Siemens SIPROTEC 5 7UM85 Motor Protection Relay
The 7UM85 Generator & Motor Protection Relay from SIPROTEC is a high-performance solution designed for reliable protection of generators, synchronous motors, and power plant units. Featuring expandable I/O and ATEX Category 5 certification, this relay ensures precise monitoring and fast fault response, making it ideal for industrial applications.
Key Features & Benefits:
- Expandable I/O: Flexible configuration to adapt to complex industrial systems.
- ATEX Category 5 Certified: Ensures safety and compliance in hazardous environments.
- Fast Fault Detection: Precise monitoring for rapid response to system faults.
- Local Availability: Supplied by trusted Mumbai distributors for quick delivery and support.
- Seamless Integration: Easy to integrate into existing or new motor and generator protection setups.
Features
Main function:
- Typical generator protection functions
- Certification for use in explosive environments (EN 60079-14 or Verband der Elektrotechnik, Elektronik und Informationstechnik 0165, Part 1, ATEX)
Inputs and outputs:
5 predefined standard variants with
- up to 16 current transformers and
- 8 voltage transformers
- 7 to 15 binary inputs
- 9 to 20 binary outputs
- 4 fast measuring transducer inputs (10 V or 20 mA)
Hardware flexibility:
- Flexibly adjustable and expandable I/O quantity structure within the scope of the modular SIPROTEC 5 system; 1/6 expansion modules can be added, available with large or small display, or without display
Width of housing:
- 1/3 × 19 inches to 2 × 19 inches
Application
- Protection of generators in unit connection of different power (using the 100% stator ground fault (20 Hz) with larger generators)
- Protection of power plant units with one device per protection group. In the generator transformer variant, the 7UM85
implements both generator and transformer protection. - In more complex power plant units (unit connection with generator circuit breaker and several auxiliary transformers),
additional SIPROTEC 5 devices are used, – for example, 7UT8x, 7SJ82 or 7SJ85 and 7SA, SD, SL86, at the upper-voltage side of the generator transformer. - Using motor and generator protection functions (underexcitation protection, for example)
Available from trusted Mumbai suppliers, the 7UM85 relay combines advanced technical capabilities with ease of integration, providing operators with complete control and safety for critical motor and generator systems. Whether you are upgrading existing equipment or implementing a new protection system, this relay delivers robust performance, compliance, and local availability for fast delivery and support.
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