Ground-fault and zero-sequence current transformers for protection schemes, switchgear, and monitoring.
Zero-sequence current transformers sense the small residual current that signals a ground fault — encircling all phase conductors so that, under normal balanced conditions, the net flux is near zero and only an imbalance produces an output.
We design and build zero-sequence CTs sized to your conductor bundle and tuned to your protective scheme's sensitivity — built to print in the USA and available as solid-core or split-core for retrofit onto existing conductors.
Building ground-fault protection into your own equipment? We also private-label and contract-manufacture zero-sequence CTs to your spec.
Ground-fault protection built into switchgear line-ups, panelboards, and distribution equipment.
Split-core versions clamp around existing conductors — no need to break the circuit to install.
Sensitive ground-fault detection for motors, drives, and industrial power systems.
Send your window size, sensitivity, and ratio requirements. We'll quote a CT built to your spec and give you a real ship date.
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