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The GE Multilin T35 is a comprehensive three-phase transformer management relay engineered for the primary protection and monitoring of power transformer assets. This digital protection device integrates advanced protection algorithms with flexible automation capabilities, enabling high-speed fault detection and dependable operation in demanding electrical distribution environments.
Designed as part of the GE Multilin UR Series, the T35 provides sophisticated transformer differential protection, harmonic restraint, thermal monitoring, and event recording. These capabilities allow operators to maintain system stability while protecting valuable transformer infrastructure in both utility and industrial power networks.
| Parameter | Specification |
|---|---|
| Device Model | GE Multilin T35 |
| Auxiliary Power Input | 125 / 250 V AC/DC |
| Operating Temperature Range | -40°C to +85°C |
| Current Input Channels | 3 × 1A / 5A Phase CTs + 1 × 1A / 5A Ground CT |
| Voltage Input Channels | 4 × 120V / 240V VTs |
| Output Relay Ratings | 24V DC to 250V AC |
The GE Multilin T35 is widely deployed in utility substations and industrial power systems where reliable transformer protection is critical. It is specifically designed to safeguard medium-to-large power transformers and supports advanced protection schemes such as transformer differential protection, harmonic blocking, and thermal overload monitoring.
By integrating multiple protection and monitoring functions into a single platform, the relay provides operators with a comprehensive view of transformer health, helping to minimize downtime and prevent catastrophic equipment failures.
What is the primary function of the T35 relay?
The GE Multilin T35 serves as a dedicated transformer protection relay. It processes CT and VT inputs to detect internal faults, abnormal current conditions, and thermal overload situations, enabling fast and reliable tripping to protect critical power assets.
Is the device suitable for extreme outdoor environments?
Yes. With an operating temperature range of -40°C to +85°C, the relay is engineered to operate reliably in harsh industrial and substation environments, including installations without climate-controlled enclosures.