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Technical Overview of GTB Dry-type Testing Transformers
The GTB series dry-type testing transformers are engineered to meet diverse high-voltage testing requirements in industrial and laboratory settings. Designed in compliance with the JB-357084 test transformer standard, these units are suitable for applications such as insulation testing, dielectric strength assessment, and routine high-voltage verification of electrical equipment.
Key Features & Benefits
1.Compact & Maintenance-Free Design
The transformer is oil-free, eliminating risks of leakage and reducing environmental concerns. Its lightweight and integrated structure ensures easy handling and installation without the need for regular maintenance.
2.User-Friendly Operation
Featuring simple and intuitive wiring connections, the GTB series minimizes setup time and reduces the potential for operational errors, making it accessible for both trained technicians and engineers.
3.Robust Construction & Reliability
Built with a focus on durability and performance stability, the transformer ensures consistent output under varying test conditions. Its modern enclosure also provides mechanical protection and enhances safety.
4.Integrated Over-Voltage Protection
An internal over-voltage protection mechanism safeguards both the transformer and the equipment under test, preventing damage due to unexpected voltage surges and improving overall test security.
Technical Specifications (Selected Models)
Model | Capacity (kVA) | Output Voltage (kV) | Output Current (mA) | Dimensions (mm) | Weight (kg) |
GTB-5/50 | 5 | 50 | 100 | 330×280×510 | 37 |
GTB-10/50 | 10 | 50 | 200 | 360×350×850 | 32 |
GTB-30/50 | 30 | 50 | 600 | 430×450×1200 | 120 |
GTB-10/100 | 10 | 100 | 100 | 360×350×1100 | 75 |
GTB-30/100 | 30 | 100 | 300 | 430×450×1200 | 120 |
GTB-30/120 | 30 | 120 | 250 | 450×430×1200 | 130 |
Available Configurations
The series offers four primary types to accommodate different testing methodologies:
1.Power Frequency AC
2.AC/DC
3.AC Cascade
4.AC/DC Cascade
Each variant can be equipped with a dedicated control unit for precise regulation and monitoring of test parameters.
Typical Applications
1.Insulation resistance testing
2.Dielectric withstand voltage (hipot) tests
3.Commissioning and maintenance of switchgear, transformers, cables, and motors
4.Research and development in high-voltage engineering
Conclusion
The GTB dry-type testing transformer series combines functional flexibility, operational safety, and rugged design, making it a reliable choice for high-voltage testing applications. Its adherence to industry standards and thoughtful feature set ensures that technicians can perform accurate and repeatable tests with confidence.
GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/
