Monitoring the battery backup power supply system

The monitoring system allows monitoring of battery backup power at all remote sites. This is especially valuable for companies providing telecom services. Such companies often have to maintain a large number of objects, frequent visits whereto affects business margin.

The benefits of the monitoring system in the context of monitoring of the battery backup is that it provides the capability to do real-time monitoring of voltage of each battery at zero load, at the time of charging and under load. An additional factor that allows us to understand how good a battery withstands stress, is the availability of information about the strength of current flowing from the battery to the consumer. An example of such a graph of current is given below. The Y-axis is the power of current and X-axis shows the time frame. (Blue line is the average, red line is the maximum, green line is the minimum).

As we can see from the curve of maximum values (red),the maximum current that occurs when switching to backup power from batteries - 21 Amps. Based on what we see from the curve of average values (blue), we can conclude that during long operation of equipment from backup batteries, average values of the strength of current appear to be approximately 12 Amps.

[sensors_div]Such statistics, especially in the scope of a month, makes it possible to evaluate the necessary total battery capacity at the given facility.

For each battery it is shown how quickly it loses charge under load. This information can easily be obtained by comparing the corresponding time scales of graphs of current and voltage for the battery in for the same time period.

Based on the data presented in the chart above, we can conclude that even under short-term load (the conclusion regarding the duration of the load is made based of the relatively high value of the average power per hour at 15:00 - blue line), this battery loses almost half a Volt (from about 14.2 Volts - the average, down to 12.69 volts - minimum value). If in your setup there is a corresponding chart of current for the same period of time, it is easy to estimate the battery capacity, and how critical it is to replace it.

"Impulse 112" controller, in addition to the functionality of obtaining results of measurements from the sensors and transmitting of the values to the central dispatch control panel, provides the capability to configure up to 7 thresholds for each port. When crossing any threshold a priority packet with information regarding this event is sent to the central control panel . This functionality will help service personnel to understand when to stop waiting for the electricity to appear in the input mains and visit the site with a portable generator. This information appears both in the central panel of accidents along with displaying it on the object properties page.


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