ABB MT Series Installation And Maintenance Instruction
Three phase asyncronous motor
Hide thumbs
Also See for MT Series:
- Installation, operation & maintenance manual (160 pages) ,
- Instructions manual (60 pages) ,
- Manual (48 pages)
Advertisement
Quick Links
Installation and maintenance instruction
Fläkt Woods three phase asyncronous motor
Manufacturer: ABB
Machine Instructions
NOTE!
These instructions must be followed to ensure
safe and proper installation, operation and main-
tenance of the motor. They should be brought to
the attention of anyone who installs, operates or
maintains this equipment. Ignoring the instruc-
tion may invalidate the warranty.
Declaration of Conformity
Declarations of Conformity with respect to the Low vol-
tage Directive 73/23/EEC amended by Directive 93/68
EEC are issued separately with individual machines.
The Declaration of Conformity also satisfies the require-
ments of a Declaration of Incorporation with respect
to the Machinery Directive 89/392/EEC, amended by
91/368/EEC, 93/44/EEC and 93/68/EEC.
Validity
The instructions are valid for the following ABB electrical
machine types, in both motor and generator operation.
series MT*, MBT*, MXMA,
series M2A*/M3A*, M2B*/M3B*, M2C*/M3C*, M2F*/
M3F*, M2L*/M3L*, M2M*/M3M*, M2R*/M3R*,
in frame sizes 63 - 400.
(Additional information may be required for some
machine types due to special application and/or design
considerations.)
Putting into service (starting)
Reception check
Immediately upon receipt check the machine for external
damage and if found, inform the forwarding agent with-
out delay.
Check all rating plate data, especially voltage and winding
connection (star or delta). The type of bearing is specified
on the rating plate from size 112 and larger.
Turn shaft by hand to check free rotation, remove trans-
port locking if employed.
Motors equipped with roller bearings: Running the
motor with no radial force applied to the shaft may
damage the roller bearing.
Motors equipped with angular contact bearing:
Running the motor with no axial force applied in the right
direction to the shaft may damage the angular contact
bearing.
Motors equipped with regreasing devices:
When starting the motor for the first time, apply at least
the specified quantity of grease until new grease forced
out of the grease outlet. For details see section "Machines
with relubrication system" on page 6.
Fläkt Woods
8265 GB 2011.10
Insulation resistance check
Measure insulation resistance before commissioning and
when winding dampness is suspected.
Resistance, measured at 25°C, shall exceed the reference
value, i.e.
10 M ohm (measured with 500 V dc Megger)
WARNING!
Windings should be discharged imme-
diately after measurement to avoid risk
of electric shock.
Insulation resistance reference value is halved for each
20 °C rise in ambient temperature.
If the reference resistance value is not attained, the winding
is too damp and must be oven dried.
Oven temperature should be 90°C for 12-16 hours followed
by 105°C for 6-8 hours.
Drain hole plugs, if fitted, must be removed during heating.
Windings drenched in seawater normally need to be
rewound.
Direct-on-line or star/delta starting
The terminal box on standard single speed machines
normally contains 6 winding terminals and at least one
earth terminal.
Earthing must be carried out according to local regulations
before the machine is connected to the supply voltage.
The v oltage a nd c onnection a re s tamped o n t he r ating p late.
Direct-on-line starting (DOL):
Y or Δ winding connections may be used. eg 660 VY, 380 VΔ
indicates Y-connection for 660 V and Δ-connection for 380 V.
Star/Delta starting (Y/Δ) :
The supply voltage must be equal to the rated voltage of
the machine in Δ-connection.
Remove all connection links from the terminal block.
For two-speed, single phase and special machines, supply
connection must follow the instructions inside the termi-
nal box.
Terminals and direction of rotation
Direction of rotation is clockwise when viewing the shaft
face at the machine drive end, when the line phase sequence
L1, L2, L3 is connected to the terminals as shown in the
figure 1.
To alter the direction of rotation, interchange the connec-
tion of any two line cables.
If the machine has a uni-directional fan, ensure that the
direction of rotation is according to the arrow marked on
the machine.
1
Specifications are subject to alteration without notice
Advertisement
Related Manuals for ABB MT Series
Summary of Contents for ABB MT Series
- Page 1 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB Insulation resistance check Machine Instructions Measure insulation resistance before commissioning and when winding dampness is suspected. NOTE! These instructions must be followed to ensure Resistance, measured at 25°C, shall exceed the reference safe and proper installation, operation and main- value, i.e. tenance of the motor. They should be brought to 10 M ohm (measured with 500 V dc Megger) the attention of anyone who installs, operates or maintains this equipment. Ignoring the instruc- tion may invalidate the warranty. WARNING! Windings should be discharged imme- diately after measurement to avoid risk Declaration of Conformity of electric shock. Declarations of Conformity with respect to the Low vol- tage Directive 73/23/EEC amended by Directive 93/68 EEC are issued separately with individual machines. Insulation resistance reference value is halved for each 20 °C rise in ambient temperature. The Declaration of Conformity also satisfies the require- ments of a Declaration of Incorporation with respect If the reference resistance value is not attained, the winding to the Machinery Directive 89/392/EEC, amended by is too damp and must be oven dried.
