**One ﹑ Intelligent voltage monitors the basic function of appearance: **

(1) The appearance of this intelligence voltage that monitor is put in transformer substation of mountain of tree of bureau of industry of cable of Hunan Province Changsha, the PT voltage ﹑ of two 220Kv that can realize pair of arboreous mountain transformer substation two The PT voltage of 4 10Kv and two 220V volts d.c. mix the PT voltage ﹑ of 110Kv two 380V volts d.c. undertakes real time is monitored; The appearance that monitor uses virtual value sampling to the voltage that is monitored, its sampling is periodic every second, make pretreatment memory. One minute regards a statistic as unit, take the average that the voltage pretreatment inside a minute is worth, be monitored as the delegate the system is real time run voltage actually;

(2) Have the function that inquires by time;

(3) The graph displays a function;

(4) Have the function that presses month and day statistic, the percent of pass of voltage of assessment time ﹑ that can show or prints voltage and voltage of ﹑ of time of eligible accumulative total exceed upper limit rate and voltage of ﹑ of time of corresponding accumulative total to transcend floor level rate and time of corresponding accumulative total, can store at least the data of 3 months;

(5) Have day of integral point to print, maximum and the least value reach corresponding occurrence time to print;

(6)

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