Green energy expert Member of LUKA & BRAMER GROUP, a. s. located - PowerPoint PPT Presentation

Green energy expert • Member of LUKA & BRAMER GROUP, a. s. located in Brno • Focus • supply of technologies for utilization and waste processing • supply and service of technologies within the energy sector • supply and service of technological units for energy savings in households and industry • research and development of depolymerisation and gasification technologies • Provides • experienced team of engineers with years of experience in the field • unique solution for each technological unit

Electric power economy management r Electric power quality control suppressing unwanted effects from the electricity supply

Unwanted effects from the electricity supply r 1. Overvoltage and undervoltage in the power supply network • The normalised voltage in CZ and the EU is 230 V +/- 10% (207-253 V) • Most appliances are produced for voltages of 220-230 V • Overvoltage, undervoltage, frequent voltage fluctuations => unwanted effect on function, consumption, and the life of the appliance

Unwanted effects from the electricity supply r 2. Phase voltage asymmetry • The voltage on each phase often differs by more than 5 V • Motors => incapable of smooth motion = performance degradation => offset by higher current • Consequence => conversion of electricity into mechanical rotational movement is asymmetrical => adverse effects on the function, life, and consumption of electrical appliances

Unwanted effects from the electricity supply r 3. Low Power Factor (PF) • Caused by electric motors, and the quality of supplied electricity • Motor=> tendency to produce electricity, but also produces reactive power! • Reactive power => electricity converted into thermal energy in the work place • Consequence: overheating of conductors, reduced equipment life, increase in electricity consumption

Unwanted effects from the electricity supply r 4. Harmonic distortion • Occurs due to the load, which distorts the sinusoidal current • This load is caused by e.g. computers, UPS, frequency converters ... • There is an increase of higher harmonics 3, 5, 7, 9, 11 • Overloading neutral conductors • Negative impact on the life of appliances

Unwanted effects from the electricity supply r 250 Voltage [V] 200 5. Micro network outages 150 100 • Usually last a few tens to hundreds of ms 50 • They are caused by external disturbances 10 20 30 40 50 60 70 80 in distribution systems; Time [ms] • Cause problems in manufacturing processes for energy-sensitive devices, such as CNC centres, special manufacturing equipment, servers, technological processing lines • Reduced production on manufacturing lines => higher error rates and scrap production • Negative impact on the life of appliances

Electric power quality control r Portfolio of products • Energy Savers • Active UPS • Static voltage stabilisers • Power factor correction • Harmonic distortion filters • Backup DC power source • Backup AC power source • Single and three-phase transformers

Description of the main components of e-cont units r • Transformer – isolation transformers with multiple branching to increase and decrease the voltage, also acts as a passive harmonic filter. • Thyristor control – consists of several thyristors (power semiconductor elements) and the control unit switches between the transformer branching, controls the output voltage of the device +/- 1% as needed. • Real time compensation – reacts to changes in the network in a matter of 5-20 ms. Can increase the power factor up to cos φ 0.99 . • Active harmonic filter – reduces total harmonic distortion for the range of 2nd to 25th harmonics, or to a harmonic target.

Energy Saver r • Each unit is made to measure, according to the type of load, from 16 A to 4.545 A • Optimizes the operating voltage to the desired value, depending on consumption (kWh) +/- 1% at each stage, stabilizes overvoltage and undervoltage • Reduces losses during power transmission • Filters distortion harmonic and interharmonic frequencies to the minimum level • Reduces reactive power (kVAr) to the minimum level • Removes transient surges and flickering fluctuations of voltage in the consumer’s network • Automatically compensates the power factor in real- time to 0.95 to 0.99 cos φ

Energy Saver and the components used r • Network analyser • Terminal block inputs and outputs • Circuit breaker at the input to the Energy Saver • Circuit breaker at the output from the Energy Saver • Manual Bypass Switch and Saving Mode • Automatic Bypass during breakdowns of the Energy Saver • Thyristor control • Active harmonic filter • Power factor correction • Main and auxiliary transformers • Energy Saver controller

