Alpha CPH-144 User Manual
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Alpha CPH-144 User Manual

Central power hub
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CPH-144
Central Power Hub
User Guide ID: 0570257-J0
Effective: 03/2022
Read this manual carefully.
Learn how to protect your equipment from damage and fully understand its functions.

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Summary of Contents for Alpha CPH-144

  • Page 1 CPH-144 Central Power Hub User Guide ID: 0570257-J0 Effective: 03/2022 Read this manual carefully. Learn how to protect your equipment from damage and fully understand its functions.
  • Page 3 CPH-144 Central Power Hub NOTICE For the latest version of software, firmware, and product documentation, visit the Alpha® website, www.alpha.com or www.alpha.ca. NOTICE Photographs contained in this document are for illustrative purposes only. These photographs may not match your installation.

  • Page 4: Table Of Contents

    User Guide CPH-144 Central Power Hub Contents 1. Safety......................... 5 1.1 Safety symbols ..................................5 1.2 General warning and cautions ............................5 1.3 Mechanical safety ................................6 1.4 Electrical safety .................................6 2. Overview ........................7 3. Specifications ......................8 4. Features ........................9 4.1 Cordex®...
  • Page 5 CPH-144 Central Power Hub User Guide 7.3 Grounding system location .............................21 7.4 Bonding OSP cable shield to the master ground bar ......................22 7.5 AC input wiring to the loadcenter ...........................24 7.6 Wiring the HV DC output ..............................24 8. System startup ......................28 8.1 Software ..................................29...
  • Page 6 Figure 9: Ground mounting detail ............................17 Figure 10: CPH-144 combination meter and loadcenter grounding diagram ................18 Figure 11: CPH-144 with remote disconnect (<4 feet) grounding diagram ................19 Figure 12: CPH-144 with remote disconnect (>4 feet) grounding diagram ................20 Figure 13: Enclosure MGB with site ground ...........................21 Figure 14: Internal AC loadcenter utility connection ......................24...

  • Page 7: Safety

    Keep it in a safe place. Review the drawings and illustrations contained in this document before proceeding. If there are any questions regarding the safe installation or operation of this product, contact Alpha Technologies Ltd. or the nearest Alpha® representative. 1.1 Safety symbols To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following symbols have been placed throughout this document.

  • Page 8: Mechanical Safety

    User Guide CPH-144 Central Power Hub 1.3 Mechanical safety • Keep hands and tools clear of fans. Fans are thermostatically controlled and switch on automatically. • Power supplies can reach extreme temperatures under load. • Use caution around sheet metal components and sharp edges.

  • Page 9: Overview

    SE41-2722 enclosure as the CPH-144. The CPH-144 is a Type 3R outdoor central power hub enclosure providing up to 144 ±190 Vdc line powering channels from an AC utility power source. The CPH-144 utilizes remote line powering equipment as a method of energizing remote devices using power delivered from a central source over copper cable.

  • Page 10: Specifications

    User Guide CPH-144 Central Power Hub 3. Specifications Electrical Input voltage Nominal: 187 to 277 Vac Operating: 187 to 310 Vac Extended: 90 to 187 Vac (de-rated power) 187 to 277 Vac (single phase) Input frequency 45 to 66 Hz Power factor >98% (50 to 100% load)

  • Page 11: Features

    CPH-144 Central Power Hub User Guide 4. Features 4.1 Cordex® CXPS-E3 400A power system For more information, refer to the CXPS-E3 400A power system documentation. The Cordex® CXPS-E3 400A power system uses high-density rectifier shelves, a front access distribution panel, and the advanced Cordex®...

  • Page 12: Cordex® Hp Lps36 Up-Converter

    User Guide CPH-144 Central Power Hub 4.2 Cordex® HP LPS36 up-converter For more information, refer to the Cordex® HP LPS36 documentation. The Cordex® HP LPS36 is a modular DC to DC up-converter system designed for distributed power applications using ±190 Vdc over existing or new copper cabling.

  • Page 13: Cordex® Cxc Hp System Controller

    CPH-144 Central Power Hub User Guide 4.3 Cordex® CXC HP system controller For more information, refer to the Cordex® CXC HP controller documentation. The Cordex® CXC HP system controller provides a high performance control and monitoring option for all Cordex®...

