Rectifier V-OPE-M4

Rectifier V-OPE-M4

Purpose

• Enterprises of oil, gas, chemical, energy and other industrial complexes with a network of off-main pipelines (gas pipelines, oil pipelines, products pipelines, etc.), storage reservoirs, other underground metal utilities and structures.
• Municipal engineering organizations servicing the utilities of settlements (water pipelines, power and communication cables with metal sheath, etc.).
• Departments of electrified railways maintenance, municipal services of subway and tram transport operation.
• Different organization having metal underground utilities and structures in the grounds with high corrosiveness.

Features

• Rectifiers are produced in climatic version U location category 1 and designed for outside installation.
• Rectifiers provide an opportunity of continuous operation without preventive maintenance within not less than 6 months.
• Rectifier is adapted to the main telemechanics systems applied at the facilities of GAZPROM JSC, Transneft JSC, Transnefteprodukt JSC, regional gas-distributing organizations (GDO): “UKN-TM”, “Magistral 2”, “STN-3000”, “SupeRTU4”, “SKAT”, “ELSI-2000”, “TELUR”.
• Rectifier has a low radio interference level not affecting any other electrotechnical devices, communication devices, radio and TV broadcasting facilities permitting to use it in the residential zones of the settlements the values specified by GOST R 51522-99.
• The useful operating life is increased to 100 000 hours, the service life – up to 20 years.

Operation principle

The rectifiers provide:

• Automatic switching-in into operation in the set mode in case of failure or reappearance of the supply main voltage (in cases of electric energy failure);
• Stable operation in case of load drop and rise;
• Efficient protection against overloads and short circuits in the load circuit;
• Efficient protection against atmospheric (lightning) overvoltages from the inputs of the supply voltage and load;
• Drainage of the ground currents from the protected structures to the anode ground electrode (current drainage) in case of absence of the supply main voltage;
• Economical power consumption due to high energy indices and accumulative accounting of electric energy by the built-in electron meter;
• Electrical safety of the maintenance personnel due to application of the residual current device (RCD) automatically disconnecting the rectifier from the supply main in case of an accidental contact with the current-carrying circuits.
• Control of output voltage and load current by means of the built-in measuring devices.
• Control of the time of supply main voltage delivery to the rectifier and time when the rectifier is ON.

Operation conditions

• Stable operation in the climatic zones in a wide range of the environment temperatures: from -45°С to +45°С.