Several meter reading methods and line loss analysis

First look at the composition of the meter reading: smart meter equipment + concentrator + set community prepaid remote meter reading system.

Meter reading method of the old traditional manual meter reading, not to mention the pre-infrared meter reader, modern remote meter reading are as follows

RS485, power carrier, micropower wireless, GPRS, NB-IOT, 3G, 4G, 5G, and so on, that is, generally speaking, the way of communication,

Line loss, in terms of points Management and technical levels

I. Management of line loss; 1. Meter reading is not the same time - line loss is high and low or negative value, 2. Theft, leakage of electricity, 3. Three electricity behavior - power electricity, human electricity, overbearing electricity. 4. Wrong copying, omission copying, estimate copying Causing problems with negative values, 5. Unknown losses .......

Second, technical line loss; 1. whether the metering device is reasonable and accurate, 2. whether the installation point of transformer capacity, power supply radius, and conductor cross-section are reasonable, 3. whether the three-phase load is seriously asymmetric, 4. the load rate problem, 5. whether the non-constant loss variable loss is reasonable, and 6. whether there is a near power supply and a loop power supply ...... .