  • Page 14: High Voltage 50-Pair Protector Panels

    Figure 5: High voltage 50-pair protector panels 4.5 External AC loadcenter The CPH-144 includes a 208/240 Vac loadcenter, with a 100 amp main breaker, that is pre-wired for the DC power system and other AC electrical connections. Refer to the 0570257-05 drawing at the end of this document for the loadcenter wiring schematic.

  • Page 15: Vdc Heat Exchanger

    CPH-144 Central Power Hub User Guide 4.6 48 Vdc heat exchanger The heat exchanger consists of a core, internal loop recirculation fans, and external loop fans for circulating outside ambient air across the core. The heat exchanger features adjustable thermostat control and a heat exchanger fan fail alarm output that is wired to the enclosure alarm block.

  • Page 16: Inspection

    Review the packing slip and bill of materials to determine the part number of the “configuration kits” included with your system. Review the bill of materials to verify that all the small parts are included. Contact Alpha Technologies Ltd. if you have any questions before you proceed.

  • Page 17: Installation

    CPH-144 Central Power Hub User Guide 6. Installation Only qualified personnel should install and connect the power components within the Alpha® power system. For the battery installation, refer primarily to the manufacturer’s documentation. 6.1 Safety precautions Refer to the "Safety"...

  • Page 18: Mounting The Enclosure

    If the rubber mat is “ribbed” the ribs should be against the concrete slab. 6.5 Mounting the enclosure The CPH-144 is designed for pole or ground mounting. Concrete pad installation requiring seismic compliance requires approval by the appropriate engineering discipline, for example, civil or structural.

  • Page 19: Figure 9: Ground Mounting Detail

    CPH-144 Central Power Hub User Guide 6.5.2 Ground mounting 4 × 0.625 MOUNTING HOLES 4 × 2" TRADE SIZE KNOCKOUT Figure 9: Ground mounting detail 0570257-J0 Rev D...

  • Page 20: Wiring

    User Guide CPH-144 Central Power Hub 7. Wiring Only qualified personnel should install and connect the power components within the Alpha® power system. WARNING • Only qualified personnel should install and connect the power components within the Alpha® system. •...

  • Page 21: Figure 11: Cph-144 With Remote Disconnect (<4 Feet) Grounding Diagram

    3. Connect the other end of the conductor to the GEC via an irreversible compression connector or exothermic weld. 7.1.2 Configuration 2: Grounding the CPH-144 with remote AC service disconnect located within four feet of the cabinet Install a continuous length of 35 mm² (2 AWG) tinned solid copper conductor originating at the ACEG bus in the remote service disconnect enclosure and have it terminated at the MGB.

  • Page 22: Internal Wiring Configurations Of Enclosure Master Ground Bar

    GEC to the driven ground rod of the CPH-144 system. Avoid tight radius bends. 3. Connect the GEC to the CPH-144 driven ground rod nearest to the Enclosure MGB and have it terminated to the Enclosure MGB using an appropriate two-hole compression lug.

  • Page 23: Grounding System Location

    The ground system must be bonded to the enclosure to ensure a “common” or “single-point” ground. Locate the CPH-144 enclosure master ground bar at the left front of the enclosure. Chassis ground is connected to the enclosure frame and is terminated at the master ground bar within the enclosure.

  • Page 24: Bonding Osp Cable Shield To The Master Ground Bar

    User Guide CPH-144 Central Power Hub 7 .4 Bonding OSP cable shield to the master ground bar The OSP cable shield must be bonded to the Master Ground Bar (MGB). The OSP cable is the 50/100-pair twisted pair cable that carries the line power circuits out to the remote nodes. Shield bonding must take place at the cabinet and at all cable splice locations including the splice at the down converter location.
  • Page 25 CPH-144 Central Power Hub User Guide 4. If using an exposed strand ground wire, prepare the ground wire using 16 mm² (6 AWG) stranded conductor. Place the exposed strand onto the lip of the connector base. Ensure the wire is long enough to reach the MGB without straining the cable or making any sharp bends.

