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May 24, 2024

Top Current Transformers Manufacturers Comprehensive Guide Sourcing from China.

Top current transformers in China introduce,list main products and website if have

1. Beijing Dabeinong Technology Group Co., Ltd. is a leading manufacturer of current transformers in China. Their main products include split core current transformers, closed-loop current transformers, and busbar current transformers. These transformers are widely used in power distribution systems, industrial automation, and energy metering applications. For more information, you can visit their website at

2. Yueqing Wantong Transformer Co., Ltd. specializes in the production of current transformers for various industries. Their product range includes epoxy resin current transformers, oil-immersed current transformers, and ring core current transformers. These transformers are designed for high accuracy and reliability in voltage and current measurement applications. To learn more about their products, visit their website at

3. Jiangsu Acrel Electrical Manufacturing Co., Ltd. is a trusted manufacturer of current transformers in China. Their product offerings include split core current transformers, window-type current transformers, and resin-cast current transformers. These transformers are engineered for precise current measurement and are suitable for use in power monitoring systems and energy management applications. For more details about their products, you can check out their website at

Overall, these top current transformer manufacturers in China offer a wide range of high-quality products designed to meet the specific needs of customers in various industries. Consumers can rely on these reputable companies for reliable and efficient current transformers for their applications.

current transformers

Types of current transformers

There are several types of current transformers that are commonly used in various electrical applications. The most common type is the ring-type current transformer, which consists of a ring-shaped core made of a magnetic material, with a primary winding passing through the core. The secondary winding is wrapped around the core and connected to the measuring instrument. Ring-type current transformers are suitable for measuring large currents, such as those in power distribution systems.

Another type of current transformer is the wound-type current transformer, which consists of a straight core with a primary winding wrapped around it. The secondary winding is also wrapped around the core and connected to the measuring instrument. Wound-type current transformers are used for measuring lower currents in industrial and commercial applications.

There are also window-type current transformers, which have a split core that can be opened and closed around the conductor carrying the current to be measured. This type of current transformer is often used in retrofit applications or in situations where it is not feasible to disconnect the conductor.

Bar-type current transformers are another common type, which consist of a bar-shaped core with a primary winding wrapped around it. The secondary winding is connected to the measuring instrument. Bar-type current transformers are suitable for measuring currents in busbars or conductors with irregular shapes.

In conclusion, there are various types of current transformers available for different applications and requirements, such as ring-type, wound-type, window-type, and bar-type current transformers. Each type has its own advantages and limitations, and the choice of transformer depends on the specific needs of the electrical system or equipment being measured.

Pros and Cons of Using current transformers

Current transformers are widely used in electrical systems for measuring and monitoring current flow. They offer several advantages, such as accuracy, safety, and ease of installation. However, they also have some drawbacks that must be considered.


1. Accuracy: Current transformers provide accurate measurements of current flow, making them essential for ensuring the proper functioning of electrical systems.

2. Safety: By isolating the high voltage current flowing through a circuit, current transformers help prevent electrical shocks and fires.

3. Ease of installation: Current transformers are relatively easy to install and can be quickly integrated into existing electrical systems without the need for extensive modifications.

4. Cost-effective: Compared to other current measurement devices, current transformers are cost-effective and offer good value for money.

5. Versatility: Current transformers can be used in a variety of applications, from measuring current in industrial machinery to monitoring power consumption in residential buildings.


1. Saturation: Current transformers can become saturated when the current exceeds a certain level, leading to inaccurate readings.

2. Frequency limitation: Most current transformers are designed for use at a specific frequency, which may limit their use in some applications.

3. Voltage limitations: Current transformers are only designed to measure current, not voltage, so they may not be suitable for all types of electrical measurements.

4. Size and weight: Current transformers can be bulky and heavy, making them difficult to install in tight spaces or in portable applications.

5. Limited range: Current transformers have a limited range of current measurements they can accurately measure, which may require multiple transformers for larger systems.

In conclusion, current transformers offer many benefits, such as accuracy, safety, and versatility, but also have limitations, including saturation, frequency restrictions, and size considerations. When using current transformers, it is essential to understand their capabilities and limitations to ensure reliable and accurate measurements.

current transformers Reference Specifications (varies for different product)

Current transformers are essential components in electrical power systems as they ensure accurate measurement of current flow for monitoring and protection purposes. The reference specifications for current transformers may vary depending on the product and its intended application.

