Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.2096/CHE/2011 A
(19) INDIA
(22) Date of filing of Application :21/06/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : A MODULAR POWER SUPPLY FOR DISTRIBUTION AUTOMATION SYSTEM
(51) International classification :G05B
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)ABB TECHNOLOGY LTD
Address of Applicant :AFFOLTERNSTRASSE 44, CH-
8050 ZURICH Switzerland
(72)Name of Inventor :
1)HARDIK B PATEL
(57) Abstract :
The present invention relates to power supplies modules for distribution automation system and more particularly to provision of
power supply in remote input output devices such that more than one power supplies modules may be effectively connected
together. Power supply modules connected together in parallel, with common or independent input sources, share the load
proportionally (equally) by load share control. The parallel modular power supply system are coupled at input, output and for load
sharing control have interferences/cross talks amongst them, causing difficulty in achieving stability over the entire range of
operations specially with independent input sources having wide differences in the input voltage levels. The invention provides for
effective decoupling of power supply modules and improved stability by use of a filter amplifier component to reduce the effect of
noise in the power supply module in the secondary side within the power supply module. The power supply module for
distribution automation system also provides a means to indicate and communicate health status from each of the power supply
modules connected together. .
No. of Pages : 22 No. of Claims : 10
The Patent Office Journal 21/06/2013 14018