Galaxy Power System. GPS2436 is available with Galaxy Millennium or Galaxy Pulsar Plus controllers. Both controllers provide many advanced functions and features, including;...
A basic block diagram of the Galaxy Power System 2436 is shown in Figure 2-1. It illustrates the arrangement and interconnection of the system components from the ac input to the dc output. Figure 2-1 Block Diagram of the GPS2436 System The power system accepts alternating current from the commercial utility or a standby ac power source and rectifies it to produce dc power for the using equipment.
Architecture Configurations The GPS2436 is a 7-foot cabinet that can provide up to 3600 amps of DC power in a single cabinet. Figures 2-1 and 2-2 show diagrams of single cabinets. Each cabinet contains ac distribution, dc distribution panels, a battery connection panel, rectifiers, termination points for load circuits, and a system controller.
3 Galaxy Millennium II Controller Overview Introduction The GPS2436 comes equipped with the Galaxy Millennium II Controller. This section describes the controller operation and general information about the features of the front panel keys, LEDs, and display. The Galaxy Millennium II Controller provides advanced local and remote monitoring and data acquisition features.
Overview AC Service The ac input panel provides the facility to terminate 3-phase ac service to the GPS2436 system or to distribute individual 1-phase ac supplies to each of the system rectifier positions. Depending upon the option ordered, the panel will connect 3-wire (three phases), 4-wire (three phases + neutral), or individual 2-wire (single phase, either 2 hot leads or 1 hot lead and neutral) input ac service.
Overview Function Batteries are connected to the GPS2436 cabinets on battery connection panels located in the cabinet directly below or behind the ac input panel. All panels include the battery shunt and an alarm card that communicates with the controller to provide battery current and status information. The panel includes a low voltage battery disconnect/reconnect (LVBD/R) contactor.
8 External Return Bars Overview Modular external return bus bar kits are available for the GPS2436 system. These kits are alternatives to the standard internal return buses. These kits allow for modular growth of the bars from bay to bay and offer additional cable landings.
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A battery potential input is required, which must use an external 1K ohm, 2W current limiting resistor at the source if not using standard ABB Power LVD circuit boards or controller. This circuit is used to inform Galaxy that the monitoring circuit of a Low Voltage Disconnect device has failed. In standard Galaxy Power Systems, the Bay Interface board monitors these alarms and informs the Controller through the serial interface connection.
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A ground referenced RS-232 local port is provided at the front of the display to allow easy connection to a personal computer or terminal using ANSI T1.317 object oriented command language. ABB Power’s EasyView is also available to provide a user friendly system interface locally or remotely. See figure 4-6.
Rectifier Rectifier Specifications850022020 GPS2436 Prod Man r01.docx Electrical Input Voltage Range 175-275Vac, 2-wire, single phase (150 Vac - 300 Vac with reduced performance) Frequency Range 45 - 66 Hz Power Factor > 0.98 at > 50% rated output AC Surge Protection: It is important that ac surges reaching rectifiers do not exceed the capacity of the rectifier internal surge protection.
• This product operates equally well if installed as part of the Isolated Ground Plane (Isolated Bonding Network) or the Integrated Ground Plane (Mesh- Bonding Network, aka, Common Bonding Network). ABB recognizes there are different grounding techniques that are equally successful. Adhere to a commonly accepted and consistent grounding approach to ensure personnel safety, network protection, and proper equipment operation.
Coordinate all troubleshooting activities with other personnel that may be working on the system. Table 1: Warnings Tools The following tools are necessary in order to troubleshoot the GPS2436: • Calibrated digital voltmeter (DVM) (0.05 accuracy on dc scale) • ESD wrist strap...