Transformer Management & Control
SC – Signal Conditioner Digital Transducer
Digitalizes values of temperature, tap position, current, voltage and contacts by generating serial outputs (DNP3.0/Modbus) plus analog and contact communication. Digitalizes alarm/trip contact status from intelligent SCA High-Speed Relay outputs. Transducers are applied in substations and high voltage and industrial plants to convert signals of different nature – like temperature, AC or DC voltage, AC…
SCA – Signal Conditioner Intelligent High-speed Relay
High speed auxiliary relays are used in substations and high voltage and industrial plants to multiply alarm or tripping contacts with minimum delay. The 4-output contacts of the SCA Intelligent High-Speed Relayfulfils this function (two versions of the relay are available) with pick-up times below 2.5ms: Simple implementation: one voltage input to control the 4…
SCL – Signal Conditioner Circuit-breaker Coil Monitor
One of the highest failurs found in high and medium voltage circuit-breakers is that drive coils open or burn – there is one coil to close and two coils to open the circuit-breaker. To detect a failure, the SCL has inputs for monitoring the electrical continuity of up to 3 coils simultaneously, with independent alarm…
SCP – Signal Conditioner Membrane/Bag Monitor
The transformer or power reactor sealing system uses a rubber membrane or bag in conservator expansion tanks to prevent the insulating oil from making contact with outside air. The bagprevents oxygen and humidity contamination, both of which accelerate paper degradation. The bag system also retards oil and dielectric breakdown. However, membrane or bag leakage may…
IDX – Intelligent Electronic Device Circuit Breaker Monitor
Circuit breakers are widely employed to protect and switch electric power systems. Therefore,they must be in perfect operating condition in order to maintain system reliability and safe installations. Online monitoring and condition assessment using the expert Circuit-breaker Monitor – IDX ensuresfailure reductions through early detection and diagnosis of equipment defects hence maintaining continuity of the…
IDM – Intelligent Electronic Device OLTC Torque Monitor
Because it has moving parts, which switch high voltages and currents, the on-load tap changer (OLTC) is statistically a major source of faults in transformers. In order to detect defects in the OLTC at an early stage and reduce the likelihood of unexpected downtime, the IDM monitors the OLTC torque online, alerting the operator to…
IDR – Intelligent Electronic Device Voltage Regulator Monitor
In an increasingly demanding marketfor Quality of Supply, the rules for acceptable supply limits are becoming more stringent. There is a growing need for tools capable of meeting this reality and ensuringhigh levels of voltage regulation. Treetech’s New Voltage Regulator Monitor IDR offers a solution that goes beyondthe traditional and well-known single phase and three…
SIGMA – Forecast On-line Monitoring Sub-system Temperature Forecasting
One of the principal factors limiting the loading of power transformers is the maximum temperature rise of the equipment as a result of its loading and the ambient conditions. High operational temperatures, will accelerating the loss of insulation life and increase the risk of failures (also as a result of the risk of bubble formation)….
SIGMA – Specialist On-line Monitoring Sub-system Specialist System for Diagnostic and Prognostic
The SIGMA Monitoring Software is composed of independent and scalable modules called Sub-systems that allow users to build a monitoring system, according to their own specific needs. The Sub-systems are based on mathematical models that execute the processing of measurements obtained from equipment sensors, transforming the raw data into useful maintenance information. As a result,…