Introduction to Secondary Injection Relay Test Set
A secondary injection relay test set is a crucial piece of equipment in the electrical power industry. It is used to test protective relays, which are vital for the safe and reliable operation of electrical power systems. These test sets inject currents and voltages into the secondary circuits of relays to simulate different fault conditions and verify the proper functioning of the relays. By performing accurate and comprehensive tests, they help ensure that relays can detect faults promptly and initiate appropriate protective actions, preventing damage to electrical equipment and minimizing power outages. Secondary Injection Relay Test Set

Top 10 Suppliers
1. Refine On (Hebei) Electric Power Technology Co., Ltd.
Refine On (Hebei) Electric Power Technology Co., Ltd. is a leading provider of electrical testing equipment. With a strong focus on research and development, the company has been at the forefront of developing high – quality test solutions for the power industry. They are committed to providing innovative and reliable products to meet the diverse needs of their customers.
Features in Secondary Injection Relay Test Set:
- High – precision injection: The test sets can inject currents and voltages with high accuracy, ensuring reliable test results.
- User – friendly interface: It is designed with an intuitive interface, making it easy for operators to use and set up tests.
- Comprehensive test functions: Capable of performing a wide range of tests on different types of relays, covering various fault scenarios.
Advantages:
- Customized solutions: The company can offer customized test sets according to the specific requirements of customers.
- Excellent after – sales service: They provide prompt and efficient after – sales support to ensure the smooth operation of the equipment.
Website: https://www.transformer-test.com/
2. Megger Group Limited
Megger is a well – known global brand in the electrical testing field. With a history dating back over a century, the company has built a reputation for quality and reliability. It has a wide range of products and services, serving industries such as power generation, transmission, and distribution.
Features in Secondary Injection Relay Test Set:
- Robust construction: The test sets are built to withstand harsh industrial environments, ensuring long – term durability.
- Advanced technology: Incorporates the latest technological advancements for accurate and efficient testing.
- Multiple communication interfaces: Allows for easy connection with other devices and systems for data transfer and remote control.
Advantages:
- Global presence: Megger has a widespread network of sales and service centers around the world, providing easy access to support.
- Extensive product portfolio: Offers a comprehensive range of test sets suitable for different applications and relay types.
3. Omicron electronics GmbH
Omicron is a leading provider of testing and diagnostic solutions for the power industry. The company is known for its cutting – edge technology and innovative approach to product development. It has a strong focus on research and development to stay ahead in the market.
Features in Secondary Injection Relay Test Set:
- Real – time simulation: Can simulate real – world fault conditions in real – time, providing accurate test results.
- Software – based control: Allows for easy programming and control of the test set through software, enhancing flexibility.
- High – speed testing: Enables rapid testing of relays, reducing testing time and increasing productivity.
Advantages:
- Technical expertise: Omicron has a team of highly skilled engineers and technicians who can provide in – depth technical support.
- Compatibility: The test sets are compatible with a wide range of relays and other electrical equipment.
4. Doble Engineering Company
Doble Engineering is a trusted name in the electrical testing industry. It has been providing high – quality testing solutions for over a century. The company’s products are widely used in power utilities, industrial plants, and other electrical applications.
Features in Secondary Injection Relay Test Set:
- Precise calibration: The test sets are precisely calibrated to ensure accurate injection of currents and voltages.
- Self – diagnostic capabilities: Can perform self – diagnostics to detect any potential issues with the test set itself.
- Comprehensive reporting: Generates detailed test reports that can be used for analysis and documentation.
Advantages:
- Industry experience: With a long history in the industry, Doble has in – depth knowledge of the requirements of different applications.
- Training and support: Offers training programs and technical support to help customers use the test sets effectively.
5. Amprobe
Amprobe is a well – recognized brand in the electrical testing market. It offers a wide range of electrical testing tools and equipment, including secondary injection relay test sets. The company is known for its affordability and user – friendly products.
Features in Secondary Injection Relay Test Set:
- Compact design: The test sets are compact and portable, making them easy to carry and use in different locations.
