KONČAR - Electrical Engineering Institute Ltd. products

The solution in form of an easy-to-install protection relay provides measurement and analysis of shaft voltage and current which may damage the generator bearing. Monitoring of shaft currents and a quick response to increasing amplitude of these currents is an easy way to protect the expensive power generation equipment.

Small hydro plants are crucial source of power in some areas. For longer lifetime and better asset management they need to be equipped with a proper monitoring system. Small hydro condition monitoring (SHCM) is a solution specifically designed for small hydro plants with installed capacity of up to 5 MW. The SHCM system is designed to measure all key parameters and prolong the life span of small hydro plants. The solution is equipped with most important features for optimized hydro plant management and at the same time cost efficient.

EMCM is a compact monitoring system that detects key motor faults such as damage of stator and rotor windings and shaft and bearing damages. It also monitors key motor values - vibration, current and temperature. The solution uses high resolution patented method for fault detection which enables predictive maintenance and so significantly expands the life time of medium and high voltage motors. Thanks to EMCM system, critical industrial applications run by motors are more effective managed and maintenance periods are optimized.

Condition monitoring of large systems in power plants can come in various forms and functions, whereas different stakeholders want to have access to different kind of information. They all, however, share the same goal - to protect their investment. According to a study from IRD Balancing LLC, in United States alone is spent more than $200 billion annually on maintenance. The research also shows that between 15% - 40% of the operating costs of a plant represent maintenance costs out of which 28% - 35% is unnecessary spending.

One of the key parameters of the power generator in terms of control and stability protection is the angle of the induced voltage internal to the generator (load angle). Load Angle & Power System (LA&P) enables direct measurement of the generator load angle based on key phasor and electrical values measurement of the generator. Besides load angle measurement, LA&P system enables measurement of electrical values (active and reactive power, power factor, current and voltages).

Torque, speed and power are the defining mechanical parameters associated with functional performance of rotating machines (machine efficiency determination). ST&P system enables insight into this important machine parameters by on line measurement of shaft twist angle. The system uses two precise optical fork sensors for twist angle measurement. Besides on-line torque measurement, ST&P system enables measurement of power and rotating speed.

SRI instrument measures mechanical imperfections such as out-of-roundness and non-concentricity with respect to the bearing surface. The reading which results from these imperfections, usually known as runout, must be reduced if it exceeds the recommended value.

The TG-WFD system performs analysis of magnetic field in machines air gap. Based on a patent-pending solution for differential measurement of magnetic field, the system can provide to users information on potential shorted turns in real-time. TG-WFD system allows better asset management and reliable monitoring of the machine.

The HG-WFD system performs analysis of magnetic field in machine air gap of turbo generator. Based on patent-pending solution for differential measurement of magnetic field, the system can provide to users information on potential shorted turns in real-time. HG-WFD system allows a better asset management and reliable monitoring of the machine.

The system detects the most common faults in induction motors: rotor cage damage, winding inter-coil short circuits and eccentricity. This innovative product detects faults with the highest resolution thanks to the new method that processes the signal obtained from the air gap, where faults are most visible and easiest to detect.