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WEGeuro –  Indústria Eléctrica S.A. 

 

19 

 

5.10  Unused cable entries of main terminal box, auxiliary terminal box and bearing 

thermal protections, 

must be closed with ATEX / IECEx certified threaded 

plugs 

with the same protection (Ex d IIB, Ex d IIC, Ex e II, Ex d I or Ex e I) of 

the terminal boxes. 

 

5.11  Motors with flying leads must be connected out of hazardous area or with an 

approved protection way or system. 

 

5.12  Motors fitted with angular contact ball bearings should not be allowed to run at 

no load and must be used in the mounting form IM engraved on the nameplate. 
(see 

IM 

in the nameplate). 

 

5.13  Motors with sleeve bearings  (not  foreseen for IIC group)  must be directly 

coupled to the driven machine. The pulley/belt drive system is not 
recommended for this type of motor. 
When the motor is coupled to the driven machine take care to the axial float of 
the motor sleeve bearing, of driven machine as well as the maximum axial 
tolerance of the coupling.  
This type of motors are not allowed in any circumstances to work  with axial 
thrusts on the sleeve bearings as they are not designed to support this kind of 
loads.  

 
 

6.    MOTOR PROTECTIONS  
 

6.1  

We recommend motor protection by using overloads and short-circuit relays. 

 

 

6.2 

Motors must be earthed, using either the earting screw inside the terminal box 
or fixed to the motor frame. 

6.3 

If motors are fitted with thermal protections, 

they must be connected

 in order 

to guarantee that maximum allowable surface temperature of the motor is not 
exceeded.  

   

In case of Pt100 or thermocouples, tripping temperature must be regulated to 
the values indicated by WEGeuro. 

Particularly motors supplied via Variable Speed Drive must be fitted with 
thermal sensors on windings and, eventually, on one of the bearings. The 
connections of these thermal protections 

are compulsory

.  These motors are 

equipped with flameproof terminal boxes Ex d only. 

On 2 speed motors both windings shall be individually protected. 

 

6.4 

If anti-condensation heaters are fitted, they can not be connected unless  the 
motor is switched off and cold. 

 

 
 

6.5 

In the case of motors with forced ventilation or without a fan working in an air 
flow, a device must avoid motor running without ventilation. 

Summary of Contents for BFG8 400

Page 1: ...Manual de Instru es Instructions Manual Instructions de Service Ref 110 11 Rev 03 06 2009 BFG C 8 400 BFG C 8 450 W22XB C 355 W22XB C 500...

Page 2: ...tru es Motores Ass ncronos Trif sicos Antideflagrantes 2 Instructions Manual Asynchronous Three Phase Flameproof Motors 13 Instructions de Service Moteurs Asynchrones Triphas s Antid flagrants 24 Ref...

Page 3: ...motores WEG s o concebidos para serem montados postos em funcionamento e utilizados de acordo com as regras deste Manual de Instru es o qual deve ser lido conjuntamente com as normas EN 60079 14 2003...

Page 4: ...est o de acordo com o pedido na encomenda Contactar os nossos Servi os Comerciais ou a F brica se forem detectadas n o conformidades 2 2 Estes motores s o fabricados para funcionar num ambiente que ap...

Page 5: ...examinadas periodicamente e se necess rio nova camada deve ser aplicada nomeadamente nas juntas das caixas de terminais se estas j foram abertas 3 5 Para per odos de armazenagem longos recomenda se qu...

Page 6: ...para funcionar a uma temperatura ambiente de 20 C a 40 C Para temperaturas fora dos limites indicados nas chapas de caracter sticas a f brica dever ser consultada para verificar se s o requeridas exe...

Page 7: ...os esquemas de liga o inclu dos na caixa de terminais face tens o dispon vel e ou velocidades pretendidas Para informa o os esquemas de liga o mais comuns est o indicados nas p gs 35 36 5 3 Os enrolam...

Page 8: ...caixa auxiliar e das caixas das protec es de rolamentos chumaceiras devem ser sempre obturadas com tamp es roscados com certifica o ATEX IECEx e com protec o Ex d IIB Ex d IIC Ex e II Ex d I ou Ex e I...

Page 9: ...funcionamento do motor principal na aus ncia de ventila o Para evitar que a temperatura m xima de superf cie seja excedida as protec es t rmicas do motor principal e do motor auxiliar devem ser ligad...

Page 10: ...e as necess rio verificar o bom estado das juntas As dimens es das juntas s o o seu comprimento e o interst cio os quais s o controlados a 100 durante a fabrica o dos motores As juntas n o podem ser m...

Page 11: ...en o em caso de funcionamento anormal da instala o G Atmosferas explosivas com g s Ex S mbolo para o material el ctrico correspondente a um ou mais modos de protec o segundo as Normas Europeias d Inv...

Page 12: ...rodutos Ex I Grupo de material destinado a locais subterr neos em minas e nas partes das instala es de superf cie colocadas em perigo pelo gris e ou poeiras combust veis M2 Categoria de aparelhos conc...

Page 13: ...rma o suplementar Endere o das filiais WEG em anexo 10 PE AS DE RESERVA Para encomendar uma pe a de reserva necess rio indicar Tipo de motor N mero de s rie do motor Designa o da pe a de reserva O tip...

