Temperature check during operation of electrical equipment

infrared image                              image in the visible spectrum

Thermography is measuring the infrared radiation thermal field by recording and visualization of temperature distribution on surfaces observed.

An IR photography can give us a lot of information. Thermography is the only diagnostic technology that allows you to view and verify thermal performance. IR cameras today will allow the identification of the nature of thermal problems, quantify them through a  extremely precise non-contact measurment, allowing automatic presentation of results in the form of professional reports.

Almost any device that uses or transmits energy is overheating prior to malfunction. Therefore nowadays nobody disputes that thermography is the most effective predictive maintenance technology designed, due accuracy and reliability with which potential problems can be identified. Using thermography shows a multitude of other benefits:

• allows remote temperature measurement without direct contact

• is a non-destructive method – does not affect in any material object or process being investigated

• is a non-invasive method – can be repeated as often as needed

is the investigation of quickly and efficiently without requiring equipment decommissioning

• defects are detected at an early stage, long before damage occurs

In the Energy field, we investigate all types of installations, transport, distribution and use of electricity:

• electric generators

• transformers, autotransformers, compensation coils

• electric cells

• electric cables

• electric cable connections

• electric panels

These types of equipment can detect:

• weakened or damaged electrical connetions

• damaged bushings, internal transformation of terminal units and deficiencies in their cooling systems

• overheated circuits (undersized)

• unbalanced circuits

• induction heating

• other faults visible due to thermal modification

Advantages of thermography in relation to other methods:

Also, our team offers professional solutions for design, manufacture and installation of both the low voltage distribution boxes and main niches branching.

Types of switchboards:

• Force distribution;
• Lighting distribution;
• Automation;
• Reactive energy compensation;
• Control;

Independent Systems (OFF-GRIG)

Domestic and industrial photovoltaic systems are designed to produce electricity by converting light (solar energy) into electricity. Photovoltaic systems can be used as autonomous systems to supply electricity to consumers who are far away from the national system power supply or connect the NPS (National Power System).

Since the consulting phase, our engineers will present technological updates, solutions and alternatives that are suitable application and meet your needs allowing you knowingly choose the best solutions. EETim full service warranty and post warranty for equipment and systems supplied have staff specializing in the design, installation and maintenance of photovoltaic electricity generation:

• Isolated photovoltaic systems without grid connection for homes, hotels, farms, or radio weather stations with power of 0.5 – 180kWp;
• Photovoltaic systems with connection to public networks of electricity for residential or industrial use powers of 1 – 400kWp;
• Photovoltaic parks, power 0.5 – 10MWp.

• prefeasibility studies (SPF);
• solution studies;
• feasibility study (FS);
• technical project (PT);
• specifications (CS);
• documentation for building permit (DTAC);
• execution details (DE);
• as-built documentation;
• technical expertise

With over 20 years experience in the field, we provide quality in the execution of projects for various electrical instalations,  20kV voltage, both for upgrading existing  electrical power distribution equipment and new equipment:

• Electrical installation interior / exterior for civil and industrial overhead and underground 20kV voltage;
• Industrial power supply for small, medium and large;
• cable electric lines (LES) with voltage of 20kV;
•   transformer MV / LV (power points, points of connection);
• protection equipment and measuring equipment.

Equipment and materials used by our company (provided by Schneider Electric) and assembly technologies (3M) is applied correctly and effectively guarantee professionalism and seriousness with which we treat any collaboration.

• Electrical installation of low voltage-current – indoor and outdoor lighting systems, installation of sockets and power lines, underground electric lines (LES) of 0.4 kV;
• electrical connections phase / three-phase overhead or underground;installations of protection against electric shock and lightning;
• low voltage electrical installations – telephone systems, voice-data structured networks, warning and alarm fire, CCTV, intelligent building management solutions (BMS – Building Management Systems);
• equipment supply electricity produced from alternative energy sources (wind turbines, photovoltaic panels).

