Energo-Complex :: Transformers - comprehensive solutions

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It elaborates on the up-to-date issues associated with the preparation of the Energy Transformers Technical Specification. We inaugurate the book series entitled "Energy Transformers Operation" with the present book.

Inspections and repairs: OLTC

Energo-Complex offers service and repairs of on-load tap changers.

Service includes:

oil replacement in diverter switch compartment
cleaning of diverter switch and sleeve
condition control of contacts and springs
checking tap number conformity of head drive
checking and maintenance of angle transmission gears
checking and maintenance of OLTP drive control box
measuring and recording of times
recording of power continuity

If it is necessary to replace subsystems, we offer wide range of spare parts produced by our company. We can also supply reconditioned OLTC head of any type, to minimize switching off period of transformer. We provide necessary amount of oil to refill OLTC and all specialized tools used during technical inspection. The maintenance procedure is followed by measurements and recording of OLTC times and their divergences, conducted by digital diagnostic device.

General repairs include:

demounting and cleaning of tap changer in workshop conditions
replacement of springs
replacement of moving and fixed contacts
assembly and pre-regulation
regulation of switching times and subsystems interaction
mounting of tap changer in a transformer

We also offer repairs of the whole tap changers, including tap selector switching cage.

Inspection of diverter switch type F	Inspection of diverter switch type G	Full renovation of the head (new bushing production and full set of contacts)
Exchange of diverter switch type K4	Disassembly of OLTC

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