High voltage electricity grids (over 60 kV)

ELPRO-7 specialize in maintenance, measurement and research in following domain:

Internal maintenance, measurement and repair of 110kV circuit-breakers together with suspension insulators replacement,
Maintenance and measurement of 110kV power transformers together with sealing and bushing insulators replacement,
Internal maintenance, measurement and repair of 110kV fast disconnectors,
Maintenance and oscillographic measurement of on-load tap changers together with possible damaged parts replacement,
Electric power engineering safety research.