Introducing the DGG Single Phase Epoxy Resin Casting Type Instrument Current Transformer, a pinnacle of precision engineering. Crafted with cutting-edge epoxy resin technology, this current transformer ensures exceptional performance and durability, tailored for your demanding electrical applications. Experience unparalleled accuracy and reliability with every use, setting new standards in the world of advanced electrical instrumentation.
We are a professional manufacturer dedicated to excellence in the production of high-quality Current Transformers, precision-engineered Dropout Fuse Cutouts,reliable Voltage Transformers, durable Vacuum Circuit Breakers/Reclosers, advanced Isolation Switches, dependable Lightning Arresters, High and Low Voltage Cabinets, state-of-the-art Metering Devices, and robust Power Distribution Transformers and more.
We excel in providing customized production services based on customer specifications. All our products are accompanied by comprehensive testing reports and certifications. Our rigorous testing protocols ensure that every instrument transformer is thoroughly evaluated and meets the highest standards before leaving our factory.
Our Indoor 12kv Instrument Transformer is designed with exceptional precision, adopting the cutting-edge epoxy-resin vacuum casting technique. Featuring a fully enclosed post structure, it is meticulously engineered for power systems operating at rated frequencies of 50Hz or 60Hz, with voltages reaching up to and including 10kV. This versatile transformer excels in electric energy metering, current measurement, and relay protection, offering flexible combinations of performance classes to suit varied needs. Performance Classes: Available in 0.2S, 0.2, 0.5, and 10P, ensuring tailored solutions for precise applications.
Our product is meticulously crafted to adhere to rigorous industry standards, specifically GB20840.1-2010, Instrument Transformers - Part 1: General requirements, ensuring reliability at the core. Additionally, it meets the GB 20840.2-2014, Instrument Transformers - Part 2: Additional requirements for current transformers, setting benchmarks for performance and safety, and is compliant with JJG 313-2010, Instrument Current Transformers, affirming our commitment to quality and innovation.
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 0.2S/0.5 0.2S/0.5/10P10 0.2S/10P10 |
10 10/10 10/10/15 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 |
1000-1500 |
72 |
144 |
Technical Parameters
- Insulation Level: 12/42/75kV Experience exceptional insulation performance with our state-of-the-art 12kV Instrument Transformer, ensuring robust electrical reliability and enhanced protection.
- Power Factor: cosΦ=0.8 (lag) Optimized for superior efficiency, our transformer features a power factor of cosΦ=0.8 (lag), delivering consistent and reliable performance in every application.
- Rated Secondary Current: 5A or 1A Choose from a rated secondary current of either 5A or 1A, tailored to meet diverse electrical demands and support versatile applications.
- Rated Frequency: 50Hz or 60Hz Compatible with systems operating at either 50Hz or 60Hz, our transformer offers flexibility and wide-ranging usability.
- Weight: 21kg Compact and lightweight at just 21kg, our design ensures easy handling and installation without compromising on durability.
Normal Environmental Usage
- Altitude: Should not exceed 1000m Engineered for optimal performance at altitudes up to 1000m, our transformer meets stringent environmental standards.
- Ambient Temperature: -5ºC~+40ºC Capable of functioning seamlessly within ambient temperatures ranging from -5ºC to +40ºC, our transformer is designed for varied environmental conditions.
- Air Relative Humidity: Less than or equal to 85% Our transformer maintains its efficiency in conditions with air relative humidity of up to 85%, ensuring dependable performance.
- Air Relative Site: Indoor Perfectly suited for indoor installations, our transformer is crafted to deliver exceptional service in controlled environments.
Outline and Installation Dimension
The following are the specific installation and external dimension drawings of the product. We can design products of different sizes and dimensions according to the requirements provided by the customer. Customize your experience with us as we offer bespoke design solutions to meet your specific needs, with detailed installation and dimension drawings available to guide your setup.
Denggao Electric Co., Ltd. proudly exports its exceptional products to every corner of the globe, with key markets including Ghana, Gambia, Ethiopia, Philippines, South Korea, Bangladesh, Australia, Pakistan, Azerbaijan, Myanmar, among others. Our products' unparalleled quality and outstanding performance have garnered universal acclaim from our clients, resulting in a flawless record with zero complaints spanning countless years.
Our expert team excels in crafting the most cost-effective power solutions tailored for our clients. We have played an instrumental role in designing their substation and distribution plans while successfully engaging in overseas bidding. We have triumphantly addressed and resolved the complex product requirements of our customers.
We proudly hold ISO certification, KEMA certification, along with a comprehensive array of detailed type test reports, ensuring the highest standards of quality and reliability.
Our expert packaging team is dedicated to providing bespoke solutions by customizing wooden boxes, logos, colors, and labels tailored to meet your unique specifications. We ensure your products are impeccably packaged with precision and shipped out accurately, offering you peace of mind and reliability.
Other Instrument Transformer
Discover our diverse range of instrument transformers, designed to cater to your specific needs and preferences. Our extensive selection ensures that customers can find the perfect transformer solution with ease and confidence.

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