The application prospects of current transformers in IOT systems

 

In today’s rapidly developing technological era, the Internet of Things (IOT), as an emerging technology, is changing every aspect of our lives. The Internet of Things makes the collection, analysis, and sharing of data more efficient and convenient by connecting various devices and sensors to the Internet. In the field of environmental protection, the application potential of the Internet of Things is particularly significant . Accurate, stable and durable current transformers are one of the important factors for the safe and efficient operation of IOT systems.

 

 

 

 

 

Basic Concepts of IOT

The IOT refers to connecting objects through the Internet to exchange and communicate information. It includes multiple components such as sensors, devices, software and networks. Sensors can collect environmental data such as temperature, humidity, air quality, etc., and these data are transmitted to the cloud through the network for analysis and processing. The core of the Internet of Things lies in the real-time and intelligent nature of data, which enables us to respond in a timely manner.

 

 

 

 

 

Application of IOT in Environmental Monitoring

 

 

1. Air quality monitoring

Air quality is an important factor affecting human health and the ecological environment. By deploying air quality sensors in cities and industrial areas, the Internet of Things can monitor the concentration of pollutants in the air in real time, such as PM2.5, sulfur dioxide, and nitrogen oxides. These data can not only help the government formulate more effective environmental policies, but also allow the public to understand the air quality status in a timely manner so that they can take corresponding protective measures.

 

 

 

 

2. Water quality monitoring

Water pollution is one of the major environmental issues facing the world. IOT technology can monitor the chemical composition and biological indicators in water in real time through water quality sensors. For example, sensors can detect heavy metals, bacteria, and nutrients in water to detect water pollution incidents in a timely manner. This real-time monitoring can help water departments respond quickly and ensure the safety of drinking water.

 

 

 

3. Soil monitoring

Soil is an important part of the ecosystem, and its quality directly affects agricultural production and ecological balance. The Internet of Things can monitor soil moisture, temperature, pH value, and nutrient content through soil sensors. These data can help farmers optimize fertilization and irrigation plans, improve agricultural production efficiency, and reduce negative impacts on the environment.

 

 

 

 

 

 

Application principle of current transformer in Internet of Things system

What is a Current Transformer?

The current transformer is an instrument that converts the primary side large current into the secondary side small current for measurement based on the principle of electromagnetic induction. It often has the entire current of the line flowing through it, and the secondary winding has a relatively large number of turns. It is connected in series with the measuring instrument and the protection circuit (usually used on secondary equipment such as electric meters and relays). When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to short circuit. The current transformer converts the primary side large current into the secondary side small current for measurement, and the secondary side cannot be open circuit.

 

HEYI Electric’s split-core current transformer designed specifically for the IOT system

HEYI KCT series split core current transformers are specially designed to achieve miniaturization and small installation space, and the voltage stabilization design can be easily installed around cables without damaging the circuit. The internal precision resistor across the secondary winding of the CT provides a low safety voltage output.

Figure 1 HEYI KCT-16L for IOT

 

 

Features :

Wide inner window allows clamping of large cables or busbars. The structure is self-locking, safe, easy to install and portable. Wide range of sizes to adapt to all existing installations. Isolation plastic housing certified according to UL94-V0. Five types of plugs: wire plug, audio plug, power plug.

 

 

 

Application:

Current measurement, monitoring and protection of wires and equipment. Current and power measurement of motors, lighting, air compressors, heating and ventilation systems, air conditioning equipment and automation control systems. Current, power and energy monitoring devices. Relay protection devices , etc.

 

 

 

 

Combination of KCT and IOT system

 

Our open-type current transformers are mainly used in IOT gateways, distribution boxes, distribution cabinets and other systems to monitor whether there is leakage inside the system, effectively ensuring the safe and stable operation of the entire system. Here we focus on the application in IOT gateways.

The IOT gateway will play a very important role in the future IOT era. It will become the link between the perception network and the traditional communication network . The IOT gateway can realize the protocol conversion between the perception network and the communication network, as well as between different types of perception networks . It can realize both wide-area interconnection and local-area interconnection. In addition, the IoT gateway also needs to have device management functions . Operators can manage the underlying perception nodes through the IOT gateway device, understand the relevant information of each node, and realize remote control . Let’s take the cooperation between the Korean environmental department and the IoT company as an example, as shown in the figure below

Figure 2: Data sharing between IOT companies and environmental departments

 

 

Figure 3 IOT gateway used for monitoring in production workshops

 

Summarize

 

As global warming continues, green and low-carbon production and living are challenges faced by people all over the world. Highly intelligent IoT gateways will be increasingly used for environmental testing in industrial and agricultural production. They provide an accurate basis for scientific governance by relevant departments. In the future, IoT systems will play an increasingly important role in environmental governance.

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