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Flameproof motors
Flameproof motors
This section introduces low voltage three-phase squirrel cage asynchronous motors designed for explosion-proof environments. These motors are certified under EU Directive 2014/34/EU and IEC Ex Scheme, offering high efficiency and adaptability for use in explosive atmospheres.
Explosive Atmosphere
Explosions are sudden chemical reactions of flammable substances with air. The document classifies hazardous areas into zones and outlines safety categories per Directive 2014/34/EU and EN 60079-0.
Technical Description of EX Motors in Enclosure Ex d
Details include production programs, standards, efficiency classes, and features like mechanical protection, mounting arrangements, and cooling types.
Motors of 5/7 AT 71-315 Series in Protection Enclosure "d"
Specific series designed for explosion-proof environments with detailed technical specifications.
Technical Data
Includes efficiency classes (IE1, IE2, IE3) and dimension drawings.
Spare Parts
Ensures availability of components for maintenance and repair.
About KONČAR-MES
KONČAR-MES Inc. is part of the Končar Group, emphasizing innovation and quality in electromotors and drives.
Classification of equipment protection levels (EPL) for explosive atmospheres, distinguishing between gas and dust environments. Includes explosive groups and temperature classes.
Temperature Classes:
Devices are classified based on ignition temperatures, with specific limitations for underground mining and group II devices.
Flammable Substances Classification:
Classified into classes A, B, and C based on Maximum Experimental Safe Gap (MESG).
Dust:
Defines ignition temperatures for dust and permissible surface temperatures.
Dust Layers:
Guidance for adjusting maximum permissible surface temperature for dust layers exceeding 5 mm.
Dust Conductivity:
Divided into sub-groups based on conductivity.
Ex Protection Concept:
Lists types of protection for electrical equipment in explosive atmospheres.
1. Overview of ATEX Marking:
Details ATEX markings for KONČAR-MES electromotors, indicating protection type, gas group, and temperature class.
2. Technical Description of Ex Motors:
Focuses on 'Explosion-proof enclosure' (Ex d) and 'Dust explosion protection' (Ex t).
3. Standards and Directives:
Developed according to IEC standards, covering mechanical strength, cooling methods, and efficiency classes.
4. Efficiency Classes:
Outlines efficiency classes IE1, IE2, and IE3.
5. Key Data from Tables:
Includes motor types, protection categories, and efficiency ratings.
Efficiency ratings for motors at 60 Hz, with detailed tables for various power levels.
Motor Designation:
Type designation includes electrical and mechanical construction data.
Efficiency Classes:
Outlines IE1, IE2, and IE3 classes.
Series Marking:
Indicates housing type and motor features.
Additional Options:
Includes brakes, increased power, and special designs.
Electrical Features:
Discusses voltage and frequency standards.
Nameplates:
Provides product information and rated electrical data.
Technical data for motors at 50 Hz and 60 Hz frequencies, with guidelines for voltage and frequency combinations.
Electrical Configuration:
Standard voltage and frequency deviations categorized into Category A and B.
Rated Speed and Direction:
Applicable for nominal data, suitable for both rotation directions.
Rated Torque and Current:
Provided in Nm at the motor shaft.
Overload Capacities:
Motors can withstand short-term overloads.
Insulation System:
Made in thermal class F, with options for class H.
Thermal Protection:
Integrated into the motor winding to prevent overheating.
Detailed specifications for motor types, including power ratings and designations.
Mechanical Design:
Focuses on cooling and structural integrity.
Ex Protection:
Features Ex db - Ex db eb interchangeability.
IP Protection Ratings:
Standard IP55 protection, with higher levels available.
Mounting Arrangements:
Defined by IEC 60034-7 and DIN 49250.
Shaft Design:
Adjusted according to motor frame sizes.
Dimensions and tolerances for keyways and keys.
Bearings:
Details on bearing types and maintenance.
Permissible Forces:
Lifetime and force details for bearings.
Terminal Box:
Position and design details.
Cable Entry:
Methods depend on terminal box position.
Standard cable glands are metal M63, with variations available.
Cooling Methods
Adhere to IEC 60034-6 standards.
Vibrations
Levels follow IEC 60034-14.
Corrosion Protection
Involves sandblasting and quality coatings.
