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- KONČAR - MES Ltd.
- EXPLOSION PROOF MOTORS
EXPLOSION PROOF MOTORS
EXPLOSION PROOF MOTORS
- Introduction: The document provides technical data on low-voltage, three-phase asynchronous cage motors with EX protection enclosure 'd/db' series 5AT 71-112 and 7AT 71-315.
- Explosive Atmosphere: Discusses the conditions and classifications of explosive atmospheres where these motors are applicable.
- Temperature Classes: Details the temperature classifications for electrical devices used in explosive environments.
- Dust: Addresses the considerations for dust in explosive atmospheres.
- EX Protection Concept: Explains the principles and design considerations for EX protection.
- Overview of EX KONČAR - MES Electromotors: Provides a summary of the product range and their applications.
- Production Program: Outlines the range of products available.
- Standards: Lists the standards these motors comply with, including ATEX Directive 2014/34/EU and IEC 60034-30.
- Efficiency Class: Discusses the IEC efficiency classes applicable to these motors.
- Motors Designation and Nameplates: Details the labeling and identification of motors.
- Electrical Features: Describes the electrical specifications and capabilities.
- Supply Over Frequency Converter: Information on using frequency converters with these motors.
- Mechanical Design: Covers aspects such as main design, mechanical protection (IP code), mounting arrangements, shaft, bearings, terminal box, cable entry, cooling types, vibrations, corrosion protection, noise, and allowed tolerances.
- Marine Design Motors: Special considerations for motors used in marine environments.
- Forced Cooling for Three-Phase Induction Motors: Details on cooling mechanisms.
- Brakes and Encoder in EX Protection: Information on additional components for enhanced safety and functionality.
Details specific to the 5/7 AT 71-315 series motors, including their design and application in explosive environments.
Technical Data- IE1, IE2, IE3: Efficiency classes and their specifications.
- Dimension Drawing: Provides dimensional sketches for installation and integration.
Information on available spare parts for maintenance and repair.
About KONČAR - MESKONČAR - MES is a member of the KONČAR Group with over 90 years of tradition in producing high-quality motors. The company emphasizes innovation, quality, and customer satisfaction, aiming for excellence in electromotor production and drive technology.
CertificationThe motors are certified according to ATEX Directive 2014/34/EU, IEC 60034-30, and EU Ecodesign directive 2019/1781, ensuring compliance with international safety and efficiency standards.
Motors designed for use in mines are equipped with EX protection types such as "d/db" and "tb" for flammable dusts. These motors come with enclosures that ensure increased safety and direct cable entry options.
Additional Equipment
Motors can be equipped with additional features like anti-condensation heaters, encoders, thermal protection, and forced cooling. The temperature class or maximum motor temperature is specified for different gases and dusts, with classes ranging from T3 to T6.
Nameplates
Each motor is delivered with a nameplate containing basic product information and rated electrical data. Motors with EX protection have an additional plate indicating the type of explosive protection.
Electrical Features
Motors are designed according to EN 60034-1 standards, with voltage and frequency fluctuations categorized into Category A and B. Motors can operate at nominal torque in both categories, with specific guidelines for temperature rise and duty cycles.
Rated Speed and Torque
Motors are suitable for both clockwise and counter-clockwise rotation. Rated torque is calculated based on output power and speed, with locked-rotor and breakdown torque ratios provided in technical data.
Overload Capacities
Motors can withstand short-term overloads of up to 1.5 times the rated current for 2 minutes after reaching operating temperature.
Insulation System
The insulation system is made in thermal class F, with options for class H on request. The system is designed to ensure high mechanical and electrical resistivity, with additional strengthening for motors driven by frequency converters.
Thermal Protection
Thermal protection is integrated into the motor winding to prevent overheating. Various types of thermal protection are available, including PTC and bimetal switches, with specific configurations for different temperature classes.
Winding Heaters
Winding heaters can be installed to prevent moisture condensation during motor standstill. These are connected according to specific instructions and require additional cable glands when installed.
The document provides detailed specifications for various motor types, including power ratings, torque, and designations. It lists motor types such as 80A-8, 90S-8, 100LA-8, and others, with specific parameters like power (kW) and torque (Nm). Some entries are marked with "***" indicating availability on request.