We sell and install Canalis busbar trunking systems for lighting installations, power and current transport.

Advantages Canalis busbar trunking systems:

• designed for all types of buildings
• lightweight and easy to handle
• excellent contacts (silver-plated copper)
• zero maintenance
• completely modular
• in accordance with IEC 439-2

Current range for busbar trunking systems Canalis:

• For lighting systems: 25-40 A
• Distribution among energy systems: 40-160 A
• For current transport systems: 100-1000 A

Merten KNX

Schenider Electric is a name in the production of electrical materials and provides top professional solutions for automation of houses and buildings. Merten system for smart homes and buildings, uses technology KNX / EIB as communication protocol between system devices. Thus it is possible to create complex custom scenarios , making your home unique.

Services offered by EETim to increase your comfort in terms of smart homes include:

• Consulting, design, construction of simple solutions for smart homes, smart electrical installations up to complex building automation;
• Mounting automation equipment;
• Training for the end user;
• Programming system as recommended by end user scenarios.

  Design consulting, construction, programming, installation and commissioning:

• Distribution Automation using long-range solutions SCHNEIDER ELECTRIC, SIEMENS and communication lines;
• Variable speed drive systems, in AC and DC;
• Control systems and high-precision positioning;
• Data acquisition systems, industrial monitoring and control;
• Technological lines fully automated PLC controlled and supervised by PC;
• Computer guided measurement and control systems;
• Automation for special machines;
• Consultance aiming to identify the main technical characteristics of the devices and their application, installations upgrade possibilities , the choice of optimal solutions;
• Automation systems with PLC SCHNEIDER ELECTRIC, SIEMENS, OMRON;

• Infrared Thermographic Inspection;

• Protective conductor continuity;

• Dielectric strength up to 5000V;

• Electrical resistance: from 500V to 5000V;

• Measurement of insulation resistance;

• Earthing Dispersion Measurement;

• Power quality analysis in AC and DC;

• Measurement of electrical parameters for photovoltaic systems.

Distribution Switchboards are designed to take electrical energy from one or more sources and providing differential protection, short circuit, overload and overvoltage to evacuate energy to various points of consumption.

Transformers, electric motors, ballast coils, air conditioning systems etc, comsume reactive energy. Reactive energy circulation leads to:

• increased costs in electricity bill
• increased equipment costs by increasing the installed power
• additional losses of active and additional voltage drops in conductors
• decrease available power in the secondary of the transformer

Reducing the above mentioned equipments is made via automatic compensation of reactive power, made with the following basic components:

• compensation capacitors
• contactors for connection / disconnection of capacitors
• power factor controller

The compensation is achieved by calculating the reactive power consumed permanently, based on direct measurement of phase voltage / line voltage and phase using an external current transformer. Depending on the calculated value of power factor regulator control circuit inserting or removing the gear compensation after a predetermined adjustment program.

Main technical characteristics of switchboards for reactive power compensation:

• Rated power: – 22.5 … 100 kVAr in enclosure                                                                                                     – 300 -100 enclosure kVAr in kVAr in cabinet
• Nominal voltage: – 230 … 240 V / 50 … 60 Hz                                                                                                          – 400 … 415 V / 50 … 60 Hz
• Number of speed control: – 1 … 6 with R6 Varlogic regulator                                                                                                – 1 … 12 with R12 Varlogic regulator
• Panel size: – 500x500x250 mm minimum                                                                                                          – maximum 600x800x2000 mm
• Working temperature: 0 … + 45 grd.C
• Protection level: IP30 – IP55

EETim SA implemented equipment for reactive power compensation:

• VarPlusCan pole capacitor modules / VarPlusBox – Schneider Electric, or Enerlux
• Power factor controllers: Varlogic R6 / R12 Varlogic (Schneider Electric)
• Contactors: LC1-DK Series (Schneider Electric)