TRACTION SUBSTATION RECTIFIER FOR MAINLINE RAILWAY

Natural cooling ensures high reliability and overload capacity, maintenance is not required in the course of operation. Use of a common heatsink on two parallel diodes is a block minimizes quantity of buses and transitional contacts leads to reduced losses. Assembly includes a custom-made clamping mechanism allowing quick replacement of diodes without the need of neither removing the power equipment nor using special tools.

Design features:

• In standard design the rectifier is manufactured to a 12-pulse current rectification circuit formed by subsequent connection of two bridges. The rectifier can be also assembled according to 6-pulse rectifier circuit.
• Each diode is provided with the conductivity diagnostic circuit.
• The rectifier is fitted with microprocessor protection and diagnostic system based on the TET ESTEL designed and manufactured controller and is equipped with operator’s control panel with a large LCD display.
• The microprocessor control system equipped with an oscilloscope allows to perform continuous monitoring of the unit parameters, e.g. current, voltage, diode conductivity, temperature, waveform etc. Parameter values are saved in the unit’s internal memory and can be retrieved later for analysis. Control system generates alarm signals in case of faults, if they occur, and  forwards them according to the process protocol.
• Designed to comply with RoHS and REACH requirements.