In a three-phase power system, the three-phase current transformer can be regarded as the "heart" of the entire system, responsible for core tasks such as monitoring, metering, and protection. Its working principle is electromagnetic induction, which can proportionally reduce the large current on the primary side to a small current on the secondary side. In this way, the measuring instruments, relay protection devices, and monitoring systems at the back end can receive accurate signals and work safely and steadily.
Today, let's use the DASN series products from Heyi Electric to explore the usefulness and advantages of this three-phase current transformer.
1. What is a three-phase current transformer?
1.1 Manage Electricity Cost Accounting - Accurate Measurement
In the power distribution system, a top priority for three-phase current transformers is to manage electricity cost accounting. To put it simply, its job is to real-time collect large currents in the circuit, and then "shrink" them proportionally to become small currents that can be directly processed by the energy meter. In this way, the amount of electricity used in factories and shopping malls can be calculated clearly. There are too many benefits to precise measurement: on the one hand, it provides a solid basis for electricity bill settlement; On the other hand, users can also understand where the electricity is specifically used, making it more convenient to achieve energy conservation and power saving.
1.2 System Protection and Control
In the protection of the power system, the role of three-phase current transformers is crucial, like an indispensable "safety sentinel". It watches the current situation in the line 24 hours a day without interruption, like a particularly reliable security guard.
Once an abnormality occurs, such as a sudden increase in current (i.e. overload) or a short circuit in the circuit, it can immediately react and send a signal to the protection device, causing the circuit breaker to quickly "trip" - in other words, quickly cut off the faulty circuit.
The benefits of doing so are very obvious: it can isolate the problematic parts in the shortest possible time, which not only protects the valuable equipment connected later, avoids being burned out, but also prevents small problems from turning into major accidents, ensuring the smooth and safe operation of the entire power grid system.
1.3 Intelligent Monitoring and Energy Management
Nowadays, everything is talking about intelligence, and three-phase current transformers are particularly useful in this regard. It can monitor the electricity load on three lines in real time, providing the most fundamental and authentic data foundation.
With these accurate data, we can do many things, such as conducting detailed energy consumption analysis to see where electricity is being used; It can also effectively improve power factor and reduce unnecessary energy loss; It can also allocate the electricity load of different regions more reasonably.
The ultimate goal is only one, which is to help users make energy management more refined and efficient, both worry free and cost-effective.
2. Several outstanding features of the Heyi DASN series.
2.1 Clever "Three in One" Design
The DASN series uses a clever "three in one" design. Simply put, it is the clever integration of three independent transformers into a single casing. The benefits of doing this are particularly practical: firstly, it saves space and reduces the crowding inside the distribution cabinet; Secondly, the wiring has become very simple, making installation particularly effortless. This design makes it particularly suitable for use with molded case circuit breakers, so that the layout of the entire distribution cabinet can be made very.
2.2 Solid and reliable performance
The performance of this series of products is quite strong, and certifications such as IEC and national standards have been passed. There is absolutely no problem with the hard indicators. Its current measurement range is particularly wide, ranging from 60 amps to 1600 amps, and the output signal can be flexibly selected as 5A or 1A. This means that it can basically meet the needs of both common industrial and commercial electricity consumption and some special scenarios. In addition, this product is particularly sturdy and durable, with strong overload resistance and very stable operation. Even in harsh on-site environments, it can withstand and has very high reliability.
2.3 Easy installation, visible safety
The DASN series is equipped with a terminal cover that can be rotated and fastened, which is particularly user-friendly in design. When wiring, it can be done with just one twist and one button, and the operation is particularly easy. More importantly, this cover can tightly block dust and moisture, effectively protecting the internal wiring terminals. Moreover, this lid is transparent! After connecting the wires, there is no need to bother opening them, and the condition inside can be seen at a glance, which is convenient for daily inspections and makes it more reassuring to use.
3. Where are Heyi Electric products used?
3.1 Standard Distribution Scenarios
Models like DASN240 and DASN242 are designed for conventional power distribution scenarios with currents ranging from 60 to 250 amperes, and require a large amount of usage. Take DASN240-150/5 as an example, it is particularly common in distribution cabinets of commercial office buildings or small and medium-sized factories. It can seamlessly integrate with mainstream molded case circuit breakers on the market, work together, and provide stable and reliable current measurement for the entire system.
3.2 Medium Capacity Applications
If the current that needs to be processed goes up to the medium range of 250A to 630A, then the DASN248 series is a very suitable choice. Take the DASN248-400/5 model in this series as an example. It is often used in large production workshops or data centers, with high measurement accuracy and particularly stable and reliable operation.
3.3 High current applications
If encountering situations with particularly high currents, such as the range of 600A to 1600A, the DASN250 series is an ideal choice. It is particularly suitable for use in critical positions such as the factory main incoming line, which can stably withstand high-intensity load currents and ensure the safe and stable operation of the entire power system.
4. Why choose Heyi Electric?
Heyi Electric is an old brand specializing in transformers. Our goal has always been to provide customers with reliable and thoughtful products and services. This DASN series three-phase current transformer not only has solid technology, but also has very stable quality. From your initial selection consultation to the later installation and debugging, we have a professional team to provide technical support, ensuring that you use it well and the whole process is smooth and worry free.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975
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