Three phase synchronous or asynchronous

Integrated oil system

Semi-hermetic sealing

20 to 100 krpm

DBS ‘IAM’ Series High-Speed Motors and Generators

2

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.

1

2

3

4

3

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.

5 6

9

8

7

1

2

3

4

5

6

7

8

9

IAM

–SERIES

8

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.

5

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

6

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

enquiries@dynamicboost.com

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

- - - - - -

8

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: enquiries@dynamicboost.com

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