Relay protection and automation cabinet (RPA) 35-110 kV

Relay protection and automation for 35-110 kV

Cabinets and devices of relay automation (protection) RPA are used to provide control, automation, protection, monitoring, measurement of parameters and signaling of energy facilities (transformer substations, transformers, autotransformers, generators, generator-transformer units, power transmission lines) with a voltage of 35 - 500 kV of energy systems under construction and modernization, as well as to replace obsolete or failed RPA panels.

The main areas of application of cabinets:

• Protection of power transformers
• Protection of autotransformers
• Protection of tires and tire assemblies
• Protection of generators and generator-transformer units
• Protection, automation and control of power switches
• Protection, automation and control of sectional (busbar) switch
• Protection, automation and control of the bypass switch
• Circuit Breaker Failure Protection (CBFP)
• Local emergency control automation (ALAR, AOPF, AVR, ACHR, etc.)
• Central alarm system
• Protection of shunt rectors
• Protection of static capacitor banks.

Functions and features:

• one RPA and emergency automation panel can combine several types of protection with registration of emergency processes and events, determination of the location of damage, remote control of electrical equipment
• ease of setup and operation, significant reduction in the time required to test microprocessor devices using special tools and data processing programs
• the possibility of conducting research into the operability of design solutions and the correctness of the settings of the relay protection and automation cabinets on the RTDS complex
• the possibility of integration into automated process control systems (automated process control systems) of power facilities in accordance with the IEC 61850 protocol as lower-level devices
• Advanced self-diagnostic system with fault reporting
• Noise immunity that meets the high standards of the latest IEC standards
• control of device operating modes and setting changes
• low power consumption values ​​for the DC power supply circuit and AC current and voltage measuring circuits

Design: