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Three phase synchronous or asynchronous
Integrated oil system
Semi-hermetic sealing
20 to 100 krpm
DBS ‘IAM’ Series High-Speed Motors and Generators
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DBS ‘IAM’ Series — Integrated
Ancillaries Motors and Generators
Fields of Application
Standalone high speed rotating machinery of all types
especially where direct overhang of driven or driving
components is required. The IAM series is equally suitable
for motor or generator applications.
Design
High power density and high speed capability with liquid
cooling and oil lubricated ball bearings as standard.
All machines exceed IE4 [Super premium efficiency] as per
EU motor efficiency standard IEC/EN 60034-30-1: 2014.
All machines are IP54 rated (up to IP67 on request).
3 phase, permanent magnet or induction machines available.
Proprietary VFD drives available from a number of suppliers
to suit customer compliance requirements.
Proprietary front flange with captive ‘O’ ring seal provides
precise, concentric location.
All key mechanical ancillaries incorporated directly into
machine:
An integrated oil system driven directly by the magnetic
rotor through a worm reduction gear.
Built in oil filter and oil cooler.
Key sensors are incorporated into the machine and
terminated in a common terminal box.
Special Customer Requirements
Where rotational speed, power or other operational
requirement fall outside our normal range of machines, DBS
will be pleased to quote for bespoke designs.
Operating Range
See page 6 for full operating range and performance graphs.
Nominal Power: 1-150kW
Nominal Speed: 20-100kRPM
Operating temperature: -60/+70°C
Operating pressures up to 40barg (580psi)*
* Dependant on the compatibility of working fluid of the driven machine with the
bearings.
Oil cooled hollow magnetic
rotor. Oil fed into base of rotor
forms thin film for highly
effective cooling. Oil escapes
through radial holes and feeds
both bearings with lubricant.
Super precision, angular
contact ball bearings support
magnetic rotor and overhung
driven components. Bearings
scan be sized to withstand
radial and axial loads to meet
customer requirements if
required.
Air blown seal option with
integrated filter regulator and
control valves where working
fluid must be kept out of motor
e.g. steam compressor or
corrosive gas duties.
Integrated terminal box
includes DIN rail terminals for
all power and sensor
connections. Terminal box
encloses monitoring sensors—
no external sensors to damage
or break off.
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DBS standard flange face provides
accurate location concentric and square
with rotor shaft. Incorporates captive ‘O’ ring
seal rated to body design pressure.
Built in oil filter
using industry
standard filter
cartridges.
Water, oil or glycol
cooling to remove
stator heat. Coolant
is fed first through
hairpin heat
exchanger mounted
inside oil tank for
simultaneous oil
cooling.
Integral gear oil
pump driven directly
by magnetic rotor
through worm
reduction gear. Oil is
drawn from integral
oil tank through
suction strainer.
Keyed shaft end provided as
standard. Special shaft ends to
suit customer requirements
available on request.
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IAM
–SERIES
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4
Terminal Box
An integrated terminal box has been included
which is designed for EMC compliance
The box contains: accelerometer; side
mounted, pressure rated lead through
terminals for power and stator temperature
connections; once per rev speed sensor; DIN
rail terminals for external connection to
inverter and other control equipment; oil level
switch; oil temperature sensor.
Integrated Oil Pump
An internal oil pump is required to avoid
leakage. A positive displacement gear
type is used to maintain flow rate at low
speed. The pump is driven directly from
rotor with a worm/wormwheel speed
reducer – this avoids a separate electric
machine.
IAM –SERIES
Bearings
Different applications require different
bearings due to varying end loads. For this
reason, we have several top end designs for
each of our motor sizes and can design
bespoke solutions.
Mechanical Features
Air blown seal
In applications where the motor lubricant
must be isolated from the working fluid of
the machine it is driving, an air blown seal
is used.
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Variable Frequency Drives (VFD)
High-speed machines require specialist drives
to maximise the motor’s performance, avoid
excess heat which can damage the motor.
Over several years of development, we have
identified a small selection of inverters from
two major industrial suppliers that work
efficiently at frequencies well above 600 Hz.
These drives are specifically tuned and
commissioned with our motors.
Electrical Features Sine wave filters
Sine wave filters are used to convert the
output signal of the VFDs to a smooth
sinewave shape, this eliminates unwanted
harmonics and reduces voltage and current
ripples in the motor.
This is advantageous for many reasons: it
significantly improves the life span of the
motor; reduces current harmonics on the
rotor, keeping the rotor cooler; improves the
power factor; reduces iron losses in the
stator; and reduces acoustic noise of the
motor.
