Guodian Nanzi PSL641UX line protection device

Guodian Nanzi PSL641UX line protection device

main features

Rich resources and complete functions: high-precision real-time clock system, supporting RS485 IRIG-B 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 the low voltage protection, and the protection principle
Advanced and reliable, more professional; The EMC level of product hardware meets the national standard.
Flexible configuration and strong pertinence: the device plug-in configuration is simple and easy to use, and the outlet can be flexibly configured, which facilitates various application requirements on the site; to the full
Consider the characteristics of iron and steel metallurgical enterprises.
Powerful communication and integrated recording: provide dual Ethernet communication ports or dual RS-485 communication ports, and support IEC60870-5-103 communication protocol
Communication protocol with IEC 61850 (optional); It can query at least 100 trip records, 200 self inspection records, and 200 switching values and
State displacement recording, integrated recording of device operation information; 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
PSL 641UX 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.
1.3.2 Transformer protection and monitoring device
a) PST 641UX transformer differential protection device is applicable to transformers of 6.3 MVA and above capacity or important transformers of industrial enterprises;
b) PST 642UX transformer protection, measurement and control device is applicable to transformers of 6.3 MVA and above capacity or important transformers of industrial enterprises
Backup protection;
c) PST 645UX transformer protection and monitoring device, with overcurrent protection as the main protection, is applicable to the substation/grounding transformer/station transformer.
1.3.3 Capacitor protection, measurement and control device
PSC 641UX capacitor protection and measurement and control device is applicable to the protection and measurement and control of parallel capacitor banks in the substation, with differential pressure (or differential current)
Unbalanced voltage (or current) input.
1.3.4 Reactor protection, measurement and control device
PST 648UX reactor protection and measurement and control device is applicable to the protection and measurement and control of series parallel reactors with voltage levels of 35kV and below.
1.3.5 Automatic switching device of standby power supply
PSP 641UX automatic switching device for standby power supply, which has 7 typical connection modes for standby switching, and is applicable to various wiring methods of different voltage levels

Automatic switching of standby power supply

1 Overview
1.1 Scope of application
The PSL 641UX line protection measurement and control device takes current and voltage protection as the basic configuration, and integrates various measurement and control functions. It is suitable for
Distribution lines with voltage level of 66kV and below. The application fields cover power, water conservancy, transportation, petroleum, chemical, coal, metallurgy and other industries.
1.2 Protection function configuration
a) Three section compound voltage directional blocking overcurrent
b) Two segment directional zero sequence protection and zero sequence alarm
c) Overcurrent acceleration protection and zero sequence acceleration protection
d) Overload protection (alarm or tripping optional)
e) Low cycle load shedding function
f) Low voltage load shedding function
g) Three phase reclosing function;
h) Small current grounding line selection function
i) TV disconnection judgment
1.3 Measurement and control function configuration
a) Current, voltage, power, power factor and other measurements
b) 14 channels of external switching value input remote signal acquisition (larger 20 channels are optional)
c) Circuit breaker position, manual opening and accident remote signaling
d) Remote opening and closing of normal circuit breaker
e) GPS time synchronization input