![]() ![]() ![]() This will take account of the required battery recharge current and level of rectifier redundancy.Īny power system that reaches its threshold can then be tagged for further investigation and a possible rectifier expansion. An analysis of each power system will allow a maximum acceptable percentage output power to be set. An Intergy SM50 supervisory module has the ability to internally calculate percentage output power and display it on the front panel LCD or remotely through the PowerManagerII monitoring software.Īlternatively the figure can be calculated from the voltage and current figures collected in the data log. A percentage figure has the advantage that it takes account of the total number of rectifier modules in the system. This is a particularly important measurement at sites where the load on the DC plant is continually increasing. Recording the power demand on the rectifier modules in a system and calculating it as a percentage of their maximum power output, is an effective way to monitor that a DC power system is not overloaded. ![]() From that experience three key points have been identified that allow power system engineers to rapidly identify the 'fitness' of a DC power system. ![]() Invensys Energy Systems has experience of collecting and analysing data from Intergy DC power systems at 'live' telecommunication sites. However, once the data has been downloaded the problem then becomes how to analyse the information efficiently and provide meaningful results. Downloading can be either through a data link to a remote PC or directly by serial link to a local PC. The Intergy SM50 series supervisory module has a data log feature able to collect detailed performance data for later download. In today's dynamic telecoms environment the equipment loads on a DC power system and battery may be regularly increased through its life.įortunately, modern DC power systems, with digital control and monitoring systems, give power systems engineers an in-built tool to monitor changes in demand.ĭata logging provides the ability to collect system performance regularity for objective analysis. ![]()
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