



The ABB 87TS50 is an advanced transformer protection relay designed to provide essential fault protection for power transformers in a variety of industrial, power distribution, and automation applications. With its comprehensive protection features, including differential protection, overcurrent protection, and earth fault monitoring, the 87TS50 ensures that transformers are effectively safeguarded against electrical faults, minimizing downtime and extending operational lifespan. The relay is equipped with high-speed fault detection capabilities and offers robust communication options, making it an ideal solution for mission-critical transformer protection in modern electrical systems.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | ABB 87TS50 |
| Module Type | Transformer Protection Relay |
| Function | Differential, Overcurrent, Earth Fault Protection |
| Input Voltage | 24V DC (nominal) |
| Protection Type | Differential, Overcurrent, Earth Fault, Temperature Monitoring |
| Communication Protocol | Modbus RTU, IEC 61850 |
| Operating Temperature | -20°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Dimensions | 300mm x 220mm x 150mm |
| Weight | 2.0 kg |
| Mounting Type | Panel Mount |
| Relay Output | Digital Outputs (NO/NC) |
Recommended Related Models
For those requiring additional features or different configurations, the following ABB protection relays may be suitable:
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ABB 87TS52 – A higher-capacity transformer protection relay with enhanced features for larger and more complex systems.
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ABB 87T-EL – Specifically designed for oil-filled transformers, providing specialized protection.
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ABB 87R01 – A versatile relay for general transformer protection in mid-sized electrical systems.
Popular Allen Bradley Models
For users considering alternatives from Allen Bradley, these models are also widely used in transformer protection:
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Allen Bradley 1606-XL Transformer Protection Relay – A reliable transformer protection solution for both overcurrent and differential protection.
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Allen Bradley 1756-IA16 – A modular protection relay used for transformer protection and fault detection in industrial environments.