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UMEB ASA Operation Manual
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UMEB ASA Operation Manual

Three-phase squirrel cage induction motors in flameproof enclosure ex d iic or ex de iic, frame size 63 - 355
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OPERATION MANUAL
Three-phase squirrel cage induction motors in
flameproof enclosure Ex d IIC or Ex de IIC
type ASA and E2-ASA frame size 63 - 355
Bucharest, Romania
104A, Timisoara Blvd., district 6
Phone: 0040 744 423 037 ; fax : 00400 31 425 12 01
e-mail:
office@umeb.ro

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Summary of Contents for UMEB ASA

  • Page 1 OPERATION MANUAL Three-phase squirrel cage induction motors in flameproof enclosure Ex d IIC or Ex de IIC type ASA and E2-ASA frame size 63 - 355 Bucharest, Romania 104A, Timisoara Blvd., district 6 Phone: 0040 744 423 037 ; fax : 00400 31 425 12 01 e-mail: office@umeb.ro...
  • Page 2 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355...
  • Page 3 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 OPERATION MANUAL Safety operating conditions for low voltage three phase asynchronous squirrel cage motors according to EC Relevant Directives When operating these motors have turning parts and hot surfaces. All the operations during the transport, putting into operation and maintenance of these motors have to be made by qualified and authorised persons.
  • Page 4 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 60079-31 – Explosive atmospheres - Part Equipment dust ignition protection by enclosure „t” - EN 60529 – Degrees of protection provided by enclosures (IP Code) - Directive 94/9/EC –...
  • Page 5 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 1.2.1 The environment may contain potential explosive mixtures made of air and one of the substances pertaining to group C, temperature class T3, T4, T5,...
  • Page 6 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 The motors can be fed from PWM frequency converters (VACON or similar) according to the torque/speed characteristic M=f(Hz) given in Annex 7 For that application the motors are equipped with direct ...
  • Page 7 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 The clearances in normal operation between the external fan and its hood, the motor shields and their fasteners, according to EN 60079- 0 par. 17.4 should be at least 1/100 from the maximum diameter of the fan but not less than 1 mm.