  • Page 26: Ac Input Wiring To The Loadcenter

    User Guide CPH-144 Central Power Hub 7 .5 AC input wiring to the loadcenter Use suitable knockout to route the AC cable into the AC loadcenter. Use appropriate conduit and fittings. Make the connections in the following table to the AC loadcenter.

  • Page 27: Figure 15: 3M Company Ms

    CPH-144 Central Power Hub User Guide Table A — 3M Company MS² GBM connector circuit designations Tip wire color Circuit 3M MS Ring wire color White/Blue Blue/White White/Orange Orange/White White/Green Green/White White/Brown Brown/White White/Gray Gray/White Red/Blue Blue/Red Red/Orange Orange/Red Red/Green...

  • Page 28: Figure 16: 50-Pair Protector Panel

    User Guide CPH-144 Central Power Hub Populate the 50 pair protector panel with the quantity of five-pin gas tube modules corresponding to the number of loaded circuits. Install the gas tube modules in the protector panel numbered locations in accordance with shelf slots used (refer to the following table).

  • Page 29: Figure 17: Enclosure Alarm Block Wiring

    CPH-144 Central Power Hub User Guide 7.6.1 Power enclosure alarm wiring block The alarm wiring block, located on the right side wall in the enclosure power compartment, uses Phoenix style blocks. Refer to the schematic drawing, 0570257-05 at the end of this document for the alarm schedule.

  • Page 30: System Startup

    User Guide CPH-144 Central Power Hub 8. System startup Ensure all AC breakers in the AC loadcenter and all DC breakers in the Cordex® CXPS-E3 power system are switched OFF . 2. Install one rectifier module into the rectifier slot 1 and one Cordex® HP LPS36 converter module into LPS36 shelf slot 1.

  • Page 31: Software

    CPH-144 Central Power Hub User Guide 8.1 Software Refer to Cordex® CXC HP controller software manual to sign in to the controller. 2. Use the controller to test functionality of various module alarms and controls. 0570257-J0 Rev D...

  • Page 32: Maintenance

    CPH-144 Central Power Hub 9. Maintenance Although very little maintenance is required with Alpha® systems, routine checks and adjustments are recommended to ensure optimum system performance. Qualified service personnel should do the repairs. The following table lists a few maintenance procedures for this system. These procedures should be performed at least once a year.

  • Page 33: Heat Exchanger Fan Test Procedure

    CPH-144 Central Power Hub User Guide 9.1 Heat exchanger fan test procedure There are six heat exchanger fans. Three inner loop fans are located on the inside of the door and three outer loop fans on the outside of the door. Perform the following procedure to test the fans.

  • Page 34: Heat Exchanger Fan Replacement Procedure

    User Guide CPH-144 Central Power Hub 9.2 Heat exchanger fan replacement procedure NOTICE This procedure can be performed on a live system. A Fan Fail alarm indicates failure of either an inner loop or outer loop fan. Perform the following procedures to replace a failed fan.
  • Page 35 CPH-144 Central Power Hub User Guide 9.2.2 Removing outer loop fan Remove the four #10-32 Phillips head screws and rubber washers securing the outer heat exchanger shroud to the door. #10-32 Phillips head screws (four places) 2. Remove the outer shroud to expose the heat exchanger core and outer loop fan mounting assembly below the core.
  • Page 36 User Guide CPH-144 Central Power Hub 5. Pull the assembly off the door studs to expose the fans and fan mounting hardware. 6. Unplug the failed fan connector on the inside of the door. Remove the failed fan from the mounting bracket by removing the four #8-32 fan retaining screws and nuts.

  • Page 37: Acronyms And Definitions

    CPH-144 Central Power Hub User Guide 10. Acronyms and definitions Alternating current ANSI® American National Standards Institute American Wire Gauge British thermal unit Controller area network Canadian Electrical Code Central power hub CSA® Canadian Standards Association Cordex® series; CXC for Cordex® System Controller...
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  • Page 50 Alpha Technologies Ltd. | 7700 Riverfront Gate, Burnaby, BC V5J 5M4 Canada Toll Free North America: +1 800 667 8743 | Outside North America +1 604 436 5547 | Technical Support +1 888 462 7487 For more information visit our website at: www.alpha.com...

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