The DDSY5999 single-phase electronic prepaid energy meter is a domestically advanced product manufactured using advanced solid-state, integrated technology, and SMT processes. It has the characteristics of anti-theft, high precision, high reliability, high overload, and low self power consumption. It is an ideal product for the current reform of the electricity system, realizing the commercialization of electricity, solving the difficulty of electricity billing, and facilitating unified management of electricity consumption. The product complies with GB/T17215.321-2008 and GB/T18460.3-2001 standards.

Function and characteristic

1. Adopting DES dynamic encryption algorithm, with strong encryption and reliable system data.

2. It has a prepaid function, where users purchase electricity first and then use it. When the remaining power is zero, the electricity meter automatically shuts off.

3. Adopting high-power magnetic holding relays, with strong overload capacity, long-term overload operation will not cause damage.

4. Active energy metering, with high accuracy, stable performance, low power consumption, anti-theft, and long-term use without calibration.

5. When the remaining power is low, it has two levels of alarm functions: constant display alarm and power-off alarm, reminding users to purchase electricity in a timely manner.

6. Load control function: When the electrical load exceeds the set value, the meter will automatically cut off power. After the load decreases, the meter will automatically resume power supply within about 5 minutes.

Main technical parameters

Rated voltage: 220V

Calibration current: 5 (20) A, 5 (40) A, 10 (40) A, 15 (60) A, 20 (80) A

Accuracy level: Level 1, Level 2

Pulse constant: 3200 imp/kw · h

Rated frequency: 50Hz

Working temperature: -25 ℃ -+55 ℃