Common reference specifications for current transformers include the rated input current, rated output current, accuracy class, burden, frequency range, insulation level, and temperature range. The rated input current refers to the maximum current that can be measured by the transformer without saturation, while the rated output current is the secondary current that is proportional to the primary current and used for measurement and protection.

Accuracy class denotes the level of accuracy in which the current transformer operates under specified conditions, typically ranging from 0.1 to 10. Burden indicates the maximum load that can be connected to the secondary winding without affecting accuracy. The frequency range specifies the range of frequencies over which the transformer operates effectively.

Insulation level refers to the withstand capability of the transformer to voltage stresses, ensuring safety and reliability in operation. Temperature range signifies the operating temperature limits within which the transformer can perform efficiently without overheating.

It is important to select the appropriate current transformer with reference to these specifications to ensure accurate and reliable current measurement in electrical systems. Failure to adhere to these specifications may result in incorrect readings, equipment damage, or compromised safety in the power system.

current transformers

Applications of current transformers

Current transformers are widely used in various applications for monitoring and protection purposes. Some of the common applications of current transformers include:

1. Power distribution: Current transformers are used in power distribution systems to measure the current flowing through the conductors. This data is essential for monitoring the power quality, detecting faults, and ensuring the efficient operation of the distribution system.

2. Electrical monitoring: Current transformers are used in energy management systems to monitor the power consumption of different electrical loads. This information helps in optimizing the energy usage, identifying energy wastage, and reducing electricity bills.

3. Electrical protection: Current transformers are essential components in protective relays that are used to detect overcurrent conditions and short circuits in electrical systems. The output signals from the current transformers trigger the protective devices to isolate the faulted section of the system and prevent further damage.

4. Metering: Current transformers are used in electricity meters to measure the current flow in the circuits accurately. This data is crucial for billing purposes, monitoring energy usage, and tracking power quality parameters.

5. Renewable energy systems: Current transformers are used in renewable energy systems, such as solar and wind power installations, to monitor the current flow from the renewable sources. This information helps in optimizing the energy production, managing the power output, and ensuring the stability of the grid.

In conclusion, current transformers play a vital role in various applications, from power distribution and electrical monitoring to protection and metering. Their accurate and reliable measurement of current flow is essential for ensuring the efficient and safe operation of electrical systems.

Material of current transformers

Current transformers are commonly made from materials such as iron, silicon steel, or nickel iron alloys. These materials are selected because of their magnetic properties, which allow them to effectively convert high currents into lower levels for measurement and protection purposes.

Iron is a popular material for current transformers due to its high magnetic permeability and low cost. It provides good saturation characteristics and is easily magnetized, making it an efficient choice for transformers designed to operate at lower frequencies.

Silicon steel is another common material used for current transformers because of its enhanced magnetic properties compared to regular steel. Silicon steel cores offer lower hysteresis and eddy current losses, resulting in higher efficiency and accuracy in current measurement.

Nickel iron alloys, such as Permalloy or mumetal, are also utilized in current transformers for their high magnetic permeability and low coercivity. These materials are suitable for applications requiring high accuracy and minimal magnetic interference.

Ultimately, the choice of material for a current transformer depends on the specific requirements of the application, including the desired accuracy, frequency range, and cost considerations. Designers must carefully consider the trade-offs between magnetic properties, core losses, and manufacturing costs to select the most appropriate material for their specific needs.

Quality Testing Methods for current transformers and how to control the quality

1. Ratio and phase angle testing: This method involves testing the accuracy of the current transformer by applying a specified primary current and measuring the corresponding secondary current. The ratio between the primary and secondary currents should match the rated ratio of the current transformer. The phase angle between the primary and secondary currents should also be within the specified limits.

2. Insulation resistance testing: Insulation resistance testing is essential to ensure that the current transformer is free from any electrical faults or short circuits. A high insulation resistance value indicates that the current transformer is capable of withstanding the operational voltages without breakdown.

3. Polarity testing: Polarity testing is done to ensure that the direction of the primary and secondary currents is correctly aligned. Incorrect polarity can lead to inaccurate measurements and potential damage to the electrical equipment.

4. Burden testing: Burden testing involves connecting the current transformer to its intended load and verifying that it can accurately measure the current under normal operating conditions. This helps to ensure that the current transformer can perform reliably in practical applications.

5. Temperature rise testing: Temperature rise testing is done to evaluate the thermal performance of the current transformer. The current transformer should be able to withstand the specified temperature rise without any adverse effects on its performance or insulation properties.

