Have you ever wondered how electricity is measured and monitored in high-voltage power systems? How do engineers and technicians ensure the safety and reliability of the electrical grid? The answer lies in a particular type of device called Resin Cast Instrument Transformers.
Resin Cast Instrument Transformers transform high currents and voltages into low and standardised values that can be used by metres, relays, and other instruments. They are essential for power systems’ protection, control, and metering. They are also widely used in various fields, such as industrial, commercial, and residential applications.
This blog will explore the features, benefits, and uses of Resin Cast Instrument Transformers in different sectors. We will also examine some leading resin cast current transformers manufacturers and their products.
What are Resin Cast Instrument Transformers?
Resin-cast instrument Transformers are a type of instrument transformer cast using a liquid resin system under vacuum and controlled temperature. The resin provides insulation and protection to the transformer core and windings. It also gives the transformer a compact, robust design that can withstand harsh environmental conditions.
Resin Cast Instrument Transformers have two main types: current transformers (CTs) and voltage transformers (VTs). Current transformers measure the current flowing in a circuit, while voltage transformers measure the voltage across a circuit. Both transformers produce low and proportional outputs that instruments can safely and accurately measure.
Why are Resin Cast Instrument Transformers preferred?
Resin Cast Instrument Transformers have many advantages over other instrument transformers, such as oil-filled or gas-insulated transformers. Some of the benefits are:
- High insulation performance:
The resin used in Resin Cast Instrument Transformers is non-aging and has excellent dielectric properties. It can withstand high voltages and prevent partial discharge, which is a phenomenon that causes deterioration and failure of insulation. The resin also provides good thermal conductivity and heat dissipation, which prevents overheating and fire hazards.
- Low maintenance and long service life:
Resin Cast Instrument Transformers are sealed and do not require oil or gas filling or replacement. They also resist moisture, dust, corrosion, and UV rays. They do not need special cleaning or servicing and can last decades without degradation or loss of accuracy.
- Compact and lightweight:
Resin Cast Instrument Transformers have a simple and elegant design that reduces the size and weight of the transformer. They can be easily installed, transported, and fit in tight spaces and complex configurations. They also have a low noise level and a pleasing appearance.
- Customizable and versatile:
Resin Cast Instrument Transformers can be designed and manufactured according to customers’ needs and requirements. They can have different shapes, sizes, ratings, and specifications. They can also have different types of terminals, bushings, and mounting options. They can be used for indoor or outdoor applications and various voltage levels and frequency ranges.
How are Resin Cast Instrument Transformers used in Various Fields?
Resin Cast Instrument Transformers are widely used in various fields and sectors, such as:
- Power generation, transmission, and distribution:
Resin Cast Instrument Transformers are essential for measuring and monitoring measuring and monitoring the electrical parameters of power systems. They feed the inputs to metres, relays, circuit breakers, and other devices that control and protect the power grid. They also isolate the high-voltage circuits from the low-voltage instruments, ensuring the safety of personnel and equipment.
- Industrial and commercial applications:
Resin Cast Instrument Transformers measure and monitor industrial and commercial facilities’ electricity consumption and quality. They feed the inputs to energy metres, power analyzers, power factor correction devices, and other devices that optimise the facilities’ energy efficiency and performance. They also protect the facilities from overcurrent, overvoltage, short circuit, and other faults.
- Residential applications:
Resin Cast Instrument Transformers measure and monitor the electricity consumption and quality of residential buildings and households. They feed inputs to smart metres, energy management systems, and other devices that enable users to track and control their energy usage and bills. They also protect buildings and households from electrical hazards and faults.
Who are the leading Resin Cast Instrument Transformers Manufacturers?
Many resin cast current transformers and outdoor resin cast instrument transformer manufacturers are in the market, offering a wide range of products and services. One of the leading manufacturers is Gemini Instratech, an India-based company specialising in Resin Cast Instrument Transformers.
Gemini Instratech produces a variety of CTs (Current Transformers) ranging from 3.6 kV to 36 kV. These include Wound Primary, Bar Primary, and Window CTs. We use a liquid resin system with a plasticizer to cast all CTs under vacuum and controlled temperatures. Our CTs have been tested based on the latest IEC 60044-1 revision. Our CTs are available with various frames with primary currents ranging from 5 to 5000 amps. We can customise CT designs to match specific applications as per customers’ requirements. Our CTs use cyclo-aliphatic resin, which is a well-proven outdoor insulation and is widely used across the world in different climatic conditions. We offer CTs in the range of up to 36 kV system voltages.
Gemini Instratech provides Voltage Transformers (VTs), both Single-Phase and Three-Phase, ranging from 3.6 kV to 36 kV. These VTs are made using a liquid resin system cast under vacuum at controlled temperatures. They are type-tested per the latest revision of IEC 60044‐2. The VTs can be customised to suit customer requirements for specific applications. The company uses Cyclo-aliphatic resin, which has a proven track record for outdoor insulation in various climatic conditions. Currently, Gemini Instratech’s VTs are available for 36 kV system voltages.
Gemini Instratech has a state-of-the-art manufacturing facility with modern machinery and testing equipment. Its team of qualified and experienced engineers and technicians ensures the quality and reliability of its products. The company also has a solid customer base and a global presence, serving clients in various sectors and regions.
Conclusion
Resin Cast Instrument Transformers transform high currents and voltages into low and standardised values that can be used by metres, relays, and other instruments. They are essential for power systems’ protection, control, and metering. They are also widely used in various fields, such as industrial, commercial, and residential applications.
Resin Cast Instrument Transformers have many advantages over other instrument transformers, such as high insulation performance, low maintenance and long service life, compact and lightweight design, customizable and versatile features, and more. Many resin cast current transformers and outdoor resin cast instrument transformer manufacturers are in the market, offering a wide range of products and services. One of the leading manufacturers is Gemini Instratech, an India-based company specialising in Resin Cast Instrument Transformers.
If you want high-quality and reliable Resin Cast Instrument Transformers, consider Gemini Instratech, your partner. They have a proven track record and a reputation for excellence in the industry. You can visit their website or contact them for more information and inquiries.