- Page 2 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB vary due to different outputs, mounting arrangements and auxiliary equipment. Operating conditions Check that eyebolts or the lifting eyes integrated with the The machines are intended for use in industrial drive motor frame are undamaged before lifting. Damaged applications. lifting eyes must not be used. Normal ambient temperature limits are -25 °C to +40 °C. Lifting eyebolts must be tightened before lifting. If needed Maximum altitude 1000 m above sea level. the position of the eyebolt must be adjusted with suitable Safety considerations washers. The machine is intended for installation and used by Ensure that proper lifting equipment is used and that the qualified personnel, familiar with relevant safety sizes of the hooks are suitable for the lifting lugs. requirements. Care must be taken not to damage auxiliary equipment and cables attached to the motor.direction of rotation is accor- Safety equipment necessary for the prevention of ding to the arrow marked on the machine. accidents at the installation and operating site must be provided in accordance with the local regulations. Machine weights Total machine weight can vary within the same frame size (center height) depending on different output, mounting WARNING! arrangements and added features.
- Page 3 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB Foundation WARNING! The purchaser bears full responsibility for preparation of Voltage may be connected at standstill the foundation. inside the terminal box for heating Metal foundations should be painted to avoid corrosion. elements or direct winding heating. Foundations must be even, and sufficiently rigid to with- stand possible short circuit forces. They shall be dimen- Connection diagrams for auxiliary elements are found sioned as to avoid the occurrence of vibration due to inside the terminal box cover. resonance. WARNING! Foundation studs The capacitor in single-phase motors Bolt the foundation studs to the feet of the motor and place a 1-to-2 mm shim between the stud and the feet. can retain a charge that appears across the motor terminals, even when Align the motor directly using appropriate means. the motor has reached standstill. Grout the studs with concrete, check, alignment and drill holes for locating pins. In frequency converter applications motor frame...
-
Page 4: Maintenance And Lubrication
Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB Fitting coupling halves and pulleys As a quide, adequate lubrication can be achieved for the Coupling halves and pulleys must be fitted using suitable following duration, according to L1 at ambient tempera- equipment and tools that do not damage the bearings. ture of 25 ° C. 32 000 - 45 000 duty hours for 4 pole machines.1) Never fit a coupling half or pulley by hammering into 16 000 - 26 000 duty hours for 2 and 2/4 pole place or remove it using a lever pressed against the body machines. of the machine. The shorter times apply to larger frame sizes. Mounting accuracy of coupling half : check that the clearance b is less than 0,05 mm and that the Depending on application and load conditions, see difference a1 to a2 is also less than 0,05 mm. See figure 3. applicable product catalogue. Hours of operation for vertical motors are half of the above values. Balancing Machines with relubrication system The rotor of the machine is dynamically balanced. - Page 5 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB Lubricants Frame Amount 3600 3000 1800 1500 1000 500-900 When regreasing, use only special ball bearing grease size of grease r/min r/min r/min r/min r/min r/min g/bearing with the following properties: Ball bearings - good quality grease with lithium complex soap and Lubrication intervals in duty hours with mineral- or PAO-oil...
-
Page 6: Environmental Requirements
Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB Spare parts For 60 Hz sinusoidal supply, add 4 dB(A) to the above When ordering spare parts, the full type designation and values. product code, as stated on the rating plate, must be For sound pressure levels with non-sinusoidal supplies, specified. contact ABB Sales Office. If the machine is stamped with a serial manufacturing Sound pressure levels for all machines in the above number, this should also be given. frame sizes having separate cooling systems and for series M2F*/M3F*, M2L*/M3L*, and M2R*/M3R*, are Environmental requirements indicated in separate specific Machine Instructions. Noise levels Smaller machines have a sound pressure level that not Rewinding exceeding 70 dB(A). Rewinding should always be carried out by qualified The following table shows catalogue values of sound repair shops. pressure levels at 1 m from the machine surface. Smoke venting and other special motors should not be rewound without first contacting ABB Motors. Guideline sound pressure level, dB(A) - Page 7 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB These instructions do not cover all details or variations in Motor trouble shooting chart equipment nor provide for every possible condition to be Your motor service and any trouble shooting must be met in connection with installation, operation or main- handled by qualified persons with proper tools and tenance. Should additional information required, please equipment. contact the nearest ABB Sales Office. TROUBLE CAUSE WHAT TO DO Motor fails to start Blown fuses Replace fuses with proper type and rating. Overload trips Check and reset overload in starter.
- Page 8 Installation and maintenance instruction Fläkt Woods three phase asyncronous motor Manufacturer: ABB TROUBLE CAUSE WHAT TO DO Motor vibrates Motor misaligned Realign. Weak support Strengthen base. Coupling out of balance Balance coupling. Driven equipment unbalanced Rebalance driven equipment. Defective bearings Replace bearings. Bearings not in line Line up properly.