Transformer Rectifier
pml design and manufacture a range of transformer rectifier units for the cathodic protection industry.
Oil or Air cooled Units can be supplied as follows:
- Single or Three Phase ac input
- Constant Voltage, Potential Controlled or Constant Current
- Single or multi channel outputs
- Thyristor, Variac, or Step dc output control:
- Analogue or digital meters
Enclosures (Protection up to IP65)
- Mild steel
- Stainless steel
- GRP
All units are fully inspected and tested before leaving our workshop. Test procedures include:
- Circuit connection checks
- Full load operation
- Heat run tests for a minimum of 12 hours
- High voltage insulation resistance tests
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Optional Features to meet client specifications:
- Current Interrupters
- Heaters
- Alarms
- Watt or Hour meters
Coating
- Polyester powder
- Polyurethane
- Epoxy
- Zinc flame spray
- To suit client specification
Mounting
- Plinth
- Frame
- Wall
- Inside large GRP cabinets
- Pole
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Junction Boxes
pml produce a wide range of bespoke junction boxes for cathodic protection applications including Negative distribution, anode termination, current control and bonding.
Enclosures
- Coated or galvanised steel
- Stainless steel
- Aluminium
- Fibreglass
- GRP
Protection up to IP65 is available and EExd and EExe rated products are also available for hazardous area locations.
Internal panels are manufactured and tested in the pml workshop |