To control the quality of current transformers, manufacturers should establish comprehensive quality control procedures that include regular testing and inspection of the transformers. This can help to identify any defects or deviations from the specifications at an early stage and take corrective actions to ensure that only high-quality products are delivered to the customers. Additionally, adherence to international standards and guidelines for current transformer design and testing can further enhance the quality control process.

current transformers

The Work Process and how to use current transformers

Current transformers (CTs) are essential components in power systems for measuring and monitoring current flow. A CT operates by stepping down high current levels to a lower, more manageable level that can be safely measured by instruments.

The work process of a CT involves placing the CT around the primary conductor carrying the current to be measured. The CT transforms the current passing through the primary conductor into a proportional current on its secondary side, typically at a ratio of 1:5, 1:10, or 1:100. This current is then measured by a connected ammeter or other monitoring device.

To use CTs effectively, it is important to select the appropriate CT ratio based on the expected current levels in the system. Oversized CTs can lead to inaccuracies in measurements, while undersized CTs may not be able to measure the required current levels accurately.

When installing CTs, ensure that the primary conductor passes through the CT center hole completely and that the CT is securely fastened. Also, make sure the secondary leads are connected properly to the measuring device according to the specified polarity.

Regular maintenance and calibration of CTs are crucial to ensure accurate readings. Periodically check for any signs of damage or wear and tear, and replace CTs as necessary.

In conclusion, CTs are vital components in power systems for measuring current flow. Understanding the work process of CTs and proper usage techniques can help in ensuring accurate and reliable measurements for effective monitoring and control of power systems.

current transformers Importing questions including Cost,Supplier,Sample,Certification and Market

Importing current transformers comes with a few crucial questions that need to be answered before making a decision. The cost of current transformers can vary depending on the quality, size, and specifications needed for your application. It is essential to compare prices from different suppliers to ensure you are getting the best deal without compromising on quality.

When it comes to choosing a supplier, it is important to consider their reputation, experience, and customer feedback. Look for suppliers that have a proven track record of delivering high-quality products on time and within budget. Requesting samples from potential suppliers can also help you assess the quality and suitability of their current transformers for your specific needs.

Certification is another important factor to consider when importing current transformers. Look for suppliers that have the necessary certifications and comply with industry standards to ensure the products you receive meet safety and performance requirements. Common certifications for current transformers include ISO, CE, and UL certifications.

Lastly, researching the market for current transformers can help you understand the demand, competition, and pricing trends in the industry. This information can help you make informed decisions when selecting suppliers and negotiating prices.

In conclusion, when importing current transformers, consider cost, supplier reputation, sample testing, certification, and market analysis to ensure you are making the best choices for your business. By addressing these key questions, you can increase the chances of a successful and cost-effective import process.

How to find and select check reliable current transformers manufacturers in China

When searching for reliable current transformer manufacturers in China, there are a few key steps to take in order to ensure you are selecting a high-quality supplier:

1. Research online: Start by researching current transformer manufacturers in China online. Look for companies with a strong reputation, positive customer reviews, and a history of producing high-quality products.

2. Verify certifications: Check if the manufacturer has the necessary certifications and quality standards in place, such as ISO 9001 certification. This will ensure that their products meet international quality standards.

3. Contact multiple suppliers: Reach out to multiple suppliers to compare prices, product offerings, and lead times. Ask for samples or product specifications to ensure they meet your requirements.

4. Request references: Ask for references from other customers who have worked with the manufacturer. This will give you a better understanding of their reputation and reliability.

5. Visit the factory: If possible, visit the manufacturer’s factory in person to see their production process and quality control measures. This will give you a better sense of their capabilities and the quality of their products.

By following these steps, you can find a reliable current transformer manufacturer in China that meets your needs and requirements. Remember to prioritize quality and reliability when making your final decision.

Background Research for current transformers manufacturers Companies in China, use

Current transformer manufacturers in China can be found on online platforms such as,, and These companies produce a wide range of products used for electrical measurement and protection purposes in various industries including power generation, distribution, and transmission.

Some well-known current transformer manufacturers in China include Tianchang T&F Electronics Co., Ltd., Zhejiang Jiangshan Transformer Co., Ltd., and Shandong Huiyuan Building Materials Group Co., Ltd. These companies offer a variety of current transformer products in different specifications and configurations to meet the diverse needs of their customers.

Many current transformer manufacturers in China operate modern production facilities equipped with advanced technology and machinery to ensure the quality and reliability of their products. They also adhere to strict quality control measures and international standards to meet the requirements of their domestic and international clients.

