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SIPROTEC-7UM85
Generator protection – SIPROTEC 7UM85
- Stock status:
- In stock
- Manufacturer:
- Siemens
- Product code:
- SIPROTEC-7UM85
Main documents
Related products
| Hardware | |
| transformers | 4 current transformers |
| voltage | 0 / 3 voltage transformers |
| Product family | mv digital protection relays power analyzersOther |
| binary inputs | 3 / 7 binary inputs (thresholds configurable using software) |
| Product | |
| binary outputs | 5 / 8 binary outputs (2 changeover) |
| life contact | 1 life contact |
| Pluggable | Pluggable current and voltage terminals. |
| time-overcurrent | Directional time-overcurrent protection, ground (67N) |
| Trip-circuit | Trip-circuit supervision (74TC) |
| Additional Product Information | |
| Forward-power | Forward-power, reverse-power protection (32) |
| Rate-of-voltage | Rate-of-voltage-change protection (27R/59R) |
| Rate-of-frequency | Rate-of-frequency-change protection (81R) |
| programmable | 9 programmable function keys |
| Secondary current transformer values | Secondary current transformer values (1 A / 5 A) settable using DIGSI |
| Binary input | Binary input thresholds settable using DIGSI (3 stages) |
| Pluggable | Pluggable current and voltage terminals |
| frequency | Rate-of-frequency-change protection (81R) |
| voltage | Rate-of-voltage-change protection (27R/59R) |
| reclosing | Automatic reclosing (79) |
| Voltage dependent | Voltage dependent inverse-time overcurrent protection (51V) |
| Directional | Directional intermittent ground fault protection (67Ns) |
Product Description
Siemens
Siemens, a global leader in the electrical and industrial automation sectors, is renowned for its high-quality products and solutions, ranging from electrical equipment and automation systems to energy management and telecommunications technologies.
With a strong focus on innovation, Siemens provides cutting-edge solutions that enhance operational efficiency, sustainability, and productivity across various industries. From advanced circuit breakers and switchgear to smart grid solutions, Siemens continues to shape the future of technology, delivering reliable and energy-efficient products that meet the evolving needs of businesses and industries worldwide.
Reyrolle Siemens protection relays are designed for reliable and efficient safeguarding of electrical distribution systems. Known for their precision, durability, and advanced technology, these relays ensure the highest standards of safety and protection in industrial and commercial applications.
SIPROTEC-7UM85
The SIPROTEC-7UM85 is a highly modular and versatile generator protection relay designed for comprehensive protection and monitoring of generators and power plant units. It combines advanced technology with a wide range of functionalities to ensure reliable and efficient operation of power systems, even in challenging environments.
Key Features and Specifications
- Comprehensive Generator Protection: The SIPROTEC 7UM85 provides all essential protection functions for generators, including reverse power protection, underexcitation protection, and directional stator ground-fault protection. It supports a variety of generator connection types, such as busbar and unit connections.
Advanced Certification for Safety:
- Certified for Explosive Environments: The device is certified under EN 60079-14 and ATEX standards, making it suitable for use in explosive environments.
- SIL2 Certification: The hardware and software are SIL2 certified (EN 61508) for reverse power protection, ensuring high levels of safety and reliability.
Flexible Hardware Configuration:
- Supports up to 16 current transformers and 8 voltage transformers, along with 7 to 15 binary inputs and 9 to 20 binary outputs
- Includes 4 fast measuring transducer inputs (10 V or 20 mA) for accurate and rapid data collection
- The modular design allows for flexible I/O adjustment and expansion using 1/6 expansion modules, enabling customization for various application needs. It is available with large or small displays, or without a display.
- Compact Housing Options: The device is designed to fit housing widths ranging from 1/3 × 19 inches to 2 × 19 inches, making it suitable for different installation environments.
Applications:
1. Protection of Generators in Busbar Connection:
- Provides directional stator ground-fault protection for generators of various power levels.
