IECEx Certificate of Conformity Annexe

Transcription

1 Equipment The Squirrel Cage Induction Motor Frames 280 to 315M are totally enclosed fan cooled (TEFC) motors with integral cast cooling fins on frame and end shields. They have winding designs which are suitable for use on 200 to 690 Volts, 50 Hz /60 Hz power systems and incorporate windings with double enamelled class F or class H insulation, which are impregnated with an insulating varnish. The enclosures are made of high grade cast iron with foot and/or D Flange mounting for horizontal or vertical shaft axis up or down. The external fan is of non-sparking construction and is made of cast iron or bronze. They are bi-directional axial flow types with option for uni-directional on 2 pole motors, for vertical shaft down mounted option motors are fitted with canopy over fan cover inlet. The terminal box is mounted on the right hand side viewed from drive end with option for left hand side. All terminal boxes are sealed with one-piece neoprene gasket between frame, box and gland plate. Variations to sealing arrangements are made to meet the clientspecified IP Code requirements. Motors are fitted with PTC thermistors protection within windings with the leads terminated in the main terminal box. The Ex td version of the motors have gaskets glued and additional component machining as per certified drawings. Lifting eyebolt holes are also sealed and alternative grease seals are used at the shaft/bearing areas. These features can also utilised to achieve optional IP56 / IP66 ratings on Ex na and Ex e motors. Optionally the equipment may be supplied with one or more of the variants: a) Auxiliary Terminal Boxes mounted on the sides of the Main Terminal Box to facilitate connection to: i) Anti-condensation heaters rated for operation up to 240 volts ii) PTC Thermistors iii) Resistance Temperature Devices (RTD's) iv) Thermocouples v) Auxiliary circuits connected via auxiliary terminal block as detailed in certified drawing lists. b) Drain plugs of porous material fitted to the NDE and DE end-shields or motor frame, according to the motor mounting position. Provision is also made for fitting plugs to the end-shields at the lowest point when the motor is mounted vertically. c) Mechanical attachments for the fitting of bearing condition monitoring devices. d) Alternative ball, roller or angular contact bearings to suit the drive application. e) Weather cover. f) Double shaft extension. g) Non-standard shaft dimensions. h) The retrofitting of Auxiliaries after the stator has been varnished. i) Alternative sealing arrangements to provide for the IP classifications listed in Table 1. j) Alternative supply from a variable voltage variable frequency (VVVF) drive with alternative windings suitable for use in conjunction with a (VVVF) drive for Ex n and Ex td motors only. k) Alternative cable entries as detailed in the certified drawing list with option for blank gland plate. Page 1 of 6

2 Table 1: Summary of IP Classifications Type of Explosion Protection IP Classification Temp Amb Ex e IP55 or IP56 or IP66 40 C (Tamb.) Ex na IP55 or IP56 or IP66 55 C (Tamb.) Ex td IP66 55 C (Tamb.) Frame Table 2: Summary of Certified Equipment (2-pole and 4-pole) 2-pole Configuration 4-pole Configuration kw (50Hz) Voltage Frame kw (50Hz) Voltage 280S S M 110 Up to and 280M 110 Up to and 315S 132 including 315S 132 including 315M 315M V 315M 315M V Frame Table 3: Summary of Certified Equipment (6-pole and 8-pole) 6-pole Configuration 8-pole Configuration kw (50Hz) Voltage Frame kw (50Hz) Voltage 280S 55 Up to and 280S 45 Up to and 280M 75 including 280M 55 including 315S V 315S V 315M M M 132 Notes to Tables 2 and 3: 1) Motor Types are detailed in Table 4. Where motor type is not listed then kw rating / speed applies to all Motor Types. 2) For t E times, refer to Motor Type as detailed in Table 4 and te times calculations as detailed in the relevant drawing for Motor Type from the Certified Drawing Lists. 3) A suffix letter to frame size maybe added for indication of A = 2 pole, B = 4~8 pole direct drive, C = 4~8 pole direct / belt drive. 4) The electrical rating of the equipment at 60 Hz can be 1.15 times the value given in Tables 2 and 3. Page 2 of 6

