Trip circuit protection relay SIPROTEC 7VK87

for transformerspanel-mountconfigurable

Modular SIPROTEC 7VK87 circuit breaker management device for reliable circuit-breaker management. With its modular structure, flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 7VK87 device offers future-oriented solutions protection, control, automation, monitoring and PQ basic. Main function: •Automatic reclosing function, synchrocheck, circuit-breaker failure protection Tripping: •1-pole and 3-pole or 3-pole 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 flexibility: •Flexibly adjustable I/O quantity structure within the scope of the SIPROTEC 5 modular system Width of housing: •1/3 × 19 inches to 2/1 × 19 inches DIGSI 5 permits all functions to be configured and combined as required. •1-pole automatic reclosing function with detection secondary arc •Circuit-breaker failure protection for 1-pole and 3-pole tripping •Point-on- wave switching •Control, synchrocheck and switchgear interlocking protection •Voltage controller for transformers