These companies often have a strong focus on research and development to continuously improve their products and introduce innovative solutions to the market. Additionally, they provide comprehensive customization services to tailor their products to specific customer requirements.

Overall, current transformer manufacturers in China play a crucial role in the global electrical industry by supplying high-quality products that are essential for accurate electrical measurement and protection systems.

current transformers

Price Cost Research for current transformers manufacturers Companies in China, use and

When researching current transformers manufacturers in China, two popular websites to utilize are and These platforms offer a wide range of suppliers and products, making it easier to find competitive prices for current transformers.

Start by searching for current transformers on or to browse through different manufacturers and suppliers. Compare prices, product specifications, and customer reviews to identify potential suppliers that meet your requirements.

Contact the shortlisted manufacturers to request quotes for the current transformers you need. Provide details such as quantity, specifications, and any customization requirements to get accurate pricing information.

Consider factors such as minimum order quantities, payment terms, and delivery times when comparing quotes from different suppliers. Keep in mind that prices may vary depending on the quality of the products, certifications, and additional services offered by the manufacturers.

By conducting thorough research on and, you can find reliable current transformers manufacturers in China that offer competitive prices and high-quality products. Don’t forget to verify the credibility and reputation of the suppliers before making a purchase to ensure a smooth transaction.

Shipping Cost for current transformers import from China

When importing current transformers from China, the shipping cost is a crucial factor to consider in order to ensure the overall cost-effectiveness of the transaction. The shipping cost for current transformers from China can vary depending on several factors such as the weight and dimensions of the package, the chosen shipping method, and any additional services required.

Typically, current transformers are relatively small and lightweight, so they can be shipped via air freight, sea freight, or courier services. Air freight is generally the fastest but most expensive option, while sea freight is more cost-effective but has a longer transit time. Courier services like DHL, FedEx, or UPS offer a balance between speed and cost.

For a standard shipment of current transformers from China to the US, the estimated shipping cost via air freight can range from $500 to $1000 for a medium-sized package. Sea freight costs can vary from $200 to $500 for the same package size but with a longer transit time of around 2-4 weeks. Courier services may charge anywhere from $50 to $200 for express delivery within 3-5 days.

To ensure that the shipping cost does not exceed the budget limit of $300, it is important to compare quotes from different shipping providers, negotiate favorable terms, and consider consolidating multiple orders to achieve cost savings. Additionally, optimizing the packaging to reduce the volumetric weight can help lower the shipping cost. Overall, by planning ahead and exploring various shipping options, it is possible to import current transformers from China within the $300 budget.

current transformers

Compare China and Other current transformers Markets: Products Quality and Price,Visible and Hidden Costs

When comparing China’s current transformers market with other global markets, there are noticeable differences in product quality and price. China is known for its competitive pricing, offering current transformers at a lower cost compared to other markets. However, this often comes at the expense of product quality. While some Chinese manufacturers may produce high-quality current transformers, there are also many lower-quality products on the market.

In terms of visible costs, Chinese current transformers are generally more affordable, making them an attractive option for customers looking to save on upfront expenses. However, hidden costs may arise in the form of maintenance and repairs due to lower durability and reliability in some Chinese products.

On the other hand, current transformers from other markets such as Europe or North America are often priced higher but come with a reputation for better product quality and reliability. Customers may pay a premium for these products upfront, but they may save on hidden costs in the long run by avoiding frequent repairs or replacements.

Ultimately, the decision between purchasing current transformers from China or other global markets will depend on the customer’s priorities. If price is the primary concern and the customer is willing to take a risk on product quality, China may be a suitable option. However, customers who prioritize quality and reliability may be better off investing in current transformers from other markets, despite the higher upfront costs.

Custom Private Labeling and Branding Opportunities with Chinese current transformers Manufacturers

Chinese current transformers manufacturers offer custom private labeling and branding opportunities for businesses looking to differentiate themselves in the market. By partnering with these manufacturers, companies can create a unique identity for their products and increase brand recognition among customers.

With the ability to customize everything from the packaging to the product itself, businesses can tailor the current transformers to fit their specific needs and target audience. This can include adding logos, colors, and messaging to create a cohesive brand image that resonates with customers.

Additionally, working with Chinese manufacturers allows businesses to take advantage of competitive pricing and high-quality products. With access to state-of-the-art technology and experienced production teams, companies can ensure that their current transformers meet the highest standards of excellence.

