Single phase local cost control smart meter

Time of use electricity metering for single-phase electricity users in newly built or renovated urban residential areas and rural areas, with prepayment function, is particularly suitable for installation sites in residential areas, government agencies, factories, mines, schools, etc. It can effectively solve the problem of difficult charging, guide users to optimize electricity consumption methods, and improve energy utilization efficiency. It is the preferred product for promoting demand side management and optimizing the allocation of power resources.

1. It has the function of measuring positive and negative active energy, can store its data, and can set the combination of active energy based on it.
2. A built-in hardware clock circuit with temperature compensation function should be used, with a built-in centennial calendar and automatic conversion function for clock, leap year, and leap month.
3. It has two sets of rate schedule, which can be automatically converted at the agreed time; Each set of rates should support at least 4 rates.
4. Cost control function: Implemented through solid-state media such as CPU cards.
5. Able to measure, record, and display operating parameters such as voltage, current (including zero line current), power, and power factor of the current energy meter.
6. The electricity meter can record the last 10 programming sessions, demand reset, timing, remote control opening, remote control closing, opening the meter cover, and resetting the energy meter.
7. It has the functions of timed freezing, instantaneous freezing, agreed freezing, and daily freezing.
8. When setting parameters, pre storing electricity fees, writing back information, and issuing remote control commands to an energy meter through solid-state or virtual media, strict password verification or ESAM module security authentication is used to ensure secure and reliable data transmission.
9. It has one modulated infrared communication interface and one completely isolated RS485 communication interface, which facilitates on-site maintenance and remote data collection.

1. Fully electronic design, built-in dedicated measuring chip, with high precision, sensitivity, logic anti submarine, high reliability, wide load and other characteristics.
2. According to user requirements, corresponding display modes such as digital tubes and LCD displays can be selected. Display comprehensive and clear data, record accurate and reliable data without loss.
3. Adopting optimized design, with low self power consumption, it can reduce power grid line loss and provide power supply efficiency when used on a large scale.
4. Adopting SMT technology, using internationally renowned brands and long-life components, the accuracy is not affected by frequency, temperature, voltage, and high-order harmonics. The installation position is arbitrary, and the whole machine does not need to be adjusted after leaving the factory. The calibration cycle can be extended, greatly reducing the workload of power management departments in testing and verifying energy meters, and the reliability is significantly improved compared to other similar products.
5. It has photoelectric isolation pulse output and RS485 communication interface, which facilitates functional expansion and meets the requirements of power management department management automation.
6. Small size, light weight, and easy installation. And there are multiple external dimensions to choose from.