Outlines corrosion protection measures and final coatings.
Noise Levels
Designed to operate below IEC 60034-9 limits.
Allowed Tolerances
Defined by IEC 60034-1.
Marine Design Motors
Offers marine design induction motors for shipbuilding.
Special Marine Products – Motors for Winches
Specialized motors for winches, meeting classification societies' requirements.
Specialized motors for winches in shipbuilding.
Forced Ventilation for Three-Phase Induction Motors:
Ensures consistent cooling.
Brakes in EX Protection:
Modular flameproof spring-applied disc brakes.
Encoder in EX Protection:
Standard encoder with high EX and IP protection.
Motors of 5/7 AT 71-315 Series in Protection Enclosure "d":
Designed for explosive atmospheres, certified for various applications.
Suitable for ambient temperatures from -20°C to +40°C.
Standard Design:
Includes series 5AT 71-112 and 7AT 90-315.
Mounting and Power Range:
Details on mounting designs and power range.
Technical Data:
Voltage and frequency specifications.
Additional Options:
Includes different voltages, frequencies, and protection options.
Option to purchase all motor parts, ensuring service and repair efficiency.
Spare Parts List
- Stator: Complete wound stator.
- Rotor: Balanced with half-key.
- Bearing Shields: Front and rear bearing shields.
- Fan and Cover: Includes fan and fan cover.
- Terminal Components: Terminal block and connectors.
- Seals and Gaskets: O-rings and shaft seals.
- Miscellaneous: Includes cable glands and plugs.
KONČAR-MES: Located in Zagreb, Croatia. Contact via phone or email.
Lammers: Located in Rheine, Germany. Contact via phone or email.
Catalog excerpts
Vertrieb durch / distribution by Flameproof motors www.lammers.de www.koncar-mes.hr
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SADRŽAJ / TABLE OF CONTENTS /INHALT 1. GENERAL INFORMATION ABOUT EX PROTECTION ALLGEMEINES ÜBER EX SCHUTZ Eksplozivna atmosfera Explosive atmosphere Explosive Atmosphäre Temperaturni razredi električnih uređaja Temperature classes of electrical devices Temperaturklassen von elektrischen Betriebsanlagen Pregled Ex KONČAR-MES elektromotora Overview of Ex KONČAR-MES electromotors Übersicht über Ex KONČAR- MES Motoren TEHNIČKA RAZJAŠNJENJA EX MOTORA U ZAŠTITI OKLAPANJE Ex d TECHNICAL DESCRIPTION OF EX MOTORS IN ENCLOSURE Ex d TECHNISCHE BESCHREIBUNG DER EX MOTOREN IN ZÜNDSCHUTZART DRUCKFESTE KAPSELUNG...
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KONČAR-MES d.d. je članica KONČAR Grupe koja ima dugu tradiciju već više od 90 godina, a svoje proizvode isporučuje velikom broju kupaca diljem svijeta. Imamo široku paletu proizvoda koja su podržana s našim vlastitim razvojem, tehnologijom i kvalitetom usluga što predstavlja dobru osnovu za dugogodišnje ciljeve. Kroz naše poslovne strategije nastojimo biti prisutni u uspješnoj skupini proizvođača pogona na svjetskom tržištu. Jedan od naših najvećih prednosti su kompetentni i obrazovani zaposlenici s naglaskom na našim inženjerima koji koriste svoje znanje i sposobnosti pri primjeni novih ideja...
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CERTIFIKATI CERTIFICATES ZERTIFIKATE
Open the catalog to page 5
1. GENERAL INFORMATION ABOUT 1. ALLGEMEINES ÜBER EX SCHUTZ EX PROTECTION Ovaj katalog sadrži osnovne tehničke podatke niskonaponskih trofaznih asinkronih kaveznih zatvorenih elektromotora u izvedbi EX zaštite oklapanje - “d/db” serije 5AT 71 – 112 i 7AT 90-315. Motori u protueksplozijskoj zaštiti odlikuju se visokom kvalitetom materijala, robusnom izvedbom, visokom IP zaštitom, ležajevima podmazanim za vijek trajanja, završnim premazom otpornim na utjecaje vremena i koroziju te izolacijskim sustavom visoke dielektričke čvrstoće predviđenim za rad preko frekvencijskog pretvarača. This catalogue...
