How many types of electricity meters are there? Which type of electricity meter should I choose for the factory?
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Classification of Electric Meters
Classified by functional purpose:
Industrial and civilian electricity meters
Electronic standard table
Maximum demand measurement meter
Single rate and multi rate electricity meters
Prepaid electricity meter
Remote electric meter
Classified by structure and working principle:
Inductive (mechanical) electric meter
Static (electronic) electric meter
Integrated electromechanical (hybrid) electric meter
Classified by the nature of the connected power supply:
Communication Form
DC meter
Classified by measurement accuracy level:
0.2S level electric meter
0.5S level electric meter
Level 1 electric meter
Level 2 electric meter (the smaller the precision level number, the greater the measurement accuracy)
Classified by installation and wiring methods:
Direct access electricity meter
Indirect access type electric meter
Classified by measuring electrical equipment:
Single-phase electric meter
Three phase three wire electric meter
Three phase four wire electric meter
Classified by the circuit used:
DC energy meter
AC energy meter (also divided into single-phase energy meter, three-phase three wire energy meter, and three-phase four wire energy meter)
Classified by structure:
Integrated energy meter
Split type electric energy meter
Classified by purpose:
Active energy meter
Reactive energy meter
Maximum demand scale
Standard electric energy meter
Multi rate time-sharing electricity meter
Prepaid energy meter
Energy consumption meter
Multi function watt hour meter
Classified by accuracy level:
Ordinary installation type electric energy meter (0.2, 0.5, 1.0, 2.0, 3.0 levels)
Portable precision level electric energy meter (0.01, 0.02, 0.05, 0.1, 0.2 levels)
Selection of Factory Electricity Meters
For the selection of electricity meters for factories, it is necessary to comprehensively consider various factors such as the factory's electricity functional requirements, actual electricity consumption size, and requirements for electricity measurement accuracy. Generally speaking, factories consume a relatively large amount of electricity and have multiple electrical devices, which require high accuracy in electricity measurement. Therefore, it is necessary to choose high-precision and multifunctional electricity meters.
Specifically, factories typically choose the following types of electricity meters:
High precision level electricity meter: such as 0.5S or 0.2S level electricity meter, to ensure the accuracy of electricity measurement.
Three phase electricity meter: Due to the fact that most factory electrical equipment is three-phase, choosing a three-phase electricity meter is more suitable. Three phase electric meters have a wide range, high measurement accuracy, and reliable carrying capacity, which can fully adapt to various industrial production environments.
Multi functional electricity meter: Multi functional electricity meters can integrate multiple metering functions, such as voltage, current, power, power factor, electrical energy, etc., while also supporting remote communication and remote control functions. This is very useful for factories, as it can monitor the electricity consumption of various equipment and time periods in real-time, adjust the production electricity allocation reasonably, and reduce the cost of electricity expenses.
Indirect access meter: For large factories, due to high electricity consumption, it may be necessary to add transformers for indirect access. This type of meter can improve measurement efficiency while also protecting the meter from burning out.
In summary, factories should choose electricity meters based on their own electricity needs and actual situations to ensure safe, accurate, and reliable electricity usage.
