medium range motors
TRANSCRIPT
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WELCOME
TO
PRESENTATION
ON
MEDIUM RANGE MOTORS
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IMM PRODUCT RANGE
SCIM
2 POLE TO 14 POLE
415 V TO 11 KV
150 KW TO 2000 KW
TETV,CACA,CACW,SPDP
50 Hz/60Hz
VPI & RESIN RICH
SAFE,Ex(e),Ex(N),Ex(d),Ex(p)
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SRIM
4 POLE TO 10 POLE
3.3 TO 11 KV
200 KW TO 1400 KW
TETV,CACA,CACW,SPDP
VPI & RESIN RICH
APPLICATION
FAN,PUMP,MILL,COMPRESSOR,CRUSHER,CONVEYOR,ROLLING
MILL,KILNS, SEPARATOR DRIVES ETC.
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TECHNICAL SPECIFICATION FOR INDUCTION M/C
1) MECHANICAL OUTPUT IN KW
2) FREQUENCY IN HZ AND VARIATION
3) RATED VOLATGE AND PERMITTED VARIATION
4) SPEED AND ITS VARIATION
5) CLASS OF INSULATION
6) SITE AND OPERATING CONDITIONS
7) TYPE OF DUTY
8) AMBIENT TEMP./ WATER TEMP.
9) HAZARDOUS AREA CLASSIFICATION
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10) DIRECTION OF ROTATION
11) SCIM/SRIM
12) LOAD DEATAILS : LOAD INERTIA(GD2/WR2) AND T/S CURVE
13) TYPE OF COUPLING(RIGID/FLEXIBLE/PULLEY/FLUID)
14) METHOD OF COOLING
15) TYPE OF PROTECTION
16) DETAILS OF SHAFT EXTENSION
17) METHOD OF STARTING
18) FAULT CAPACITY AND DURATION OF FAULT
19) ANY SPECIFIC REQUIREMENT
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CONSTRUCTIONAL FEATURES OF INDUCTION
MOTORS.
1) METHOD OF COOLING
2) VENTILATION
3) STATOR4) ROTOR
5) ENDSHIELD
6) BEARINGS
7) SLIPRING AND BRUSHES8) TERMINAL BOXES
9) ACCESSORIES
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FRAME DESIGNATION
THIS CONSISTS OF 13 ALPHA-NUMERIC CHARACTERS BUTPRIMARILY FIRST EIGHT ARE MOSTLY USED.
A) 1ST CHARACTER ROTATING ELECTRICAL M/C.
B) 2ND AND 3RD TYPE OF FRAME
LA - TETV SCIM
MA TETV SCIM Ex(e)
MJ TETV SCIM Ex(d)
LS TETV SRIM
RA SPDP SCIM
RS SPDP SRIM
RN CACW SCIM
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SN CACW SCIM Ex(e)
RU CACW SRIM
RQ CACA SCIM
RB CACA(FV UNIT FOR EXT. CKT. ONLY) SRIM
RC CACA(FV UNIT FOR BOTH INT. AND EXT. AIR CKT.) SCIM
RD CACA(FV UNIT FOR BOTH INT. AND EXT. AIR CKT.) SRIM
SQ CACA SCIM Ex(e)
C) 4TH STANDS FOR THE SERIES DESIGN
D) 5TH AND 6TH CENTER HEIGHT IN CM
E) 7TH CORE LENGTH VARIATION
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F) 8TH NO. OF POLES
G) 9TH DESIGN STATUS
H) 10TH BREAK AWAY LOAD TORQUE
I) 11TH VOLTAGE RANGE AND FREQUENCY
J) 12TH
SHAFT ORIENTATIONK) 13TH FOR SPECIAL REQUIREMENT
EXAMPLE : 1LA7560-4
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COOLING ARRANGEMENT(IEC 34-6)
NOTATION - ICXXXXX
A) 1ST CKT. ARRANGEMENT
B) 2ND PRIMARY COOLANT
C) 3RD METHOD OF MOVEMENT OF PR. COOLANT
D) 4TH SECONDARY COOLANT
E) 5TH METHOD OF MOVEMENT OF SEC. COOLANT
EXAMPLES :
IC0A1 ORIC01 FOR SPDP / 1RA & 1RS
IC5A1A1 ORIC511 FOR TETV / 1LA7 & 1LS7
IC4A1A1 OR IC411 FOR TEFC / 1LA4
IC 6A1A1 ORIC611 FOR CACA / 1RQ
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IC6A1A6 ORIC616 FOR CACA WITH FV UNIT FOR EXTERNAL
AIR CIRCUIT / 1RB IC6A6A6 ORIC666 FOR CACA WITH FV UNIT FOR BOTH INT.
