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Automatic rectifier for cathodic protection
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V-OPE-Ì7 product line  |
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| TOR 3415-014-22136119-2008 |
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Automatic rectifiers product line B are designed for efficient electrochemical (cathodic) protection of underground metal constructions (gas pipelines, oil pipelines, products pipelines, storage tanks, utilities constructions and other similar constructions from electrochemical (ground) corrosion. Build-in rectifiers are designed for installation in complete devices cases, in high voltage cathodic protection devices, in low voltage cathodic protection devices and in other coverings of different type (installation category – 2)
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- Comply with GOST R 511164-98 “Steel pipelines. General corrosion protection requirements”
- 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 converter”
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Different activity types enterprises having metal underground constructions: gas pipelines, oil-pipe lines, product pipes of line and non-line purposes, other pipe lines for different purposes, public utilities constructions, storage-tanks and other similar constructions, located in different soils including soils with high aggressivity and in zones of stray current influence caused by rail electric transport, power supply, power lines, natural effects.
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Distinctive features of rectifiers V-OPE-M7 from V-OPE-M5:
- Output voltage and output (protective) current pulsation level is less than 3% which complies with GOST R 51164-98
- Additional meter is installed for supply main voltage availability time metering on the rectifier
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- 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
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- 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-M7-C1…)
- Multitariff energy metering (modification V-OPE-M7-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-M7-C1…, V-OPE-M7-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
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- 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
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- 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
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