Table of Contents
Product Overview: Instrument Transformer Equipment by Kampa
Kampa’s line of instrument transformer equipment is engineered to safely isolate high voltage circuits, enabling precise measurement and reliable control. Designed with a focus on high dielectric strength, exceptional thermal stability, and long-term accuracy, these transformers ensure consistent performance crucial for modern grid reliability.
Our instrument transformers are tailored for both indoor and outdoor high-voltage environments, making them ideal for utility substations, industrial power distribution, and renewable energy plants. Whether integrating with medium voltage (MV) switchgear or outdoor transmission lines, Kampa’s solutions provide robust insulation and accurate electrical measurement transducers for enhanced safety and system efficiency.
Types of Instrument Transformer Equipment
Kampa offers a versatile range of instrument transformers tailored to different measurement and protection needs in power systems. Our Current Transformers (CTs) come in several types:
- Wound Primary CTs provide high accuracy and are ideal for applications requiring lower transformation ratios, perfect for precise metering.
- Window or Ring Type CTs are designed for busbar or cable mounting, making them well-suited for zero-sequence current applications. Their open-core design allows for easy retrofitting without disconnecting the primary conductor.
- Bar Type CTs are directly integrated with the primary conductor for robust, compact installation, often used in switchgear panels and distribution boards.
On the voltage side, we provide:
- Inductive Voltage Transformers (VT/PTs), standard in metering and protection schemes, offering reliable voltage transformation with high accuracy.
- Capacitive Voltage Transformers (CVTs), designed especially for higher voltage transmission lines, providing stable voltage signals for measurement and relay protection over long distances.
Each type meets stringent quality standards to ensure reliable operation across indoor and outdoor high-voltage environments. For detailed specifications and benefits of epoxy resin cast transformers, which are commonly used in our dry-type voltage transformers, explore our dry-type transformers for industrial applications. Similarly, our voltage transformers product range offers a closer look at the wide variety available for different requirements.
Technical Specifications & Selection Parameters
Choosing the right instrument transformer means focusing on key specs to match your application. Here’s what to keep an eye on:
| Parameter | Description | Typical Values / Examples |
|---|---|---|
| Transformation Ratio | Custom primary to secondary current or voltage ratings, designed to fit your measurement needs | CT: 1000:5 A, VT: 110 kV/100 V |
| Accuracy Class | Defines how precise the transformer is, crucial for metering and protection devices | Metering: 0.2s, 0.5s; Protection: 5P10, 10P20 |
| Burden (VA) | Power load transformer can drive without exceeding accuracy limits | Matches connected meters/relays; typical 10–30 VA |
| Insulation Level | Rated withstand voltage for normal operation and transient events like lightning strikes | Power frequency withstand voltage, Lightning Impulse Level (BIL) according to system needs |
Accuracy Class & Burden Details
- Metering Class CTs/VTs: High precision (0.2s, 0.5s) suitable for billing and power analyzers, where accuracy affects revenue.
- Protection Class CTs: Saturation characteristics (5P10, 10P20) enable fast response to faults for relays.
Matching the burden rating with your connected devices prevents errors and overheating, ensuring reliable performance.
By carefully selecting your instrument transformer’s specs, you guarantee safe, accurate measurements tailored for both indoor and outdoor high voltage environments. This ensures smooth integration into utility grids and industrial setups.
For the best fit in your high-voltage system, consider also pairing with reliable indoor high-voltage vacuum circuit breakers that protect and isolate transformers effectively.
Construction & Installation Features
When it comes to instrument transformer equipment, construction and installation matter a lot for reliability and safety.
Insulation Material
- Epoxy Resin Cast (Dry Type): Ideal for indoor use with excellent fire retardancy and environmental resistance. Our epoxy resin cast transformers offer solid insulation without the risk of oil leaks, making them a safe choice for enclosed switchgear. Learn more about our dry type epoxy resin cast transformers.
- Oil-Immersed: Common for outdoor high-load applications, providing excellent cooling and stability under harsh weather and heavy electrical stresses.
Switchgear Integration
- Dimensions are optimized for compact medium-voltage (MV) and high-voltage (HV) switchgear setups.
- Designed to fit easily into standard distribution panels without compromising space or performance.
Mounting Flexibility
- Supports direct busbar mounting, perfect for tight spaces and solid connections.
- Suitable for cable mounting, allowing easy retrofit or replacement without major system modifications.
- Options for base plate installation give added stability on flat surfaces or control cabinets.
| Feature | Description | Typical Use |
|---|---|---|
| Epoxy Resin Cast | Dry-type, fire-retardant insulation | Indoor switchgear, safe environments |
| Oil-Immersed | Superior cooling and load stability | Outdoor high-voltage lines |
| Busbar Mounting | Direct fitting on busbars | Compact switchgear and retrofits |
| Cable Mounting | Clamps around cables for easy installation | Flexible upgrades and maintenance |
| Base Plate Installation | Stable mounting on flat surfaces | Control rooms, panels |
This blend of insulation and mounting options ensures our instrument transformers adapt to various grid demands, helping maintain safety, ease of installation, and long-term performance. Check out our detailed specs on the LZZBJ9 10kV indoor cast resin current transformer for an example of these construction benefits in action.
Testing, Compliance & Quality Assurance
Our instrument transformer equipment undergoes rigorous dielectric tests, including power frequency withstand and partial discharge testing, to guarantee insulation integrity and long-term reliability. We also perform precise accuracy tests to verify ratio error and phase displacement, ensuring the transformers meet exact metering and protection requirements.
Kampa’s products comply with global standards like IEC 61869 and ANSI/IEEE C57.13, along with adherence to local grid codes. This ensures every Current Transformer (CT), Voltage Transformer (VT), and Potential Transformer (PT) is reliable for both utility and industrial applications. For detailed insights into insulation technology, refer to our dry type transformer insulation resources, which support quality assurance processes.
Applications in Power Systems
Instrument transformer equipment plays a crucial role across various power system applications to ensure accurate measurement, protection, and control. In utility substations, these transformers provide reliable grid metering by isolating high-voltage circuits while delivering precise current and voltage data for billing and monitoring purposes. For industrial power distribution, instrument transformers help safeguard motors and other equipment by enabling accurate motor protection through current monitoring and fault detection, enhancing operational safety and minimizing downtime.
In renewable energy plants, such as solar and wind farms, instrument transformers are integral for power analyzer integration, allowing real-time monitoring and performance analysis. This supports optimized energy output and helps maintain grid stability. Their adaptability for both indoor and outdoor use, combined with compliance to standards like IEC 61869, ensures seamless integration into diverse power systems, including medium voltage (MV) and high voltage (HV) switchgear.
For further insights on protecting and managing industrial networks, you can explore Kampa’s comprehensive solutions for industrial power networks or details about industrial power distribution protection.
Request a Quote / Download Catalog
Ready to enhance your power system with reliable instrument transformer equipment? Contact us today for a personalized quote tailored to your exact specifications, whether you need metering class CTs for precise measurement or protection class CTs designed for fault detection. Our engineering team is here to support you with expert advice on product selection, bulk pricing, and system integration.
You can also download our comprehensive catalog to explore detailed technical specifications, installation options, and compliance standards for our entire range of current transformers (CT), potential transformers (PT), and voltage transformers (VT). For seamless integration with your MV switchgear components or distribution panels, trust Kampa’s proven solutions to deliver lasting performance and safety.
Get in touch now for engineering support or bulk order discounts and ensure your project benefits from high-accuracy, durable instrument transformers designed to meet global standards.