Contact Person: IVY ZHANG
Tel: +86 022 84995960
Mobile Phone: +86 13902042869
E-mail: info@ot-automation.com
SKype: IVY ZHANG-CHINA ONE-TONE
Whatsapp: +86 13902042869
Add: Room 103-27, No. 3 Xianggang Street, Jinnan Economic Development Zone, Tianjin, China
The SIPROTEC 4 7SJ61 relays can be used for line protection of high and medium voltage networks with earthed (grounded), low-resistance earthed, isolated or compensated neutral point. When protecting motors, the SIPROTEC 4 7SJ61 is suitable for asynchronous machines of all sizes. The relay performs all functions of backup protection supplementary to transformer differential protection
The relay provides control of the circuitbreaker, further switching devices and automation functions. The integrated programmable logic (CFC) allows the user to implement their own functions, e. g. for the automation of switchgear (interlocking). The user is also allowed to generate user-defined messages. The flexible communication interfaces are open for modern communication architectures with control systems.