Automatic rectifier for cathodic protection

• Comply with GOST 9.602-2006 «Underground constructions. General corrosion protection requirements».
• Conformance certificate State Russian Standard ROSS.RU.ME86.H00425
• Russian Engineering Supervision approval for application RES 35-00002.
• Patent for invention N2168837 “Ripple Filter”.
• Useful model patent N17664 “Direct voltage converters”.

• Supplied with cooper sulfate reference electrode ESN-MS2 PK
• Have IP21 degree of protection (against contact with current-carrying parts and against environmental attacks), and build-in electronic units IP54 (according to the GOST 14254)
• Present rectifiers are installed instead of overage old rectifiers (for example: instead of TDE-9)
• Protection class from electrical shock – 1 according to the GOST 12.2.007.0
• Compliance with fire safety requirements according to the GOST 12.1.004
• Cables mechanical fastening after their connection to rectifiers
• Leads-in cables inaccessibility for rodents, insects and reptiles penetration into rectifiers during operational process
• Free access to the automatic breaker handle and electric socket while close position of internal door
• Electronic solid-state without mechanical contacts force relay application which rises rectifiers reliability
• Unitized construction: cabinets length, depth and connection dimensions are the same for all rectifiers modifications without dependence of power
• Metal case providing reliable protection of mechanical damages
• Power-polymer light tone cover resistant to external atmosphere and mechanical factors, which arise significantly case corrosion resistance and reduce solar radiation heating
• Increased technological lifespan – up to 100000 hours and service life – up to 20 years

• Reliable stable operation in automatic potential maintenance mode on the construction
• High accuracy of protection potential maintenance - up to ±0,5% and protection current maintenance - up to ±1% (in automatic operating mode)
• Set electric parameters at supply mains voltage variation from 176V to 242V, and operation at mains supply voltage variation within 150V - 250V
• Operating while mains supply voltage changes from 165V to 255V
• Reliable automatic start of work under set mode while supply main voltage fallout and appearance (during power failures)
• Stable operation while load reset and load-on (from 0,1 till 5 of load nominal value)
• Reliable overloads and short circuits in load circuits protection
• Reliable protection from atmospheric (lightning) surges on the supply voltage and load inputs side
• Possibility of output voltage stepped extension up to 2Unom under nominal output current 0.5Inom
• Output voltage, output current, protection potential measuring by means of built-in measuring devices
• Time calculation of set protection potential availability on the construction
• Connection of two-wire (L, N) and three-wire (L, N, PE) mains supply cable
• Economical power consumption because of high energy datum: coefficient of efficiency and power factor (cosφ);
• Active energy accumulative metering via built-in electricity meter, accuracy class 1,0 single rate (modification V-OPE-M5-C1…)
• Multitariff energy metering (modification V-OPE-M5-C3…);
• Low level of radio interferences, not higher than values stated in GOST R 51522-99
• Continuous work without preventive technical maintenance during 6 months
• Rectifiers adapted to main telemechanics systems are used on facilities of:
  JSC “GAZPROM”, JSV AK “Transneft”, JSC AK “Transnefteproduct”, regional distribution organizations: “UNK-TM”, “Magistral2”, “STN-3000”, “SupeRTU4”, “SKAT, “ELSI-200”, “TELUR” and other
• Remote control functions are realized:
• Telemetering of:
  • Rectifier output voltage;
  • Rectifier output current;
  • Potential on the construction;
  • Energy consumed by rectifier (modification V-OPE-M5-C1…, V-OPE-M5-C3…).
• Teleregulation via:
  • Remote set of protection potential (in protection potential maintenance automatic mode “AVT POT”);
  • Remote set of protective current (in protective current stabilization automatic mode “AVT TOK”);
  • Rectifier output voltage remote set (in output voltage manual set mode).
• Teleoperation of:
  • Rectifier disconnection and further connection
• Telesignalization of:
  • Unauthorized access to rectifier
  • Voltage fallout of supply main
  • Rectifier fault
  • Metering circuits opening due to reference electrode or underground construction
  • Remote control mode

• Automatic maintenance of cumulative protection potential at the preset level
• Automatic stabilization and maintenance of protection current to the construction at the preset level
• Manual set of rectifier output voltage and protective current to the construction

• Ambient temperature range: -45°C till +45°C
• Relative humidity: up to 98% (at temperature +25°C)
• Atmosphere Types I, II
• Atmospheric pressure (86,6-106,7) kPa (from 650 to 800 mm Hg)
• Outdoor installation (installation category – 1)
• Continuous mode of operation