AS WELL AS EXT. AIR CIRCUITS. / 1RC
IC8A1W7 ORIC81W FOR CACW / 1RN & 1RU
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ENCLOSURE PROTECTION (IEC 34-5)
NOTATION IPXX
1ST PROTECTION AGAINST SOLID FOREIGN OBJECTS
2ND PROTECTION AGAINST HARMFUL EFFECTS DUE TO
INGRESS OF WATER
EXAMPLES :
1) IP23
DIGIT PROTECTION
2 CONTACT WITH OR APPROACH TO LIVE OR MOVING
PARTS INSIDE THE ENCLOSURE BY FINGERS OR SIMILAR
OBJECTS NOT EXCEEDING 80 MM IN LENGTH
INGRESS OF SOLID OBJECTS EXCEEDING 12 MM IN DIA
3 WATER FALLING AS A SPRAY AT AN ANGLE UP TO 60 DEG
FROM THE VERTICAL SHALL HAVE NO HARMFUL EFFECT
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2) IP 55
DIGIT PROTECTION
5 INGRESS OF DUST IS NOT TOTALLY PREVENTED BUT DOES
NOT ENTER IN SUFFICIENT QUANTITY TO INTERFERE WITH
SATISFACTORY OPERATION OF THE M/C.
5 WATER PROJECTED BY A NOZZLE AGAINST THE M/C FROM
ANY DIRECTION SHALL HAVE NO HARMFUL EFFECT.
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TOTALLY ENCLOSED TUBE VENTILATED
(TETV) MOTOR
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EXPLODED VIEW OF TETV CONSTRUCTIONS
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EXPLODED VIEW OF TETV CONSTRUCTIONS
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GENERAL ARRANGEMENT OF TETV SLIP RING INDCUTION MOTOR
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R SERIES CACW MOTOR
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CACA SCIM WITH SHAFT MOUNTED FANS
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LINE-7 CACA MOTOR
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EXPLODED VIEW
OF
LINE 7
1R SERIES
MOTOR
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R & H SERIES VENTILLATION ARRANGEMENT
SQ. CAGE INDUCTION MOTORS
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VENTILATION ARRANGEMENT FOR SRIM
CACA (1RR CONSTRUCTION)
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FORCED VENTILATED CACA VFD FED SCIM FOR KILN
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900 KW, 6 Pole, 690 V, CACA squirrel cage induction motor fed
through VFD for Constant Torque KILN application
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SRIM WITH CACA COOLER WITH FORCED VENTILATION
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GENERAL ARRANGEMENT FOR CACA SRIM WITH SHAFT MOUNTED EXT. FAN
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FORCED VENTILATED CACA SRIM FOR CONSTANT TORQUE APPLICATION
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WATER COOLED AND FORCED VENTILATED MOTOR FOR KILN APPLICATION
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H-COMPACT 1LA4 SERIES TEFC MOTOR
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VENTILATION ARRANGEMENT FORH-COMPACT MOTOR
http://var/www/apps/conversion/current/tmp/scratch18214/hcompactpres_NTPC.ppthttp://var/www/apps/conversion/current/tmp/scratch18214/hcompactpres_NTPC.ppt -
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THANKS