Siemens SIPROTEC 5 7SA86 Distance Protection Relay
The SIPROTEC 7SA86 Distance Protection Relay from Siemens is a high-performance solution designed for reliable line and substation protection in modern power systems. Featuring 4xI 4xV inputs, expandable hardware, and ultra-fast 3-pole tripping (as low as 9 ms), it delivers superior protection for utilities, industrial networks, and power plants.
Available through trusted Siemens suppliers and dealers in Mumbai, the SIPROTEC 7SA86 ensures advanced fault detection, accurate tripping, and flexible modular configurations to suit diverse application needs. Whether for transmission lines, substations, or industrial power distribution, this relay provides future-ready protection with scalability and dependable performance.
Main function:
- Distance protection
- Interoperability of SIPROTEC 5 and SIPROTEC 4 line protection devices
Tripping:
- 3-pole, minimum tripping time: 9 ms
Inputs and outputs:
12 predefined standard variants with
- 4/4 or 8/8 current transformers / voltage transformers,
- 5 to 31 binary inputs,
- 8 to 46 binary outputs
Hardware quantity structure:
- Flexibly adjustable I/O quantity structure within the scope of the SIPROTEC 5 modular system
Housing width:
- 1/3 × 19 inches to 2/1 × 19 inches
Application
- Detection and selective 3-pole tripping of short circuits in electrical equipment of star networks, lines with infeed at one or two ends, parallel lines and open-circuited or closed ring systems of all voltage levels
- Detection of ground faults in isolated or arc-suppression-coil-ground power systems in star, ring, or meshed arrangement
- Backup protection for differential protection devices of all kind for lines, transformers, generators, motors, and busbars
- Serial protection communication with SIPROTEC 5 and SIPROTEC 4 devices over different distances and physical media, such as optical fiber, two-wire connections, and communication networks
- Phasor Measurement Unit (PMU)
Choose the SIPROTEC 5 7SA86 Distance Protection Relay in Mumbai for genuine Siemens quality, expert support, and fast delivery—ensuring maximum system reliability and efficiency.
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