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  • STAPERM Reference Electrodes
    • Permanent
      • Copper-Copper Sulphate
      • Zinc-Zinc Sulphate
      • Silver- Silver Chloride
    • Permanent with Coupons
      • Copper -Copper Sulphate
      • Silver-Silver Chloride
      • Zinc-Zinc Sulphate
    • Portable
      • Copper-Copper Sulphate
      • Zinc-Zinc Sulphate
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  • AC Mitigation/Coupons
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  • Switchmode Cathodic Protection Rectifiers
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  • Switchmode Cathodic Protection Rectifiers
  • Switchmode Cathodic Protection Rectifiers
  • Switchmode Cathodic Protection Rectifiers
  • Switchmode Cathodic Protection Rectifiers Switchmode Cathodic Protection Rectifiers Switchmode Cathodic Protection Rectifiers Switchmode Cathodic Protection Rectifiers

    Switchmode Cathodic Protection Rectifiers

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    Product Description

    Switchmode Rectifiers

     

    Switchmode rectifiers are known for their quality, efficiency, service life and workmanship.

    Switchmode rectifiers have been used for many years and this demonstrates its quality service it provides and many extra features can be installed in order to fit the specific Cathodic Protection need. The switchmode rectifier is a newer technology and is significantly more advanced than transformer rectifiers utilising high frequency switching devices resulting in far greater feedback responsiveness, efficiency and service life.

     

    Switchmode Cathodic Protection rectifiers can typically be used with corrosion protection on pipelines, tank farms and other vulnerable metals, that are at risk of corrosion, where impressed DC currents are required.

     

    Benefits

     
    • High efficiency of up to 95%
    • Significantly lower cost than a Transformer rectifier
    •  ± Half the size of a Transformer rectifier
    • Single phase and more efficient rectification across the output range
    • Light weight design
    • 30% less operating temperature than a Transformer rectifier
    •  Output DC ripple is less than 200mV
    • Integrated remote monitoring
     

    Features

     
    • Automatic PID output feedback control (Constant voltage , constant current, constant reference potential
      and iterative instant off)
    • Heavy duty power factor correction rectification
    •  Single phase wide range voltage input 90– 260 VAC
    • Input frequency range 47– 63 Hz
    • High frequency switching for maximum efficiency of up to 95%
    • Digital metering with backlight for voltage, current and reference potential
     
     
     

    *Please see technical datasheet for all products specifications

     
     
     

    Switchmode Ordering Codes

     

    Switchmode Designs are according to power ratings. We have 3 standard switchmode power ratings: 150W, 300W and 1500W. Within these power ratings, switchmodes have different maximum output voltages: 12V. 24V and 48V. Their maximum current varies accordingly.

    Use the ordering code in the table provided below to select your switchmode rating.

     

     
    SMR SIDE VIEW WITH DOOR
     
    Ordering Code Power Output Voltage Output Current
    RECS-12-12, 5 150W 12V 12.5A
    RECS-24-6,25 150W 24V 6.25A
    RECS-48-3,125 150W 48V 3.125A
    RECS-12-25 300W 12V 25A
    RECS-24-12,5 300W 24V 12.5A
    RECS-48-6,25 300W 48V 6.25A
    RECS-12-125 1500W 12V 125A
    RECS-24-63 1500W 24V 63A
    RECS-48-32 1500W 48V 32A
     

     
    SMR FRONT VIEW WITH DOOR
     
     
    • GSM Module (For GSM module add G after your switchmode ordering code)

    Optional GSM Modem using RS232 for telementry. Modem can send instantaneous values of output voltage, current and reference potential measurement, 24 Hour period logged values, 8 bit user defined alarms including phase failure , circuit breaker and fuse rupture. Modem can also relay present control mode and has the ability to change control mode, set up parameters and boundary values. This requires a registered sim card.

    • Manual Control (For manual control add M after your switchmode ordering code)

    This is a feature where the user can switch over from automatic control to manual output voltage using a potentiometer style knob accessible from the inner door.

    *For other options please contact us, these include and are not limited to:

    Current sharing

    Switchmodes can be arranged in parallel in current sharing mode for special high power applications up to 4200W

    Replacement parts

    Lightning equipment, fuses, LEDs, metering equipment, electronic PC boards, electrical components etc.

     
     

    Switchmode Enclosure Details

     
     

    Our Standard enclosures are made from a grade of stainless steel called 3CR12 (also designated as UNS S40977/ S41003 or 1,4003) This material is a chromium fabricated by modifying the properties of grade 409 steel. It is resistive to mild corrosion, wet abrasion and it is easy to weld and punch.

    Switchmodes come in 3 standard enclosure sizes depending on the power output. The enclosures are 0, 063 inches thick with a grey (RAL7032) powder coated finish. Ingression is IP 65.

     

     

     

    Switchmode
    Type
    Enclosure 1
    Dimensions
    Enclosure 2
    Dimensions
    Glass Door
    Viewing Area
    Mounting
    Plate
    Internal
    Door
    Fit into
    Enclosure 1
    RECS-12-12, 5
    RECS-24-6,25
    RECS-48-3,125
    RECS-12-25
    RECS-24-12,5
    RECS-48-6,25
    600 x 500
    x 220 mm
      470 x 320
    mm
    530 – 430
    mm
    520 – 430
    mm
    Fit into
    Enclosure 2
    RECS-12-125
    RECS-24-63
    RECS-48-32

      700 x 600 
    x 270 mm
    570 x 420 
    mm
    630 – 530
    mm
    620 x 530
    mm
     
     
     

    Under special request, we can modify or customize cabinets suited to the client.

    • Enclosure 304 Stainless steel. Mild steel and Poly-carbonate enclosures can be requested
    • Weather proof according to IP ratings– IP 54, IP 55, IP 65, IP 66, IP 68
    • Colors to select from (Electric orange, Canary yellow etc.)
     

     

    Typical Thermodynamics

     

    Switchmodes, at their optimum efficiency, perform well in small enclosures within ambient temperatures of up to 158°F (70°C). A heat run was conducted in an enclosure with no ventilation at full load and over a period of 11 hours. The inside enclosure temperature was recorded against the ambient temperature at a sampling rate of every 10 seconds.

    Starting the heat run at an ambient temperature of 50°F (10°C), the enclosure temperature exponentially increases with time due to its rate of heat dissipation. The rate of heat dissipation tends to a constant temperature value over 10 hours, this maximum cabinet temperature is 122°F (50°c) and is uniform throughout the switchmode enclosure. After 10 hours the ambient temperature decreases and then the enclosure temperature decreases accordingly as a result.

    The thermodynamics of the enclosure is internally stable and is now being influenced only by external variables.

     

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