Mechanical Design:
The motors are designed for optimal cooling and high strength. They are available in different frame materials: aluminum or grey cast iron for IEC sizes 71-112, and cast iron for sizes 132-315. Motors can be modified for different designs and are available with separately driven fans (cooling method IC 416). Standard supply voltage is D230/Y400V; 50 Hz (+/-10%).
Ex Protection:
Motors with Ex protection feature interchangeability between Ex db and Ex db eb designs, allowing direct cable entry. Changing between designs requires replacing the terminal box and associated components.
IP Protection Ratings:
Motors are produced with an IP55 protection rating as standard, protecting against dust and water jets. Higher protection levels, such as IP67, are available on request.
Mounting Arrangements:
Defined by IEC 60034-7 and DIN 49250, various mounting arrangements are available, including foot-mounted, flange-mounted, and combinations thereof.
Shaft and Bearings:
Shaft dimensions are adjusted to motor sizes, with special steel options available. Bearings are permanently greased for sizes 71-250, while larger sizes have grease nipples. Bearing lifetime is influenced by factors like load and speed, with a standard lifetime of 25,000 hours at 50 Hz.
Permissible Forces:
The document outlines permissible radial and axial forces for different motor sizes, based on standard conditions and bearing lifetimes. Values are adjusted for different frequencies and motor speeds.
The document outlines permissible axial (FA) and radial (FR) loads for standard bearing assemblies. It provides detailed tables indicating permissible loads based on motor size, speed, and mounting arrangements. The loads are specified for different motor configurations and are adjusted for frequency variations (50Hz and 60Hz).
Procedures:
The document describes the positioning and configuration of terminal boxes for motors, including options for multi-voltage and multi-speed motors. It also details cable entry methods, specifying standard and optional configurations for different protection levels (Ex protection).
Standards:
The cooling methods are aligned with IEC 60034-6 standards, detailing various cooling types such as natural convection, fan cooling, and forced ventilation. Vibration levels are specified according to IEC 60034-14, with options for reduced vibration levels upon request.
Recommendations:
For optimal performance, motors should be installed to allow unobstructed airflow for cooling. The document also suggests using appropriate cable glands and adapters based on the motor's operational environment and protection requirements.
Key Data from Tables:
The tables provide specific load values for different motor sizes and configurations, detailing axial and radial loads permissible under various conditions. They also specify the number and size of terminal connections and cable entry threads for different motor sizes.
Critical Information:
All load values are reduced by 10% for operations at 60Hz. Special configurations and additional equipment, such as independently driven fans or low-vibration versions, are available upon request.
The document outlines the corrosion protection systems for KONČAR-MES motors, adhering to EN ISO 12944 standards. It specifies different paint systems based on environmental conditions (C3, C4, C5) and motor materials (aluminium, cast iron), with varying total dry film thickness and number of coats.
Procedures:
Corrosion protection involves sandblasting, degreasing, and applying quality coatings. Temporary protection is provided for free-end shafts during transport. Special requests can be made for tropical or aggressive environments.
Noise Standards:
The motors comply with IEC 60034-9, maintaining noise levels below permissible limits. Noise levels for various motor sizes and polarities are detailed in a table.
Dimensional Tolerances:
Motor dimensions comply with EN 50347 and IEC 60072 standards. Tolerances for electrical and mechanical characteristics are defined by IEC 60034-1.
Marine Design Motors:
KONČAR-MES offers marine design motors for shipbuilding, approved by classification societies like BV and CRS. These motors are suitable for essential and non-essential drives, with specific protection indices (IP56, IP55) based on location.
Special Marine Products:
Motors for winches are developed for various applications, meeting classification society regulations. They offer specific speed and torque ranges for mooring and anchoring.
Forced Cooling:
Forced ventilation ensures consistent cooling across motor speeds, using independent power sources. This system is designed for motors with frame sizes 132 to 315.
Brakes in EX Protection:
Innovative modular brakes with EX protection are available, mounted as independent units on standard motors. They feature manual release options and monitoring switches for wear and engagement status.
- Efficiency percentages at full, three-quarter, and half loads.
- Power factor values indicating the phase difference between voltage and current.
- Current ratios (Ik/In) and torque ratios (Mk/Mn, Mmax/Mn) for performance assessment.
