Recently, COVID-19 affects everyone's heart, This is a war without gunsmoke. When one side is in trouble, all sides will help.  Acrel received Beijing Xiaotangshan hospital needs instrument and transformer supply notice, each department leisurely, orderly coordination, quickly the goods to the hospital.

This hospital project involves Acrel's energy meter and current transformer.  
Introduction to DTSD1352 electric energy meter

1. Reference standard

· GB/T 17215.322-2008 AC measuring equipment -- Special requirements -- Part 22: Static active electricity meters (class 0.2s and 0.2s);

· GB/T 17215.323-2008 AC measuring equipment -- Special requirements -- Part 23: Static reactive electricity meters (Class 2 and 3);

· GB/T 17215.211-2006 AC measuring equipment -- General requirements, tests and test conditions -- Part 11: Measuring equipment;

· GB/T 17215.301-2007 Multifunctional electricity meters Special requirements;

· DL/T 645-2007 Multifunctional watt-hour meter communication protocol;

2. Technical parameters

· Active power accuracy: 0.5s, reactive power accuracy: grade 2, voltage and current accuracy: grade 0.2;

· Voltage specifications: 3×100V, 3×380V, 3×57.7/100V, 3×220/380V;

· Current specifications: 3×1(6)A (via transformer),

3×10(80)A (direct access);

· Working temperature: -25℃~+55℃

· Relative humidity: ≤95℅ (no condensation)

· Supports two independent 485 communication channels. Modbus RTU /DL/T645-07 protocol is adaptive. Two 485 channels can be set independently, and different protocols can also be used.  Baud rate 1200bps-19200bps can be set, parity bit can be set;

· Support 1DI1DO;

· Support active pulse output;

· Overall size: 126*88*69, standard DIN35 guide rail installation;

3. Function requirements

· Support all power parameter measurements (U, I, P, Q, S, PF, F);  And 2-31 harmonic measurement;

· Support two-way active and reactive energy measurement, and support the multi-rate energy statistics for two sets of time tables, 4 time zones, 14 days and 4 rates.

· Statistics of support demand and occurrence time;

· Support the historical power of the last 48 months and the last 90 days (including the power rates).

· Support one circuit switching output and one circuit switching input;  (The second 485 communication is not supported when this function is selected)

· Three external NTC temperature measurement functions are supported. The temperature measurement range is -40 ° C to 99 ° C.  (Select this function does not support the switch quantity and second 485 communication);

· LCD Chinese display, backlight delay off time can be set;  In addition to the liquid crystal display electrical parameters, electric energy value, but also can display the current quadrant, communication status, phase, voltage loss, reverse sequence and other information;

· Support infrared communication;

·Modbus RTU /DL/T645-07 protocol is adaptive, and the two 485 can be set independently, or different protocols can be used.  Baud rate 1200bps-19200bps can be set, parity bit can be set;

Introduction of AKH-0.66 series current transformer

1. Product Features

Current transformer (CT) is a proportional current conversion device. Its main function is to convert large current into standard small current (5A or 1A, both of which refer to the rated value) in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment.  At the same time, the transformer can also be used to separate the high voltage system to ensure the safety of the equipment and the person.

In order to transmit the electric energy, the power system often uses the ac voltage and the large current circuit to send the electric power to the user, which cannot be directly measured by the instrument.  The purpose of the transformer is to scale the AC voltage and high current down to a level that can be measured directly with an instrument.

The shell of AKH-0.66 series current transformer is made of flame retardant and high temperature resistant material by injection molding, the iron core is made of oriented cold rolled silicon steel strip, and the secondary wire is made of high strength electromagnetic enameled wire. The product has novel structure, beautiful shape, convenient installation, small volume, high accuracy and large capacity.  The shell of the transformer is fixed by ultrasonic welding. The shell is solidly welded and the sealing performance is good.  The product conforms to national standard GB20840.2-2014(equivalent iec61869-2:2012, MOD).

2. Classification of transformer

In addition, we can provide solutions for "Xiaotangshan" hospitals around the country, as follows: