Challenges of Conventional Verification: Performing error verification on electromagnetic voltage transformers (VTs/PTs) and capacitive voltage transformers (CVTs) within Gas-Insulated Switchgear (GIS) presents significant field challenges. This process entails complex wiring requirements and necessitates a wide array of test equipment. Furthermore, this equipment is typically very cumbersome, making on-site transportation extremely difficult. The PT/CVT field calibrator has the following features:
1. Core Advantage: The Capacitive-Electromagnetic Voltage Transformer Calibrator overcomes these obstacles. Its key capability is accurately measuring the actual operational error under high-voltage conditions using only a low-voltage test signal. Crucially, this single, integrated device fulfills the requirements for on-site error measurement for both electromagnetic (VT) and capacitive (CVT) voltage transformers.
2. Measurement Range and accuracy: The calibrator provides comprehensive coverage, capable of measuring VTs and CVTs with voltage ratios spanning from 6kV up to 500kV.And the accuracy is 0.05.
3. Innovative Design & Technologies: The instrument's design incorporates novel concepts and leverages several advanced technologies, including:
Variable-frequency power supply technology; Universal platform architecture, Simulated voltage loads, Internal high-accuracy reference voltage transformers, Self-boosting power source.
4. User Benefits: These innovations collectively deliver substantial user benefits: significantly enhanced convenience, speed, and efficiency during operation.
5. User Interface & Operation: Utilizing the WINCE operating system, the calibrator features an intuitive user interface with a user-friendly color touchscreen. The human-machine interface (HMI) is designed for clarity and ease of use.