- Simple operation: Designed with simplicity in mind, allowing even non – technical users to operate the test set with ease.
- Cost – effective: Provides good value for money, making it an attractive option for small and medium – sized enterprises.
Advantages:
- Wide availability: Amprobe products are widely available in the market, making it easy to purchase and replace parts.
- Customer – oriented: Focuses on meeting the needs of customers and providing good customer service.
6. Fluke Corporation
Fluke is a global leader in the manufacturing of electronic test tools. The company has a strong reputation for producing high – quality, reliable, and easy – to – use products. It serves a wide range of industries, including electrical, industrial, and automotive.
Features in Secondary Injection Relay Test Set:
- High – resolution display: The test sets are equipped with a high – resolution display that provides clear and detailed test results.
- Battery – powered option: Some models offer battery – powered operation, providing flexibility in testing in areas without a power supply.
- Data logging: Can log test data for later analysis and comparison.
Advantages:
- Brand reputation: Fluke is a well – known and trusted brand, which gives customers confidence in the quality of the products.
- Extensive distribution network: Has a large distribution network, ensuring easy access to products and support.
7. Chauvin Arnoux Group
Chauvin Arnoux is a French company with a long history in the electrical testing field. It offers a wide range of electrical measurement and testing equipment, including secondary injection relay test sets. The company is known for its high – quality products and innovative design.
Features in Secondary Injection Relay Test Set:
- High – power injection: The test sets can inject high – power currents and voltages, suitable for testing large – capacity relays.
- Modular design: Allows for easy expansion and customization of the test set according to different requirements.
- Advanced safety features: Incorporates advanced safety features to protect operators and the equipment during testing.
Advantages:
- European quality: The products are manufactured to high European standards, ensuring reliability and performance.
- Research and development: The company invests heavily in research and development to continuously improve its products.
8. Clare Controls
Clare Controls is a company that specializes in intelligent control and automation solutions for the electrical industry. It also offers secondary injection relay test sets that are integrated with advanced control and monitoring features.
Features in Secondary Injection Relay Test Set:
- Remote monitoring and control: Allows for remote monitoring and control of the test set through a network connection.
- Automation capabilities: Can automate the testing process, reducing human error and increasing efficiency.
- Integration with other systems: Can be integrated with other electrical control and monitoring systems for seamless operation.
Advantages:
- Smart technology: Utilizes smart technology to provide more intelligent and efficient testing solutions.
- Customized integration: Can provide customized integration solutions according to the specific needs of customers.
9. Hioki E.E. Corporation
Hioki is a Japanese company that is well – known for its high – precision electrical measurement and testing equipment. It has a wide range of products, including secondary injection relay test sets, which are used in various industries around the world.
Features in Secondary Injection Relay Test Set:
- High – accuracy measurement: The test sets can measure currents and voltages with high accuracy, ensuring reliable test results.
- Temperature compensation: Incorporates temperature compensation technology to ensure accurate testing in different temperature environments.
- Long – term stability: The test sets are designed for long – term stability, reducing the need for frequent calibration.
Advantages:
- Japanese quality: The products are manufactured to high Japanese quality standards, known for their reliability and durability.
- Technical innovation: Hioki is constantly innovating in the field of electrical testing, providing the latest technology in its products.
10. Kyoritsu Electrical Instruments Works, Ltd.
Kyoritsu is a Japanese company that has been in the electrical testing business for many years. It offers a variety of electrical testing equipment, including secondary injection relay test sets. The company is known for its quality products and excellent customer service.

Features in Secondary Injection Relay Test Set:
- Compact and lightweight: The test sets are compact and lightweight, making them easy to handle and transport.
- Easy maintenance: Designed for easy maintenance, reducing downtime and maintenance costs.
- Wide operating temperature range: Can operate in a wide range of temperatures, suitable for different environments.
Partial Discharge Tester Advantages:
- Japanese craftsmanship: The products are made with high – quality Japanese craftsmanship, ensuring long – term performance.
- Customer – centric approach: Focuses on meeting the needs of customers and providing prompt and efficient support.