IRT offers comprehensive repair and testing services for most brands of Cathodic Protection transformer rectifiers and junction boxes. IRT stocks an extensive inventory of replacement components for quick turnaround of repairs. Further, replacement/retrofit parts and assemblies are often available for older rectifier models where the original manufacturer’s components are no longer available.
Transformer Rectifier Repair Considerations:
When receiving a transformer rectifier unit in for repair, the IRT repair technologist will complete a general inspection of the unit and complete a dielectric strength (hi-pot) test. Should the customer not require an estimate and if the fault with the rectifier is minimal (i.e. fuse, diode, etc.), the technologist will typically just proceed with the repair as requested and supply the customer with a repair summary. However, should any of the following be found, IRT will contact the customer prior to proceeding with the repair (even if an estimate was not requested by the customer).
- Transformer or overall unit fails dielectric (hi-pot) test.
- Enclosure is structurally degraded (i.e. rusted through, dented, extra holes put in, etc.) to a point where it is obvious it would no longer meet its NEMA or CSA Type rating.
- The transformer rectifier unit has obviously been modified from its originally manufactured state.
- There is obvious severe damage (i.e. burnt panel, burnt components, heat damaged wiring, etc.).
- The unit is deemed unsafe for operator use due to missing barriers/guards, poor/old design, after-sale modifications, etc.
Should the customer still wish to proceed with a repair, they will be advised of the estimated cost of the repair (and for excessive repair estimates, a quote for a replacement rectifier will also be provided). All repair estimates will include not only ensuring functional operation of the rectifier but also ensuring the rectifier is safe for qualified operator use (i.e. replacing or adding barriers if required). Our warranty statement for repairs will be supplied to the customer if they request it. The customer will also be advised, based on our experience, if the rectifier will be able to be re-certified when it is returned to service. Factors that may not allow a re-certification are:
- Rectifier enclosure does not have a CSA or NEMA Type rating label and/or has been modified from its original state or damaged.
- Rectifier does not have a prior electrical approval label or has been modified from its original state.
After repair of the rectifier, the customer will be supplied with a repair summary and the following will be indicated on the customer invoice.
PRODUCT REPAIR DISCLAIMER:
Due to the condition of this product, IRT has determined that it would not meet current electrical approval requirements and has recommended to you the replacement of this product. However, as per your direction, we have repaired this product to an operational condition (to the best of our knowledge) and are only responsible for operation & workmanship of the specific components repaired or replaced. IRT shall not be liable for any other factors.