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Eksplozija je nagla kemijska reakcija zapaljive tvari sa zrakom, uz otpuštanje velike količine energije. Zapaljive tvari mogu biti: plinovi, zapaljive tekućine, pare ili prašina. Sveobuhvatna zaštita od eksplozije podrazumijeva: prevenciju nastajanja potencijalno eksplozivne atmosfere, prevenciju zapaljenja potencijalno eksplozivne atmosfere i zadržavanje učinaka eksplozije na određenom području. Protueksplozijska oprema kao jedna vrsta sprječavanja nastanka eksplozije primjenjuje se na sljedećim područjima: - Grupa I – rudarstvo - Grupa II – ostala područja osim rudnika Područja podijeljena...
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1.3. Temperaturni razredi električnih uređaja Svi električni i neelektrični uređaji namijenjeni za rad u prostorima ugroženim eksplozivnom atmosferom, razvrstani u temperaturne razrede, smiju se zagrijavati prema niže navedenoj tablici. Temperaturni razredi također klasificiraju i plinove i pare u odgovarajuće temperaturne razrede sukladno njihovoj temperaturi paljenja. Temelj te podjele je da zagrijane površine električnih uređaja i plinovi i pare, odnosno zapaljive prašine jednakog temperaturnog razreda nikada ne mogu uzrokovati paljenje okolne eksplozivne atmosfere. Najviše dopuštene nadtemperature...
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Klasifikacija zapaljivih tvari u klasama A, B i C napravljena je prema širini dozvoljenog raspora MESG (Maksimalni testirani zaštitni raspor) koji utječe na mogućnost da iskra iz kućišta zapali okolnu smjesu eksplozivne atmosfere. Ova sposobnost smanjuje se iz klase C do klase A, što znači da se zahtjevi postavljeni na dizajn za zaštitu od eksplozija povećavaju iz klase A u klasu C. Clasification of flammable substances in classes A, B and C is made according to the width of a prescribed protective gap of MESG (Maxium Experimental Safe Gap) which has an affect on flame penetration ability originating...
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Za različite tipove zapaljivih krutih tijela – prašinu i čestice, temperatura paljenja je također definirana i kodirana u dokumentu IEC 60079-0. Potrebno je više energije za aktiviranje eksplozije nego u slučaju plinova i para. Prašina u svojoj taložnoj (slojevitoj) formi ima različitu temperaturu paljenja nego u uzburkanoj formi (oblak). Dozvoljena površinska temperatura sustava, opreme i komponenti dostupnih prašini određena je oduzimanjem 75K (Tperm L = Tmin L - 75 K) od vrijednosti utvrđene za sloj prašine, te množenjem s 2/3 (Tperm C = 2/3Tmin C) vrijednosti određene za oblak prašine. Manja...
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Slojevi prašine koji premašuju 5 mm Ako se na uređaje talože slojevi prašine debljine od 5 do 50 mm maksimalna dozvoljena temperatura površine mora se reducirati. Dijagram iz standarda EN 60079-14 može se koristiti kao pomoć u ovom slučaju. Tamo gdje tipovi prašine imaju temperaturu paljenja (temp. taljenja za debljinu 5mm) manju od 250°C ili tamo gdje postoji sumnja oko krivulje karakteristika, ovisnost mora biti utvrđena laboratorijskim testiranjem. Layers of dust exceeding 5 mm If deposits of dust with thickness of more than 5 mm to 50 mm can accumulate on devices the maximum permissible surface...
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Vrste Ex-zaštita električne opreme za eksplozivnu atmosferu plinova, para, maglica i prašine (EN/IEC 60079-0) Types of protection of electrical equipment for explosive atmosphere of flammable gases, vapours, mists or dusts (EN/ IEC 60079-0) Zündschutzarten elektrischer Ausrüstung für die explosive Atmosphäre der Gase, Dämpfe, Nebel und Stäube (EN/IEC 60079-0) Kategorija Category Kategorie Vrsta zaštite ‘n’ Type of protection ‘n’ Zündschutzart n’ Zaštita kućištem Protection by Enclosures Schutz durch das Gehäuse Naziv zaštite Type of protection Zündschutzart Norma Standard Norm EN/ IEC Oklapanje...
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