The document outlines the temperature specifications for KONČAR-MES motors, indicating that the maximum surface temperature must not exceed 100°C, and 85°C for T6 temperature class. Motors designed for higher temperature classes are suitable for ambient temperatures of 40°C. High-efficiency motors developed according to IEC 60034-30 achieve lower motor temperatures due to reduced losses and increased efficiency. These motors meet T5 and T6 temperature class requirements and are tested at a test station with results verified by CESI in Italy. Full catalog powers are available for T5 class without IEC power reduction, while T6 class motors are available across the complete IEC size range (71-315) with some power reductions.
Procedures:
The document includes detailed dimension drawings and specifications for various motor types, including terminal box designs and cable entry configurations. It provides measurements and specifications for different motor sizes and types, such as 5AT and 7AT series, with detailed dimensions and configurations for installation.
Spare Parts:
KONČAR-MES offers the possibility of purchasing all motor parts for their production program and assures service and repair for cooperative products in the shortest time possible. They provide necessary materials for maintenance, such as wires, insulation, cables, and thermal protection. An adequate rectifier is supplied with the brake, depending on the motor power supply.
Notes:
The document includes a list of spare parts with their positions and descriptions, such as stator, rotor, bearing shields, fan, terminal block, and various seals and connectors.
Contact Information:
KONČAR-MES contact details are provided for sales and export inquiries, including phone numbers, fax, and email addresses.
Catalog excerpts
MOTORS AND ELECTRICAL SYSTEMS ATEX certified, high efficiency motors*
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SADRZAJ / TABLE OF CONTENTS 1. OPCENITO O EX ZASTITI GENERAL INFORMATION ABOUT EX PROTECTION 06 1.3 Temperaturni razredi elektricnih uredaja 1.6 PregLed Ex KONCAR - MES elektromotora MOTORA U ZASTITI OKLAPANJE Ex d 2.6 Pogon preko frekvencijskog pretvaraca 2.7.2 Stupanj mehanicke zastite - IP oznaka 2.7.10. Zastita od korozije i zavrsni premaz 2.7.12 Dopustena odstupanja podataka (IEC 60034-1) 2.8 Motori brodske izvedbe 2.9. Prisilna ventilacija za trofazne asinkrone motore Explosive atmosphere Temperature classes of electrical devices Overview of Ex KONCAR - MES electromotors TECHNICAL DESCRIPTION...
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Certificirano prema ATEX direktivi 2014/34/ EU i u skladu s međunarodnim standardom učinkovitosti IEC 60034-30 i EU O NAMA KONČAR - MES d.o.o. članica je KONČAR grupe sa više od 90 godina tradicije. Široka paleta proizvoda podržana je vlastitim razvojem, tehnologijom i kvalitetom usluge što predstavlja dobru osnovu za postizanje dugogodišnjih ciljeva. Kroz naše poslovne strategije nastojimo biti prisutni u uspješnoj skupini proizvođača pogona na svjetskom tržištu. KONČAR - MES najveće prednosti su kompetentni i obrazovani zaposlenici s naglaskom na našim inženjerima koji koriste svoje znanje...
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Ovaj katalog sadrzi osnovne tehnicke podatke niskonaponskih trofaznih asinkronih kaveznih zatvorenih elektromotora u izvedbi EX zastite oklapanje - “d/db” serije 5AT 71 - 112 i 7AT 71-315. Motori u protueksplozijskoj zastiti odlikuju se visokom kvalitetom materijala, robusnom izvedbom, visokom IP zastitom, lezajevima podmazanim za vijek trajanja, zavrsnim premazom otpornim na utjecaje vremena i koroziju te izolacijskim sustavom visoke dielektricke cvrstoce predvidenim za rad preko frekvencijskog pretvaraca. U rudarstvu i mnogim industrijskim granama, opasnosti od eksplozije stalno su prisutne....
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1.3 Temperaturni razredi elektricnih uredaja Svi eLektricni i neelektricni uredaji namijenjeni za rad u prostorima ugrozenim eksplozivnom atmosferom, razvrstani u temperaturne razrede, smiju se zagrijavati prema nize navedenoj tablici. Temperaturni razredi takoder klasificiraju i plinove i pare u odgovarajuce temperaturne razrede sukladno njihovoj temperaturi paljenja. Temelj te podjele je da zagrijane povrsine elektricnih uredaja i plinovi i pare, odnosno zapaljive prasine jednakog temperaturnog razreda nikada ne mogu uzrokovati paljenje okolne eksplozivne atmosfere. Najvise dopustene nadtemperature...
