

Product Description
Product Overview
The General Electric HD-T35 is a Digital Transformer Protection Relay from the GE Multilin T35 Series, designed to provide cost-effective, high-speed differential protection for power transformers with up to six windings. Manufactured by GE, now part of GE Vernova’s Grid Solutions, this relay offers primary and backup protection, including phase and ground overcurrent functions, for a variety of transformer applications in industrial and utility settings. It is engineered for use in power generation, transmission, distribution, and renewable energy systems, featuring advanced automation and communication capabilities for seamless integration into modern control architectures.
Technical Information
Item | Specifications |
---|---|
Manufacturer | General Electric (GE) / GE Vernova |
Series | Multilin T35 |
Model/Part Number | HD-T35 |
Description | Digital Transformer Protection Relay |
Protection Functions | Differential, Phase Overcurrent, Ground Overcurrent |
Transformer Windings | Up to 6 sets of current inputs |
Power Supply | 125-250 V AC/DC (typical for T35 series) |
Ethernet Ports | Up to 3 independent 100 Mbps ports |
Communication Protocols | IEC 61850, Modbus RTU/TCP, DNP 3.0, IEEE 1588 |
Operating Temperature | -40 °C to +60 °C (-40 °F to +140 °F), typical for T35 series |