Prepaid centralized multi-user IC card smart energy meter

1、 Introduction

The DDSH1521 prepaid centralized multi-user energy meter combination energy meter is a high-tech product developed and produced by the company. It adopts microelectronics processing technology and SMT surface welding and online testing technology, which can centrally detect up to 36 single-phase electricity users and 12 three-phase electricity users, display them in a loop by household, and collect the electricity consumption of each household through an infrared meter reader or realize computer networking through RS485 interface. The sensing element adopts the 1J77A high permeability micro current and voltage transformer developed by the German VAC vacuum melting company. Compared with manganese copper (or constantan) shunt elements, it has the characteristics of high accuracy, wide range, low self power consumption, and strong anti-interference ability. The DDSH1521 multi-user combination electric energy meter can be widely used in residential buildings, collective apartments and other electric power plants. It has the functions of small size, convenient meter reading and anti-theft, and is an old-fashioned mechanical device

Alternative products for electric energy meters.

2、 Technical features and parameters

1. Technical features

(1) Centralized detection and display of electricity meters, small meter box size, convenient meter reading, and prevention of electricity theft.

(2) High range of 10-60A, users do not need to replace their electricity meters due to the increase in household appliances.

(3) Realize remote networking and on-site meter reading.

(4) The case is stamped and formed, with good sealing performance, in compliance with the national standard GB/T17215-2002.

(5) The circuit is powered by a three-phase power supply. Even if the power supply line is out of phase, it can still measure normally.

(6) Simultaneously equipped with short-range infrared meter reading and remote computer networking meter reading functions.

(7) Using dedicated wiring terminals and double bolt crimping for more reliable use.

(8) Adopting high-precision miniature power transformers, the electrical isolation effect is good, and the overload capacity is strong. (9) The overall power consumption of the machine is low, lower than the power consumption of a mechanical energy meter (<7VA).

(10) The remote control DFSH multi household meter has a computer networking and power cut-off control function, which solves the problem of difficult electricity bill collection.

2. Technical parameters

(1) Calibration current: 10 (60A);

(2) Working voltage: AC160V~250V

(3) Accuracy level: 2.0 level;

(4) Environmental temperature: -20 ℃~55 ℃

（5）0.4％Ib; (6) Weight: Approximately 6kg

External dimensions: