1 Project Background

Monitor the voltage, current, power, total electric energy and other data of the electric meter in the power distribution room.

Monitor the current and temperature data of the transformer in the distribution room, and push an alarm when the data exceeds the rated indicators.

2 On-site survey

After on-site investigation, there are 3 transformer rooms with different types of electricity meters. The details are as follows:

No. 2 Transformer Distribution Room

Transformer Room No. 3

Transformer Room No. 1

In addition, a total of 11 new electricity meters were installed in the workshop.

In summary, there are a total of 10 circuit breakers, 24 old mechanical meters, 16 smart meters with communications, and 3 transformers.

3 Energy data collection and monitoring solution

3.1 Electricity meter collection solution

For old mechanical meters without communication function, they can be directly replaced with smart meters with communication function.

Three-phase smart meter-wireless communication

Electric meter supporting transformer (select according to current size)

For installed meters with communication functions, infrared is used to collect meter data. The schematic diagram of the solution is as follows:

Smart meter wireless data collection solution

Schematic diagram of infrared communication meter data collection and installation

3.2 Transformer acquisition solution

The on-site transformer is shown in the figure above. It monitors the busbar current using a flexible open transformer. The installation diagram is as follows:

Flexible wireless transformer installation diagram

The overall collection scheme is shown in the figure below. The data is transmitted to the cloud platform through the 4G gateway:

Schematic diagram of transformer current monitoring

3.3 Transformer room environment temperature and humidity collection solution

Wireless Temperature and Humidity Sensor

Considering that the transformer room is equipped with air conditioners for air cooling in summer, air temperature and humidity sensors are installed to monitor the indoor air temperature.

3.4 Circuit breaker data acquisition solution

The intelligent circuit breaker on site does not have the communication function. Considering the high cost, an additional power monitor is installed to collect power.

The advantage of this solution is that it does not affect the normal operation of the circuit breaker equipment and provides lossless data collection.

4 Data display solution

The platform supports viewing data through computer browsers, mobile apps, WeChat public accounts, etc.

Computer interface

Mobile phone interface

5 Equipment Energy Consumption Collection Solution

Power monitor

Installation diagram of transformer for electric quantity monitoring instrument

The equipment energy consumption collection solution can collect voltage, current, power, electric energy and other data at the same time, without the need to install wireless current sensors.

6 Quote