FAQs

1. The transformer in my installation has a strange noise, a resonance and a noise like its "frying". What should I do?

Switch off the transformer as soon as possible and call in a qualified organisation to analyse the noise in the transformer and carry out tests.

2. The transformer has the DGPT float on the bottom. Is there a problem?

Possible causes:

– Low oil level;
– No vacuum;
– Presence of gases inside the transformer due to possible partial discharges or C.C.

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3. Do I need to maintain the transformers in my plant? If so, what are the advantages?

It is advisable to carry out maintenance on any piece of equipment, from cleaning to retightening and electrical testing, in order to guarantee:

– That the transformer is in compliance;
– Early detection of possible problems such as oil leaks, hot spots (pins or wiring), state of condition (insulation resistance).

4. The transformer has a broken insulator. Is there any risk?

– Oil spill;
– Electrical discharge.

5. I've detected that the transformer has an oil leak. Is there a problem?

Yes, if it’s significant, it requires rapid intervention.

6. In an inspection, the operator E-Redes indicated that the transformer needs to be upgraded in the workshop. What does that mean?

This means that the transformer will have to come into the workshop and generally undergo electrical entry tests, descaling, a drying process, replacement of the insulating oil with new oil, replacement of all the seals, final tests and painting.

7. My company's engine has burnt out. Can it be repaired?

In most cases, yes. It can be repaired using the rewinding process.

8. Do the motors/generators in the installation need to be serviced at my plant? If so, what are the advantages?

It is advisable to carry out maintenance on any piece of equipment, from cleaning to retightening and electrical testing, in order to guarantee:

– Conformity of the motor/generator;
– Early detection of possible problems such as hot spots (pins, wiring or winding), broken components, condition of the motor/generator insulation resistance.