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dynamic system monitor

dynamic system monitor

dynamic system monitor

(OP)
In most dynamic system monitor(DSM) equipment, there are the channels for DC voltages and DC currents. What are the DC measurements actually used for? Sorry, i must admit I have no knowledge at all in this area. Hope some of you can kindly help me.

What is the most common number of channels used in a substation? Is it 32 channels? Let's say we have 3-channel units connected to the 3-phase CT and VT signals. So, there will be 10 channels for AC/DC voltage and currents. So how many channels we actually need for AC and DC measurements respectively? What about the remaining two channels (32 - 30 = 2), what is that for? Also, in some monitoring equipment, I noticed that they label 2*32 channels? What does that mean? Sorry, i'm a recent graduate and have not seen a system monitoring equipment before.  Your advice is greatly appreciated.  

RE: dynamic system monitor

Battery voltage could be a good thing to monitor.

2*32=64, in two groups of 32.

Substations don't come in standard sizes, 32 may be way more than enough, 64 may be way too few.

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