3 Table 4: Motor Types / Levels MOTOR TYPE - HORIZONTAL FOOT HORIZONAL FOOT / FLANGE MOTOR TYPE VERTICAL FLANGE / HORIZONTAL FLANGE Protection Standard IE1 High IE2 Premium IE3 Standard IE1 High IE2 Premium IE3 Ex e AEEBXE AEHBXE AEMBXE AEVBXE AEUBXE AEMVXE Ex na AEEBXJ AEHBXJ AEMBXJ AEVBXJ AEUBXJ AEMVXJ Ex td AEEBXD AEHBXD AEMBXD AEVBXD AEUBXD AEMVXD FRAME 280 ~ 315M 280 ~ 315M 280 ~ 315M 280 ~ 315M 280 ~ 315M 280 ~ 315M Conditions of Certification: 1. Where Ex e motors are applied as variable speed (VVVF) drives, each motor and its specified controller shall be tested as a combination unit in accordance with IEC , IEC , TECO test procedures and the duty cycle for each application to ensure that the limiting temperature and temperature class are not exceeded. 2. For Ex e applications, the electrical protection shall be set in accordance with the t E time for each motor given in the relevant drawing from the Certified Drawing list, depending on motor type as detailed in table Where Ex na motors are applied as variable speed (VVVF) drives, either each motor shall be type-tested for this duty in association with the specified converter and the protective devices provided or the motor temperature-rise shall be calculated in accordance with IEC and IEC for the duty required/specified to ensure that the limiting temperature and temperature class are not exceeded. 4. Where Ex td motors are applied as variable speed (VVVF) drives each motor shall be fitted with at least three thermistors, one in each phase having a reference temperature so as to ensure that the winding insulation is adequately protected against overheating for the insulation used, and supply is disconnected before its limiting temperature has been exceeded under the worst conditions of operation. The temperature class shall not be exceeded. 5. Where anti-condensation heaters are fitted, the supply to the heaters shall only be switched on after the main supply to each motor has been disconnected. Page 3 of 6

4 Drawings Relating to Issue 0: Manufacturer s Documents Document / Drawing No.: Page/s: Title: Motor range M Revision Level: Date: (yyyy-mm-dd) 3A040K A040K A040K A040K B040Q538 1 Schematic drawing Typical Stator & Rotor & Shaft materials B040Q550 1 Name Plate and Label Position (Frames ) B040Q549 1 Air Gap Calculation & relative data Motor Type - Ex e, Ex n, Ex td A040K552 1 Gaps Between Moving & Non Moving Parts Motor Type - Ex e, Ex n, Ex td A040K551 1 Gaps Between Moving & Non Moving Parts Motor Type - Ex e, Ex n, Ex td B040L577 1 Schematic drawing Terminal Box Motor Type Ex e - Ex n - Ex td (for Frame , 6 leads) B040L578 1 Schematic drawing Terminal Box Ex e - Ex n - Ex td (for Frame , 3 leads) B040T003 1 Schematic drawing Terminal Box Ex e (for Frames , 6 leads-cast Iron) B040L580 1 Schematic drawing Terminal Box Motor Type Ex e, Ex n & Ex td (for Frames ) B040Q944 1 Ex e - Ex n - Ex td (for Frames , 2 PCS B040T014 1 Ex e - Ex n - Ex td (for Frames , 1 PCS B040T013 1 Ex e - Ex n - Ex td (for Frames , 2 PCS B040T015 1 Ex e - Ex n - Ex td (for Frames , 1 PC B040X993 1 Terminal Box Seat Assy Modification (IP55 for Frames ) Page 4 of 6

5 Manufacturer s Documents Document / Drawing No.: Page/s: Title: Revision Level: Date: (yyyy-mm-dd) 3B040X994 1 Outlining Dimensions Terminal Box Seat Assy Modification (IP66 for Frames ) B040X992 1 Outlining Dimensions Terminal Box Seat Assy Modification (IP 55) B040Z004 1 Outlining Dimensions Terminal Box Seat Assy Modification (IP 55) B040Q945 1 Ex n - Ex td (for Frames , 6 leads-cast Iron) 3B040Q946 1 Schematic drawing Terminal Box motor Type - Ex n - Ex td (for Frames , 3 leads-cast Iron) 3A970C008 1 Wire Connecting Seat (Ex n and Ex td for Frames , 6 leads) A970C018 1 Wire Connecting Seat (Ex n and Ex td for Frames , 3 leads) B040U663 1 Cable Entries for frames B040U664 1 Cable Entries for frames B040X997 1 Cable Entries for frames B040X953 1 Cable Entries for frames B040X493 1 Schematic drawing bronze grease flinger A040X124 1 Creepage & Clearance distances (for frames ) Common drawings/documents 3B040Z039 1 Outlining Dimensions Bearing RTD S Resistance temperature detector Stick type S9785 series K R IECEx Ex e te time calculation list R Phase Low voltage squirrel cage motors hazardous area Ex e IEC design N Continuous duty V Electrical parameters 31057R ANTI-CONDENSATION HEATER INFORMATION R Increased Safety Type e ANTI- CONDENSATION HEATERS FOR ELECTRIC MOTORS AND GENERATOS 31057R TECO Design data Continuous output under converter ( self cooled Ex n/ Ex e*/ Ex td TEFC IC411) 31049R Outline dimensions name plate R Outline dimensions name plate R Outline dimensions name plate Page 5 of 6

6 Variations permitted by Issue 1: 1. To add Baseefa QAR GB / To include 2P, Frame 315M, 185kW and 4P 315M, 185kW models to the certified equipment, which were both omitted in the previous issue of the certificate. Table 2 of this has now been amended to show these additional models. 3. To correct the marking for ExtD, this now shows ExtD A21 T C (Tamb), was ExtD A21 55 C (Tamb), 4. To correct TECO Australia Pty Ltd postcode, this now shows 2164, was Condition of Certification relating to Issue 1: All previous condition still applies. Page 6 of 6