Page 14: ...gned to be installed put into service and used in accordance with the characteristics included in this Instructions manual The following instructions must be read jointly with the standards EN 60079 1...

Page 15: ...2 These motors have been designed to work in atmospheres that present a risk of explosion It is therefore indispensable to carry out a very careful inspection of the material received as well as the...

Page 16: ...as shown in the picture 4 INSTALLATION 4 1 The rotors of the motors are dynamically balanced with half key For this reason the coupling to be fitted to the motor shaft end also has to be balanced with...

Page 17: ...position shaft down a protection canopy shall be fitted on fan cowl to avoid the ingress of water or solid objects through the fan grid protection 5 START UP 5 1 If the motors have been out of servic...

Page 18: ...f motors are fitted with Ex e terminal boxes with bushing insulators shunts must be assembled or disassembled as indicated in the instructions given in this manual in order to avoid that position of c...

Page 19: ...cumstances to work with axial thrusts on the sleeve bearings as they are not designed to support this kind of loads 6 MOTOR PROTECTIONS 6 1 We recommend motor protection by using overloads and short c...

Page 20: ...e cooling surfaces shall be cleaned periodically The intervals depend on the degree of pollution accumulation of dust in the air 7 4 The maintenance of flameproof motors is particularly important as A...

Page 21: ...be in accordance with the explosive atmosphere where the equipment will be used or in accordance with the certification type ATEX or IECEx and it may contain the following information For explosive at...

Page 22: ...pean standards d Enclosure with flameproof protection e Component with increased safety protection B Subdivision of group II C Subdivision of group II T4 Temperature class tD Protection by enclosure A...

Page 23: ...onditions for use Connection cable must be compatible with a temperature of __ C WEGeuro IND STRIA EL CTRICA S A Rua Eng Frederico Ulrich Sector V Apartado 6074 4476 908 Maia Portugal 9 2 Complementar...

Page 24: ...arations of Conformity are supplied with motors In the cases where the motor or terminal box certificate number have the suffix X is also included a special conditions for use for which special attent...

Page 25: ...angereuses une inspection et un entretien efficaces du mat riel doivent tre assur s 1 4 Les moteurs WEG sont con us pour tre mont s mis en service et utilis s conform ment aux caract ristiques reprise...

Page 26: ...que signal tique sont en accord avec celles demand es dans la commande Contacter nos Services de Ventes ou l usine s il y a des non conformit s 2 2 Ces moteurs sont fabriqu s pour fonctionner dans un...

Page 27: ...a tre si n cessaire appliqu e notamment dans les joints antid flagrants des bo tes bornes si celles ci ont d j t ouvertes 3 5 Pour des p riodes de stockage longues le rotor doit tre tourn p riodiqueme...

Page 28: ...n diff rente dans les plaques signal tiques Pour des temp ratures au dehors des limites indiqu s dans les plaques signal tiques du moteur l usine devra tre consult e pour v rifier s il faut faire des...

Page 29: ...et ou les vitesses moteurs plusieurs vitesses Pour information les sch mas de raccordement plus communs sont indiqu s dans les pages 35 36 5 3 Les enroulements des moteurs sont raccord s de telle fa...

Page 30: ...puissance de la bo te auxiliaire et des bo tes des protections des paliers doivent tre toujours ferm es avec des bouchons taraud s certifi s ATEX IECEx et avec le m me mode de protection Ex d IIB Ex d...

Page 31: ...avec ventilation forc e ou sans ventilateur travaillant dans un flux d air un dispositif doit s opposer au fonctionnement du moteur principal en l absence de ventilation Pour viter que la temp rature...

Page 32: ...85 C 8 D MONTAGE ET REMONTAGE Ces moteurs exigent des soins sp ciaux En particulier au d montage et remontage des pi ces il faut surveiller le bon tat des joints Les dimensions des joints sont la lon...

Page 33: ...appara tre qu en cas de fonctionnement anormal de l installation G Atmosph res Explosibles avec Gaz Ex Symbole pour le mat riel lectrique qui r pond un ou plusieurs des modes de protection suivant le...

Page 34: ...ge ATEX Marquage IECEx I M 2 Ex d I ou Ex de I Ex d I ou Ex de I Marque europ enne pour les produits Ex I Groupe d quipement pr vu pour une utilisation dans les parties souterraines des mines menac es...

Page 35: ...SIBLE PEUT TRE PR SENTE Information suppl mentaire Adresses des Filiales WEG en annexe 10 PI CES DE RECHANGE Pour demander une pi ce de rechange il faut indiquer Type du moteur Num ro de s rie du mote...

Page 36: ...36 ESQUEMA DE LIGA ES COMMON CONNECTION DIAGRAMS SCH MAS DE RACCORDEMENT PLUS COMMUNS...

Page 37: ...WEGeuro Ind stria El ctrica S A 37 ESQUEMA DE LIGA ES COMMON CONNECTION DIAGRAMS SCH MAS DE RACCORDEMENT PLUS COMMUNS...

Page 38: ...38...

Page 39: ...WEGeuro Ind stria El ctrica S A 39 Ref 110 11 Rev 03 06 2009 Ref 110 11 Rev 03 06 2009...

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