Description:
The transformer rectifiers may be produced with different controls upon request (or according to cathodic protection design). Cooling system in such cathodic protection accessory is "AN" type. The degrees of protection of both air cooled TR and oil cooled transformer rectifier will be upon request. To increase its safety in tense conditions, oil cooled transformer rectifiers are manufactured. In such TRs, the transformer, rectifying bridge and filters will be immersed into oil. The cooling system in such transformer rectifiers is of "ONAN" type.
Applications of Transformer Rectifier (TR):
Air cooled TRs are designed for applications where lower current units are required, generally up to 50 amperes. They are suitable for environments in ambient temperatures up to 55°C whether indoors or outside. The units are generally smaller and of lighter weight than oil cooled transformer rectifiers and are particularly suited to non-hazardous areas where the size and weight of oil cooled TR would make installation prohibitive. Oil cooled transformer rectifiers are ideally suited to heavy duty applications in arduous environments with ambient temperatures up to 55°C, and are available with current ratings of up to 400A.
Standard Features of Transformer Rectifier (TR):
1. We adopt manual voltage regulation to operate the transformer rectifier.
2. With the features of compact design, high reliability and good performance, air cooled TR is easy to use and install, especially used for outdoor self-operation.
3. Full wave silicon diode is used for this cathodic protection accessory.
4. Oil cooled transformer rectifier is featured with weather proof construction, corrosion resistivity and UV protection.
5. The output voltage is manually adjustable via 3*4 position tap changer switches.
6. The transformer rectifier owns minimum maintenance and long operation time.
Specifications of Transformer Rectifier:
DC Output Rating
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Up to 48 Volts/25 Amperes
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Rated Output
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0 to 100%
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Input Power
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200-240 V AC, 50 Hz
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Output Adjustments
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The DC output is adjustable in 25 steps evenly divided over the full range of the rectifier output.
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Input Overload Protection
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Protection from overload on the input is provided by a miniature circuit breaker (MCB) having a thermal overload and magnetic short circuit with backup HRC fuses. The circuit breaker is designed to trip between 101% and 125% of the rated load.
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Output Overload Protection
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Protection from overload on the output is provided by a miniature circuit breaker (MCB) having a thermal overload and magnetic short circuit protection with backup HRC fuses.
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Voltage Surge Protection
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Each silicon diode is protected from voltage surge by means of metal oxide varistor.
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Cooling
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The transformer rectifier is oil immersed and transformers are double wound oil cooled.
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Corroco International Industrial Co., Ltd is a professional manufacturer and supplier of transformer rectifiers in China. We mainly produce air cooled TR and oil cooled transformer rectifier. In addition to this cathodic protection accessory, we also supply brazing pin, CP wire and cable, test station, junction box, reference electrode, etc. With 12 years' production experience, our products have been exported to the United States, Canada, Britain, Germany, Iran, Pakistan, India, Kuwait, Dubai, Saudi Arabia, the Philippines, Malaysia, Singapore, Congo, Turkey, etc.
