Geomagnetic Induced Current Monitoring for Power Transformers

GIC Sensors sense, measure and communicate DC ground currents in utility environments, while the E3 Transformer Monitor measures and calculates current waveform harmonics and VAR loading. The page outlines GMD risks, operational impacts, and references FERC order 830 and NERC TPL-007 requirements for assessing assets and collecting GIC data.

Product Overview

• GIC Sensors measure and communicate DC ground currents. - E3 Transformer Monitor calculates current waveform harmonics and VAR loading. - Supports NERC TPL-007 data collection. - Mitigates GMD impacts on wye-connected transformers and helps system stability during geomagnetic disturbances and reactive power management.

E3 Transformer Monitor and GIC Sensors provide continuous GIC monitoring for power transformers. They measure and communicate DC ground currents, calculate current waveform harmonics and VAR loading, and support NERC TPL-007 data collection. Enable better planning decisions, alarm awareness, and system stability during geomagnetic disturbances affecting grounded wye connected transformers.

Target Market

Ideal for transmission and generator owners, utility operations, substation and protection engineers, and system planning/compliance teams across Transmission & Distribution, Power Generation, Renewable Energy, Data Centers, Industrials, and Mining. Deployed on grounded wye-connected transformers ≥200kV to capture GIC data, harmonics, and VAR loading during GMD events.