For high speed applications which the inverter
switching frequency should be above 12 kHz,
a sine wave filter is required to improve the
system efficiency and protect the motor
against voltage and current ripples. DBS has
a range of custom made sine wave filter for
the motors it designs.
EMC filters
To comply with IEC 610000 Electromagnetic
compatibility standard EMC Filters are used.
These are employed to minimise the amount
of radio interference on the mains and other
electronic equipment's close by as well as
protecting other connected equipment.
DBS employs a range of EMC filters matching
the high speed drives supplied.
Before Voltage After
Current
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Performance Curves
Asynchronous/Induction 35 kW, 50kRPM Synchronous/Permanent Magnet 25 kW, 50kRPM
Selection Chart
The table below shows the range of powers and speeds
that we offer. Standard frame sizes and/or machine
properties can be adjusted to suit customer
requirements. The examples are there to show
indicative lengths. Please note: All values are indicative,
it is possible to exceed powers and speeds in certain
cases. Please direct enquiries to
IAM –SERIES
Frame Size* Rated Power
Range [kW]
Maximum Speed [rpm] Example Rating
Dimensions [mm]
Grease Oil A B C
M80 1 - 10 75,000 110,000
2.35kW @110kRPM
80 h6 194
240
3.5kW @110kRPM 255
4.7kW @100kRPM 270
6.3kW @90kRPM 290
M125 5 - 30 55,000 75,000
10kW @75kRPM
125 h6 224
310
16kW @68kRPM 330
21kW @60kRPM 350
29kW @55kRPM 380
M170 10 - 60 45,000 70,000
12kW @60kRPM
170 h6 305
350
20kW @50kRPM 380
27kW @45kRPM 410
35kW @45kRPM 450
M240** 30 - 150 30,000 45,000
55kW @50kRPM
240 h6 365
440
85kW @45kRPM 480
105kW @40kRPM 520
125kW @40kRPM 560
Length dimension C has been provided for water cooled motors, air cooled versions are also available.
* Special custom sizes such as M60 & M100 available upon request. ** Custom larger motors are also available upon request.
Typical performance curves for our synchronous and asynchronous machines are shown
below. A set of performance curves and equivalent circuit are supplied with each quotation.
7
Order Code Example: IAM80-S2-10-50-CVO-20-AAA-XXX
The scope of supply would be: IAM series motor/generator; DBS 80 frame size; synchronous; 2-pole, 10kW;
50krpm; 400 V motor nominal voltage; vertical mount; oil lubricated bearings; 20 mm single angular contact front
locating bearing; spring preload single singular contact, M20 conduit connection ; 1/2” BSPT threaded cooling
connections; no customer options
Order Code & Scope of Supply
IAM –SERIES
Motor Series
M—Standard
IAM—Integrated
Orientation
H—Horizontal
V—Vertical
Lubrication
G—Grease
O—Oil
Front Locating
Bearing
A—Spring Preload
Single Angular
B— Spring
Preload Double
C— Solid Preload
Double Angular
D— Customer
specified design
Electrical Conduit
Thread
A—M16
B—M20
C—PG9
D—PG11
E—1/2” NPT
Cooling
Connections
A—3/8” BSPF
B—1/2” BSPF
C—3/8” BSPT
D—1/2” BSPT
E—3/8” NPT
F—1/2” NPT
Front Bearing
Size
Nominal Power
(kW)
Nominal Speed
(kRPM)
Motor Nominal
Voltage
A—220V 50Hz
B—380V 50Hz
C—400V 50Hz
D—500V 50Hz
E—660V 50Hz
D—690V 50Hz
C V O 20 A 10 50 A A
Frame Size
80
125
170
240
Type
S—Synchronous/
Permanent Magnet
A—Asynchronous/
Induction
S IAM 80 - 2
Number of poles
2
4
6
XXX
Optional
Customer Specific
Code
- - - - - -
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This document is for informational purposes only and should not be considered as a binding description of the products or their performance in all applications. The performance data in this document depicts typical performance under controlled conditions. Actual performance may vary depending on the operating environment and application. Contact DBS to confirm suitability of the product for your application.
Head Office: Dynamic Boosting Systems,
10 Canbury Business Centre
Elm Crescent
Kingston upon Thames,
Surrey, KT2 6HJ
United Kingdom
Phone:+44 (0) 20 3417 4686 / +44 (0) 20 8546 6372
Email: [email protected]
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