C13F( ) Low Voltage Disconnect series. Safety precautions This equipment meets CSA 22.0 - 0M1982, CSA C22.2 - 107-1957 and UL1950. High voltages are present inside the
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14 About this manual This page is left blank intentionally. UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.00 May 2001
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15 Introduction Applications The MPR15 / MPR25 rectifiers are designed to operate continuously in a battery-equipped or batteryless –48 V power system, either embedded as part of a small system, or as part of a power plant in a system application. Several models are available for operation in a controlled environment. An extended temperature version is capable of withstanding temperatures ranging from -40°C to +65°C while standard models operate from 0° to +65°C ambient. The MPR15EX mo
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16 Specifications Rectifier models Four models are listed in Table 1. Table 1 - NT5C06B/C models MODEL TYPE NT(CODE) MPR25E 25 AMP - Enhanced Basic NT5C06CA (Brown) NT5C06CC (Grey) MPR15E 15 AMP - Enhanced Basic 110 V AC NT5C06CB (Brown) NT5C06CD (Grey) MPR25EX Enhanced Extended Temperature NT5C06BB (Brown) NT5C06BC (Grey) MPR15EX 15 AMP - Enhanced Extended NT5C06CE Temperature, 110 V AC Table 2 - Rectifier feature summary MPR15E & MPR25E MPR15EX & MPR25EX ENH. UNIT FEATURE EN
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17 Specifications Mechanical The MPR25 or MPR15 rectifiers have the following dimensions: • Height: 168 mm (6.60 inches) • Depth: 260 mm (10.25 inches) • Width: 149 mm (5.85 inches) Electrical Rectifier voltage and current The input current requirements of the MPR15 / MPR25 rectifier and the NT5C10 power shelves are listed in Table 3: Table 3 - MPR15/MPR25 input current requirements Input voltage: 120 V AC 208 V AC 240 V AC frequency 47-63 Hz 47-63 Hz 47-63 Hz range 96-132 V AC 17
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18 Specifications Output voltage Floating: -46 V DC to -57 V DC Equalizing: 0 to -2.5 V DC above float Output regulation: At the point of regulation: within +0.5% of the selected value for all specified input and output variations and within +1% for any combination of specified input, output and environmental conditions. Output protection: 30 A DC breaker Output current: at 96-132 V input * - 15 A for MPR15E/EX at 176- 264 V input – 25 A for MPR25E/EX Current limit: 17.5 to 20 A m
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Specifications 19 Acoustical noise The rectifier does not produce sound levels above 60 dB with "A" weighting measured 1.5 m (5 ft.) above the floor and 0.5 m (2 ft.) from the rectifier, while operating at no load, partial load, or full load. Efficiency and power factor Efficiency is 88% at nominal input voltage of 208 V and maximum output load of 25 A at 54 V DC. Power factor is 0.60 at a nominal voltage of 208 V AC and a maximum load of 25 A with 0.5 ohm line impedance. Reliability
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20 Specifications Humidity: 0 to 95% (non-condensing) Altitude: Sea level to 2100 m (7000 ft.) Transportation The following environmental limits must be observed during transportation: Temperature: -50° C to 75° C (-58°F to 167°F) Humidity: Up to 95% Relative Humidity at 25 mm (1 in.) of water vapor pressure. Vibration: 5.5 to 500 Hz. 3.5 g maximum (sinusoidal) 762 mm (30 in.) maximum drop (packaged) Pressure: 87.5 mm Hg at 15,200 m (50,000 ft.) Temperature shock: -50°C to 27°C (-
