ZTZ

The Pioneer in Transformer Monitoring

ZTZ engineers have been at the forefront of substation transformer bushing monitoring since 1972. ZTZ’s principal founders developed the fundamental science and instrumentation which detects incipient problems in high-voltage bushings used on large power transformers. ZTZ is the center of competency in this niche. Recently, ZTZ has added partial discharge detection and analysis, high-voltage underground cable monitoring above 345kV, pothead monitoring above 345kV, and a specialty fault gas monitoring system for underground network transformers.

ZTZ maintains an expert field service group for commissioning and service of all ZTZ bushing monitoring systems, bushing monitor systems with PD detection, on-line continuous dissolved gas analysis systems (DGAs), and monitors for underground network transformers.

ZTZ holds an annual users group meeting in February on Miami Beach. During this two-day event, users and other experts present reports of the numerous transformer “saves” and avoided failures through the use of ZTZ systems. Everybody gains further knowledge and experience on these topics while enjoying the beach and excellent weather.