Overall, collaborating with Chinese current transformers manufacturers for private labeling and branding opportunities can help businesses stand out in a crowded market and drive customer loyalty. By offering unique and personalized products, companies can build a strong brand identity and establish themselves as leaders in the industry.

Tips for Procurement and Considerations when Purchasing current transformers

1. Determine the required specifications: Before purchasing current transformers, it is essential to identify the required specifications such as current rating, accuracy class, burden, and frequency rating. These specifications will ensure that the current transformers meet the necessary requirements for the application.

2. Consider the type of current transformer: There are various types of current transformers available, including solid core, split core, and rope CTs. Each type has its own advantages and considerations, so it is important to choose the type that best suits the application requirements.

3. Choose the right accuracy class: The accuracy class of a current transformer determines how closely the secondary current matches the primary current. The accuracy class needed will depend on the application requirements, with classes ranging from 0.1 to 10.

4. Evaluate the burden rating: The burden rating of a current transformer refers to the maximum load that can be connected to the secondary winding without affecting the accuracy of the output signal. It is important to choose a current transformer with a suitable burden rating to ensure accurate measurement results.

5. Consider the installation requirements: Before purchasing current transformers, it is important to consider the installation requirements, such as mounting options, connection type, and physical dimensions. This will ensure that the current transformers can be easily and securely installed in the application.

6. Verify compliance with standards: When purchasing current transformers, it is important to verify that they comply with relevant standards such as IEC, IEEE, or ANSI. Compliance with standards ensures that the current transformers meet quality and performance requirements.

7. Seek recommendations and reviews: Before making a purchase, it can be beneficial to seek recommendations from others in the industry or read reviews of different current transformers. This can provide valuable insights into the performance and reliability of the products.

By considering these tips and factors when purchasing current transformers, you can ensure that the selected transformers meet the requirements of the application and provide accurate and reliable measurements.

current transformers

FAQs on Sourcing and Manufacturing current transformers in China

Q: Can I trust Chinese manufacturers to produce high-quality current transformers?

A: Yes, many Chinese manufacturers have a reputation for producing high-quality electrical products, including current transformers. It is essential to conduct thorough research and select a reputable manufacturer with a track record of delivering reliable products.

Q: How can I ensure the quality of current transformers sourced from China?

A: You can ensure the quality of current transformers by conducting thorough due diligence on potential manufacturers, requesting samples for testing, and performing regular inspections during the manufacturing process. It is also helpful to work with a trusted sourcing partner in China who can oversee the production process on your behalf.

Q: Are there any specific certifications or standards I should look for in Chinese current transformers?

A: It is essential to look for current transformers that meet relevant international standards, such as IEC or ANSI. Additionally, certifications such as ISO 9001 for quality management systems and CE marking for compliance with European standards can provide further assurance of quality.

Q: How can I manage the risks associated with sourcing current transformers from China?

A: To manage risks when sourcing current transformers from China, it is essential to conduct thorough supplier due diligence, establish clear specifications and quality requirements, and have a robust quality assurance process in place. It is also helpful to have a contingency plan in case of any issues with the product or manufacturer.

Q: What is the typical lead time for manufacturing current transformers in China?

A: The lead time for manufacturing current transformers in China can vary depending on the complexity of the product and the manufacturer’s production capacity. Typically, lead times range from a few weeks to a few months, so it is essential to plan ahead and communicate your timeline requirements clearly with the manufacturer.

Why contact get free quota from reliable current transformers suppliers? is a valuable resource for connecting with reliable current transformers suppliers in China. By contacting Sourcify China, you can access a free quota for sourcing current transformers from trusted manufacturers. This service helps streamline the process of finding reputable suppliers, saving you time and resources.

Sourcify China works with a network of pre-vetted suppliers, ensuring that you are connected with quality manufacturers who can meet your specific requirements. By requesting a free quota through Sourcify China, you can access competitive prices and negotiate favorable terms with suppliers who have been carefully evaluated for their production capabilities, quality control measures, and adherence to industry standards.

Sourcify China’s expertise in sourcing from China can help you navigate the complexities of overseas manufacturing and procurement, reducing the risk of working with unreliable suppliers. By taking advantage of the free quota offered by Sourcify China, you can benefit from their industry knowledge and connections to secure the best possible deals on current transformers.

In conclusion, contacting for a free quota from reliable current transformers suppliers is a smart choice for businesses looking to streamline their sourcing process and access high-quality products at competitive prices. This service can help you build strong relationships with trustworthy manufacturers in China, ultimately leading to cost savings and improved product quality for your business.

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