DC electrical power supply system
US5712779A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Aug 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A DC electrical power supply system for converting AC power to DC power for various telecommunications equipment loads includes plural rectifiers mounted on one or more shelves and adapted to be inserted on and removed from said shelves, at will. One or more voltage converters may be inserted and removed from said shelves at will and include adapter plates for supporting the converters in place of a rectifier unit. The power supply system includes a frame supporting the shelves and a cabinet which includes busworks for connecting the rectifiers to circuit breaker tiers and to a battery pack. Low voltage disconnect devices may be interposed in the buswork at selected locations to provide operation in a battery protection mode, load protection mode and load shedding mode. The circuit breaker tiers, buswork, shelving, rectifier units and converters are all accessible for connection and disconnection from the front side of the power supply system. The power supply system includes digital microprocessor controls for controlling and monitoring system voltage, individual rectifier voltages, system and individual rectifier current output, status of each rectifier, converter circuit breaker…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.