By hvhipot 
The HV Hipot Electric Co., Ltd.-901 Integrated Current and Voltage Transformer Field Calibration Instrument is a cutting-edge portable solution designed to revolutionize field calibration of instrument transformers.
This all-in-one device combines precision current transformer and voltage transformer calibration capabilities in a rugged, field-ready package that delivers laboratory-grade accuracy in demanding substation environments.
The system sets new standards for field calibration with its ±0.01% ratio accuracy and ±0.2 minute phase angle resolution, exceeding IEC 61869 and IEEE C57.13 requirements.
Its advanced dual-channel synchronous sampling technology ensures reliable measurements even in electrically noisy conditions, while the auto-ranging test series resonance adapts seamlessly to various transformer types – from low-ratio metering CTs to high-voltage CVTs.
The intelligent calibration workflow guides users through complex test sequences with automated burden compensation up to 30VA and live-tank measurement capabilities that minimize equipment downtime.
Engineered for real-world field conditions, the HV Hipot Electric Co., Ltd.-901 Integrated Current and Voltage Transformer Field Calibration Instrument features IP54-rated protection, MIL-STD shock resistance, and patented anti-interference shielding.
The sunlight-readable 10-inch multitouch interface provides intuitive control, while integrated GPS synchronization and wireless mesh networking enable system-wide calibration campaigns.
Beyond standard ratio and phase tests, the instrument performs comprehensive diagnostics including frequency response analysis, dielectric loss measurement, and excitation characteristic testing – all while maintaining NIST-traceable calibration with blockchain-secured data logging for complete audit compliance.
This innovative calibrator represents a paradigm shift in field metrology, combining metrology-grade accuracy with unprecedented diagnostic capabilities to support predictive maintenance strategies.
Its ability to perform non-invasive live-tank calibrations while generating legally valid certificates makes it indispensable for modern utilities managing smart grid assets, revenue metering systems, and protection schemes in an increasingly regulated power landscape.