Pioneering the future of power testing and monitoring

CONFIGURABLE COMPLEX TRANSFORMER MONITORING SYSTEMS

PD monitoring

Partial discharge monitoring offers the fastest response to detect insulation imperfections or faults in windings insulation ,oil and bushings which result with free electrons movement inside the affected area. With this technology voids, insulation degradation and weak spots can be identified, trended and constantly monitored.

DGA monitoring

Dissolved gas analysis in the transformer has been used for decades as a reliable tool for indication and prevention of faults. According to international standards for maintenance of transformers and in accordance with the rulebook for testing of HV equipment this analysis is mandatory. DGA is a powerful diagnostic technique for monitoring some of the possible faults in the transformer and trend the progress

Bushing leakage current and HF PD monitoring with fault localization and tan delta

Monitoring gives information on the fault position inside of the transformer by measuring the time arrival delay to 3 separate sensors and plotting the signal in 3D transformer model . This monitoring saves time in testing after protection tripping as it gives all the relevant data of the transformer and bushings state so users can make right and fast decision in case of protection tripping. Our main PD monitoring advantage is advanced noise filtering which gives reliable information in noisy substations and gives less fault alarms.

Core laminations and winding structures

Transformer windings are the most expensive part of the Power Transformer. The transformer windings and core laminations in service can be damaged from craftmanship imperfections, short circuit currents. Our transformer monitoring system monitors 3 key parameters for addressing such problems in the earliest phase.

Chemical properties and oil aging monitoring

Ever since the beginning of transformers use the transformer oil breakdown voltage testing has been used as proven method for evaluating the dielectric properties of the transformer oil. Our revolutionary sensor measures and monitors breakdown voltage and tan delta directly mounted on transformer tank. With this chemical properties and oil contamination can be identified in very early stage before sludge formation takes place. This reduces significant service costs as sludge

OLTC DGA monitoring

The DGA units incipient stage, before they develop into major faults and result in the outage of the transformer. The conventional BUCHHOLZ RELAY is universally used in transformers to protect against severe damages. However, its limitation is that enough gas must be generated first to saturate the oil fully and then to come out or there should be a gas surge to operate this relay. Moreover, Buchholz Relay is never meant to be a diagnostic device for preventive maintenance of transformers.

OLTC vibrations monitoring

THE OLTC moving parts are subjected to physical stress which tends to deform them. When snapped back to original position -The moving parts oscilate back-and-forth oscillations are reduced to zero by the natural damping effect. This damping effect is related to the mass, geometry and parts material. As the geometry changes – the damping factor changes and the whole vibration signature changes. The friction of the moving parts causes parts drift and loosnes which also results in different vibration signature.

OLTC motor current monitoring

Our state of art OLTC current spectrum monitoring gives valuable information of the mechanical state of the OLTC by trending harmonics in the current spectrum. Further problem identification is possible by adressing harmonic frequencies to moving parts geometry in terms of frequency/speed.

OLTC oil quality and monitoring

Ever since the beginning of transformers use the transformer oil breakdown voltage testing has been used as proven method for evaluating  the dielectric properties of the transformer oil. Our revolutionary sensor measures and monitors breakdown voltage and tan delta directly mounted on transformer tank. With this chemical properties and oil contamination can be identified in very early stage before sludge formation takes place.  This reduces significant service costs as sludge