The Pioneer in Transformer Monitoring
ZTZ on-line transformer monitoring systems help utility asset managers by detecting electrical nuances which are known to be indicators of near-term failure. Over 5000 ZTZ systems are in service world-wide. Since ZTZ was founded in 1997, hundreds of transformer bushings with symptoms of failure have been detected and taken out of service before catastrophic failure occurred. All ZTZ systems are hand-built in USA and carry a lifetime warranty. ZTZ Services is a Veteran Owned Business.
ZTZ Services is Trusted by the World's Largest Power Companies
ZTZ Services has pioneered the development of on-line transformer bushing monitoring since the 1970s. Our transformer monitoring systems have been further developed and refined ever since. ZTZ monitoring systems use exclusive algorithms and methods to determine bushing health with the highest confidence level using only one connection to the bushing C1 test tap. All ZTZ monitoring systems carry a lifetime warranty. We offer full turnkey installation services.
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MTE Hydrocal DGA Monitor
The Hydrocal on-line Dissolved Gas Analyzer for oil-filled power transformers is produced by MTE in Germany. There are eight models of Hydrocal in the product range, each with a different number of individual measurements for key fault gasses. The basic model (1001+) measures moisture, Hydrogen, and Carbon Monoxide and four other hydrocarbons as a composite measurement. The top of the range (1009) gives nine individual key gas measurements of concentration. There is also a portable field test set for ten key fault gasses in the range.The Hydrocal is well known for reliability, accuracy, and small size. No consumable gasses or products are used for operation of the Hydrocal. The combination of ZTZ transformer bushing monitor and Hydrocal makes a fully-featured transformer monitoring system and all aspects of the system are brought to common management dashboard software produced by ZTZ. ZTZ Services is the official distributor and service center for Hydrocal in North America.
The Network Transformer Monitor is designed for underground network distribution transformers. It does not come in contact with the oil, it is threaded into the top of the transformer, accessing the key fault gasses in the head space. Simple to install, it is powered from the control power within the cubicle and can share communications or alarm contacts with the network protector. The NTM-1000 detects moisture, pressure, hydrogen and a composite measurement of four key fault hydrocarbon gasses.