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Siemens SIPROTEC 5 7SA87 Distance Protection Relay
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Technical Specifications
Main function: Distance protection
Interoperability: SIPROTEC 5 and 4 line protection devices
Tripping: 1-pole & 3-pole, minimum 9 ms
Inputs/Outputs: 12 standard variants; 4/4 or 8/8 current/voltage transformers; 5–31 binary inputs; 8–46 binary outputs
Hardware: Flexible I/O quantity within SIPROTEC 5 modular system
Housing width: 1/3 × 19" to 2/1 × 19"
Standard: Conformal Coating
Application: Detection & selective 1-/3-pole tripping; ground fault detection; backup protection; serial communication; Phasor Measurement Unit (PMU)
Location: Mumbai & India, through authorized Siemens suppliers
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