T35 GE Multilin UR Series Three-Phase Transformer Protection Relay

Product Description

The GE Multilin T35 is a transformer protection relay designed to safeguard three‑phase transformers in utility and industrial power systems. It combines differential protection with a wide range of additional protective functions, ensuring reliable operation under diverse system conditions.

This relay supports multiple current transformer (CT) and voltage transformer (VT) inputs, enabling precise monitoring and fault detection. With robust operating temperature tolerance and flexible power supply options, the GE Multilin T35 is suitable for demanding environments where transformer reliability is critical.

Technical Specifications

• Model / Order Number: T35

• Manufacturer: General Electric (GE Multilin)

• Type: Transformer Protection Relay

• Power Supply: 125/250 V AC/DC

• Operating Temperature: ‑40°C to +85°C

• Input Channels:

• Three phase CTs (1A/5A)

• One ground CT (1A/5A)

• Output Channels: Four VTs (120 V / 240 V)

• Output Voltage: 24 VDC to 250 VAC

• Output Current: 10 A

• Protection Functions:

• Differential protection

• Overcurrent protection

• Undervoltage protection

• Earth fault protection

• Additional transformer protection features

Application Scenarios

• Transformer differential protection in utility substations

• Industrial three‑phase transformer monitoring and fault detection

• Systems requiring comprehensive overcurrent, undervoltage, and earth fault protection

FAQ

Q: What type of transformers does the GE Multilin T35 protect?  A: It is designed for three‑phase transformers in utility and industrial applications.

Q: What protection functions are included?  A: Differential, overcurrent, undervoltage, and earth fault protection, among others.

Q: What is the operating temperature range?  A: The relay operates reliably between ‑40°C and +85°C.

Q: What input channels are supported?  A: Three phase CTs (1A/5A) and one ground CT (1A/5A).