  • Page 8: Product Description

    Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355  3 or 6 bushings and optionally with one BT18 bushing for additional protective devices for the frame sizes 80 – 355. ...
  • Page 9 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 The motors up to frame size 250 are equipped with prelubricated bearings; regreasable bearings are used for motors with frame sizes 280 and 315.
  • Page 10 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Tightening Entry Minimum admissible Size torque Frame size thread supply cable diameter limits size [mm] [Nm] 26x16 15.5 26x19 18.5 35x18 17.4 IPE/PG 35x21 20.4...
  • Page 11 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Minimum admissible Tightening Entry Size supply cable Frame size torque limits thread size diameter [Nm] [mm] 30x16 15.5 M32x1.5 30x18 17.4 30x21 20.4 38x18 17.4...
  • Page 12 The tools are not included in the motors delivery inventory. The spare parts are listed in Annex 7 and are delivered at client’s request. Only original spare parts are allowed to be used for repairing of the ASA flameproof motors. Preparing for commissioning 6.1 Unpacking...
  • Page 13 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 6.2.3 the insulation resistance; if the value of winding insulation resistance below 20 MΩ, the motor should be dried. The drying could be carried out: ...
  • Page 14 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Be aware for adherence to Directive 94/9/EC also for the transmitting devices. They have to be ATEX certified too. 6.4.1 Flexible coupling It is the most frequent type of coupling, but special attention should...
  • Page 15 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 And they must be carried out on standstill machine, isolated and secured against reconnection only. Check safe isolation from supply ! Line cables and their installation shall adhere to EN 60079-14.
  • Page 16 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355  close the terminal box mounting the cover Warning ! The terminal boxes must always be tightly closed during motor operation. 6.6 Connection to earth terminal Is made by means of low resistivity multicore cable in accordance with labor safety rules.
  • Page 17 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 6.8.2.1 Screwed joints for electrical connections Tightening torque Thread [Nm] 15.5 6.8.2.2 Screwed joints strength class 8.8 only in components with higher strength (e.g. grey cast iron, steel)
  • Page 18 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 If a new test start proves that the motor works properly than it is ready to operation. 6.9 Stoppages If the motors remain out of service for a long period of time (more than a...
  • Page 19 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Fault Possible causes Remedy Check connection at the d. Mains low frequency mains a. Faulty contact in a connection point of the Check the electric circuit...
  • Page 20 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Dismounting of the terminal box (see fig. 1 and 2)  dismount the terminal box cover (1) enabling thus the access to the screws fixing the supply cable to the terminals (bushings).
  • Page 21 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 WARNING ! During dismounting or mounting operations special care must be taken to avoid the scratching or damaging the surfaces forming flameproof joints.
  • Page 22 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355  Especially for motors intended for the use in Zone 21 or 22, to avoid unpermissible surface temperatures, there is to consider the maximum thickness of dust layers upon the machine surface (maximum 5 mm) and the free air inlet for the cooling system.
  • Page 23 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 - check that no abnormal noise or vibrations occured With the motor at standstill: - check the winding insulation resistance; clean and dry the winding...
  • Page 24 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Packing – The packing type depends on the means of transport and should prevent motor from damaging during the transport. Transport – The motors should be transported in tarpaulin vans or trucks, fastened against their decks.
  • Page 25 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 12. Timetable with completion and greasing intervals of regreasing ball bearings Table Horizontal mounting IM B Frame Bearing Operating Bearing Regreasing Compl. Grease...
  • Page 26 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Frame Bearing Operating Bearing Regreasing Compl. Grease size conditions operating interval interval quantity temperature [hours] [hours] Speed Hour/day [rpm] [hours] [C] High ÷...
  • Page 27 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Frame Bearing Operating Bearing Regreasing Compl. Grease size conditions operating interval interval quantity temperature [hours] [hours] Speed Hour/day [rpm] [hours] [C] High ÷...
  • Page 28 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Frame Bearing Operating Bearing Regreasing Compl. Grease size conditions operating interval interval quantity temperature [hours] [hours] Speed Hour/day [rpm] [hours] [C] ÷ Normal ÷...
  • Page 29 CONNECTION OF THE SUPPLY CABLES TO THE TERMINALS Annex 1 1. Direct starting. The motor has DELTA (Δ) connection Frame size 63 - 355 Direct starting. The motor has STAR (Υ) connection Frame size 63 – 355 Frame size 63-160 Annex 2 Fig.1...
  • Page 30 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Frame size 180-250 Fig.2 Frame size 280 - 355 Fig.3...
  • Page 31 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Frame size 280 - 355 Fig.3...
  • Page 32 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Annex 4 The permissible radial forces on the shaft end for 20.000 hours bearings life Frame Poles Frame Poles Frame Poles size size...
  • Page 33 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Annex 5 ALUMINUM BASE GREASES LUBRICERP AR90 Al 1, LUBRICERP AR 95 Al 3 1. GENERAL INFORMATION Scope The present document refers to greases containing aluminium stearate and mineral oil.

  • Page 34: List Of Spare Parts

    Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 4.2 Upon delivery, a Declaration of Conformity will accompany each batch. Annex 6 LIST OF SPARE PARTS 1. Ball bearings Frame size Drive end...
  • Page 35 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Motor Terminal plate size Bushing size type 315SM/ML 3.Gland piece Gland Sealing ring Size size size IPE16 20x11 26x10 26x13 IPE 21 26x16...
  • Page 36 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 57x42 57x45 Gland Sealing ring Size size size M25x1.5 23x11 30x10 30x13 M32x1.5 30x16 30x19 30x16 M32x1.5 30x18 30x21 38x18 38x21 M40x1.5 38x24...
  • Page 37 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 - Any request of spare parts has to indicate the type, power and speed of the motor -UMEB-SA recommends to be used only original spare parts for a good motor...
  • Page 38 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355 Annex 7...
  • Page 39 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355...
  • Page 40 Three-phase squirrel cage induction motors in flameproof enclosure type ASA and E2-ASA frame size 63 – 355...

This manual is also suitable for:

E2-asa