Introducing the DGG Single Phase Epoxy Resin Casting Type Instrument Current Transformer, a marvel in modern electrical engineering. Designed by Denggao Electric Co., Ltd., this transformer showcases superior craftsmanship with its robust epoxy resin casting, ensuring unparalleled durability and precision in performance. The 42kv Casting Resin Current Transformer is meticulously engineered to enhance electrical safety and efficiency, making it an indispensable asset for your electrical systems. Elevate your electrical infrastructure with a product that promises safety and reliability like no other.
We are a professional manufacturer dedicated to crafting exceptional quality current transformers,dropout fuse cutouts,voltage transformers,as well as vacuum circuit breakers/reclosers, isolation switches, lightning arresters, high and low voltage cabinets, metering devices, and power distribution transformers among others.
We pride ourselves on our ability to customize production based on detailed customer drawings. Every product is accompanied by comprehensive testing reports and certificates, affirming our commitment to quality and safety. Our instrument transformers come with authoritative testing reports, and each product undergoes rigorous testing to ensure it meets the highest standards before it leaves our factory.
This remarkable 42kv Casting Resin Current Transformer employs cutting-edge epoxy-resin vacuum casting alongside a fully enclosed post structure. Specifically designed for power systems operating at a rated frequency of 50Hz or 60Hz, it accommodates voltages up to and including 10kV. This versatile transformer excels in its applications, whether it be electric energy metering, precise current measurement, or dependable relay protection. Its design allows for an arbitrary combination of classes, ensuring you have the flexibility needed for optimal functionality. Its class combinations include 0.2S, 0.2, 0.5, and 10P, catering to diverse requirements.
It rigorously adheres to internationally recognized standards, ensuring reliability and quality. GB20840.1-2010 Instrument transformers-Part 1: General requirements, GB 20840.2-2014 Instrument transformers-Part 2: Additional requirements for current transformers. JJG 313-2010 Instrument Current Transformers.
Transformer Ratio
Rated primary current (A) |
Accuracy class |
Rated output (VA) |
Rated short-time thermal current (kA/S) |
Rated Insulation level(kA) |
5 |
0.2S/0.5/10P10
0.2S/10P10/10P10
0.2S/10P20 |
10/10/15
10/15/15
10/15 |
0.36 |
0.9 |
10 |
0.72 |
1.8 |
15 |
1.08 |
2.7 |
20 |
1.44 |
3.6 |
25 |
1.8 |
4.5 |
30 |
2.16 |
5.4 |
40 |
2.88 |
6.3 |
50 |
3.6 |
7.2 |
60 |
4.32 |
8.1 |
75 |
5.4 |
13.5 |
80 |
5.76 |
14.4 |
100 |
7.2 |
18 |
120 |
8.64 |
21.6 |
150 |
10.8 |
27 |
200 |
14.4 |
36 |
250 |
18 |
45 |
300 |
21.6 |
54 |
400 |
28.8 |
63 |
500 |
36 |
72 |
600 |
43.2 |
108 |
800 |
57.6 |
120 |
1000-2000 |
72 |
144 |
Technical Parameters
- Insulation level: Crafted to provide safety and reliability, boasting insulation ratings at 12/42/75kV, perfect for high-performance environments.
- Power factor: Designed with precision, the power factor is cosΦ=0.8(lag), ensuring optimal energy efficiency and reduced losses.
- Rated secondary current: Available with flexibility to meet your needs at either 5A or 1A, tailored for various applications.
- Rated frequency: Operates seamlessly at your choice of 50Hz or 60Hz, providing versatility for global usage.
- Weight: Compact and efficient, the design weighs in at a manageable 21kg, ensuring ease of installation and handling.
Normal Environmental Usage
- Altitude: Ideal for various terrains, the altitude should not exceed 1000m, making it suitable for most geographical locations.
- Ambient temperature: Engineered to function in a wide range of conditions, from -5ºC to +40ºC, delivering robust performance.
- Air Relative Humidity: The product maintains its integrity and efficiency in conditions with air relative humidity less than or equal to 85%.
- Air relative site: Designed for indoor use, ensuring optimal performance in controlled environments.
Outline and Installation Dimension
The following are the specific installation and external dimension drawings of the product. We offer customizable solutions, designing products of various sizes and dimensions to meet unique customer requirements, ensuring a perfect fit for your needs.
Denggao Electric Co., Ltd. takes immense pride in exporting our cutting-edge products to various parts of the globe, with significant presence in key markets such as Ghana, Gambia, Ethiopia, Philippines, South Korea, Bangladesh, Australia, Pakistan, Azerbaijan, Myanmar, and beyond. The outstanding quality and superior performance of the 42kv Casting Resin Current Transformer have earned us high praise from our valued customers, with a remarkable track record of zero complaints over the years.
Our dedicated team excels in crafting the most cost-effective power solutions tailor-made for our clients' needs. We are proud participants in the strategic design of substation and distribution plans, and have successfully engaged in overseas bidding. Our expertise consistently resolves product requirements, ensuring complete satisfaction for our customers.
We proudly possess ISO certification, Kema certification, along with an extensive array of comprehensive type test reports, showcasing our commitment to unparalleled quality and safety assurances.
Our dedicated packaging team specializes in creating bespoke wooden boxes and personalizing logos, colors, and labels to meet your distinct specifications. We ensure that your products are impeccably packaged for safe transit and shipped with unparalleled precision.
Other Instrument Transformer
In addition to our cutting-edge 42kv Casting Resin Current Transformer for Enhanced Electrical Safety, we offer a diverse range of other premium-quality instrument transformers. These alternatives are designed to meet various needs and preferences, providing our esteemed customers with a comprehensive selection from which to choose.

1.Q:Can you print my logo&design?
A:Yes we can print your logo , please send us your logo picture&artwork ,and have all texts outlined .Also please let us know printing size,color,method and position of the logo.
2.Q:Are you a factory or a trader?
A:We are a factory with over 20 years of production experience, supporting both OEM and ODM modes for customized production for customers.
3.Q:What is the minimum order quantity for your company?
A:Our company's minimum order quantity is greater than or equal to 1 unit.
4.Q:How can I get to your company?
A:Our company's address is No. 268 Weiqi Road, Leqing Economic Development Zone, Leqing City, Wenzhou City, Zhejiang Province.You can take a plane to Wenzhou Longwan International Airport or take the high-speed rail to Yueqing Station.
5.Q:How many ways of shipping ?
A:By sea(cheapest ,but slow); by express(DHL,FedEx,UPS...) ; by air
6.Q:What's the sample time and production time ?
A:Sample(in stock):10-15 days Production time :30-50 days .
7.Q:How to get a sample ?
A:Some samples can be provided for free. If you can confirm that there will be a large order to purchase from our company, then you only need to pay for the shipping fee; Customized samples, please contact us for sample fees.
Order Notice
1. Please specify the model and current e.g. LZZBJ9-10A3G 100/5
2. Please specify the accuracy class and rated output; e.g. 0.2S 10VA
3. Please contact us if there is any specific requirement.
4. Please specify the order quantity and delivery time