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Za razlicite tipove zapaLjivih krutih tijeLa - prasinu i cestice, temperatura paljenja takoder je definirana i kodirana u dokumentu IEC 60079-0. Potrebno je vise energije za aktiviranje eksplozije nego u slucaju plinova i para. Prasina u svojoj taloznoj (slojevitoj) formi ima razlicitu temperaturu paljenja nego u uzburkanoj formi (oblak). Dozvoljena povrsinska temperatura sustava, opreme i komponenti dostupnih prasini odredena je oduzimanjem 75K (Tperm L = Tmin L - 75 K) od vrijednosti utvrdene za sloj prasine, te mnozenjem s 2/3 (Tperm C = 2/3Tmin C) vrijednosti odredene za oblak prasine. Manja...
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Vrste Ex-zastita elektricne opreme za eksplozivnu atmosferu plinova, para, maglica i praline (EN/IEC 60079-0) Types of protection of electrical equipment for explosive atmosphere of flammable gases, vapours, mists or dusts 1.6. Pregled Ex KONCAR - MES elektromotora U prilozenoj tablici sadrzan je kompletan pregled nasih proizvoda za podrucja primjene, kategorija, vrste zastite i odgovarajuce stupnjeve mehanicke zastite motora. 1.6. Overview of Ex KONCAR - MES electromotors An overview of all our products for areas of application categories, types of protection, and adequate indexes of motor mechanical...
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2. TEHNICKA RAZJASNJENJA EX 2. TECHNICAL DESCRIPTION OF EX MOTORA U ZASTITI OKLAPANJE Ex d MOTORS IN ENCLOSURE Ex d Nas proizvodni program pokriva sljedece vrste zastite: Tip zastite: „ Oklapanje“ Ex d prema IEC/EN 60079-31. Princip: Tip zastite u kojem su dijelovi koji mogu biti uzrok zapaljenja eksplozivne atmosfere pozicionirani unutar oklopa, a koji moze podnijeti pritisak eksplozije mjesavine unutar kucista te sprijecava prenosenje eksplozije na eksplozivnu atmosferu izvan kucista. Vazne konstrukcijske znacajke: ■ Mehanicka cvrstoca s definiranim sigurnosnim faktorom da podnese pritisak...
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Novi standardi i propisi (ErP directive - Energy Related Products i EU direktiva 2009/125/EC) za ucinkovitost asinkronih motora postaju obvezni u svim EU zemljama. Svi su bazirani na IEC standardima 60034-30 koji definiraju tri klase ucinkovitosti (IE1 do IE3) za motore koji rade na 50Hz i 60Hz. Nove klase ucinkovitosti definirane su u IEC 60034-30 za asinkrone motore (IE=International Efficiency): ■ IE4 (super premium ucinkovitost) U skladu s novom nomenklaturom metoda mjerenja takoder se promijenila ucinkovitost mora biti odredena prema IEC 60034-2-1. Minimalne vrijednosti ucinkovitosti koje...
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Svaki motor oznacen je tipskom oznakom koja daje osnovne podatke o motoru u pogledu elektricke i mehanicke izvedbe. Tipska oznaka sastoji se iz skupine slova i brojki cije je znacenje odredeno internim tvornickim standardom. 2.4. Motors designation and nameplates Each motor is marked with a type designation that contains basic data about the motor regarding electrical and mechanical construction. Type designation consists of a group of letters and numbers where meaning is determined by an internal manufacturer's standard.
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Natpisne plocice Svaki motor iz proizvodnog programs opremljen je natpisnom plocicom na kojoj se nalaze osnovni podaci o proizvodu i deklarirani nazivni elektricki podaci za doticni proizvod. Svaki motor u Ex zastiti pored osnovne natpisne plocice ima na kucistu dodatnu plocicu s podacima o vrsti protueksplozijske zastite. Each motor from the product range is delivered with a nameplate with basic information about the product and rated electrical data. Every motor with Ex-protection, along with the basic nameplate is delivered with an additional plate on its housing, conducting information about...
Open the catalog to page 11All KONČAR - MES Ltd. catalogs and technical brochures
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