Siemens SIPROTEC 5 6MU85 Merging Unit
The SIPROTEC 6MU85 Merging Unit is a high-performance solution designed for seamless integration with conventional and non-conventional instrument transformers (LPITs). Engineered for modern substations, it ensures precise data acquisition, IEC 61850 digital protection compatibility, and reliable power system monitoring.
Ideal for electrical engineers, utility companies, and substation automation specialists in Mumbai, the SIPROTEC 6MU85 Merging Unit delivers efficient LPIT integration, fast fault detection, and robust performance. With expert support and local availability, it is the trusted choice for upgrading and maintaining substation infrastructure.
Key Features:
- Compatibility: Works with both conventional and non-conventional instrument transformers (LPITs).
- IEC 61850 Ready: Supports digital communication standards for substation automation.
- Precise Data Acquisition: High-accuracy measurement of current and voltage signals.
- Flexible Integration: Easily integrates into existing substation and protection systems.
- Reliable Performance: Ensures fast and accurate fault detection for enhanced system protection.
- Local Support in Mumbai: Quick delivery, installation assistance, and expert consultation.
Main functions:
- Merging unit
- Bay unit for distributes busbur protection SIPROTEC 7SS85
- Breaker functions
- Backup protection functions
- Additional functions
Communication:
- Up to 4 sampled measured value streams according IEC 61850-9-2 LE or IEC 61869 flexible streams
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.
Housing width:
- 1/3 × 19 inches to 2/1 × 19 inches
Application
Merging Unit for:
- Analog and digital feeder values
- One central merging unit or distributed merging unit for the process data acquisition of a transformer protection schema
- Central protection
- Bay unit for distributed busbar protection
- Fault recorder for process bus
- Centralized synchro-check
Benefits
- Adaptable to multiple CT, VT, LPIT inputs
- Scalable number of binary inputs and outputs
- Expandable by a 2nd row
- Direct “high speed” tripping of circuit breaker < 1 ms
- Collection of additional data (temperature, pressure, tap changer positions, …)
- Cyber Security in accordance with NERC CIP and BDEW Whitepaper requirements
- Highest availability even under extreme environmental conditions by “conformal coating” of electronic boards
- Merging unit functionality can also be added to all modular SIPROTEC 5 protection devices
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