Resistor polarized drain “Energomera” DRP-M1

Resistor polarized drain “Energomera” DRP-M1

Purpose

• Protection against electrochemical corrosion of the underground metal structures in the zone of effect of the ground currents appearing from the DC rail electric transport (electrified railways, tram, subway, etc.).

Features

• Do not require an electric power source.
• The cyclic duration factor and rated current flow is significantly increased, as well as thermal characteristics of the drains.
• Low voltage of startup of the drains is provided.
• The diode-resistor sections are paralleled to increase reliability of drains operation.
• Efficient protection against atmospheric overvoltages is installed.
• There is an opportunity of step establishment of the peak current of the drains:

Operation conditions

• Stable operation in the climatic zones in the wide range of environment temperatures from -45?C to +45?C.