Suppressing unwanted effects of the electricity supply r • Low power factor • Harmonic distortion • Transients in the network

Suppressing unwanted effects of the electricity supply r • Overvoltage • Phase voltage asymmetry

Energy Saver – electricity savings r Amount of energy savings depends on the type of load • Motor load 6 – 12 % • Combined load 8 – 18 % • Lighting load 10 – 22 % Energy savings also lead to reduced CO 2 production Technology life of more than 20 years

Active UPS r • Active backup power supply • Protection against micro grid outages • Delivers continuously regulated, constant voltage and frequency for the safe use of electrical devices • Solutions for protecting computer systems, servers, network terminals, CNC machining centres, specialised production equipment, process lines • Reliably provides AC power for very sensitive devices

Active UPS r • Internal voltage and frequency circuits provide protection against voltage and frequency degeneracy in the network • Rectifier on the input and output isolation transformer protects against failure of the network • UPS operates continuously through the rectifier, battery, and inverter • Fluctuation of the network voltage does not affect the output voltage • The output frequency corresponds to the network

Active UPS specifications r • Single-phase input - single phase output in the range of 2-15 kVA • Three phase input – single phase output, ranging from 10 to 40 kVA • Three phase input- three phase output, ranging from 10 to 200 kVA • Fuse/circuit breaker at the input, output, and battery • Protection against overheating, overload, short circuit, overvoltage and undervoltage, low battery • On / Off switch and a manual by-pass in case of failure or maintenance

Static voltage stabiliser r • Protection against dangerous electrical voltage changes • Device for monitoring, protection, and control of voltages, microprocessor controlled • Setting the correct voltage value you require, as desired by numerous sensitive industrial equipment • Continuous supply of stable and secure energy • Captures voltage drops and increases in the order of 0.02 seconds in the voltage range from -60% to +40% • Rate fluctuation correction of 500 V/s

Static voltage stabiliser r • The equipment includes: protection against overvoltage and undervoltage, overtemperature, overload, short circuit, and phase break • Manual by-pass for the transfer of the load directly from the mains voltage • Thermomagnetic fuses on input and output of the units • Single-phase and three-phase outputs from 2 kVA to 3,200 kVA (up to 4.000 A) • Units for high-load, from 800 kVA to 12,000 kVA (up to 16.000 A) • All industrial voltage values: 230, 380, 400, 415, 480, 600 V • Very wide range of input voltage ranges

Static voltage stabiliser r • Maintenance-free technology controlled by microprocessor • High efficiency: up to 97% • Remote access software Ssupport • Overvoltage protection, sudden voltage rises and flashes • Control unit with LCD display

e-cont unit installation options r Lighting • Public lighting, production halls, sports halls, stadiums, car parks, airports, roads and communications Industrial sector • Industrial concerns, production plants, foodstuff producers, chemical plants, CNC machines, petrol stations Public sector • State administration buildings, town council offices, schools, kindergartens and nurseries, cultural and sports centres, hospitals Travel and tourism • Hotels, guest houses, restaurants, cafés and coffeeshops, cake shops

e-cont unit installation options r Agriculture • Biogas stations, farming co-operatives, styes, stables, poultry farms Commercial areas • Wellness centres, aquaparks shopping centres Homes • Houses, apartments, developer’s projects

Design process for e-cont units solutions r • Detailed analysis of electricity at the installation site with a certified device • Analysis evaluation => choice of components • Creating quotations • e-cont unit assembled to order • Installation of the main/sub distribution

References for projects that our team worked on r • Přerov technical services • Vsetín funeral hall • Olomouc technical services • R-Hotels • Uherské Hradiště town • Combin • Přerov town • Tizzi • Petřvald town • DHL supply chain • Otrokovice town • Ball Aerocan • Kroměříž town • Motorest Samota • Prostějov town • Fa Rene Mercedes Benz and others … • Bio-gas station Smolotely

Thank you for your attention LBG Moravia, a.s. Šmahova 1244/112 627 00, Brno Czech Republic www.lbgmoravia.cz +420 513 036 350 info@lbgmoravia.cz