Guodian Nanzi PSL641U line protection
1.1 Scope of application
PS 640U series protection, measurement and control device (industrial version) is a protection, measurement and control integrated device developed by Guodian Nanjing Automation Co., Ltd. for petrochemical, iron and steel, metallurgy and other industries. It is applicable to industrial power systems with non direct grounding or small resistance grounding systems with voltage levels below 110kV.
PS 640U series protection, measurement and control device (industrial version) is based on the EDP protection platform independently developed by Guodian Nanzi. It adopts a number of innovative technologies and integrates protection, control, measurement, communication and monitoring functions. It is rich in resources, complete in configuration, flexible and convenient in operation and maintenance, high in stability, reliability and security. Its overall technical performance indicators are at the domestic level, which is conducive to the safety Stable and economic operation provides a solid foundation.
1.2 Main features
Rich resources and complete functions: high-precision real-time clock system, supporting pulse or IRIG-B mode GPS time synchronization; Flexible networking mode and protocol configuration; It can provide complete protection, measurement and control functions.
Mature technology and high reliability: apply the high voltage protection technology and idea of Guodian Nanzi International to low voltage protection, with advanced and reliable protection principle and stronger professionalism; The EMC level of product hardware meets the national standard. Flexible configuration and strong pertinence: the device plug-in has a variety of options, and the outlet can be flexibly configured, which facilitates various application requirements on the site.
Fully consider the characteristics of iron and steel metallurgical enterprises, provide 4-20mA and logic interlocking functions, and can cooperate with DCS system or industrial system. Powerful communication and integrated recording: provide Ethernet communication port and RS-485 communication port, and support Ethernet communication protocol, special IEC60870-5-103 communication protocol and IEC 61850 communication protocol. It can query at least 100 trip records, 200 self inspection records, and later 200 switching value and state displacement records, and record the device operation information in an integrated way; It can record 8~100 reports and displacement mark sets.
1.3 Main models and functions
This series of products includes the following devices:
1.3.1 Line protection measurement and control device
a. PSL 641U line protection and measurement and control device, with overcurrent protection as the main protection, is applicable to the protection and measurement and control of transmission or distribution lines.
b. PSL 642U line protection measurement and control device, including interphase distance protection, is suitable for important lines.
c. PSL 643U bus coupler protection and measurement and control device is applicable to bus coupler protection and measurement and control of voltage level below 110kV.
d. PSL 646U (including basic type and D-type configuration) line protection measurement and control device, basic type including optical fiber current differential protection, applicable to important short lines; Type D configuration is applicable to optical fiber differential protection of line transformer unit of double coil transformer with voltage level of 35kV and below.
Guodian Nanzi PSL641U line protection