2. Unit Connection for Larger Generators:
- Includes 100% stator ground fault protection (20 Hz) for enhanced safety and reliability in larger generators.
3. Power Plant Unit Protection:
- Capable of protecting both generators and transformers within a single protection group. It also integrates with other SIPROTEC 5 devices (such as 7UT8x, 7SJ82, 7SJ85, 7SA, SD, SL86) for more complex power plant configurations, including unit connections with generator circuit breakers and auxiliary transformers.
4. Protection of Synchronous Motors:
- Offers motor and generator protection functions, such as underexcitation protection, to safeguard synchronous motors.
5. Power Quality Monitoring:
- Supports the acquisition and recording of power quality data in medium voltage and low voltage networks, ensuring a comprehensive overview of system performance and stability.
Benefits:
- Powerful and Reliable Protection: With its advanced protection functions, the SIPROTEC 7UM85 ensures the **safe and reliable operation** of generators and power plant units across all voltage levels.
- Future-Ready Engineering: The device is compatible with the DIGSI 5 engineering tool, offering future-oriented solutions for protection, control, automation, and monitoring.
- Adaptability and Scalability: Its modular design and flexible I/O structure allow for seamless customization and scalability, making it suitable for a wide range of applications.
- Cybersecurity and Safety Compliance: Equipped with robust cybersecurity measures and safety certifications, ensuring protection against unauthorized access and compliance with industry standards.
The SIPROTEC-7UM85 stands out as a robust, flexible, and future-proof solution for generator protection, providing comprehensive features and adaptability to meet the evolving needs of power plants and industrial applications.
Frequently Asked Questions
Which is Better: Schneider or Siemens Circuit Breakers?
When comparing Schneider and Siemens circuit breakers, both brands offer unique strengths and advantages, making them top choices in the industry.
✅ Both Schneider and Siemens circuit breakers are excellent choices for protecting electrical systems. Schneider excels in versatility and precision engineering, while Siemens is known for its exceptional build quality and innovation. The choice between the two depends on specific needs and preferences, ensuring reliable protection and performance for any electrical system.
What are the three types of miniature circuit breaker?
✅Miniature Circuit Breakers (MCBs) are essential for protecting electrical circuits from overcurrents and short circuits. There are three primary types of MCBs: Type B, Type C, and Type D. Each type is designed to respond to different levels of electrical surges in various settings.ft starters minimize the initial surge of power during startup by gradually increasing the voltage supply. This controlled power-up process prevents the motor from overheating, reducing the risk of temporary shutdowns and significantly extending the lifespan and durability of the motors.
What's the difference between type B and C MCBs?
✅Type B devices are engineered to trip when fault currents reach 3-5 times the rated current (In). For instance, a 10A Type B device will trip at 30-50A. Type C devices, on the other hand, are designed to trip at fault currents of 5-10 times In, which means a 10A device will trip at 50-100A. Lastly, Type D devices are intended to trip at fault currents of 10-20 times In, so a 10A device will trip at 100-200A.
What size is a Schneider 3 pole MCB?
✅ The product dimensions are (W) 54mm x (H) 85mm x (D) 77.5mm, and it weighs 0.31kg. It adheres to the IEC 60529 standard, offering a degree of protection rated at IP20 and IP40 when enclosed.
What is the Full Name of MCBs?
✅MCB Full Form - Miniature Circuit Breaker
✅Miniature Circuit Breaker
The full form of MCB is Miniature Circuit Breaker. An MCB is a type of electronic switch that operates automatically. It detects issues within a circuit by identifying excessive current flow, providing protection by interrupting the circuit to prevent damage.
What Are Miniature Circuit Breakers?
✅ Miniature Circuit Breaker (MCB) - Definition, Types, and Uses
A Miniature Circuit Breaker (MCB) is a safety device equipped with an electro-mechanical mechanism that automatically interrupts the flow of excessive current in a circuit. Unlike fuses, MCBs can be reset and reused without manual replacement, enhancing safety and convenience in electrical systems.
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